Double-ring shaving head assembly of rotary electric shaver and rotary shaver

Abstract

A double-ring shaving head assembly of a rotary electric shaver comprises a shaver net and a rotary blade, the rotary blade comprises a cutter head and a blade foot arranged on the cutter head, and when the inner end of a cutting edge of the blade foot makes contact with a cutting edge of a front net tooth of the shaver net, the outer end of the cutting edge of the blade foot is covered by projection of a rear net tooth. The rear net tooth covers the outer end of the cutting edge of the blade foot, it is guaranteed that the rotating blade cannot collide with the blade in the rotating and moving process, the shaving effect is guaranteed, noise is low, and shaving is more comfortable.

Description

Technical Field

[0001] The utility model belongs to the technical field of shavers, and in particular relates to a double-ring shaving head assembly of a rotary electric shaver and the rotary shaver. Background Art

[0002] The structure of a razor usually includes a body, a head and a cutter head assembly. The cutter head assembly includes a cutter net, a moving blade, etc. The moving blade cooperates with the cutter net to cut the razor during rotation. Due to manufacturing errors, the blade of the moving blade may fall into the beard inlet groove of the cutter net during use, that is, there is interference between the blade and the mesh teeth of the cutter net, causing jamming and affecting the shaving effect; it may also produce abnormal noise during use, causing noise trouble to the user. Summary of the invention

[0003] In view of the problems existing in the above background technology, the purpose of the utility model is to provide a double-ring shaving head assembly of a rotary electric shaver and a rotary shaver, which can prevent the cutting edge of the blade from hitting the knife and producing abnormal noise, ensure the shaving effect, and make shaving more comfortable.

[0004] The technical solution adopted by the utility model is:

[0005] A double-ring shaving head assembly of a rotary electric shaver includes a blade net and a rotary blade. The rotary blade includes a blade disc and a blade foot arranged on the blade disc. When the inner end of the blade edge of the blade foot contacts the blade edge of the previous mesh tooth of the blade net, the outer end of the blade edge of the blade foot is covered by the projection of the next mesh tooth. The utility model ensures that the rotary blade will not collide with the blade during the rotation and movement by covering the outer end of the blade edge of the blade foot with the next mesh tooth, thereby ensuring the shaving effect and reducing the noise, so that the shaving is more comfortable.

[0006] Furthermore, the projected area of ​​the cutting edge of a single blade foot accounts for more than 30% of the total area of ​​the cutting edge of the single blade foot, ensuring that during the rotation of the rotary blade, the cutting edge of the blade foot has a certain contact area with the teeth of the blade mesh, thereby ensuring low noise.

[0007] Furthermore, the blade net is provided with an inner ring and an outer ring, and the mesh surfaces of the inner ring and the outer ring are both arc-shaped structures. The utility model adopts an arc-shaped structure, and the double arches move more smoothly and the shaving is more comfortable.

[0008] Furthermore, the mesh surfaces of the inner ring and the outer ring are both thin in the middle and thick on both sides, so that the strength of the mesh surface is effectively ensured, the thick positions on both sides achieve fast rough shaving, and the thin position in the middle ensures a clean shaving.

[0009] Furthermore, the cutter disc is provided with cutter feet evenly distributed in an annular shape corresponding to the inner ring and the outer ring.

[0010] Further, the whisker inlet grooves on the cutter net are a combination structure of one or two of a straight groove, a C-shaped groove, and an S-shaped groove.

[0011] Further, the rotary blade is a tearing and forming structure, which is simple, low-cost, and has good whisker leakage performance.

[0012] Further, the cutter head ring of the rotary blade is installed on the driving connecting piece.

[0013] Further, a central hole is provided on the driving connecting piece, and a positioning boss for inserting into the central hole and restricting the lateral movement of the cutter net relative to the rotary blade is provided on the cutter net.

[0014] The present utility model also discloses a rotary shaver, which includes the double-ring shaving head assembly of the rotary electric shaver described in any one of the above technical solutions.

[0015] Compared with the prior art, the remarkable advantages of the present utility model include: it can prevent the blade edge from hitting the knife and generating abnormal sounds, ensure the shaving effect, and make shaving more comfortable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an exploded structural schematic diagram of the present utility model.

[0017] Figure 2 is a top view structural schematic diagram of the present utility model.

[0018] Figure 3 is Figure 2 an enlarged structural schematic diagram of part A in

[0019] Figure 4 is a cross-sectional structural schematic diagram of the cutter net of the present utility model.

[0020] Figure 5 is a structural schematic diagram after the rotary blade is connected to the driving connecting piece of the present utility model.

[0021] Figure 6 is Figure 5 a top view structural schematic diagram of

[0022] In the figure: 1 - cutter net; 2 - rotary blade; 3 - driving connecting piece; 4 - outer end of the blade edge; 5 - inner end of the blade edge; 6 - net teeth; 7 - net tooth blade edge; 8 - arc-shaped arched structure; 9 - cutter foot; 10 - blade edge surface; 11 - positioning boss; 12 - whisker inlet groove; 13 - cutter head; 14 - inner ring; 15 - outer ring; 16 - central hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present utility model will be further described below in conjunction with specific embodiments, but the present utility model is not limited to these specific embodiments. Those skilled in the art should recognize that the present utility model covers all alternative solutions, improvement solutions, and equivalent solutions that may be included within the scope of the claims.

[0024] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

[0025] In the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0027] Embodiment 1

[0028] Refer to Figures 1-6The present embodiment provides a double-ring shaving head assembly of a rotary electric shaver, comprising a blade net 1 and a rotary blade 2. The rotary blade 2 comprises a blade disc 13 and a blade foot 9 arranged on the blade disc 13. When the inner end 5 of the cutting edge of the blade foot 9 contacts the previous mesh tooth cutting edge 7 of the blade net 1, the outer end 4 of the cutting edge of the blade foot 9 is covered by the projection of the next mesh tooth 6. The utility model ensures that the rotary blade 2 will not collide with the blade during the rotation and movement by covering the outer end 4 of the cutting edge of the blade foot 9 with the next mesh tooth 6, thereby ensuring the shaving effect and reducing the noise, so that the shaving is more comfortable.

[0029] In this embodiment, the projected area of ​​the cutting edge surface 10 of a single blade foot 9 accounts for more than 30% of the total area of ​​the single blade foot cutting edge surface, ensuring that during the rotation of the rotary blade 2, there is a certain contact area between the blade foot cutting edge and the blade mesh teeth, thereby ensuring low noise.

[0030] The blade net 1 of this embodiment has an inner ring 14 and an outer ring 15, and the mesh surfaces of the inner ring 14 and the outer ring 15 are both arc-shaped arch structures 8. The utility model adopts the arc-shaped arch structure 8, and the double arches move more smoothly and shave more comfortably. The mesh surfaces of the inner ring 14 and the outer ring 15 are both thin in the middle and thick on both sides. While effectively ensuring the strength of the mesh surface, the thick positions on both sides achieve fast rough shaving, and the thin position in the middle ensures a clean shaving.

[0031] In this embodiment, the blade disc 13 is provided with knife feet 9 evenly distributed in an annular shape corresponding to the inner ring 14 and the outer ring 15. The rotating blade 2 is a tearing forming structure, that is, the knife feet 9 corresponding to the inner ring 14 are formed to form a groove on the blade disc 13, which is simple, low-cost and has good leakage. The blade disc 13 of the rotating blade 2 is annularly embedded in the driving connecting member 3. The driving connecting member 3 is provided with a center hole 16, and the knife net 1 is provided with a positioning boss 11 for inserting into the center hole 16 and limiting the lateral movement of the knife net 1 relative to the rotating blade 2.

[0032] The whisker inlet groove 12 on the knife net 1 of the present embodiment is a combination of one or two groove shapes of a straight groove, a C-shaped groove, and an S-shaped groove. For example, the whisker inlet groove 12 on the inner ring 14 and the outer ring 15 are both straight grooves, or the whisker inlet groove 12 of the inner ring 14 is set as a C-shaped groove, and the whisker inlet groove on the outer ring 15 is set as a straight groove, etc. When a special-shaped groove is used, the coverage area will be larger.

[0033] The utility model can prevent the blade edge from hitting the knife to produce abnormal noise, thereby ensuring the shaving effect and making the shaving more comfortable.

[0034] Embodiment 2

[0035] The utility model further provides a rotary shaver, comprising the double-ring shaving head assembly of the rotary electric shaver described in the first embodiment, wherein the driving connector 3 is connected to the rotating mechanism of the shaver.

[0036] For other structures and functions, reference can be made to those described in Embodiment 1.

Claims

1. A double-ring shaving head assembly of a rotary electric shaver, comprising a blade net (1) and a rotary blade (2), wherein the rotary blade (2) comprises a blade disc (13) and a blade foot (9) arranged on the blade disc (13), characterized in that: When the inner end (5) of the cutting edge of the knife foot (9) contacts the cutting edge (7) of the previous mesh tooth of the knife net (1), the outer end (4) of the cutting edge of the knife foot (9) is covered by the projection of the next mesh tooth (6).

2. A double-ring shaving head assembly for a rotary electric shaver according to claim 1, characterized in that: The projected area of ​​the cutting edge surface (10) of a single blade foot (9) accounts for more than 30% of the total area of ​​the cutting edge surface of the single blade foot.

3. A double-ring shaving head assembly for a rotary electric shaver according to claim 1, characterized in that: The knife net (1) is provided with an inner ring (14) and an outer ring (15), and the net surfaces of the inner ring (14) and the outer ring (15) are both arc-shaped arch structures (8).

4. A double-ring shaving head assembly for a rotary electric shaver according to claim 3, characterized in that: The mesh surfaces of the inner ring (14) and the outer ring (15) are both thin in the middle and thick on both sides.

5. A double-ring shaving head assembly for a rotary electric shaver according to claim 3, characterized in that: The cutter disc (13) is provided with cutter feet (9) evenly distributed in an annular shape, corresponding to the inner ring (14) and the outer ring (15).

6. A double-ring shaving head assembly for a rotary electric shaver according to claim 1, characterized in that: The whisker inlet groove (12) on the knife net (1) is a combination structure of one or two groove shapes including a straight groove, a C-shaped groove and an S-shaped groove.

7. A double-ring shaving head assembly for a rotary electric shaver according to claim 1, characterized in that: The rotating blade (2) is a tearing and forming structure.

8. A double-ring shaving head assembly for a rotary electric shaver according to claim 1, characterized in that: The blade disc (13) of the rotating blade (2) is annularly embedded on the driving connecting member (3).

9. A double-ring shaving head assembly for a rotary electric shaver according to claim 8, characterized in that: The driving connecting member (3) is provided with a center hole (16), and the knife net (1) is provided with a positioning boss (11) for inserting into the center hole (16) and limiting the lateral movement of the knife net (1) relative to the rotating blade (2).

10. A rotary shaver, characterized in that: A double-ring shaving head assembly for a rotary electric shaver comprising the double-ring shaving head assembly of any one of claims 1 to 9.

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