Rotary shaver

Abstract

The present application provides a rotary shaver, comprising an outer cutter, which comprises a center inner mesh cover, a spacer ring made of micro elastic material, and an outer ring mesh cover coaxial with the inner mesh cover and having different diameters, the spacer ring has a certain thickness, the inner side wall of the spacer ring is provided with an inner side ring groove adapted to the first eave edge, the lower bottom surface of the spacer ring is provided with a plurality of limiting convex buckles corresponding to the positioning holes on the second eave edge of the outer ring mesh cover, the center inner mesh cover and the outer ring mesh cover are connected in a limiting combination through the spacer ring to form an integrated body, and the thickness of the outer ring mesh cover is greater than that of the center inner mesh cover. The center inner mesh cover and the outer ring mesh cover are in non-contact, effectively avoiding the problems of vibration and extrusion deformation caused by the direct connection of the two single bodies, and the different surface connection of the spacer ring is beneficial to the design of the overall arc surface or the shaving surface with height difference of the mesh cover, improving the shaving comfort.

Description

TECHNICAL FIELD

[0001] The present application relates to a shaver, in particular to a rotary electric shaver. BACKGROUND

[0002] The rotary electric shaver is a kind of shaver that men often use, which mainly includes a mesh cover, a blade, a motor and a shell. The mesh cover has 1-3 annular shaving surfaces stretched from outside to inside, and reinforcing ribs are formed between adjacent annular shaving surfaces. A plurality of cutting holes are processed on each annular shaving surface, and the beard can be inserted into the holes. The micro motor drives the blade to rotate, and the beard inserted into the hole is cut off by using the shearing principle. At present, the mesh cover of the shaver circulating on the market has an outer diameter of less than 22 mm, the number of rings is basically 1-3, and the thickness of each annular shaving surface must be less than 0.15 mm to shave off the beard and leave no stubble. Limited by the thickness of the annular shaving surface and the outer diameter of the mesh cover, the width of each annular shaving surface is limited, and the effective shaving area of the mesh cover is small, which further causes slow shaving efficiency. In order to increase the effective shaving area of the mesh cover, the width of the annular shaving surface is greatly increased, and the effective shaving area of the mesh cover increases with the increase of the width of the ring. However, the ring that is widened is very fragile and easy to deform and break. When the outer diameter of the mesh cover is greater than 22 mm, the mesh cover is usually made of flexible material and has only one annular shaving surface. Since the mesh cover is flexible, the blade fitting surface matched with it is not precise, which further causes slow shaving efficiency, pulling of long beard, low service life of the mesh cover and easy breakage. Increasing the thickness of the annular shaving surface will cause incomplete shaving and unclean shaving, and the thicker the thickness is, the worse the shaving effect is. Increasing the hardness of the mesh cover material will greatly increase the difficulty and cost of mold manufacturing, workpiece stamping, cutting and grinding processing, and the toughness of the material will also be weakened, which is easy to break under external force.

[0003] The mesh cover of the existing rotary shaver has a plurality of annular array circular hair inlet holes arranged on the mesh cover for hair introduction, and then the hair is trimmed by using the rotation of the moving blade along the fitting end surface of the mesh cover to achieve hair removal. However, due to the too dense hair inlet holes on the existing mesh cover, the diameter of the hair inlet holes is too small. When the hair is too long, the shape of the hair will curl, which correspondingly increases the cross-sectional area of the hair, and the hair cannot pass through the hair inlet hole with a small diameter, so that the long hair cannot be removed. Opening too large hair inlet holes on the mesh cover made of flexible material will also affect the rigidity of the mesh cover. SUMMARY

[0004] The present application provides a rotary shaver with a combined mesh cover, which is not easy to deform, has stable connection structure and high shaving efficiency.

[0005] To solve the above technical problems, the present application adopts the following technical scheme: a rotary shaver, comprising a head and a body with an internal motor, the head comprising a head shell, an outer cutter and an inner cutter installed in the outer cutter, the motor output shaft driving the inner cutter in the head through a transmission assembly, the outer cutter being a combined mesh cover, that is, the outer cutter comprises a central inner mesh cover, a spacer ring made of micro elastic material and an outer ring mesh cover coaxial with the inner mesh cover, the central inner mesh cover comprising a central shaving surface and a first connecting body integrally formed and connected outward from the center, the end of the first connecting body being outwardly bent into a first eave edge, a plurality of short hair entry holes for hair entry being opened on the central shaving surface, the outer ring mesh cover comprising an outer support body, a second ring surface and a second connecting body integrally formed and connected, a plurality of long hair entry holes for hair entry being opened on the upper surface of the second ring surface, the end of the second connecting body being inwardly bent into a second eave edge, a plurality of positioning holes being distributed along the ring on the second eave edge, the aperture width of the long hair entry holes being greater than that of the short hair entry holes, the spacer ring having a certain thickness, an inner side ring groove being opened on the inner side wall of the spacer ring and being adapted for the first eave edge, a plurality of limiting convex buckles being provided on the lower bottom surface of the spacer ring and being adapted for the positioning holes on the second eave edge of the outer ring mesh cover, the central inner mesh cover and the outer ring mesh cover being limitingly and combinatively connected through the spacer ring to form an integral body, the thickness of the material of the outer ring mesh cover being greater than that of the central inner mesh cover.

[0006] As an improvement, the long hair entry holes on the second ring surface comprise inward long hair entry holes extending radially inward from the second ring surface to the second connecting body and outward long hair entry holes extending radially outward from the second ring surface to the outer support body, the outward long hair entry holes and the inward long hair entry holes being non-communicated on the second ring surface, a plurality of inward long hair entry holes of the same type being arranged in segments to form inward long hair entry hole segments, a plurality of outward long hair entry holes of the same type being arranged in segments to form outward long hair entry hole segments, and there being intervals between two inward long hair entry hole segments and between two outward long hair entry hole segments on the second ring surface.

[0007] As an improvement, the inward long hair entry holes are in the shape of a gradually opened large mouth at the connection between the second ring surface and the second connecting body.

[0008] As an improvement, the inward long hair entry holes are in the shape of a water drop with the upper part being small and the lower part being large from the second ring surface to the second connecting body.

[0009] As an improvement, the long hair entry holes further comprise a plurality of radial long hair entry holes extending radially on the second ring surface and away from the outer support body and the second connecting body at both ends, that is, the radial long hair entry holes are non-penetratingly opened radially on the second ring surface, and the plurality of radial long hair entry holes are distributed alternately with the outward long hair entry holes on the second ring surface.

[0010] As an improvement: the center shaving surface with short beard entry holes is an arc surface with an arch, the center shaving surface is arranged outward and downward from the center in the axial section, and the short beard entry holes on the first connecting body are radially extended to the first connecting body.

[0011] As an improvement: the inner cutter comprises an inner moving cutter assembly matched with the center inner ring cover and an outer ring moving cutter matched with the outer ring cover, the inner and outer moving cutter assemblies are separately arranged on the transmission assembly, the inner and outer moving cutter assemblies have two independent moving cutter holders, i.e. the inner moving cutter holder disc and the outer moving cutter holder, a plurality of outer moving cutters extending upward with blade edges at the top are distributed on the outer moving cutter holder in a circumferential direction, the plurality of outer moving cutters cooperate with the lower surface of the second ring surface of the outer ring cover to shave, the outer moving cutter is integrally formed with the outer moving cutter holder, the inner moving cutter assembly comprises the inner moving cutter holder disc provided with a plurality of radially extending installation grooves, the limiting body fixedly installed below the inner moving cutter holder disc, and a plurality of inner moving cutters respectively inserted into the installation grooves with blade edges upward, the installation grooves are provided with spaces for the inner moving cutters to move in the height direction, and the inner moving cutters are inserted into the installation grooves and limited by the limiting body below the inner moving cutter holder disc.

[0012] As an improvement: the lower portion of the outer moving cutter holder is provided with an outer elastic member elastically supporting the outer moving cutter holder, and the outer moving cutter holder is elastically supported by the outer elastic member so that the top blade edge of the outer moving cutter is tightly attached to the lower surface of the second ring surface of the outer ring cover.

[0013] As an improvement: the transmission assembly comprises a three-pronged coupling structure for realizing the circumferential swing connection of the cutter head, the three-pronged coupling structure comprises a connecting disc arranged on the motor output shaft and a three-pronged swing member, the connecting disc is open at the top and is provided with three disc wall petals distributed in a spaced ring shape, two disc wall petals on the connecting disc form a track groove extending downward from the disc opening between the disc wall petals, thereby forming a plug-in space on the connecting disc surrounded by the three disc wall petals, the three-pronged swing member comprises a driving head at the upper portion of the three-pronged swing member and connected with the moving cutter assembly, a swing shaft head at the lower portion of the three-pronged swing member and plugged into the plug-in space of the connecting disc, and three protrusions provided on the outer circumferential wall of the swing shaft head and slidably matched with the three track grooves, the three protrusions form a three-pronged head on the swing shaft head and slidably matched with the three track grooves, thereby realizing the swing transmission connection between the swing shaft head and the connecting disc after the three-pronged swing member is plugged into the connecting disc.

[0014] The beneficial effects provided by the present application are: the combined mesh cover is adopted, the spacer ring made of micro-elastic material is adopted to connect the two single bodies of the combined mesh cover, the spacer ring connects the two single bodies in a non-planar manner, the two single bodies are non-contact, the vibration and extrusion deformation caused by the direct connection of the two single bodies are effectively avoided, the non-planar connection of the spacer ring is beneficial to the design of the overall arc surface or the shaving surface with height difference of the mesh cover, and the shaving comfort is improved. The spacer ring also has lubrication and skin care properties, hides the connection position, and is overall elegant and generous. The spacer ring has a certain buffering effect and flat self-correcting property on the connected two single bodies, so as to maintain the flatness of the single body and improve the service life. The combined mesh cover can form a shaving surface that is good for shaving long hairs outside and good for shaving short hairs inside, is more practical, does not pinch or pull hairs, has very good shaving skin feeling, can meet the trimming of different shapes or long and short hairs, effectively improves the shaving efficiency, has overall deformation resistance, stable connection structure, and high shaving efficiency. The thickness of the material of the outer ring cover is greater than that of the center inner cover, which ensures sharpness and good support, strengthens the strength of the mesh cover, and facilitates processing and assembly.

[0015] The present application will be further described in detail below in combination with the drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of an embodiment of the rotary shaver provided by the present application.

[0017] Figure 2 is Figure 1 a sectional view.

[0018] Figure 3 is Figure 1 an exploded structure schematic diagram.

[0019] Figure 4 is Figure 1 an exploded structure schematic diagram of the outer cutter in

[0020] Figure 5 is Figure 2 a structure schematic diagram of the three-prong coupling structure of the transmission assembly in DETAILED DESCRIPTION

[0021] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the embodiment of the rotary shaver of the present application comprises a head, a body with a built-in motor, the head comprises a head shell, an outer cutter, an inner cutter installed in the outer cutter, the motor output shaft 1 drives the inner cutter in the head to move through a transmission assembly, the outer cutter is a combined mesh cover, that is, the outer cutter comprises a central inner mesh cover 2, a spacer ring 4 made of micro elastic material, and an outer ring mesh cover 3 coaxial with the inner mesh cover but with different diameters from inside to outside, the central inner mesh cover 2 comprises a central shaving surface 2.1 and a first connecting body 2.2 integrally formed and connected from the center outward, the end of the first connecting body 2.2 is outwardly bent into a first eave edge 2.3, a plurality of short hair entry holes 2.11 for hair entry are opened on the central shaving surface 2.1, the outer ring mesh cover 3 comprises an outer support body 3.1, a second ring surface 3.2, and a second connecting body 3.3 integrally formed and connected in sequence, a plurality of long hair entry holes for hair entry are opened on the upper surface of the second ring surface 3.2, the end of the second connecting body 3.3 is inwardly bent into a second eave edge 3.4, a plurality of positioning holes 3.5 are distributed along the ring on the second eave edge 3.4, the aperture width of the long hair entry hole is greater than that of the short hair entry hole 2.11, the spacer ring 4 has a certain thickness, an inner side ring groove 4.1 adapted for the first eave edge 2.3 to be embedded is opened on the inner side wall of the spacer ring 4, in order to improve the connectivity, the first eave edge 2.3 can be formed with a micro-rolled edge. The lower bottom surface of the spacer ring 4 is provided with a plurality of limiting convex buckles 4.2 corresponding to the positioning holes 3.5 on the second eave edge 3.4 of the outer ring mesh cover 3, the upper surface of the spacer ring 4 is a lubricating surface 4.3 with lubricating effect, which can be formed by a lubricating coating or can be formed by the material of the spacer ring 4 itself. The spacer ring 4, as a filler between the central inner mesh cover 2 and the outer ring mesh cover 3, can also solve the problems of hair clamping and dirt hiding in the gap of the split mesh cover, facilitate cleaning and replacement, and reduce cost. The central inner mesh cover 2 and the outer ring mesh cover 3 are limitingly and combinatively connected to form an integral body through the spacer ring 4. According to the need, the outer ring mesh cover 3 can be multi-stage split combined, and each two stages are connected and fixed through the spacer ring 4, so as to realize a multi-ring mesh cover. The thickness of the material of the outer ring mesh cover 3 is greater than that of the material of the central inner mesh cover 2, and the thickness of the above-mentioned central inner mesh cover can be as thin as 5-6 silk.

[0022] In order to improve the rate of entering the whiskers, the long whisker entering hole on the second ring surface 3.2 in the embodiment includes an inward long whisker hole 3.21 extending radially inward from the second ring surface 3.2 to the second connecting body 3.3, and an outward long whisker hole 3.22 extending radially outward from the second ring surface 3.2 to the outer support body 3.1. The outward long whisker hole 3.22 and the inward long whisker hole 3.21 are not connected on the second ring surface 3.2. A plurality of inward long whisker holes 3.21 of the same type are arranged in segments to form an inward long whisker hole segment, and a plurality of outward long whisker holes 3.22 of the same type are arranged in segments to form an outward long whisker hole segment. There is a gap between the inward long whisker hole segments and between the outward long whisker hole segments on the second ring surface 3.2. The above layout can not only ensure the entry rate of long and short hair and improve the shaving efficiency, but also ensure the strength of the mesh cover as a whole, so that the assembled mesh cover is not easy to deform. The above scheme ensures the rigidity and stability while expanding the distribution rate of the long whisker entering hole, especially for the entry rate of long curly hair.

[0023] In order to facilitate the entry of long curly soft hair, the inward long whisker hole 3.21 is gradually opened at the connection between the second ring surface 3.2 and the second connecting body 3.3. The inward long whisker hole 3.21 of the embodiment is in the shape of a water droplet that is small at the top and large at the bottom from the second ring surface 3.2 to the second connecting body 3.3. The long whisker entering hole further includes a plurality of radial long whisker holes 3.23 extending radially on the second ring surface 3.2 and having both ends away from the outer support body 3.1 and the second connecting body 3.3, i.e. the radial long whisker holes 3.23 are not through on the second ring surface 3.2, and the plurality of radial long whisker holes 3.23 are distributed alternately with the outward long whisker holes 3.22 on the second ring surface 3.2. Long curly soft hair is conveniently cut by the inner cutter, and the uncut long curly soft hair is easily slipped away, effectively avoiding the phenomenon of pinching and pulling the whiskers.

[0024] The center shaving surface 2.1 with the short whisker entering hole 2.11 in the embodiment is an arc surface that is arched upward. The center shaving surface 2.1 is arranged outward and downward from the center on the axial section. The short whisker entering hole at the position adjacent to the first connecting body 2.2 extends radially to the first connecting body 2.2 on the center shaving surface 2.1. The arc surface of the center shaving surface 2.1 can naturally match the contact with the skin of the face, making the user more comfortable, facilitating the entry of short whiskers, and shaving more cleanly. The layout design of the center shaving surface can inhibit the damage to the skin while deep shaving.

[0025] The inner cutter comprises an inner moving cutter group 7 matched with the center inner ring cover 2, an outer ring moving cutter 8 matched with the outer ring cover 3, and the inner moving cutter group 7 and the outer ring moving cutter 8 are separately arranged on the transmission assembly and have two moving cutter holders, i.e. the inner moving cutter holder disc 71 and the outer moving cutter holder 81. The inner cutter has two moving cutter holders, which effectively avoids the mutual influence between the inner and outer moving cutters, and the inner and outer moving cutters have higher adhesion with the outer cutter, and the cutting is more smooth. The outer moving cutter holder 81 is circumferentially distributed with a plurality of outer moving cutters 811 extending upward and having blade edges at the top, the plurality of outer moving cutters 811 cooperate with the lower surface of the second annular surface 3.2 of the outer ring cover 3 to shave, the outer moving cutter 811 is integrally formed with the outer moving cutter holder 81, the inner moving cutter group 7 comprises the inner moving cutter holder disc 71 provided with a plurality of radially extending installation grooves 711, a limiting body 9 fixedly arranged below the inner moving cutter holder disc 71, and a plurality of inner moving cutters 72 respectively inserted into the installation grooves 711 and having blade edges upward, the installation grooves 711 are provided with spaces for the inner moving cutters 72 to move in the height direction, and the inner moving cutters are inserted into the installation grooves 711 and limited by the limiting body 9 arranged below the inner moving cutter holder disc 71. The lower part of the inner moving cutter 72 is provided with a limiting hole, the limiting hole is a door-shaped hole with an opening at the lower part, i.e. the lower bottoms of the inner moving cutter 72 are oppositely arranged in the form of hook-shaped bottoms, and the lower edges of the two hook-shaped bottoms are on the same straight line in the hole of the door-shaped hole. The limiting body 9 comprises a ring piece body 91 in the form of a ring and matched with the moving cutter holder disc, a plurality of leaf spring branches 92 extending inward from the inner circumferential wall of the ring piece body 91 and respectively extending toward the corresponding installation grooves, each leaf spring branch 92 simultaneously locks the inner moving cutter 72 in the corresponding installation groove 711 and applies an upward pressing force to the inner moving cutter holder disc 71, i.e. the free end of the leaf spring branch 92 is provided with two n-shaped side bending walls with a certain length, the leaf spring branch 92 extends into the limiting hole and elastically locks the moving cutter, the lower bottoms of the two side bending walls of the leaf spring branch 93 are respectively pressed on the lower edges of the hole of the limiting hole, forming a balanced two-cross-shaped locking structure, the top wall of the n-shaped leaf spring branch 93 is an arc-shaped wall, and the top wall and the bending wall are connected in the form of a circular arc, so that the inner moving cutter holder disc 71 is in linear contact with the arc-shaped wall of the leaf spring branch when the leaf spring branch applies the upward pressing force to the inner moving cutter holder disc 71. The protruding free positioning function of the leaf spring branch 93 enables the leaf spring branch 93 to stably press on the lower bottom surface of the inner moving cutter holder disc 71 and provide an upward pressing force as needed, so as to realize the self-correcting cooperation with the center inner ring cover 2.

[0026] The lower part of the outer moving cutter holder 81 is provided with an outer elastic member 82 elastically supporting the upper part of the outer moving cutter holder 81, so that the top blade of the outer moving cutter 811 is tightly attached to the lower surface of the second annular surface 3.2 of the outer ring cover 3. During shaving, the outer moving cutter holder 81 can also float up and down to fit the user's face and improve the user experience.

[0027] The transmission assembly of the embodiment comprises a three-pronged coupling structure for realizing the circumferential swing connection of the cutter head, the three-pronged coupling structure comprises a connecting disc 6 arranged on the motor output shaft and a three-pronged swing piece 5, the connecting disc 6 is provided with three disc wall petals 62 which are spaced and arranged in a ring shape, and the track grooves 61 extending downward from the disc opening along the disc wall are formed between the disc wall petals 62 on the connecting disc 6, so that the insertion groove space is formed by the three disc wall petals 62 on the connecting disc 6, the three-pronged swing piece 5 comprises a driving head 51 arranged on the upper part of the three-pronged swing piece 5 and connected with the moving cutter assembly, a swing shaft head 52 arranged on the lower part of the three-pronged swing piece 5 and inserted into the insertion groove space of the connecting disc, and three protrusions 53 arranged on the outer circumferential wall of the swing shaft head 52 and slidably matched with the three track grooves 61, the three protrusions 53 form the three-pronged head which is slidably matched with the three track grooves 61 on the swing shaft head, so as to realize the swing transmission connection between the swing shaft head 52 and the connecting disc 6 after the three-pronged swing piece 5 is inserted into the connecting disc 6. In order to make the three-pronged coupling structure have certain damping when in action, the damping spring 10 can also be arranged on the three-pronged swing piece 5 in the three-pronged coupling structure, so as to improve the hand feeling and ensure that the cutter head can be automatically reset in the pressure-free state. Since the three-pronged coupling structure is arranged in the transmission assembly between the cutter head and the machine body, the installation space and the concentricity problem can be effectively solved, the swing structure arranged outside the cutter head can provide the basis and guarantee for the waterproofness of the cutter head or the whole machine, the cutter head has high integrity, is more convenient to disassemble, and has higher aesthetic degree. The whole cutter head can realize three-dimensional floating swing, breaks the swing limitation in the transmission reciprocating direction, has higher shaving comfort, and also makes the adhesion of the moving cutter assembly and the static cutter higher and improves the shaving efficiency. The structure of the cutter head is exquisite, reasonable, and has strong universality.

[0028] Although the present application has been disclosed with specific embodiments as above, it is not intended to limit the present application, and any person skilled in the art can make some changes and modifications without departing from the spirit and scope of the present application, therefore the protection scope of the present application should be defined by the scope of the appended claims.

Claims

1. A rotary shaver, comprising a shaver head and a body with a built-in motor, wherein the shaver head includes a shaver head housing, an outer blade, and an inner blade installed inside the outer blade, and the motor output shaft (1) drives the inner blade inside the shaver head to move through a transmission assembly, characterized in that: The outer blade is a combined mesh cover, which consists of a central inner mesh cover (2), a rib ring (4) made of micro-elastic material, and an outer ring mesh cover (3) that is coaxial with the inner mesh cover but has a different diameter. The central inner mesh cover (2) includes a central shaving surface (2.1) and a first connecting body (2.2) that are integrally formed and connected from the center outward. The end of the first connecting body (2.2) is bent outward to form a first eave (2.3). The central shaving surface (2.1) has multiple short beard entry holes (2.11) for hair to enter. The outer ring mesh cover (3) includes an outer support body (3.1), a second ring surface (3.2), and a second connecting body (3.3) that are integrally formed and connected in sequence. The upper surface of the second ring surface (3.2) has multiple long beard entry holes for hair to enter. The end of the second connector (3.3) is bent inward to form a second eave (3.4). Several positioning holes (3.5) are distributed along the ring on the second eave (3.4). The hole width of the long beard entry hole is greater than that of the short beard entry hole (2.11). The partition ring (4) has a certain thickness. The inner side wall of the partition ring (4) has an inner ring groove (4.1) that is adapted to the first eave (2.3) for insertion. The bottom surface of the partition ring (4) has several limiting protrusions (4.2) that are adapted to the positioning holes (3.5) on the second eave (3.4) of the outer ring mesh cover (3). The central inner mesh cover (2) and the outer ring mesh cover (3) are connected by the partition ring (4) to form a whole. The thickness of the material of the outer ring mesh cover (3) is greater than that of the material of the central inner mesh cover (2).

2. The rotary shaver according to claim 1, characterized in that: The long beard-like holes on the second annular surface (3.2) include an inward long beard-like hole (3.21) extending radially inward from the second annular surface (3.2) to the second connector (3.3) and an outward long beard-like hole (3.22) extending radially outward from the second annular surface (3.2) to the outer support (3.1). The outward long beard-like hole (3.22) and the inward long beard-like hole (3.21) are not connected on the second annular surface (3.2). Several inward long beard-like holes (3.21) of the same hole type are arranged in segments to form inward long beard-like hole groups, and several outward long beard-like holes (3.22) of the same hole type are arranged in segments to form outward long beard-like hole groups. There are gaps between pairs of inward long beard-like hole groups and between pairs of outward long beard-like hole groups on the second annular surface (3.2).

3. The rotary shaver according to claim 2, characterized in that: The inwardly extending perforation (3.21) is gradually widened at the junction of the second annular surface (3.2) and the second connector (3.3).

4. The rotary shaver according to claim 3, characterized in that: The inwardly extending perforation (3.21) extends from the second annular surface (3.2) toward the second connector (3.3) in a teardrop shape, smaller at the top and larger at the bottom.

5. The rotary shaver according to claim 1, 2, 3, or 4, characterized in that: The aforementioned long beard entry hole also includes a plurality of radial long beard holes (3.23) that extend radially on the second annular surface (3.2) and whose two ends are respectively far away from the outer support body (3.1) and the second connector body (3.3). That is, the radial long beard holes (3.23) are radially non-penetrating on the second annular surface (3.2), and the plurality of radial long beard holes (3.23) are staggered with the outward long beard holes (3.22) on the second annular surface (3.2).

6. The rotary shaver according to claim 1, 2, 3, or 4, characterized in that: The central shaving surface (2.1) with a short beard entry hole (2.11) is an upwardly arched arc surface. The central shaving surface (2.1) is set from the center outwards and downwards on the axial section. The short beard entry hole on the central shaving surface (2.1) adjacent to the first connector (2.2) extends radially to the first connector (2.2).

7. The rotary shaver according to claim 5, characterized in that: The central shaving surface (2.1) with a short beard entry hole (2.11) is an upwardly arched arc surface. The central shaving surface (2.1) is set from the center outwards and downwards on the axial section. The short beard entry hole on the central shaving surface (2.1) adjacent to the first connector (2.2) extends radially to the first connector (2.2).

8. The rotary shaver according to claim 1, 2, 3, or 4, characterized in that: The inner blade includes an inner moving blade assembly (7) adapted to the central inner mesh cover (2) and an outer ring moving blade (8) adapted to the outer ring mesh cover (3). The inner moving blade assembly (7) and the outer ring moving blade (8) are separately arranged on the transmission assembly and have two independent moving blade holders, namely the inner moving blade holder plate (71) and the outer moving blade holder (81). The outer moving blade holder (81) has several upwardly extending outer moving blades (811) with the cutting edge at the top distributed along the circumference. The several outer moving blades (811) cooperate with the lower surface of the second ring surface (3.2) of the outer ring mesh cover (3) to shave. The outer moving blade (811) and the outer moving blade holder (81) are integrally formed. The inner moving blade assembly (7) includes an inner moving blade holder disk (71) with multiple radially extending mounting slots (711), a limiting body (9) fixedly installed below the inner moving blade holder disk (71), and multiple inner moving blades (72) that are respectively inserted into the mounting slots (711) with their cutting edges facing upward. The mounting slots (711) have space for the inner moving blades (72) to move along the height direction. The inner moving blades are inserted into the mounting slots (711) and limited by the limiting body (9) placed below the inner moving blade holder disk (71).

9. The rotary shaver according to claim 8, characterized in that: The external moving blade holder (81) has an external elastic member (82) below it for elastic support. Under the action of the external elastic member (82), the top blade of the external moving blade (811) is pressed tightly against the lower surface of the second ring surface (3.2) of the outer ring mesh cover (3).

10. The rotary shaver according to claim 1, 2, 3, or 4, characterized in that: The transmission assembly includes a three-pronged coupling structure that enables the circumferential swing connection of the cutter head. The three-pronged coupling structure includes a connecting disc (6) and a three-pronged swing member (5) mounted on the motor output shaft. The connecting disc (6) has an opening at the top and three disc wall petals (62) arranged in a ring at intervals. A track groove (61) extending downward from the disc opening along the disc wall is formed between each pair of disc wall petals (62) on the connecting disc (6), thereby forming a slot space on the connecting disc (6) by the three disc wall petals (62) surrounding it. The three-pronged swing member (5) includes a three-pronged swing member located on the three-pronged swing member. The upper part of the component (5) has a drive head (51) that is linked with the moving knife assembly. The lower part of the three-pronged swing component (5) has a swing shaft head (52) that is adapted to be inserted into the space of the connecting plate slot. The outer peripheral wall of the swing shaft head (52) is provided with three protrusions (53) that can be slidably adapted to the three track grooves (61). The three protrusions (53) form a three-pronged head on the swing shaft head that can be slidably engaged with the three track grooves (61), thereby realizing the swing shaft head (52) and the connecting plate (6) can swing transmission connection after the three-pronged swing component (5) is inserted into the connecting plate (6).

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