Circular knife structure and shaver

Abstract

The utility model discloses a circular knife structure and a shaver, the circular knife structure comprises a circular main body and a plurality of transverse knives arranged on the circular main body, the transverse knives protrude out of the surface of the circular main body, and the knife edges of the transverse knives approximately extend along the radial direction; wherein the circular main body is provided with a plurality of convex ribs extending in the radial direction, and the convex ribs are arranged between every two adjacent transverse cutters. According to the technical scheme, the convex ribs extending in the radial direction are arranged between the transverse cutters on the circular body, when the transverse cutters rotationally shear beards, stress concentration points are reduced and stress is dispersed through the reinforcing structure of the convex ribs, and therefore the balance degree in the rotating process is improved, rotating force needing to be provided by a motor rotating shaft is more uniform, and current supply is more stable.

Description

Technical Field

[0001] This utility model belongs to the field of razor technology, and particularly relates to a circular blade structure and a razor. Background Technology

[0002] An electric shaver consists of a stainless steel mesh cover, inner blades, a miniature motor, and a housing. The mesh cover, which is the fixed outer blade, has many holes through which beard hairs can be inserted. The miniature motor is powered by electricity, which rotates the inner blades and uses a shearing principle to cut the beard hairs inserted into the holes.

[0003] Most rotary shavers currently use circular blades with several circumferentially distributed horizontal blades. When the beard enters the mesh and is cut by at least part of the horizontal blades, the force on the blades is uneven in the tangential direction because each blade cuts a different number of hairs. This causes the stress points inside the circular blade to become too concentrated, reducing the frictional balance of the entire circular blade, resulting in uneven sharpness, unstable rotation, and increased current supply. Utility Model Content

[0004] The main purpose of this utility model is to propose a circular blade structure and razor, which aims to solve the technical problems of reduced balance and unstable rotation of the circular blade during shaving.

[0005] To achieve the above objectives, this utility model proposes a circular knife structure, which includes:

[0006] Circular main body;

[0007] Multiple horizontal blades are provided on the circular body, the horizontal blades protrude from the surface of the circular body, and their blades extend approximately radially;

[0008] The circular body has several radially extending ribs, which are arranged between two adjacent cross blades.

[0009] Optionally, each of the cross blades is evenly distributed circumferentially.

[0010] Optionally, each of the cross blades is arranged in a three-ring ring.

[0011] Optionally, the number of horizontal cutters in the inner circle is n, the number of horizontal cutters in the middle circle is 2n, and the number of horizontal cutters in the outer circle is 3n, where n is a positive integer.

[0012] Optionally, the number of horizontal cutters in the inner ring is 3, the number of horizontal cutters in the middle ring is 6, and the number of horizontal cutters in the outer ring is 9.

[0013] Optionally, the number of ribs is 6, and the included angle between two adjacent ribs is 60°.

[0014] Optionally, the six ribs include three long ribs and three short ribs, with the long ribs and the short ribs arranged adjacent to each other.

[0015] Optionally, the long rib extends between the crossbeams of the inner, middle, and outer rings, and the short rib extends between the crossbeams of the middle ring.

[0016] Optionally, a support rib is provided at the connection between each cross blade and the circular body.

[0017] This utility model also proposes a razor, which includes the above-mentioned circular blade structure.

[0018] In the technical solution of this utility model, radially extending ribs are provided between the horizontal blades on the circular body. When the horizontal blades rotate to cut the beard, the stress concentration points are reduced and the force is distributed through this reinforcing structure of ribs, thereby improving the balance during rotation, making the rotational force required by the motor shaft more uniform and the current supply more stable. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A three-dimensional structural diagram of an embodiment of the circular knife structure provided by this utility model;

[0021] Figure 2 for Figure 1 A first-person perspective view;

[0022] Figure 3 A perspective structural diagram of an embodiment of the blade provided by this utility model;

[0023] Figure 4 for Figure 3 A three-dimensional structural diagram from another perspective.

[0024] Labeling explanation: Circular blade structure-100, Circular body-1, Mounting hole-1a, Horizontal blade-2, Raised rib-3, Long raised rib-31, Short raised rib-32, Support rib-4, Blade head-200, Mesh cover-201, Bushing-202.

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] To better describe and illustrate the embodiments of this application, reference may be made to one or more accompanying drawings, but the additional details or examples used to describe the drawings should not be considered as limiting the scope of any of the utility model creation, the embodiments or preferred embodiments of this application, or the preferred methods described herein.

[0028] In the description of this utility model, it should be noted that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate that the device referred to must have a specific orientation or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0030] In current rotary shavers, the built-in circular blades cause uneven stress in the tangential direction when the beard enters the holes of the mesh and is cut by at least part of the horizontal blades. This is because the number of beard hairs cut by each horizontal blade is different, resulting in excessive concentration of stress points inside the circular blade. Consequently, the frictional balance of the entire circular blade is reduced, the sharpness is uneven, the rotation is unstable, and the current supply becomes higher.

[0031] In view of this, the present invention provides a circular knife structure. Figure 1-2 For an embodiment of the circular blade structure of the hair dryer provided by this utility model, please refer to [link / reference]. Figure 1-2 The circular blade structure 100 includes a circular body 1 and a plurality of horizontal blades 2 disposed on the circular body 1.

[0032] The circular body 1 is machined from a metal sheet using a milling cutter, with a mounting hole 1a cut at its center for connection to the bushing of the motor shaft of the shaver. In this embodiment, the cross blades 2 and the circular body 1 are an integral structure, machined from the circular body 1. The shape of the cross blades 2 is precisely cut by a milling cutter, and they are ejected and protrude from the surface of the circular body 1. The included angles of the cross blades 2 relative to the surface of the circular body 1 are almost the same. The cross blades 2 are distributed circumferentially, and the orientation of the cross blades 2 (the direction of extension from the surface of the circular body 1) is approximately the same as the tangential direction of the counterclockwise rotation of the entire circular blade structure 100.

[0033] Furthermore, to enhance sharpness during shaving, the blade 2 extends approximately radially, providing the greatest shearing force when the circular blade structure 100 rotates. Of course, in other embodiments, the blade may be offset radially or slightly curved to better receive and cut the beard hairs.

[0034] When the blade of the rotating cross blade 2 contacts and cuts the beard, it will cause the cross blade 2 to be subjected to a force in the opposite direction to itself. If these forces are not evenly distributed to each cross blade 2, the maximum stress value in a local area of ​​the entire circular blade structure 100 will be higher than the average stress value, that is, stress concentration.

[0035] Please see Figure 1 and Figure 2 In this embodiment, several radially extending ribs 3 are machined between two adjacent horizontal blades 2 on the circular body 1 to improve the fatigue resistance of the circular blades. When the horizontal blades 2 rotate to cut the beard, the reinforcing structure of the ribs 3 reduces stress concentration points and distributes the force, thereby improving the balance during rotation. This makes the rotational force required by the motor shaft more uniform, the current supply more stable, and the shaving efficiency higher.

[0036] Specifically, please refer to Figure 1 The rib 3 protrudes relative to the surface of the circular body 1, which can reduce the deformation of the circular knife structure 100 caused by the radial force on the plane, making the stress distribution of the circular knife itself more uniform.

[0037] To achieve a more uniform mass distribution in the circular cutter structure 100, please refer to [link / reference needed]. Figure 2 In one embodiment of the utility model, each cross blade 2 and each rib 3 are evenly distributed along the circumference, and the rib 3 is approximately located in the middle of two adjacent cross blades 2.

[0038] To improve shaving efficiency, please refer to Figure 2In one embodiment of the utility model, each horizontal blade 2 is arranged in three rings, and the number of horizontal blades 2 in each ring increases from the inside to the outside. The number of horizontal blades 2 is arranged more densely with the contact area with the beard, which can better distribute the force and reduce the stress concentration point.

[0039] Preferably, in some embodiments of the utility model, the number of horizontal blades 2 in the inner circle is n, the number of horizontal blades 2 in the middle circle is 2n, and the number of horizontal blades 2 in the outer circle is 3n, where n is a positive integer. This design ensures that the horizontal blades 2 are not unevenly distributed. In this embodiment, the number of horizontal blades 2 in the inner circle is 3, the number of horizontal blades 2 in the middle circle is 6, and the number of horizontal blades 2 in the outer circle is 9. Of course, the implementation of this utility model is not limited to this; the number of horizontal blades 2 in the inner circle can also be 4, the number of horizontal blades 2 in the middle circle can also be 8, and the number of horizontal blades 2 in the outer circle can also be 12, which will not be listed here.

[0040] Furthermore, for better placement of the protruding rib 3 between two adjacent crossbeams 2, please refer to [reference needed]. Figure 2 In one embodiment of the utility model, the number of protruding ribs 3 is 6, and the included angle between two adjacent protruding ribs 3 is 60°. Each protruding rib 3 is disposed between every two crossbeams 2 of the central ring.

[0041] Furthermore, please refer to Figure 1 and Figure 2 In this embodiment, the six protruding ribs 3 include three long protruding ribs 31 and three short protruding ribs 32. The long protruding ribs 31 and the short protruding ribs 32 are arranged adjacent to each other, that is, the long protruding ribs 31 and the short protruding ribs 32 are arranged in a circumferential direction.

[0042] Each long rib 31 extends between adjacent crossbeams 2 in the inner ring, the middle ring, and the outer ring, respectively, while each short rib 32 extends between adjacent crossbeams 2 in the middle ring. This design provides a more balanced mass distribution and better stress dispersion.

[0043] To reduce the deformation of the blade 2 caused by the forces acting on it during shaving, please refer to... Figure 1 and Figure 2 In one embodiment of the utility model, each cross blade 2 and the circular body 1 is provided with a support rib 4 to improve the fatigue strength of the connection, reduce deformation and disperse stress.

[0044] This utility model also proposes a cutting head or cutting head assembly. Figure 3-4 For an embodiment of the hair dryer blade provided by this utility model, please refer to [link / reference]. Figure 3-4The cutter head 200 adopts the circular cutter structure 100 of this embodiment. Furthermore, the cutter head 200 also includes a mesh cover 201 and a bushing 202 connected to the central mounting hole 1a of the circular cutter structure 100. In embodiments of the cutter head assembly, at least one cutter head 200 and a mounting bracket for fixing the cutter head 200 are included.

[0045] In addition, this utility model also proposes a razor that adopts the circular blade structure 100 of this embodiment, especially the aforementioned blade head 200 or blade head assembly.

[0046] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The above embodiments merely illustrate several implementation methods of this application, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A circular knife structure, characterized in that, The circular body comprises: a plurality of horizontal knives arranged on the circular body, the horizontal knives protruding from the surface of the circular body and having knife edges extending substantially in the radial direction; wherein the circular body is provided with a plurality of radial ribs arranged between two adjacent horizontal knives. The horizontal knives are evenly distributed in the circumferential direction.

2. The circular knife construction of claim 1 wherein, The horizontal knives are arranged in three rings.

3. The circular knife construction of claim 2, wherein, The number of horizontal knives in the inner ring is n, the number of horizontal knives in the middle ring is 2n, and the number of horizontal knives in the outer ring is 3n, wherein n is a positive integer.

4. The circular knife construction of claim 3 wherein, The number of horizontal knives in the inner ring is 3, the number of horizontal knives in the middle ring is 6, and the number of horizontal knives in the outer ring is 9.

5. The circular knife structure of claim 4, wherein, The number of ribs is 6, and the included angle between two adjacent ribs is 60°.

6. The circular knife construction of claim 5 wherein, The 6 ribs include 3 long ribs and 3 short ribs, and the long ribs and the short ribs are arranged alternately.

7. The circular knife structure of claim 6, wherein, The long ribs extend between the horizontal knives of the inner ring, the middle ring, and the outer ring, and the short ribs extend between the horizontal knives of the middle ring.

8. The circular knife structure of claim 7, wherein, A support rib is arranged at the connection between each horizontal knife and the circular body.

9. The circular knife construction of claim 1 wherein, The razor comprises the circular knife structure according to any one of claims 1-9.

10. A shaver characterized by ​

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