CN210452832U - Reciprocating type razor head - Google Patents

Abstract

The utility model relates to a reciprocating razor head, which is characterized in that the outer knife net comprises a first knife groove and a second knife groove with one open side, two adjacent side walls of the first knife groove and the second knife groove are jointed and connected into a whole to form a fixed guide rail in the middle of the outer knife net, and two ends of the guide rail are respectively connected with a base to fix the outer knife net on the base; the beard inlet holes are long-strip-shaped and are arranged on the upper end surfaces of the first cutter groove and the second cutter groove at equal intervals, and two ends of the beard inlet holes respectively penetrate through the side walls of two sides of the first cutter groove and the second cutter groove; the utility model has the advantages that the first cutter groove and the second cutter groove are arranged on the outer cutter net, and the adjacent side walls of the two cutter grooves are jointed to form a guide rail, thereby not only improving the bending strength of the outer cutter net, but also effectively preventing the outer cutter net from bending and deforming in the production process and improving the yield; meanwhile, the outer cutter net can be directly fixed on the base by utilizing the guide rail, so that the connection structure of the outer cutter net is optimized, and the production and the assembly are more convenient and faster.

Description

Reciprocating type razor head

Technical Field

The utility model relates to a shaving cutter, more specifically the tool bit that says so relates to a reciprocating type electric shaver's that is used for individual cleaning nursing, mainly used shaves the hair on the human skin.

Background

Chinese patent CN206982746U publication date: 2018-02-09, discloses a shaving cutter and a shaving cutter head, and particularly discloses the following technical scheme: the shaver comprises a fixed frame, a vibrator, a first shaver moving blade and a second shaver moving blade, wherein the first shaver moving blade and the second shaver moving blade are limited to be of an integrated structure and are T-shaped, two groups of moving blade cutting edges are respectively arranged on two sides of a T-shaped horizontal plane, and the first shaver moving blade and the second shaver moving blade are arranged on the vibrator and are respectively provided with a spring between the first shaver moving blade and the vibrator. In order to facilitate the first shaving movable knife and the second shaving movable knife to reciprocate under the driving of the driving part, the vibrator is matched with the fixed frame by adopting the positioning column and the positioning groove, and the ball is arranged between the vibrator and the fixed frame, so that the vibrator can horizontally reciprocate along the fixed frame under the driving of the driving part; in order to solve the problem of unsmooth hair entering, the face cover blade is arranged on the fixing frame, the groove blades which are communicated up and down are arranged on the two sides and the upper end surface of the face cover blade, and the hair is cut off through the matching of the first shaving movable blade and the second shaving movable blade with the groove blades, so that the hair shaving function is realized.

By adopting the technical scheme, the hair-care hair: firstly, the surface of the face cap blade is not fully utilized, a larger area on the upper surface of the face cap blade is blank, the face cap blade is mainly limited by the structures of the first shaving movable blade and the second shaving movable blade, and the wider face cap blade is easy to deform during heat treatment to cause careless selection, so that the area for collecting hairs is smaller, and the working efficiency of shaving hairs is relatively reduced; secondly, a plurality of springs are respectively arranged between the first shaving movable cutter, the second shaving movable cutter and the vibrator, so that the structure is relatively complex, and the assembly difficulty is improved; and thirdly, a groove rail matching structure of the positioning column and the positioning groove is adopted between the vibrator and the fixing frame, so that the contact area between the vibrator and the fixing frame is correspondingly increased in the using process, the friction coefficient in working is increased, and the temperature rise of the blade and the sound during shaving operation is caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides a reciprocating type shaver head which can not only enlarge the hair collecting area and improve the hair shaving efficiency; meanwhile, the structure of the cutter head can be optimized, so that the production and assembly are facilitated, and the working sound and the working temperature of the blade are reduced.

In order to solve the technical problems, the technical scheme adopted by the utility model is a reciprocating razor head, which comprises a base and an outer razor web which is arranged on the base and is provided with a beard inlet hole, an inner razor head which is attached to the inner plane of the beard inlet hole of the outer razor web is arranged below the outer razor web, the inner razor head is fixedly connected with an inner razor seat, and the inner razor seat is in linkage connection with a driving part; the outer knife net comprises a first knife groove and a second knife groove, one side of the first knife groove and one side of the second knife groove are in an open shape, two adjacent side walls of the first knife groove and the second knife groove are attached and connected into a whole, so that a fixed guide rail is formed in the middle of the outer knife net, and two ends of the guide rail are respectively connected with the base to fix the outer knife net on the base; the beard inlet holes are long-strip-shaped and are arranged on the upper end surfaces of the first cutter groove and the second cutter groove at equal intervals, and two ends of the beard inlet holes respectively penetrate through the side walls of two sides of the first cutter groove and the second cutter groove; the inner cutter head comprises a guide groove with one open side, a first cutter head and a second cutter head which extend outwards and horizontally are arranged on the end faces of two side walls of the guide groove, the first cutter head and the second cutter head are respectively arranged in a first cutter groove and a second cutter groove corresponding to the outer cutter net, a guide rail is arranged in the guide groove, an elastic device which drives the end faces of the first cutter head and the second cutter head to be respectively attached to the bottom planes in the corresponding first cutter groove and the second cutter groove is arranged between the base and the inner cutter seat, the inner cutter seat is in linkage connection with the driving part, and the guide groove of the inner cutter head can horizontally reciprocate along the guide rail of the outer cutter net under the driving of the driving part.

Furthermore, the first cutter head and the second cutter head are both formed by a plurality of sharp-horn-shaped isosceles triangle-shaped cutter edges which are horizontally arranged at intervals, the height of each cutter edge is smaller than the width of the first cutter groove or the second cutter groove, the cutter edges are matched with the width of the first cutter groove or the second cutter groove, and the end surfaces of the cutter edges are attached to each other; and the joints of the first cutter head and the second cutter head with the guide groove are arc transition angles.

Furthermore, the width of the guide groove of the inner cutter head is larger than that of the guide rail of the outer cutter net, spherical protrusions are respectively arranged on opposite side walls at two ends in the guide groove, and the distance between the spherical protrusions on the two side walls is matched with the width of the guide rail.

Furthermore, the bending parts of the first knife groove and the second knife groove of the outer knife net are provided with arc chamfers, the height of the guide rail of the outer knife net is larger than the side walls of the first knife groove and the second knife groove, positioning columns extending outwards are arranged at the two ends of the guide rail respectively and are integrated with the guide rail into a whole, the base is correspondingly provided with positioning holes, and the positioning columns at the two ends of the guide rail are inserted into the positioning holes to fixedly connect the outer knife net with the base.

Furthermore, the elastic device comprises a return spring and an installation column, the installation column is respectively arranged on the base and the inner cutter holder, and the return spring is arranged between the base and the inner cutter holder, and two ends of the return spring are respectively sleeved on the installation column and are abutted against and matched with the base and the inner cutter holder.

Further, the upper surface of interior blade holder be equipped with the draw-in groove, interior tool bit arrange in the draw-in groove with interior blade holder fixed connection, the erection column sets up at the lower terminal surface both ends department of interior blade holder, the center department of terminal surface is equipped with the spread groove under the interior blade holder, drive unit's drive shaft is arranged in the spread groove and is connected with interior blade holder linkage.

Furthermore, the base comprises a left fixing frame and a right fixing frame which are symmetrically arranged and connecting plates which are arranged at two sides of the two fixing frames; the inner cutter seat is arranged between the left fixing frame and the right fixing frame, and the connecting groove of the inner cutter seat penetrates through the connecting plate and is arranged outside the base to be in linkage connection with the driving part; the positioning holes are respectively arranged on the opposite side walls of the left fixing frame and the right fixing frame, the shapes of the positioning holes are matched with the positioning columns, and the positioning columns at the two ends of the outer cutter net guide rail are respectively inserted into the positioning holes of the left fixing frame and the right fixing frame to enable the outer cutter net to be fixedly arranged between the left fixing frame and the right fixing frame.

The utility model has the advantages that the first cutter groove and the second cutter groove are arranged on the outer cutter net, and the adjacent side walls of the two cutter grooves are jointed to form a guide rail, so that the bending strength of the outer cutter net can be improved, the bending deformation of the outer cutter net in the production process can be effectively prevented, and the yield can be improved; meanwhile, the outer cutter mesh can be directly fixed on the base by utilizing the guide rail, so that the connection structure of the outer cutter mesh is optimized, and the production and the assembly are more convenient and faster; secondly, the first cutter groove and the second cutter groove are provided with long strips and penetrate through beard inlet holes in the two side walls of the first cutter groove and the second cutter groove, so that the effective area of the outer cutter net is utilized to the maximum extent, and the shaving effect is improved; and the elastic device is additionally arranged between the inner cutter holder and the base, so that the hair shaving effect of the inner cutter head can be effectively ensured, and the hair shaving performance is prevented from being influenced by a gap between the inner cutter head and the outer cutter net.

Drawings

Fig. 1 is a three-dimensional structure diagram of a reciprocating type shaver head according to an embodiment of the present invention

Figure 2 is a middle sectional structure view of a reciprocating razor head of the present invention

FIG. 3 is a three-dimensional structure diagram of the outer blade net of the embodiment of the present invention

FIG. 4 is a front view of the inner cutter head in the embodiment of the present invention

FIG. 5 is a perspective view of an inner cutter head according to an embodiment of the present invention

FIG. 6 is a sectional view of the inner cutter head and the outer cutter net according to the embodiment of the present invention

FIG. 7 is a perspective view of the left fixing frame of the embodiment of the present invention

FIG. 8 is a perspective view of the right fixing frame of the embodiment of the present invention

FIG. 9 is a perspective view of an inner blade holder according to an embodiment of the present invention

Detailed Description

The embodiments of the present invention will be further explained with reference to the accompanying drawings 1-9:

as shown in fig. 1-3, the utility model relates to a reciprocating razor head, which comprises a base 1 and an outer blade net 2 installed on the base 1 and having a beard inlet 21, an inner blade 3 attached to the inner plane of the beard inlet 21 of the outer blade net 2 is arranged under the outer blade net 2, the inner blade 3 is fixedly connected with an inner blade holder 4, and the inner blade holder 4 is linked with a driving part; in order to solve the technical problem that the outer knife net 2 is easy to deform in the production process, the outer knife net 2 comprises a first knife groove 22 and a second knife groove 23, one surface of each knife groove 22 is open, two adjacent side walls of the first knife groove 22 and the second knife groove 23 are attached and connected into a whole, so that a fixed guide rail 24 is formed in the middle of the outer knife net 2, and two ends of the guide rail 24 are respectively connected with the base 1, so that the outer knife net 2 is fixed on the base 1; the outer knife net 2 is provided with the two independent first knife grooves 22 and the two independent second knife grooves 23, the adjacent side walls of the two knife grooves are attached to form a guide rail 24 (in the actual production process, the guide rail is formed by continuously folding), and the guide rail 24 is positioned in the middle of the outer knife net 2, so that the bending resistance and the surface strength of the outer knife net 2 are correspondingly increased, the thermal deformation of the outer knife net 2 can be effectively prevented in the heat treatment process, and the yield in the production process is improved; secondly, the two ends of the guide rail 24 can be connected with the base 1, so that the outer cutter net 2 can be directly fixed on the base 1 without fixing the outer cutter net 2 by other parts, and the structure of the shaver head is relatively optimized, so that the shaver head is more convenient and faster to produce and assemble.

As shown in fig. 3, in order to increase the hair collecting area and improve the shaving efficiency, the hair inlet holes 21 are long and arranged at the upper end surfaces of the first cutter groove 22 and the second cutter groove 23 at equal intervals, and two ends of the hair inlet holes 21 respectively penetrate through the side walls of two sides of the first cutter groove 22 and the second cutter groove 23; through arranging a plurality of long-strip-shaped beard inlet holes 21 which penetrate through the first blade groove 22 and the second blade groove 23 on the upper surfaces of the first blade groove 22 and the second blade groove 23, short hairs can enter the beard inlet holes through the end surfaces of the first blade groove and the second blade groove, long hairs can enter the beard inlet holes through the outer sides of the first blade groove and the second blade groove, so that the blade head can shave the long hairs and the short hairs simultaneously, and the universality of the product is improved. By adopting the structure, the area for collecting the hair on the upper surface of the outer cutter net 2 is increased, the hair shaving amount of shaving the hair at one time is increased, and the hair shaving efficiency is improved; meanwhile, long hairs can enter the hair inlet holes 21 through the side walls of the first cutter groove 22 and the second cutter groove 23, and the use range of the cutter head is furthest enlarged.

As shown in fig. 2, 4 and 5, in order to prevent the inner cutter head 3 from being displaced when horizontally reciprocated, affecting shaving efficiency and improving shaving effect, the inner cutter head 3 includes a guide groove 31 having an open shape at one side, a first cutter head 32 and a second cutter head 33 which extend outwards and horizontally are arranged at the end surfaces of the two side walls of the guide groove 31, the first cutter head 32 and the second cutter head 33 are respectively arranged in the corresponding first cutter groove 22 and the second cutter groove 23 of the outer cutter net 2, the guide rail 24 is arranged in the guide groove 31, an elastic device 5 for driving the end surfaces of the first cutter head 32 and the second cutter head 33 to be respectively attached to the bottom planes in the corresponding first cutter groove 22 and the corresponding second cutter groove 23 is arranged between the base 1 and the inner cutter seat 3, the inner cutter seat 4 is connected with the driving part in a linkage way, and the guide groove 31 of the inner cutter head 3 can horizontally reciprocate along the guide rail 24 of the outer cutter net 2 under the driving of the driving part; the guide groove 31 is arranged on the inner cutter head 3, so that the horizontal reciprocating direction of the inner cutter head 3 can be controlled by utilizing the matching of the guide rail 24 of the outer cutter net 2 and the guide groove 31, the inner cutter head 3 is effectively prevented from being misplaced or deviated in the using process, the use safety of the inner cutter head 3 is ensured, and the service life of the shaving cutter head is prolonged; and the first cutter head 32 and the second cutter head 33 which extend outwards are arranged on the two side walls of the guide groove 31, so that the hairs entering the first cutter groove 22 and the second cutter groove 22 can be cut off by utilizing the cooperation of the first cutter head 32 and the second cutter head 33 and the beard inlet holes 21 on the first cutter groove 22 and the second cutter groove 23, and the hair collecting area is increased to the maximum extent to improve the hair shaving efficiency. The elastic device 5 is additionally arranged between the base 1 and the inner cutter seat 4, when in use, the elastic force of the elastic device 5 can be used for driving the first cutter head 32 and the second cutter head 33 to be respectively attached to the corresponding first cutter groove 22 and the corresponding second cutter groove 23 so as to ensure the hair shaving effect, and the hair shaving performance of the cutter heads is effectively prevented from being influenced by the gap generated between the inner cutter head 3 and the outer cutter mesh 2.

As shown in fig. 4-5, since the area of the hair collecting holes 21 is increased on the outer blade net 2, more hair will enter the outer blade net 2 through the hair collecting holes 21 of the first blade groove 22 and the second blade groove 23 during use, in order to improve the shaving efficiency, the first blade head 32 and the second blade head 33 are both composed of a plurality of horizontally spaced and sharp-angled isosceles triangle blades 34, the number of the blades 34 is greater than that of the hair collecting holes 21, the height of the blades 34 is less than the width of the first blade groove 22 or the second blade groove 23, and is matched with the width of the first blade groove 22 or the second blade groove 23 and the end surfaces of the blades are attached; the joints of the first cutter head 32 and the second cutter head 33 with the guide groove 31 are both arc transition angles R1; the first cutter head 32 and the second cutter head 33 which are formed by a plurality of triangular cutter edges 34 are arranged in the first cutter groove 22 and the second cutter groove 23, so that when hairs enter the hair inlet holes 21 in the first cutter groove 22 and the second cutter groove 23, the first cutter head 32 and the second cutter head 33 on the inner cutter head 3 are driven by the inner cutter base 4 to horizontally reciprocate, at the moment, the plurality of cutter edges 34 of the first cutter head 32 and the second cutter head 33 are correspondingly matched with the bottom side walls and the hole side walls of the hair inlet holes 21 in the first cutter groove 22 and the second cutter groove 23 to cut off the hairs in the hair inlet holes, and the number of the hairs to be shaved at one time is correspondingly increased due to the increase of the area of the hair inlet holes 21, so that the hair shaving efficiency is greatly improved; of course, the blade 34 may be shaped not like an isosceles triangle, but like a right triangle or a parallelogram, the hair can be cut and shaved, but the blade 34 may be shaped like an isosceles triangle, so that the head of the blade is sharp, and the shaving work of the body hair of each part of the human body can be satisfied.

As shown in fig. 6, in order to avoid the technical problems that the temperature of the outer cutter mesh 2 and the inner cutter mesh 3 is increased due to friction with the guide rail 24 of the outer cutter mesh 2 when the inner cutter mesh 3 horizontally reciprocates under the drive of the inner cutter holder 4, and the use comfort is affected, the width of the guide groove 31 of the inner cutter mesh 3 is greater than that of the guide rail 24 of the outer cutter mesh 2, the opposite side walls at the two ends in the guide groove 31 are respectively provided with spherical protrusions 35, and the distance between the spherical protrusions 35 on the two side walls is matched with the width of the guide rail 24; through set up spherical protrusion 35 on the relative lateral wall in guide way 31 both ends respectively to make spherical protrusion 31's on the both sides wall of guide way 31 distance and guide rail 24 width looks adaptation, just so can change the face contact between guide rail 24 and the guide way 31 into the point contact, the very big area of contact between reduction guide way 31 and the guide rail 24, reduce coefficient of friction, thereby can alleviate the noise of razor head during operation and reduce the operating temperature of outer sword net 2 and interior tool bit 3, the maximum use travelling comfort who guarantees the razor head.

As shown in fig. 3, in order to improve the comfort and safety of the razor head during use, the bending positions of the first knife slot 22 and the second knife slot 23 of the outer knife net 2 are both provided with arc-shaped chamfers R2, and the bending positions of the first knife slot 22 and the second knife slot 23 are provided with arc-shaped chamfers R2, so that in the use process, the skin cannot be burred when the arc-shaped chamfers R2 are in contact with the skin, the skin can be protected, and the comfort and safety of the razor head during use can be effectively improved. The height of the guide rail 24 of the outer cutter net 2 is greater than the side walls of the first cutter groove 22 and the second cutter groove 23, positioning columns 25 extending outwards are respectively arranged at two ends of the guide rail 24 and are integrated with the guide rail 24 into a whole, positioning holes 11 are correspondingly arranged on the base 1, and the positioning columns 25 at two ends of the guide rail 24 are inserted into the positioning holes 11 so that the outer cutter net 2 is fixedly connected with the base 1; the end part of the guide rail 24 is additionally provided with the positioning column 25 with an integral structure, so that the guide rail 24 with the positioning column 25 can be formed by one-time punch forming during production and then bent; just can directly utilize in the locating hole 25 that reference column 25 inserted base 1 in the assembling process, realize fast the assembly and the fixed mounting of outer cutter mesh 2, not only be convenient for produce, simultaneously, still can effectively promote the work efficiency during the assembly, reduction in production cost.

As shown in fig. 1-2, the elastic device 5 includes a return spring 51 and a mounting post 52, the mounting post 52 is respectively disposed on the base 1 and the inner tool holder 4, the return spring 51 is disposed between the base 1 and the inner tool holder 4, and two ends of the return spring are respectively sleeved on the mounting post 52 and are pressed against the base 1 and the inner tool holder 4; a return spring 51 is arranged between the base 1 and the inner cutter seat 4, so that the inner cutter head 3 and the outer cutter net 2 can be attached in real time, and the shaving effect and the shaving benefit of the cutter head are ensured; secondly, under the action of the stress of the outer cutter mesh 2, the return spring 51 can move downwards under the action of the external force, so that the functions of protecting the outer cutter mesh 2 and the inner cutter head 3 are realized, and a synchronous automatic return function can be realized when the external force disappears; of course, from the technical purpose to be achieved, the spring can be omitted, for example, the metal elastic sheet can be used for achieving the same purpose, the same technical effect is achieved, but the spring is a standard component, is easy to obtain in the market, and is lower in cost, so that the spring is a preferred embodiment.

As shown in fig. 2, 4, 5 and 9, a locking groove 41 is formed in the upper surface of the inner tool apron 4, the shape and size of the locking groove 41 are matched with those of the guide groove 31, the guide groove 31 of the inner tool bit 3 is arranged in the locking groove 41 of the inner tool apron 4 and fixedly connected with the inner tool apron 4, the mounting posts 52 are arranged at two ends of the lower end surface of the inner tool apron 4, the center of the lower end surface of the inner tool apron 4 is provided with a connecting groove 42, and the driving shaft of the driving part is arranged in the connecting groove 42 and is connected with the inner tool apron 4 in a linkage manner; through setting up draw-in groove 41, recycle in the interior tool bit 3 go up guide way 31 card go into in draw-in groove 41, interior tool bit 3 just so forms fixed connection with interior tool holder 4 to need not with the help of screw or riveting, make the fixed connection that can realize interior tool bit 3 and interior tool holder 4, reduced production technology, improved the equipment benefit and reduction in production cost.

As shown in fig. 2, 7 and 8, the base 1 includes a left fixing frame 12 and a right fixing frame 13 which are symmetrically arranged, and a connecting plate 14 which is installed at two sides of the two fixing frames; the inner cutter seat 4 is arranged between the left fixing frame 12 and the right fixing frame 13, and the connecting groove 42 of the inner cutter seat penetrates through the connecting plate 14 and is arranged outside the base 1 to be in linkage connection with the driving part; the positioning holes 11 are respectively arranged on the opposite side walls of the left fixing frame 12 and the right fixing frame 13, the shapes of the positioning holes are matched with those of the positioning columns 25, and the positioning columns 25 at the two ends of the guide rail 24 of the outer cutter net 2 are respectively inserted into the positioning holes 11 of the left fixing frame 12 and the right fixing frame 13, so that the outer cutter net 2 is fixedly arranged between the left fixing frame 12 and the right fixing frame 13; the base 1 is designed into the left and right fixing frames 12 and 13 which are symmetrical and identical, and the two sides of the left and right fixing frames 12 and 13 are respectively connected with the two sides of the two connecting plates 14, so that the production and the assembly are convenient, the assembly benefit is improved, and meanwhile, the connecting groove 42 of the inner cutter holder 4 can conveniently penetrate through the connecting plates 14 to be arranged outside the base 1 to be in linkage connection with the driving shaft of the driving part.

The above embodiments should not be considered as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of the present invention.

Claims (7)

1. A reciprocating shaver head comprises a base and an outer shaver net which is arranged on the base and is provided with a beard inlet, wherein an inner shaver head which is attached to the inner plane of the beard inlet of the outer shaver net is arranged below the outer shaver net, the inner shaver head is fixedly connected with an inner shaver seat, and the inner shaver seat is in linkage connection with a driving part; the outer knife net is characterized by comprising a first knife groove and a second knife groove, wherein one side of the first knife groove and one side of the second knife groove are in an open shape, two adjacent side walls of the first knife groove and the second knife groove are attached and connected into a whole, so that a fixed guide rail is formed in the middle of the outer knife net, and two ends of the guide rail are respectively connected with a base so that the outer knife net is fixed on the base; the beard inlet holes are long-strip-shaped and are arranged on the upper end surfaces of the first cutter groove and the second cutter groove at equal intervals, and two ends of the beard inlet holes respectively penetrate through the side walls of two sides of the first cutter groove and the second cutter groove; the inner cutter head comprises a guide groove with one open side, a first cutter head and a second cutter head which extend outwards and horizontally are arranged on the end faces of two side walls of the guide groove, the first cutter head and the second cutter head are respectively arranged in a first cutter groove and a second cutter groove corresponding to the outer cutter net, a guide rail is arranged in the guide groove, an elastic device which drives the end faces of the first cutter head and the second cutter head to be respectively attached to the bottom planes in the corresponding first cutter groove and the second cutter groove is arranged between the base and the inner cutter seat, the inner cutter seat is in linkage connection with the driving part, and the guide groove of the inner cutter head can horizontally reciprocate along the guide rail of the outer cutter net under the driving of the driving part.

2. The reciprocating razor head as claimed in claim 1, wherein the first and second razor heads are each formed by a plurality of horizontally spaced sharp-angled isosceles triangular blades, the height of the blade being less than the width of the first or second razor slot and adapted to the width of the first or second razor slot and the end faces of the blades being in abutment; and the joints of the first cutter head and the second cutter head with the guide groove are arc transition angles.

3. A reciprocating razor head as claimed in claim 1 or 2, wherein the width of the guide groove of the inner head is greater than the width of the guide rail of the outer blade mesh, and spherical protrusions are respectively provided on opposite side walls at both ends of the guide groove, and the distance between the spherical protrusions on both side walls is adapted to the width of the guide rail.

4. The reciprocating razor head as claimed in claim 3, wherein the bends of the first and second blade grooves of the outer blade net are provided with arc-shaped chamfers, the height of the guide rail of the outer blade net is greater than the side walls of the first and second blade grooves, and the two ends of the guide rail are respectively provided with positioning posts extending outwards and integrated with the guide rail, the base is correspondingly provided with positioning holes, and the positioning posts at the two ends of the guide rail are inserted into the positioning holes to fixedly connect the outer blade net with the base.

5. The reciprocating razor head according to claim 4, wherein the resilient means comprises a return spring and a mounting post, the mounting post is disposed on the base and the inner blade holder, respectively, and the return spring is disposed between the base and the inner blade holder, and both ends of the return spring are sleeved on the mounting post and press-fitted against the base and the inner blade holder, respectively.

6. The reciprocating razor head according to claim 5, wherein the inner blade holder has a slot on the upper surface thereof, the inner blade holder is fixedly connected to the inner blade holder in the slot, the mounting posts are disposed at both ends of the lower end surface of the inner blade holder, a connecting slot is disposed at the center of the lower end surface of the inner blade holder, and the driving shaft of the driving member is disposed in the connecting slot and is coupled to the inner blade holder.

7. The reciprocating razor head according to claim 6, wherein the base comprises a left and a right symmetrically disposed mounts and connecting plates mounted on opposite sides of the mounts; the inner cutter seat is arranged between the left fixing frame and the right fixing frame, and the connecting groove of the inner cutter seat penetrates through the connecting plate and is arranged outside the base to be in linkage connection with the driving part; the positioning holes are respectively arranged on the opposite side walls of the left fixing frame and the right fixing frame, the shapes of the positioning holes are matched with the positioning columns, and the positioning columns at the two ends of the outer cutter net guide rail are respectively inserted into the positioning holes of the left fixing frame and the right fixing frame to enable the outer cutter net to be fixedly arranged between the left fixing frame and the right fixing frame.

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