CN217915432U

CN217915432U - Head arrangement for a rotary shaver

Info

Publication number: CN217915432U
Application number: CN202221958245.1U
Authority: CN
Inventors: 金炳杰
Original assignee: Zhejiang Jingbo Hardware Technology Co ltd
Current assignee: Zhejiang Jingbo Hardware Technology Co ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-11-29
Anticipated expiration: 2032-07-28

Abstract

This scheme provides a tool bit device of rotation type razor, and it includes the drive shaft, installs the connector in the drive shaft, through the centre bore assembly move knife tackle, cover on the connector and establish the quiet sword lid on moving knife tackle, moving knife tackle including from interior to exterior in proper order with the concentric ring establish interior knife ring group and outer knife ring group move, still installed compensation mechanism on the connector, compensation mechanism with moving knife tackle upwards supporting for interior knife ring group and outer knife ring group correspond the circle with quiet sword lid lower surface and hug closely the cooperation. The tool bit device compensation mechanism can enable the inner moving cutter ring group and the outer moving cutter ring group to be tightly attached to and matched with the corresponding ring on the lower surface of the static cutter cover, solves the problem of processing limitation, can compensate in real time, namely, the moving cutter can also compensate in real time when being worn, ensures cutting force, prolongs service life, improves shaving skin feel, and meanwhile, has few and compact parts of the whole internal structure, is convenient to assemble and low in cost.

Description

Head device for rotary shaver

Technical Field

The utility model relates to a cutter head of a shaver, in particular to a cutter head of a rotary shaver.

Background

Traditional tool bit adopts a tool bit mostly, through the cooperation of tool bit and sword net, realize the cutting, and in order to improve cutting effect, the tool bit that adopts interior sword and outer sword to combine has appeared now, interior sword and outer sword rotate simultaneously promptly, and because the linear velocity of outer sword is great, consequently its outer sword more appears wearing and tearing than the interior sword in long-time use, and outer sword wearing and tearing are more, then can lead to the cutting effect variation between sword net and the outer sword, thereby influence the cutting effect of whole tool bit. For the production process, the linear speeds of the inner cutter and the outer cutter are different, the cutting rates of the inner and outer die heads of the fixed die and the reverse die are also different, and the relative height is obtained after the fixed die is ground. Moreover, the inner ring and the outer ring of the knife net are required to be on the same horizontal plane, and the limitation is very strong.

Disclosure of Invention

The utility model provides a bit device of a rotary shaver, which has compact structure, high cutting efficiency and long service life.

In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides a tool bit device of rotation type razor, its includes the drive shaft, install the connector in the drive shaft, through the centre bore assembly move knife tackle on the connector, the quiet sword lid of lid on moving knife tackle, move knife tackle including interior knife ring group and the outer knife ring group that moves that the concentric ring established in proper order from interior to exterior, still installed compensation mechanism on the connector, compensation mechanism move knife tackle upwards to support for interior knife ring group and outer knife ring group correspond the circle with quiet sword lid lower surface and hug closely the cooperation.

As an improvement: compensation mechanism including acting on the interior elastic component on the interior sword circle group of moving, interior elastic component connect the below of interior sword circle group of moving including, interior elastic component including the base ring of taking central through-hole, distribute along base ring outside circumference and have a plurality of slopes to upwarp bullet foot, the base ring on correspond bullet foot position and still be equipped with the breach, the base ring have the bellied spacing arch in oriented center along central through-hole inner wall, the last perisporium of connector on open the spacing groove of indulging that has axial extension, interior elastic component base ring insert spacing vertical groove through spacing arch and transversely spacing.

As an improvement: the elastic feet are formed on the bottom ring and are tilted upwards clockwise or anticlockwise.

As an improvement: compensation mechanism including being used in the outer elastic component of outer moving cutter ring group, outer elastic component connect the below of outer moving cutter ring group, outer elastic component including the base ring of taking the centre bore, along a plurality of neck portions that the base ring outer fringe is outwards outstanding and the circumference distributes, extend to both sides respectively from neck portion suddenly and form two ascending bullet arms of slope, the groove is greater than the length of two bullet arms between adjacent two neck portions that suddenly formed with, two bullet arms of groove top are relative and establish between, be equipped with on the neck portion position suddenly with connector adaptation and horizontal spacing connection structure of usefulness.

As an improvement: the connector include with axle sleeve, the body coupling of drive shaft adaptation or can dismantle the connection platform ring of connection in axle sleeve middle section periphery, be equipped with on the connection platform ring upper surface and supply outer movable cutter ring group can float a plurality of connection usefulness connect spacing post, outer movable ring group on be equipped with and connect the spacing hole of a plurality of that spacing post corresponds the adaptation.

As an improvement: the connector comprises a shaft sleeve matched with the driving shaft and a connecting table ring which is integrally connected or detachably connected on the periphery of the middle section of the shaft sleeve, a plurality of connecting limiting posts for the outer moving cutter ring group to be floatingly connected are arranged on the upper surface of the connecting table ring, a plurality of limiting holes correspondingly matched with the connecting limiting posts are arranged on the outer moving cutter ring group, a lower adapter matched with the protruding neck part connecting structure is arranged on the lower surface of the connecting table ring,

as an improvement: and a plurality of moving blades which extend upwards and have cutting edges at the tops are distributed on the moving blade ring group or/and the outer moving blade ring group along the circumference.

The utility model provides a beneficial effect is: the cutter head device compensation mechanism can enable the inner moving cutter ring group and the outer moving cutter ring group to be tightly attached to and matched with the corresponding ring on the lower surface of the static cutter cover, no matter whether the lower surface of the static cutter cover is a horizontal plane or not, namely the lower surface of the static cutter cover can be an inclined plane matched with the moving cutter of the moving cutter group, meanwhile, the height of the cutting edges of the inner moving cutter ring group and the outer moving cutter ring group does not have the requirement of the same height, the problem of processing limitation is solved, real-time compensation can be realized even when the moving cutter has the abrasion condition, the cutting force is guaranteed, the service life is prolonged, the skin feeling of shaving is improved, meanwhile, the whole internal structure is few and compact in parts, the assembly is convenient, and the cost is low.

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

Drawings

Fig. 1 is a schematic view of a first embodiment of a shaving head assembly for a rotary shaver according to the present invention.

Fig. 2 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 1.

Fig. 3 is an exploded view of fig. 2.

Fig. 4 is a schematic view of a second embodiment of a shaving head assembly for a rotary shaver according to the present invention.

Fig. 5 is an exploded view of fig. 3.

Detailed Description

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

As shown in fig. 1, fig. 2 and fig. 3, the first embodiment of the cutter head device of the rotary shaver of the present invention comprises a driving shaft, a connector 1 installed on the driving shaft, a movable cutter group 2 assembled on the connector 1 through a center hole, and a stationary cutter cover 3 covered on the movable cutter group 2, wherein the movable cutter group 2 comprises an inner movable cutter ring group 6 and an outer movable cutter ring group 7 which are sequentially and concentrically arranged from inside to outside, and the movable cutter ring group 6 and the outer movable cutter ring group 7 are distributed with a plurality of movable cutters 21 which extend upwards and have cutting edges at the top along the circumference. The connector 1 is also provided with a compensation mechanism which supports the movable cutter group 2 upwards, so that the inner movable cutter ring group and the outer movable cutter ring group are in close fit with the corresponding rings on the lower surface of the static cutter cover. Compensation mechanism including acting on interior elastic component 4 on interior movable cutter ring group, interior elastic component 4 connect the below of interior movable cutter ring group, interior elastic component 4 including the bottom ring 41 of taking central through hole 44, distribute along bottom ring outside circumference and have a plurality of slopes to rise up bullet foot 42, bottom ring 41 on correspond bullet foot 42 position and still be equipped with breach 43, bottom ring 41 have to the bellied spacing arch 45 in center along central through hole 44 inner wall, the last perisporium of connector 1 on open and to have axial extension's spacing longitudinal groove 11, interior elastic component 4 bottom ring 41 insert spacing longitudinal groove 11 transversely spacing through spacing arch 45. The elastic feet 42 are obliquely upwards tilted clockwise or anticlockwise on the bottom ring 41. The mechanism of interior elastic component 4 can not only realize real-time wearing and tearing compensation, and can fluctuate in the spacing longitudinal groove 11 because of spacing arch 45 for whole interior elastic component 4 has certain compensation of floating to moving cutter ring group, avoids central excessive pressure problem, further improves the travelling comfort of shaving, and tool bit protectiveness and security are high. The spring leg 42 of the present embodiment may be formed by directly punching and lifting from the side of the notch 43, or may be formed by connecting the spring leg 42 and the side of the notch 43.

The connector 1 include with axle sleeve 12, the body coupling of drive shaft adaptation or can dismantle the connection platform ring 13 of connection in axle sleeve middle section periphery, be equipped with on the connection platform ring 13 upper surface and supply outer movable cutter ring group can the floating connection a plurality of connect spacing post 14 of usefulness, outer movable ring group on be equipped with and connect the spacing hole of a plurality of that spacing post 14 corresponds the adaptation, the setting of connector 1 upper connection platform ring 13 is not only spacing interior movable cutter ring group 6 and outer movable cutter ring group 7, all sets up connection structure through connecting the platform ring, not only connect stably, clear structure, the while distributes evenly, centrality is strong to certain wall effect has.

As shown in fig. 4 and 5, the second embodiment of the cutter head device of the rotary shaver according to the present invention is to provide a compensation mechanism on the outer moving cutter ring set 7, i.e. the compensation mechanism includes an outer elastic member 5 acting on the outer moving cutter ring set 7, the outer elastic member 5 is connected below the outer moving cutter ring set 7, the outer elastic member 5 includes a base ring 51 with a central hole 56, a plurality of neck protrusions 52 protruding outwards along the outer edge of the base ring and distributed circumferentially, and two elastic arms 53 extending from the neck protrusions 52 to both sides respectively to form an upward inclination, an interval groove 54 formed between two adjacent neck protrusions is greater than the length of the two elastic arms 53, the two elastic arms above the interval groove 54 are arranged oppositely, and a connecting structure 55 for adapting to the connector 1 and for transverse spacing is provided at the position of the neck protrusions 52.

The connector 1 comprises a shaft sleeve 12 matched with a driving shaft, a connecting table ring 13 integrally connected or detachably connected on the periphery of the middle section of the shaft sleeve, a plurality of connecting limiting posts 14 for the outer moving cutter ring group to be floatingly connected are arranged on the upper surface of the connecting table ring 13, a plurality of limiting holes correspondingly matched with the connecting limiting posts 14 are arranged on the outer moving cutter ring group, a lower adapter 15 matched with a connecting structure 55 of a protruding neck part 52 is arranged on the lower surface of the connecting table ring 13,

the compensation mechanism can act on the inner moving cutter ring group 6 as shown in the first embodiment or act on the outer moving cutter ring group 7 as shown in the second embodiment, and naturally, the compensation mechanisms are arranged on both the inner moving cutter ring group 6 and the outer moving cutter ring group 7. The compensation structure of this embodiment can also be the compensation of unsteady tool bit, and the structure is retrencied, and the effect is stable, and processing is convenient.

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

Claims

1. The utility model provides a tool bit device of rotation type razor, its includes the drive shaft, install connector (1) in the drive shaft, through the centre bore assembly move knife tackle (2) on connector (1), the lid is established and is moved quiet sword lid (3) on knife tackle (2), its characterized in that: move knife tackle (2) including from interior to exterior interior sword circle group (6) and the outer sword circle group (7) that move that concentric ring established in proper order, still installed compensation mechanism on connector (1), compensation mechanism move knife tackle (2) and upwards support for interior sword circle group and the outer sword circle group that moves are closely cooperated with the corresponding circle of quiet sword lid lower surface.

2. The shaving head unit of a rotary shaver as claimed in claim 1, wherein: compensation mechanism including interior elastic component (4) on the interior movable cutter ring group of action, interior elastic component (4) connect the below of interior movable cutter ring group including, interior elastic component (4) including bottom ring (41) of taking central through hole (44), along bottom ring outside circumference distribution have a plurality of slopes to rise bullet foot (42), bottom ring (41) on correspond bullet foot (42) position and still be equipped with breach (43), bottom ring (41) have protruding spacing arch (45) to the center along central through hole (44) inner wall, the last perisporium of connector (1) on open and to have axial extension's spacing longitudinal groove (11), interior elastic component (4) bottom ring (41) insert spacing longitudinal groove (11) horizontal spacing through spacing arch (45).

3. The shaving head unit of a rotary shaver as claimed in claim 2, wherein: the elastic feet (42) are formed on the bottom ring (41) to tilt upwards clockwise or anticlockwise.

4. A shaving head device for a rotary shaver according to claim 1, 2 or 3, wherein: compensation mechanism including acting on outer elastic component (5) on outer sword circle group (7), outer elastic component (5) connect the below at outer sword circle group (7), outer elastic component (5) including base ring (51) of taking centre bore (56), along a plurality of protruding neck portion (52) of base ring outer fringe outwards protrusion and circumference distribution, extend to both sides respectively from protruding neck portion (52) and form ascending two bullet arms (53) of slope, between two adjacent protruding neck portions between form slot (54) be greater than the length sum of two bullet arms (53), two bullet arms above slot (54) are relative and establish between, be equipped with on protruding neck portion (52) position with connector (1) adaptation and horizontal spacing connection structure (55) of usefulness.

5. A shaving head unit for a rotary shaver according to claim 1, 2 or 3, wherein: connector (1) including with axle sleeve (12), the body coupling of drive shaft adaptation or can dismantle connection platform ring (13) of connection in axle sleeve middle section periphery, be equipped with on connection platform ring (13) upper surface and supply to move a plurality of that cutter ring group can floatingly connect usefulness outward and connect spacing post (14), outer movable ring group on be equipped with and connect the spacing hole of a plurality of that spacing post (14) correspond the adaptation.

6. The shaving head unit of a rotary shaver as claimed in claim 4, wherein: connector (1) include with axle sleeve (12), the body coupling of drive shaft adaptation or can dismantle connection ring (13) of connecting in axle sleeve middle section periphery, be equipped with on connection ring (13) upper surface and supply outer movable cutter ring group can floatably connect a plurality of usefulness and connect spacing post (14), outer movable ring group on be equipped with and connect the spacing hole of a plurality of that spacing post (14) correspond the adaptation, be equipped with on connection ring (13) lower surface with the lower adapter (15) of abrupt neck portion (52) connection structure (55) adaptation.

7. A shaving head unit for a rotary shaver according to claim 1, 2 or 3, wherein: and a plurality of moving blades (21) which extend upwards and have cutting edges at the tops are distributed on the moving blade ring group (6) or/and the outer moving blade ring group (7) along the circumference.

8. The shaving head unit of a rotary shaver as claimed in claim 4, wherein: and a plurality of moving blades (21) which extend upwards and have cutting edges at the tops are distributed on the circumference of the moving blade ring group (6) or/and the outer moving blade ring group (7).

9. A shaving head unit for a rotary shaver according to claim 5 wherein: and a plurality of moving blades (21) which extend upwards and have cutting edges at the tops are distributed on the circumference of the moving blade ring group (6) or/and the outer moving blade ring group (7).

10. The shaving head apparatus of claim 6, wherein: and a plurality of moving blades (21) which extend upwards and have cutting edges at the tops are distributed on the circumference of the moving blade ring group (6) or/and the outer moving blade ring group (7).