CN215790014U - Blade, cutting unit, shaver head and electric shaver - Google Patents

Abstract

The application provides a blade, a cutting unit, a shaver head and an electric shaver, wherein the blade comprises a fixed seat and a cutting disc made of liquid metal or titanium alloy; the cutting disc comprises a cutter disc and cutting blades, the cutting blades are arranged on the cutter disc, the cutter disc is installed on the fixed seat, one end, far away from the cutter disc, of each cutting blade is provided with a cutting face, and a cutting edge is arranged on one side edge of each cutting face. The cutting blade of this application, through the cutting dish that uses liquid metal or titanium alloy preparation, can guarantee that the cutting piece of cutting dish has higher hardness, better wear resistance, and difficult wearing and tearing become blunt, the cutting efficiency is high, and the life-span is longer. The cutting unit, the shaver head and the electric shaver using the blade have high cutting efficiency and long service life.

Description

Blade, cutting unit, shaver head and electric shaver

Technical Field

The application belongs to the technical field of electric shavers, and more particularly relates to a blade, a cutting unit, a shaving head and an electric shaver.

Background

The electric shaver is convenient to carry and use, and is favored by users. Electric shavers typically drive blades in a foil to rotate so that the blades engage the inner surface of the shaving track to cut hair. The blades of the current electric shaver are generally stainless steel blades, however, the hardness and the wear resistance of the blades are poor, and when the blades are used, the abrasion is large, the blades are easy to become dull, and the cutting efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of this application is to provide a blade, cutting unit, razor head and electric shaver to the blade hardness that exists is relatively poor with the wearability among the solution prior art, and when the blade used, wearing and tearing were great, easily become blunt, and lead to the problem of cutting inefficiency.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions: providing a blade, which comprises a fixed seat and a cutting disc made of liquid metal or titanium alloy; the cutting disc comprises a cutter disc and cutting blades, the cutting blades are arranged on the cutter disc, the cutter disc is installed on the fixed seat, one end, far away from the cutter disc, of each cutting blade is provided with a cutting surface, and one side edge of each cutting surface is provided with a cutting edge.

In an alternative embodiment, the cutting disc is integrally injection molded from a liquid metal or titanium alloy.

In an optional embodiment, an orthographic projection of the cutting edge on the cutter head is a straight line segment; or the cutting edge is in a convex arc shape with the middle part protruding outwards along the circumferential direction of the cutter head; or the cutting edge is in a concave arc shape with the middle part inwards sunken along the circumferential direction of the cutter head; or the blade is V-shaped; alternatively, the cutting edge is serrated.

In an alternative embodiment, the width of the cutting edge along the radial direction of the cutter head ranges from 0.7mm to 2 mm.

In an alternative embodiment, the width of the cutting edge along the radial direction of the cutter head ranges from 0.8mm to 1.4 mm.

In an alternative embodiment, the cutting surface is an arc-shaped surface with a middle part protruding away from the cutter disc.

In an alternative embodiment, the central portion of the cutting face protrudes to a height in the range of 0.02-0.2mm relative to the side edges of the cutting face.

In an alternative embodiment, the central portion of the cutting face protrudes to a height in the range of 0.05 ± 0.02mm relative to the side edges of the cutting face.

In an alternative embodiment, the cutting blade has a side surface that intersects the cutting face to form the cutting edge; the included angle range of the cutting surface and the side surface along the circumferential direction of the cutter disc is 45-70 degrees.

In an alternative embodiment, the thickness of the cutter head ranges from 0.3mm to 1 mm.

In an alternative embodiment, the thickness of the cutter head ranges from 0.5 mm to 0.8 mm.

It is another object of an embodiment of the present application to provide a cutting unit, which includes a blade mesh and the blade of any one of the above embodiments, wherein the blade mesh is disposed on the blade.

It is another object of an embodiment of the present application to provide a shaving head, comprising a housing, and further comprising a cutting unit according to the above-mentioned embodiment, said cutting unit being mounted on said housing.

It is a further object of an embodiment of the present invention to provide an electric shaver comprising a handle and a shaving head as in the previous embodiments, the housing of the shaving head being mounted on the handle.

The blade, the cutting unit, razor head and electric shaver that this application embodiment provided's beneficial effect lies in: compared with the prior art, the cutting blade of this application, through the cutting dish that uses liquid metal or titanium alloy preparation, can guarantee that the cutting piece of cutting dish has higher hardness, better wear resistance, difficult wearing and tearing become blunt, and cutting efficiency is high, and the life-span is longer. The cutting unit, the shaver head and the electric shaver using the blade have high cutting efficiency and long service life.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or exemplary technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of an electric shaver according to an embodiment of the present application;

fig. 2 is an exploded view of a cutting unit according to an embodiment of the present disclosure;

FIG. 3 is a schematic top view of a blade according to an embodiment of the present disclosure;

FIG. 4 is an enlarged schematic view of portion A of FIG. 3;

fig. 5 is a schematic perspective view of a cutting disc according to an embodiment of the present application;

FIG. 6 is an enlarged schematic view of portion B of FIG. 5;

FIG. 7 is a schematic top view of a cutting disk according to an embodiment of the present disclosure;

FIG. 8 is a schematic cross-sectional view taken along line C-C of FIG. 7;

FIG. 9 is an enlarged view of portion D of FIG. 8;

FIG. 10 is a perspective view of a cutting blade according to yet another embodiment of the present application;

FIG. 11 is a schematic top view of a cutting blade according to yet another embodiment of the present application;

FIG. 12 is a schematic top view of a cutting blade according to yet another embodiment of the present application;

FIG. 13 is a schematic top view of a cutting blade according to yet another embodiment of the present application;

fig. 14 is a schematic top view of a cutting blade according to yet another embodiment of the present application.

Wherein, in the drawings, the reference numerals are mainly as follows:

100-an electric shaver;

10-a shaving head; 11-a housing;

20-a cutting unit; 21-knife net;

22-a blade; 23-a cutting disk; 231-a cutter head; 232-a cutting blade; 2321-cutting surface; 2322-knife edge; 2323-side surface; 24-a fixed seat;

30-handle.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present application, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Reference throughout this specification to "one embodiment," "some embodiments," or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Referring to fig. 1, an electric shaver 100 according to an embodiment of the present invention includes a handle 30 and a shaver head 10, wherein the shaver head 10 is mounted on the handle 30, and the shaver head 10 is supported by the handle 30.

Referring to fig. 1, a shaving head 10 includes a housing 11 and a cutting unit 20. The cutting unit 20 is mounted on the housing 11, and particularly may be mounted on the top of the housing 11, for cutting hair.

Referring to fig. 2, the cutting unit 20 includes a blade net 21 and a blade 22, and the blade net 21 covers the blade 22 to cut hair by the blade 22 cooperating with the blade net 21. In use, the blade 22 is mounted in the blade net 21, and the blade 22 rotates in the blade net 21, so that the blade 22 and the blade net 21 cooperate to cut hair. The blade net 21 is installed on the top of the cabinet 11 to support and position the blade net 21 through the cabinet 11.

Referring to fig. 2, 3 and 5, the blade 22 provided herein will now be described. The blade 22 comprises a fixed seat 24 and a cutting disc 23, the cutting disc 23 is mounted on the fixed seat 24, the cutting disc 23 is supported by the fixed seat 24, and when the blade is used, the fixed seat 24 can be connected with a driving mechanism of the electric shaver 100 to drive the fixed seat 24 to rotate, so that the cutting disc 23 is driven to rotate. The cutting disk 23 includes a cutter disk 231 and cutting blades 232, and the cutting blades 232 are provided on the cutter disk 231 to support the cutting blades 232 by the cutter disk 231. One end of the cutting blade 232 has a cutting face 2321, the cutting face 2321 is located on the end face of the end of the cutting blade 232 away from the cutter head 231, and one side of the cutting face 2321 has a cutting edge 2322 for cutting. The cutting disc 23 is made of liquid metal or titanium alloy to ensure the hardness and wear resistance of the cutting disc 23, further ensure the cutting blade 232 to have higher hardness and good wear resistance, and ensure that the cutting edge 2322 on the cutting blade 232 is not easy to passivate and rust, so as to prolong the service life and improve the shaving efficiency.

Compared with the prior art, the utility model, the blade 22 that this application provided, through the cutting dish 23 that uses liquid metal or titanium alloy preparation, can guarantee that the cutting piece 232 of cutting dish 23 has higher hardness, better wear resistance, and difficult wearing and tearing become blunt, cutting efficiency is high, and the life-span is longer for the blade 22 of this application. The cutting unit 20, the shaver head 10 and the electric shaver 100 using the blade 22 have high cutting efficiency and long life.

In one embodiment, the cutting disc 23 is integrally injection molded by liquid metal or titanium alloy, so that the cutting disc is convenient to process and manufacture, low in cost and convenient to mold complex shapes.

In one embodiment, the holder 24 may be made of plastic, which is low cost and light weight.

In one embodiment, the fixing seat 24 and the cutting disc 23 may be formed by two-step injection molding, for example, when the fixing seat 24 is injection molded, the cutting disc 23 may be placed in a mold for forming the fixing seat 24, and when the fixing seat 24 is injection molded, the fixing seat 24 and the cutting disc 23 are formed integrally to ensure the firm connection between the cutting disc 23 and the fixing seat 24. Of course, the fixing seat 24 and the cutting disk 23 may be bonded together, or the fixing seat 24 and the cutting disk 23 may be riveted together.

In one embodiment, referring to fig. 3, the width of the cutting edge 2322 along the radial direction of the cutter head 231 is in a range of 0.7-2mm to ensure a good width of the cutting edge 2322, thereby ensuring the hardness and wear resistance of the cutting blade 232 to ensure the cutting efficiency. When the width of the cutting edge 2322 in the radial direction of the cutter disc 231 is less than 0.7mm, the cutting edge 2322 is too narrow, cutting efficiency is low, and strength is low. When the width of the cutting edge 2322 in the radial direction of the cutter disc 231 is greater than 2mm, the cutting edge 2322 is too wide, and a large driving force is required during cutting, which adversely affects cutting efficiency and increases the volume of the cutting disc 23.

In the above embodiment, the width of the cutting edge 2322 along the radial direction of the cutter disc 231 is in the range of 0.8-1.4mm, and on the basis of ensuring the width of the cutting edge 2322 and the cutting efficiency, the cutting edge 2322 can be made smaller, so that the cutting disc 23 can be made smaller and the wear resistance and hardness of the cutting blade 232 can be ensured.

In one embodiment, the cutting blade 232 is plural to improve cutting efficiency.

In this embodiment, the plurality of cutting blades 232 are disposed in two circles on the cutter head 231. The width d1 of the outer ring cutting blades 232a in the radial direction of the cutter head 231 is in the range of 0.7-2 mm. Preferably, the width d1 of the outer ring cutting blades 232a in the radial direction of the cutter head 231 is in the range of 0.8 to 1.4 mm. The width d2 of the inner ring cutting blades 232b in the radial direction of the cutter head 231 is in the range of 0.7-2 mm. Preferably, the width d2 of the inner ring cutting blades 232b in the radial direction of the cutter head 231 is in the range of 0.8-1.4 mm. The width d1 of the outer ring cutting blade 232a in the radial direction of the cutter disc 231 may be the same as the width d2 of the inner ring cutting blade 232b in the radial direction of the cutter disc 231, or the width d1 of the outer ring cutting blade 232a in the radial direction of the cutter disc 231 may be different from the width d2 of the inner ring cutting blade 232b in the radial direction of the cutter disc 231, which is not limited herein.

In still other embodiments, the plurality of cutting blades 232 may be arranged in a circle on the cutter head 231. Of course, the cutter head 231 may be provided with a plurality of cutting blades 232 in three, four, or the like. The widths of the cutting blades 232 in the two adjacent circles along the radial direction of the cutter head 231 can be set to be the same or different.

In one embodiment, referring to fig. 3 and 4, the orthogonal projection of the cutting edge 2322 on the cutter head 231 is a straight line segment to facilitate the design and manufacture of the cutting edge 2322.

In one embodiment, referring to fig. 5 and 6, the cutting blade 232 has a side surface 2323, the side surface 2323 intersects the cutting surface 2321 to form a cutting edge 2322, and an included angle a between the cutting surface 2321 and the side surface 2323 along the circumferential direction of the cutter head 231 ranges from 45 degrees to 70 degrees, so that the sharpness and structural strength of the cutting edge 2322 can be ensured to improve the cutting efficiency. When the included angle a between the cutting surface 2321 and the side surface 2323 is less than 45 degrees, the structural strength of the blade 2322 is low, and the blade is prone to wear and fracture. When the included angle a between the cutting surface 2321 and the side surface 2323 is greater than 70 degrees, the cutting edge 2322 is not sharp enough, and the cutting efficiency is low.

In one embodiment, referring to fig. 7 and 8, the thickness w of the cutter head 231 is in the range of 0.3-1mm to ensure good strength and low weight of the cutter head 231 and to reduce costs. When the thickness w of the cutter head 231 is less than 0.3mm, the cutter head 231 has low strength and is easy to deform, and the cutting efficiency is low when the cutting blade 232 is driven to cut. When the thickness w of the cutter head 231 is greater than 1mm, the cutter head 231 is heavy and costly.

In the above embodiment, the thickness w of the cutter head 231 ranges from 0.5 mm to 0.8mm, which can better ensure the balance between the structural strength and the cost of the cutter head 231.

In one embodiment, referring to fig. 8 and 9, the cutting surface 2321 is an arcuate surface with a central portion that projects away from the cutter head 231. The center of the cutting surface 2321 refers to the center of the cutting surface 2321 in the radial direction of the cutter head 231. The cutting face 2321 is set to be an arc-shaped face with a convex middle part, so that good cutting efficiency can be ensured.

In one embodiment, the protruding height h of the middle portion of the cutting face 2321 is in the range of 0.02-0.2mm relative to the side edge of the cutting face 2321, so that the cutting face 2321 is provided with an arc-shaped face with a slightly protruding middle portion for easy processing and ensuring good cutting efficiency.

In the above embodiment, the protruding height h of the middle portion of the cutting face 2321 relative to the side of the cutting face 2321 is within the range of 0.05 ± 0.02mm, which not only facilitates the manufacturing, but also ensures the good cutting efficiency of the cutting blade 232.

In one embodiment, referring to fig. 10, the cutting surface 2321 is planar for ease of design and fabrication.

In one embodiment, referring to fig. 11, the cutting edge 2322 is in the shape of a convex arc with a middle portion protruding outward in the circumferential direction of the cutter head 231, so that the cutting edge 2322 can be ensured to have good cutting efficiency.

In one embodiment, referring to fig. 12, the cutting edge 2322 is in a concave arc shape with a central portion being recessed inwards along the circumferential direction of the cutter head 231, so that hairs can be guided to move towards the central portion of the cutting edge 2322 during cutting, thereby cutting hairs better and improving cutting efficiency.

In one embodiment, referring to fig. 13, the cutting edge 2322 is V-shaped and can also guide the hairs to move toward the middle of the cutting edge 2322, so as to better cut the hairs and improve the cutting efficiency.

In one embodiment, referring to fig. 14, the cutting edge 2322 is serrated, and can also guide the hairs into several bundles, so as to cut the hairs through different regions of the cutting edge 2322, thereby cutting the hairs better and improving the cutting efficiency. Of course, the cutting edge 2322 may be provided in other shapes, such as a wave shape.

The cutting blade 232 of the cutting blade 22 in the embodiment of the application has the advantages of high hardness, good wear resistance, difficult abrasion and passivation during use, long-term and good cutting efficiency and long service life.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (14)

1. A blade, characterized by: comprises a fixed seat and a cutting disc made of liquid metal or titanium alloy; the cutting disc comprises a cutter disc and cutting blades, the cutting blades are arranged on the cutter disc, the cutter disc is installed on the fixed seat, one end, far away from the cutter disc, of each cutting blade is provided with a cutting surface, and one side edge of each cutting surface is provided with a cutting edge.

2. The blade of claim 1, wherein: the cutting disc is integrally formed by injection molding of liquid metal or titanium alloy.

3. The blade of claim 1, wherein: the orthographic projection of the cutting edge on the cutter head is a straight line segment; or the cutting edge is in a convex arc shape with the middle part protruding outwards along the circumferential direction of the cutter head; or the cutting edge is in a concave arc shape with the middle part inwards sunken along the circumferential direction of the cutter head; or the blade is V-shaped; alternatively, the cutting edge is serrated.

4. The blade of claim 1, wherein: the width range of the cutting edge along the radial direction of the cutter head is 0.7-2 mm.

5. The blade of claim 4, wherein: the width range of the cutting edge along the radial direction of the cutter head is 0.8-1.4 mm.

6. The blade of any of claims 1-5, wherein: the cutting surface is an arc-shaped surface with the middle part protruding towards the direction far away from the cutter head.

7. The blade of claim 6, wherein: the height range of the middle part of the cutting surface protruding relative to the side edge of the cutting surface is 0.02-0.2 mm.

8. The blade of claim 7, wherein: the height range of the middle part of the cutting surface protruding relative to the side edge of the cutting surface is 0.05 +/-0.02 mm.

9. The blade of any of claims 1-5, wherein: the cutting blade having a side surface intersecting the cutting face to form the cutting edge; the included angle range of the cutting surface and the side surface along the circumferential direction of the cutter disc is 45-70 degrees.

10. The blade of any of claims 1-5, wherein: the thickness range of the cutter head is 0.3-1 mm.

11. The blade of claim 10, wherein: the thickness range of the cutter head is 0.5-0.8 mm.

12. A cutting unit comprising a foil, characterized in that: further comprising a blade according to any of claims 1-11, said knife screen being mounted on said blade.

13. A shaving head, comprising a housing, characterized in that: comprising a cutting unit as claimed in claim 12, which is mounted on the housing.

14. An electric shaver, comprising a handle, characterized in that: a razor head according to claim 13, the housing of the razor head being mounted on the handle.

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