CN215903550U

CN215903550U - Tool bit device and razor

Info

Publication number: CN215903550U
Application number: CN202121602845.XU
Authority: CN
Inventors: 叶裕钧
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2022-02-25
Anticipated expiration: 2031-07-12

Abstract

The utility model relates to the technical field of shaving equipment, in particular to a cutter head device and a shaver. The cutter head device comprises a fixing structure and a driving structure. The fixed knot constructs including the base that has the holding chamber and the knife rest that is located the holding chamber, and the swivelling chute has still been seted up to the base, and the through-hole of intercommunication swivelling chute is seted up to the inner wall that the holding chamber set up and the holding chamber with the swivelling chute interval, and the one end of knife rest is provided with the blade, and the other end of knife rest extends the setting towards the through-hole. The drive structure includes drive shaft and drive division, and the one end of drive shaft is located the swivelling chute and the other end of drive shaft rotates and connects the base and extend to the holding chamber through the through-hole, and the drive division sets up in the other end of drive shaft and the axial of duplex winding drive shaft and be the spiral setting, and the drive division is equipped with the spigot surface of sliding connection knife rest other end. According to the utility model, the relative positions of the blade and the base are adjusted, so that the size of a gap between the blade and the edge of the opening is adjusted, and the blade has different sharpness.

Description

Tool bit device and razor

Technical Field

The utility model relates to the technical field of shaving equipment, in particular to a cutter head device and a shaver.

Background

At present, when a blade of a shaver is fixed, a positioning hole is firstly formed in a base, then a pressing cover piece is assembled on the base, a buckling pin is convexly arranged on the pressing cover piece and inserted into the positioning hole, and then the blade is fixed between the pressing cover piece and the base through the buckling fit of a metal piece and the buckling pin.

However, in the manner of fixing the blade by using the metal piece, after the blade is fixed, the position between the blade and the base is not easy to adjust, so that the purpose of adjusting the sharpness of the blade to adapt to different users is achieved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a cutter head device, and aims to solve the problem of how to adjust the position of a blade relative to a base.

The present invention provides a blade head device for fixing a blade, the blade head device comprising:

the fixing structure comprises a base with an accommodating cavity and a tool rest positioned in the accommodating cavity, the base is also provided with a rotating groove, the accommodating cavity and the rotating groove are arranged at intervals, the inner wall of the accommodating cavity is provided with a through hole communicated with the rotating groove, one end of the tool rest is provided with the blade, and the other end of the tool rest extends towards the through hole; and

the driving structure comprises a driving shaft and a driving part, one end of the driving shaft is located in the rotating groove, the other end of the driving shaft is connected with the base in a rotating mode and extends to the accommodating cavity through the through hole, the driving part is arranged at the other end of the driving shaft and wound around the axial direction of the driving shaft to form a spiral arrangement, the driving part is provided with a guide surface in sliding connection with the other end of the tool rest, and the guide surface is wound around the axial direction of the driving shaft to form a spiral surface arrangement.

In one embodiment, the driving structure further includes an engaging portion provided on the tool holder and spirally engaged with the driving portion, and the engaging portion is spirally provided around the axial direction of the driving shaft.

In one embodiment, the two driving parts are arranged, the spiral directions of the two driving parts are opposite, and the two meshing parts are also arranged and are respectively matched with the two driving parts in a spiral mode.

In one embodiment, the cutter head device further comprises a guide structure for guiding the cutter frame to slide along the axial direction of the driving shaft, the cutter frame is provided with a guide cavity, the bottom of the guide cavity is provided with a guide hole communicated with the accommodating cavity, the guide structure comprises a guide post, one end of the guide post is located in the guide cavity, and the other end of the guide post penetrates through the guide hole to be connected with the bottom of the accommodating cavity.

In one embodiment, the guiding structure further comprises an elastic member with elastic restoring force, one end of the elastic member is connected with the guiding column, and the other end of the elastic member abuts against and presses the tool holder towards the bottom of the accommodating cavity.

In one embodiment, the guide structure further comprises a limiting cover, the limiting cover is connected with the free end of the guide post, a limiting groove is formed in the cavity wall of the accommodating cavity, and the edge of the limiting cover is located in the limiting groove and is arranged at a preset distance from the bottom of the limiting groove.

In one embodiment, two of the guide structures are provided, and the drive shaft is located between the two guide structures.

In one embodiment, the fixing structure further includes a pressing cover cooperating with the tool holder to clamp the blade, the tool bit device further includes a magnetic attraction structure, the magnetic attraction structure includes a first connecting member located on the pressing cover and a second connecting member located on the tool holder, at least one of the first connecting member and the second connecting member is a magnetic attraction member for generating a magnetic field, and the magnetic attraction cooperation between the first connecting member and the second connecting member is realized.

In one embodiment, the pressing cover is provided with a magnetic suction cavity for the first connecting piece to be arranged, and the tool rest is provided with a magnetic suction groove for the second connecting piece to be arranged at a position corresponding to the magnetic suction cavity.

The application still provides a razor, it includes the tool bit device, the razor still including install in the knife rest the handle that blade and confession staff held, the one end of handle is connected the base.

The utility model has the technical effects that: drive the drive division through the rotation of drive shaft and rotate along the screw direction, thereby make knife rest and spigot surface take place relative slip, change the rotary motion of drive division into the rectilinear motion of knife rest, the knife rest removes or removes towards the chamber end in holding chamber along the chamber end direction that deviates from the holding chamber along the axial of drive shaft promptly, and the blade removes along with the knife rest in the lump, thereby adjust the relative position of blade and base, and then adjust the gap of blade and opening edge, finally realize the purpose of adjusting the blade sharpness, the different user of adaptation.

Drawings

Fig. 1 is a perspective view of a shaver according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of the shaver of fig. 1;

FIG. 3 is a perspective view of the drive shaft of FIG. 2;

FIG. 4 is a perspective view of the tool holder of FIG. 2;

FIG. 5 is a cross-sectional schematic view of the bit device of FIG. 1;

fig. 6 is a schematic cross-sectional view of another embodiment of the cutting-head device of fig. 1.

The correspondence between reference numbers and names in the drawings is as follows:

100. a shaver; 10. a fixed structure; 11. a base; 12. a gland; 13. a decorative cover; 20. a drive structure; 21. a drive shaft; 16. a handle; 30. a magnetic attraction structure; 31. a first connecting member; 32. a second connecting member; 121. a magnetic attraction cavity; 101. a blade; 15. a tool holder; 151. a guide cavity; 40. a guide structure; 41. a limiting cover; 42. a guide post; 43. an elastic member; 22. a drive section; 221. a guide surface; 111. an accommodating cavity; 112. a through hole; 113. a rotating tank; 211. a knob; 212. screwing a sleeve; 213. a screw; 23. an engaging portion; 152. a magnetic attraction groove; 153. a guide hole; 155. a limiting groove; 116. a gap.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "vertical", "parallel", "bottom", "angle", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship.

Referring to fig. 1 to 3, the present embodiment provides a cutter head device for fixing a blade 101, and optionally, the blade 101 is disposed in a sheet shape. The bit device comprises a fixation structure 10 and a drive structure 20. The fixing structure 10 includes a base 11 having a receiving cavity 111 and a tool holder 15 located in the receiving cavity 111. Optionally, the receiving cavity 111 has an opening, and the tool holder 15 is located in the receiving cavity 111 through the opening. The base 11 is further provided with a rotating groove 113, the accommodating cavity 111 and the rotating groove 113 are arranged at an interval, a through hole 112 communicated with the rotating groove 113 is formed at the bottom of the accommodating cavity 111, one end of the cutter holder 15 is provided with the blade 101, and the other end of the cutter holder 15 extends towards the through hole 112. The blades 101 have a gap 116 with the edge of the opening for shaving beard. The driving structure 20 includes a driving shaft 21 and a driving portion 22, one end of the driving shaft 21 is located in the rotating groove 113, the other end of the driving shaft 21 is rotatably connected to the base 11 and extends to the accommodating cavity 111 through the through hole 112, the driving portion 22 is disposed at the other end of the driving shaft 21 and spirally disposed around the axial direction of the driving shaft 21, the driving portion 22 is provided with a guiding surface 221 slidably connected to the other end of the tool holder 15, and the guiding surface 221 is spirally disposed around the axial direction of the driving shaft 21. Referring to fig. 4 to 6, optionally, any moving point on the guide surface 221 slides along the guide surface 221 and moves along the axial direction of the driving shaft 21 at the same time, and the distance from the moving point to the bottom of the cavity of the accommodating cavity 111 gradually increases or gradually decreases, that is, when the driving shaft 21 rotates under the action of an external moment, the guide surface 221 pushes the tool holder 15 to move towards the direction away from the bottom of the cavity of the accommodating cavity 111, or drives the tool holder 15 to move towards the bottom of the cavity of the accommodating cavity 111, so as to achieve the purpose of adjusting the relative position of the blade 101 and the base 11. It will be appreciated that the direction of movement of the tool holder 15 is related to the helical direction of the drive portion 22 and the direction of rotation of the drive shaft 21.

Referring to fig. 1 to 3, the driving portion 22 is driven to rotate along the spiral direction by the rotation of the driving shaft 21, so that the tool holder 15 and the guiding surface 221 slide relatively, and the rotational motion of the driving portion 22 is converted into a linear motion of the tool holder 15, that is, the tool holder 15 moves along the axial direction of the driving shaft 21 along the direction away from the cavity bottom of the accommodating cavity 111 or moves towards the cavity bottom of the accommodating cavity 111, and the blade 101 moves along with the tool holder 15, so as to adjust the relative positions of the blade 101 and the base 11, and further adjust the gap 116 between the blade 101 and the opening edge, and finally achieve the purpose of adjusting the sharpness of the blade 101.

Referring to fig. 1 to 3, optionally, the driving shaft 21 includes a knob 211 located in the rotation slot 113 and controlled by a human hand, a rotating sleeve 212 located in the accommodating cavity 111 and provided with the driving portion 22, and a screw 213 connecting the knob 211 and the rotating sleeve 212. The driving portion 22 is provided on an end surface of the swivel nut 212. One end of the screw 213 is located in the turn sleeve 212, and the other end of the screw 213 is threadedly coupled to the knob 211.

Alternatively, the driver 22 and the swivel sleeve 212 are integrally formed.

Referring to fig. 1 to 3, in one embodiment, the driving structure 20 further includes an engaging portion 23 disposed on the tool holder 15 and spirally engaged with the driving portion 22, and the engaging portion 23 is spirally disposed around the axial direction of the driving shaft 21. Alternatively, the screw arrangement of the engaging portion 23 is adapted to the driving portion 22 so that the driving tool holder 15 is smoothly slid in the axial direction of the driving shaft 21 by the screw engagement of the engaging portion 23 and the driving portion 22. Alternatively, the engaging portion 23 is also provided with a guide surface 221, and the guide surface 221 of the engaging portion 23 and the guide surface 221 of the driving portion 22 are slidably engaged, so that the tool holder 15 is driven to slide in the axial direction of the drive shaft 21.

Alternatively, the engagement portion 23 and the blade holder 15 are integrally formed.

Referring to fig. 4 to 6, in one embodiment, two driving portions 22 are provided, the two driving portions 22 are disposed in opposite spiral directions, and two engaging portions 23 are disposed and are respectively spirally engaged with the two driving portions 22. Alternatively, the two driving portions 22 are provided symmetrically with respect to the central axis of the drive shaft 21, or the two driving portions 22 are arranged in sequence in the radial direction of the drive shaft 21. By providing the drive shaft 21 with the two drive portions 22, the smoothness and reliability of the axial sliding of the tool holder 15 along the drive shaft 21 are improved.

Referring to fig. 1 to 3, in an embodiment, the cutter head device further includes a guiding structure 40 for guiding the cutter holder 15 to slide along the axial direction of the driving shaft 21, the cutter holder 15 defines a guiding cavity 151, a guiding hole 153 communicating with the accommodating cavity 111 is defined in a bottom of the guiding cavity 151, the guiding structure 40 includes a guiding post 42, one end of the guiding post 42 is located in the guiding cavity 151, and the other end of the guiding post 42 penetrates through the guiding hole 153 and is connected to the bottom of the accommodating cavity 111. Optionally, a threaded hole is formed in the bottom of the mounting cavity, while the other end of the guide post 42 is provided with an external thread, and the guide post 42 is screwed in the threaded hole. The tool holder 15 is guided to slide smoothly by the engagement of the guide hole 153 and the guide post 42.

In one embodiment, the guiding structure 40 further comprises an elastic member 43 having an elastic restoring force, one end of the elastic member 43 is connected to the guiding post 42, and the other end of the elastic member 43 abuts and presses the tool holder 15 toward the bottom of the receiving cavity 111. Alternatively, the elastic member 43 is a tube spring, which is sleeved around the guide post 42, and one end of the tube spring is connected to the guide post 42, and the other end of the tube spring abuts against the orifice edge of the guide hole 153.

Referring to fig. 4 to 6, in an embodiment, the guiding structure 40 further includes a limiting cover 41, the limiting cover 41 is connected to the free end of the guiding post 42, a limiting groove 155 is formed on the cavity wall of the accommodating cavity 111, and an edge of the limiting cover 41 is located in the limiting groove 155 and is disposed at a predetermined distance from a groove bottom of the limiting groove 155. Alternatively, the tool holder 15 can be prevented from excessively moving out of the accommodating chamber 111 by the engagement of the groove bottom of the stopper groove 155 and the stopper cover 41. Optionally, one end of the tube spring abuts against the limiting cover 41, and the limiting groove 155 is disposed in an annular groove structure.

Referring to fig. 1 to 3, in one embodiment, two guide structures 40 are provided, and the driving shaft 21 is located between the two guide structures 40. The two guide structures 40 improve the stability of the movement of the tool holder 15. Alternatively, two guide cavities 151 are opened on the tool holder 15, the two guide posts 42 are respectively located in the two guide cavities 151, and the driving shaft 21 is located between the two guide cavities 151.

In one embodiment, the fixing structure 10 further includes a pressing cover 12 cooperating with the tool holder 15 to clamp the blade 101, the tool bit device further includes a magnetic attraction structure 30, the magnetic attraction structure 30 includes a first connecting member 31 located on the pressing cover 12 and a second connecting member 32 located on the tool holder 15, at least one of the first connecting member 31 and the second connecting member 32 is a magnetic attraction member for generating a magnetic field, and the first connecting member 31 and the second connecting member 32 are magnetically engaged. Alternatively, the cutting edge of the blade 101 is exposed laterally between the gland 12 and the edge of the opening so that hairs can be shaved. The pressing cover 12 is connected with the tool holder 15 through the magnetic attraction structure 30, so that the assembly and disassembly are convenient. Optionally, three magnetic attraction structures 30 are arranged at intervals, and the first connecting piece 31 and the second connecting piece 32 are both permanent magnets.

Referring to fig. 1 to 3, in an embodiment, the pressing cover 12 is provided with a magnetic attraction cavity 121 for the first connecting member 31 to be disposed, and the tool holder 15 is provided with a magnetic attraction groove 152 for the second connecting member 32 to be disposed at a position corresponding to the magnetic attraction cavity 121. Optionally, the magnetic suction cavities 121 are open cavity structures, and the fixing structure 10 further includes a device cover connected to the pressing cover 12, and the decorative cover 13 covers the openings of the magnetic suction cavities 121.

Referring to fig. 4 to fig. 6, the present invention further provides a shaver 100, the shaver 100 includes a cutter head device, and the specific structure of the cutter head device refers to the above embodiments, and since the shaver 100 adopts all technical solutions of all the above embodiments, all the beneficial effects brought by the technical solutions of the above embodiments are also achieved, and are not described in detail herein.

The shaver 100 further comprises a blade 101 and a handle 16 for a human hand to hold. Alternatively, the handle 16 and base 11 are both made of a plastic material and are integrally formed by an injection molding process.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A bit device for securing a blade, the bit device comprising:

2. The cutter head device of claim 1 wherein: the driving structure further comprises a meshing part which is arranged on the tool rest and is in spiral fit with the driving part, and the meshing part is spirally arranged around the axial direction of the driving shaft.

3. The cutter head device of claim 2 wherein: the driving parts are arranged in two, the spiral directions of the two driving parts are opposite, and the meshing parts are also arranged in two and are respectively in spiral fit with the two driving parts.

4. A bit device as claimed in any one of claims 1 to 3, wherein: the cutter head device further comprises a guide structure used for guiding the cutter frame to follow the axial sliding of the driving shaft, a guide cavity is formed in the cutter frame, a guide hole communicated with the accommodating cavity is formed in the cavity bottom of the guide cavity, the guide structure comprises a guide column, one end of the guide column is located in the guide cavity, and the other end of the guide column penetrates through the guide hole and is connected with the cavity bottom of the accommodating cavity.

5. The cutter head device of claim 4 wherein: the guide structure further comprises an elastic piece with elastic restoring force, one end of the elastic piece is connected with the guide post, and the other end of the elastic piece is abutted against and presses the tool rest towards the cavity bottom of the accommodating cavity.

6. The cutter head device of claim 5 wherein: the guide structure further comprises a limiting cover, the limiting cover is connected with the free end of the guide column, a limiting groove is formed in the cavity wall of the accommodating cavity, and the edge of the limiting cover is located in the limiting groove and is arranged at a preset distance from the bottom of the limiting groove.

7. The cutter head device of any one of claims 5 to 6 wherein: the guide structure is provided with two, the drive shaft is located two between the guide structure.

8. A bit device as claimed in any one of claims 1 to 3, wherein: the fixed knot construct still include with the knife rest cooperation is with the centre gripping the gland of blade, the tool bit device still includes magnetism and inhales the structure, magnetism is inhaled the structure and is included to be located first connecting piece on the gland and to be located second connecting piece on the knife rest, first connecting piece with at least one magnetism for producing magnetic field in the second connecting piece is inhaled the piece, just first connecting piece with the cooperation is inhaled to second connecting piece magnetism.

9. The cutter head device of claim 8 wherein: the press cover is provided with a magnetic suction cavity for the first connecting piece to be arranged, and the position of the knife rest corresponding to the magnetic suction cavity is provided with a magnetic suction groove for the second connecting piece to be placed.

10. A shaving razor, comprising: the cutter head device according to any one of claims 1 to 9, wherein the shaver further comprises the blade mounted on the cutter holder and a handle for holding by a human hand, one end of the handle being connected to the base.