Floating razor net structure of rotary razor and razor head of floating razor net structure

Abstract

The utility model discloses a floating knife net structure of a rotary shaver, which comprises a head cover part and a plurality of knife nets, the head cover part is used for being connected with a shaver body component, each knife net is provided with an inner cavity enclosed by side walls, a movable knife rotates in the inner cavity, a flexible glue support part is integrally formed on the plurality of knife nets in an injection molding manner, and the flexible glue support part is provided with a plurality of elastic parts. The soft rubber supporting part supports the plurality of knife nets on the head cover part, the soft rubber supporting part has elasticity so that the knife nets connected to the head cover part can float when being stressed, the inner cavity is exposed from the bottom of the head cover part and the bottom of the soft rubber supporting part, the structure is simple, the number of parts of the knife head can be reduced, and assembling procedures can be reduced. The utility model further correspondingly discloses a tool bit of the rotary shaver comprising the floating tool net structure, and the tool bit has the advantages of being simple in structure, few in parts and simple in assembly process.

Description

Technical Field

[0001] The utility model relates to a floating cutter net structure of a rotary shaver, and also relates to a cutter head of a rotary shaver.

Background Art

[0002] In the existing rotary shaver, the cutting cutter head usually floats the cutter net and connects it to the head cover to improve the fitting effect. For example, in the structure disclosed in the patent with the publication number CN114030012A and the name of a floating cutter net structure of a shaver and a shaver, the cutting cutter head with a floating function of the cutter net usually consists of a cutter net, a cutter net frame, a head cover, a spring piece and a positioning frame. Among them, the cutter net frame is installed on the head cover, the cutter net is installed in the cutter net frame, the spring piece is installed in cooperation with the head cover and floats to support the cutter net, and the positioning frame is connected to the head cover through a rotary buckle for limiting and fixing the spring piece. It has many parts and a complex assembly process.

[0003] The purpose of the utility model is to study a floating method different from the prior art and provide a new floating cutter net structure.

Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a floating cutter net structure of a rotary shaver, which has a simple structure and can reduce the number of parts of the cutter head and the assembly process.

[0005] The utility model is realized by the following technical solutions:

[0006] A floating cutter net structure of a rotary shaver includes a head cover part for connecting with the shaver body assembly and several cutter nets. An inner cavity surrounded by side walls is provided on the cutter net, and a moving cutter rotates inside the inner cavity. A soft rubber support part is integrally injection-molded on several cutter nets, and the soft rubber support part supports several cutter nets on the head cover part. The soft rubber support part has elasticity so that the cutter net connected to the head cover part can float when stressed, and the inner cavity is exposed from the bottom of the head cover part and the soft rubber support part.

[0007] For the floating cutter net structure of a rotary shaver as described above, a limiting part protruding into the inner cavity is provided on the soft rubber support part.

[0008] For the floating cutter net structure of a rotary shaver as described above, the cutter net is formed by powder metallurgy. A skin contact part extending outward from the side wall is provided on the cutter net, and the soft rubber support part is arranged below the skin contact part.

[0009] For the floating cutter net structure of a rotary shaver as described above, a limiting part protruding into the inner cavity is provided on the soft rubber support part. The cutter net is formed by powder metallurgy. A skin contact part extending outward from the side wall is provided on the cutter net, and the soft rubber support part is arranged below the skin contact part.

[0010] A floating cutter net structure of a rotary shaver as described above, wherein a plurality of wrapping rings are provided on the soft rubber support part, and a plurality of cutter nets are fixed in the plurality of wrapping rings, and each wrapping ring wraps the side wall of the corresponding cutter net.

[0011] A floating cutter net structure of a rotary shaver as described above, wherein there are more than two cutter nets, and an intermediate support structure is provided in the middle of the soft rubber support part, and the intermediate support structure is arranged between different cutter nets.

[0012] A floating cutter net structure of a rotary shaver as described above, wherein fixing holes and fixing beams are provided on the cutter net, and when the soft rubber support part is injection-molded, it passes through the fixing holes and wraps the fixing beams inside.

[0013] A floating cutter net structure of a rotary shaver as described above, wherein both the head cover part and the soft rubber support part are made of soft rubber and are integrally formed, a magnetic attraction part is fixed inside the head cover part, and the magnetic attraction part is fixed inside during the injection molding of the head cover part.

[0014] A floating cutter net structure of a rotary shaver as described above, wherein the head cover part is a rigid structure, and a locking part for locking the soft rubber support part on the head cover part is connected to the head cover part.

[0015] Another technical problem to be solved by the present utility model is to provide a cutter head of a rotary shaver, which has the characteristics of simple structure, few components, and simple assembly process.

[0016] The present utility model is realized through the following technical solutions:

[0017] A cutter head of a rotary shaver, including a floating cutter net structure of a rotary shaver as described above, a moving cutter is provided in the inner cavity, a driving connecting piece exposed from the bottom of the head cover part and the soft rubber support part is connected to the moving cutter, a limiting part protruding into the inner cavity is provided on the soft rubber support part, the moving cutter is blocked from below by the limiting part and is limited in the inner cavity, the gap between the limiting part and the top of the cutter net is greater than the height of the moving cutter so that the moving cutter can move up and down in the inner cavity, a central positioning column protruding downward into the inner cavity is provided at the top of the cutter net, a central positioning hole matching with the central positioning column is provided on the driving connecting piece, and when the moving cutter moves up and down above the limiting part, the central positioning column and the central positioning hole are always connected together.

[0018] Compared with the prior art, the present utility model has the following advantages:

[0019] 1. The floating cutter net structure of the present utility model fixes the cutter net on the soft rubber support part through integrally injection molding the soft rubber support part and several cutter nets, supports several cutter nets on the head cover part through the soft rubber support part, and the soft rubber support part has elasticity so that the cutter net can float when stressed. Its structure is simple and there are few components.

[0020] 2. A limiting part protruding into the inner cavity is provided on the soft rubber support part of the present utility model for limiting the moving cutter in the inner cavity. When installing the moving cutter, since the limiting part belongs to the soft rubber support part and is soft and elastic, the limiting part can be squeezed open to install the moving cutter into the inner cavity. In the natural state, the limiting part blocks the moving cutter from below to prevent it from falling, and under the action of an external force, the limiting part can be squeezed open to remove the moving cutter. There is no need to additionally add other external components to limit the moving cutter in the inner cavity for the cutter head of the rotary shaver, which is beneficial to simplifying the cutter head structure and facilitating the disassembly and assembly of the moving cutter, and is convenient for removing the moving cutter to clean the inner cavity and the moving cutter.

[0021] 3. Fixing holes and fixing beams are provided on the cutter net of the present utility model. When the soft rubber support part is injection molded, it passes through the fixing holes and wraps the fixing beams inside, making the connection between the cutter net and the soft rubber support part stable and reliable.

[0022] 4. Both the head cover part and the soft rubber support part of the present utility model are made of soft rubber and are integrally formed. A magnetic part is integrally injection molded inside the head cover part. Its structure is simple and there are few components, which simplifies the assembly and production process of the cutter head. The magnetic part can be a permanent magnet or a component attracted by an external magnet. Only by setting a corresponding magnetic structure on the shaver body assembly, the cutter head can be attracted to the shaver body assembly by the magnetic part for use.

Description of the Drawings

[0023] The following further details the specific embodiments of the present utility model in conjunction with the drawings, where:

[0024] Figure 1 is an exploded view of an embodiment of the floating cutter net structure of a rotary shaver of the present utility model;

[0025] Figure 2 is a bottom view of an embodiment of the floating cutter net structure of a rotary shaver of the present utility model;

[0026] Figure 3 is along Figure 2 the cross-sectional view in the A-A direction in

[0027] Figure 4 is a perspective view of an embodiment of the floating cutter net structure of a rotary shaver of the present utility model;

[0028] Figure 5 is a structural schematic diagram of the cutter head of a rotary shaver of the present utility model;

[0029] Figure 6 is a cross-sectional view of the cutter head of a rotary shaver of the present utility model along the Figure 2 A-A direction in;

[0030] Figure 7 is a bottom view of the cutter net;

[0031] Figure 8 is a top view of the cutter net;

[0032] Figure 9 is along Figure 8 B-B direction in the cross-sectional view;

[0033] Figure 10 is another embodiment of the floating cutter net structure of a rotary shaver of the present utility model along Figure 2 A-A direction in;

[0034] Figure 11 is a third embodiment of the floating cutter net structure of a rotary shaver of the present utility model along Figure 2 A-A direction in the cross-sectional view.

Detailed implementation manners

[0035] The present utility model will be further described below in conjunction with the attached drawings:

[0036] As Figures 1 to 11 shown, a floating cutter net structure of a rotary shaver includes a head cover portion 11 for connecting with a shaver body assembly and a plurality of cutter nets 2. An inner cavity 22 surrounded by side walls 21 is provided on the cutter net 2. The inner cavity 22 allows a moving cutter 3 to rotate therein. A soft rubber support portion 12 is integrally injection molded on the plurality of cutter nets 2. The soft rubber support portion 12 supports the plurality of cutter nets 2 on the head cover portion 11. The soft rubber support portion 12 has elasticity so that the cutter net 2 connected to the head cover portion 11 can float when stressed. The inner cavity 22 is exposed from the bottom of the head cover portion 11 and the soft rubber support portion 12. Its structure is simple and there are few components.

[0037] Furthermore, a limiting portion 121 protruding into the inner cavity 22 is provided on the soft rubber support portion 12 for limiting the moving cutter within the inner cavity 22. When installing the moving cutter 3, since the limiting portion 121 belongs to the soft rubber support portion 12 and is soft and elastic, the limiting portion 121 can be squeezed open to install the moving cutter 3 into the inner cavity 22. In the natural state, the limiting portion 121 blocks the moving cutter 3 from below to prevent it from falling, and under an external force, the limiting portion 121 can be squeezed open to remove the moving cutter 3. The cutter head of the rotary shaver does not need to additionally add other external components to limit the moving cutter within the inner cavity 22, which is beneficial to simplifying the cutter head structure and facilitating the disassembly and assembly of the moving cutter 3, and convenient for removing the moving cutter 3 to clean the inner cavity 22 and the moving cutter.

[0038] Further, the soft rubber support portions 12 are spaced into multiple ones and arranged in a circumferential direction, which simplifies the mold structure and facilitates molding, and the gaps between two adjacent soft rubber support portions 12 are convenient for discharging lint.

[0039] Further, as Figure 3 and 7 shown, fixing holes 23 and fixing beams 24 are provided on the cutter net 2. When the soft rubber support portions 12 are injection-molded, they pass through the fixing holes 23 and wrap the fixing beams 24 inside, so that the connection between the cutter net 2 and the soft rubber support portions 12 is stable and reliable.

[0040] Further, a plurality of wrapping rings 123 are provided on the soft rubber support portions 12, and a plurality of cutter nets 2 are fixed in the plurality of wrapping rings 123, and each wrapping ring 123 wraps the side wall 21 of the corresponding cutter net 2.

[0041] Preferably, as Figures 1 - 9 shown in the embodiment, the cutter net 2 is formed by powder metallurgy. A skin contact portion 25 extending outward from the side wall 21 is provided on the cutter net 2. When shaving, the skin contact portion 25 contacts the skin to improve the shaving feel, and the soft rubber support portion 12 is arranged below the skin contact portion 25, so that the soft rubber support portion 12 can better support the cutter net 2 from below.

[0042] The cutter net 2 is formed by powder metallurgy, which is conducive to integrally forming the skin contact portion 25. The following is an embodiment of the powder metallurgy forming process, which includes the following steps: injecting a raw material with stainless steel powder through an injection molding machine to obtain a cutter net blank, and the cutter net blank includes a side wall, a net top, an inner cavity and a skin contact portion; putting the cutter net blank into a degreasing furnace for degreasing; putting the degreased cutter net blank into a sintering furnace for sintering; performing heat treatment hardening on the sintered cutter net blank; shaving off part of the material from the bottom of the net top to form a fixed cutter surface that cooperates with the moving cutter.

[0043] As Figures 1 - 10 shown in the embodiment, both the head cover portion 11 and the soft rubber support portions 12 are made of soft rubber and are integrally formed. A magnetic attracting member 4 is fixed inside the head cover portion 11. When the head cover portion 11 is injection-molded, the magnetic attracting member 4 is fixed inside. Its structure is simple and there are few components, which simplifies the assembly and production process of the cutter head. The magnetic attracting member 4 can be a permanent magnet or a member attracted by an external magnet. Only by setting a corresponding magnetic attracting structure on the razor body assembly, the cutter head can be attracted to the razor body assembly by the magnetic attracting member 4 for use. The soft rubber is soft and elastic, and it can be made of silica gel, rubber or other soft rubber materials.

[0044] Or, as Figure 11In the illustrated embodiment, the head portion 11 is a rigid structure with good stability. A locking member 5 for locking the soft rubber support portion 12 to the head portion 11 is connected to the head portion 11. Preferably, a locking portion 124 is provided on the soft rubber support portion 12. The locking portion 124 is provided with a concave locking groove 125 or a locking hole in the up-and-down direction. A latching position 51 that cooperates with the locking groove 125 or the locking hole is provided on the locking member 5 or the head portion 11, so that the head portion 11 and the locking member 5 can firmly lock the soft rubber support portion 12. The locking member 5 can be fixed to the head portion 11 by snapping, which is conducive to the disassembly and assembly of the locking member 5 and the head portion 11. Of course, the locking member 5 can also be non-removably fixed to the head portion 11, such as by bonding or ultrasonic welding.

[0045] Preferably, there are two or more cutter nets 2. An intermediate support structure 122 is provided in the middle of the soft rubber support portion 12. The intermediate support structure 122 is arranged between different cutter nets 2. When a structure that cooperates with the intermediate support structure 122 is provided on the razor body assembly, the middle of the soft rubber support portion 12 can be supported by the intermediate support structure 122, which can enhance the stability of the middle of the soft rubber support portion 12 and prevent the cutter net 2 from floating too much on the soft rubber support portion 12.

[0046] Specifically, the intermediate support structure 122 can be a pillar or a groove.

[0047] Such as Figure 3 、 5 In the embodiment shown in FIG. 11, when the intermediate support structure 122 is a pillar, the cutter net 2 is arranged around the circumference of the pillar and is supported on the razor body assembly through the pillar, so as to support the middle of the soft rubber support portion 12 from the middle and prevent the middle of the soft rubber support portion 12 from being pressed down and deformed too much. The position of the pillar can also be limited by arranging a limiting structure on the razor body assembly to cooperate with the pillar to prevent the pillar from moving laterally, so that the middle of the soft rubber support portion 12 has a stable position and the stability of the cutter net floating is improved. Further, a magnetic component 4 is provided inside the pillar, so as to firmly fix the pillar at the corresponding position of the razor body assembly by magnetic attraction.

[0048] Such as Figure 10 In the embodiment shown in FIG., when the intermediate support structure 122 is a groove, a positioning structure inserted into the groove is arranged on the razor body assembly, so as to support the middle of the soft rubber support portion 12 from the middle, prevent the middle of the soft rubber support portion 12 from being pressed down and deformed too much, and at the same time limit the position of the middle of the soft rubber support portion 12 to improve the stability of the cutter net floating.

[0049] A cutter head of a rotary shaver, comprising the above-mentioned floating cutter net structure. A moving cutter 3 is provided in the inner cavity 22. A driving connecting member 6 exposed from the bottom of the head cover portion 11 and the soft rubber support portion 12 is connected to the moving cutter 3. The moving cutter 3 is blocked from below by a limiting portion 121 and is limited in the inner cavity 22. The gap between the limiting portion 121 and the top of the cutter net 2 is greater than the height of the moving cutter 3 so that the moving cutter 3 can move up and down in the inner cavity 22. A central positioning post 26 protruding downward into the inner cavity 22 is provided at the top of the cutter net 2. A central positioning hole 61 matching with the central positioning post 26 is provided on the driving connecting member 6. When the moving cutter 3 moves up and down above the limiting portion 121, the central positioning post 26 and the central positioning hole 61 are always connected together.

[0050] During use, it is connected to the shaver body assembly through the head cover portion 11. The driving connecting member 6 is connected to a driving shaft that can also swing during rotation on the shaver body assembly to drive the moving cutter 3 to work.

[0051] Under the action of an external force, the moving cutter can squeeze open the limiting portion 121 and be installed in the inner cavity 22 or removed from the inner cavity.

[0052] The cutter head structure of this rotary shaver is simple, with few components and convenient assembly.

Claims

1. A floating blade net structure of a rotary shaver, characterized in that: The invention comprises a head cover (11) for connecting to a shaver body assembly and a plurality of blade nets (2); the blade nets (2) are provided with an inner cavity (22) surrounded by side walls (21); the inner cavity (22) allows a movable blade (3) to rotate inside; a plurality of blade nets (2) are integrally injection-molded with a soft rubber support portion (12); the soft rubber support portion (12) supports the plurality of blade nets (2) on the head cover (11); the soft rubber support portion (12) is elastic so that the blade nets (2) connected to the head cover (11) can float when subjected to force; and the inner cavity (22) is exposed from the bottom of the head cover (11) and the soft rubber support portion (12).

2. The floating blade net structure of a rotary shaver according to claim 1, characterized in that: The soft rubber support portion (12) is provided with a limiting portion (121) protruding into the inner cavity (22).

3. The floating blade net structure of a rotary shaver according to claim 1, characterized in that: The knife net (2) is formed by powder metallurgy, and is provided with a skin contact portion (25) extending outward from a side wall (21), and the soft rubber support portion (12) is arranged below the skin contact portion (25).

4. The floating blade net structure of a rotary shaver according to claim 1, characterized in that: The soft rubber support portion (12) is provided with a limiting portion (121) protruding into the inner cavity (22); the knife net (2) is formed by powder metallurgy; the knife net (2) is provided with a skin contact portion (25) extending outward from the side wall (21); and the soft rubber support portion (12) is arranged below the skin contact portion (25).

5. The floating blade net structure of a rotary shaver according to claim 1, characterized in that: A plurality of wrapping rings (123) are provided on the soft rubber support portion (12), a plurality of knife nets (2) are fixed in the plurality of wrapping rings (123), and each of the wrapping rings (123) wraps the side wall (21) of the corresponding knife net (2).

6. The floating blade net structure of a rotary shaver according to claim 1, characterized in that: There are more than two knife nets (2), and an intermediate support structure (122) is provided in the middle of the soft rubber support part (12), and the intermediate support structure (122) is arranged between different knife nets (2).

7. A floating blade net structure for a rotary shaver according to any one of claims 1 to 6, characterized in that: The knife net (2) is provided with a fixing hole (23) and a fixing beam (24); during injection molding, the soft rubber support portion (12) passes through the fixing hole (23) and wraps the fixing beam (24) inside.

8. The floating blade net structure of a rotary shaver according to claim 7, characterized in that: The head cover (11) and the soft rubber support part (12) are both made of soft rubber and are integrally formed. A magnetic attraction component (4) is fixed inside the head cover (11). The head cover (11) fixes the magnetic attraction component (4) inside during injection molding.

9. The floating blade net structure of a rotary shaver according to claim 7, characterized in that: The head cover (11) is a rigid structure, and a locking member (5) is connected to the head cover (11) for locking the soft rubber support portion (12) on the head cover (11).

10. A blade head with a floating blade net structure of a rotary shaver using any one of claims 1 to 9, characterized in that: A movable knife (3) is provided in the inner cavity (22), and a driving connecting piece (6) is connected to the movable knife (3) and is exposed from the bottom of the head cover (11) and the soft rubber support part (12). The soft rubber support part (12) is provided with a limiting part (121) protruding into the inner cavity (22). The movable knife (3) is blocked from below by the limiting part (121) and is limited in the inner cavity (22). The gap between the limiting part (121) and the top of the knife net (2) is greater than the height of the movable knife (3) so that the movable knife (3) can move up and down in the inner cavity (22). A center positioning column (26) protruding downward into the inner cavity (22) is provided at the top of the knife net (2). A center positioning hole (61) matched with the center positioning column (26) is provided on the driving connecting piece (6). When the movable knife (3) moves up and down above the limiting part (121), the center positioning column (26) and the center positioning hole (61) are always connected together.

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