Tool bit assembly of rotary shaver

Abstract

The utility model discloses a razor head assembly of a rotary razor, which comprises a razor net rack, a razor net and a movable razor, the razor net rack is provided with a razor net mounting hole, the razor net is mounted in the razor net mounting hole from top to bottom, a buckle structure for limiting the razor net in the razor net mounting hole is arranged between the razor net and the razor net rack, and the movable razor is mounted in the razor net mounting hole. The cutter net frame is provided with a blocking structure which blocks the movable cutter from the lower portion and prevents the movable cutter from falling out downwards, a center positioning column and a center positioning hole which are matched with each other are arranged between the cutter net and the movable cutter, the movable cutter is provided with a driving connecting piece, and the driving connecting piece is exposed out of the bottom of the cutter net frame. And the assembly process is simple.

Description

Technical field

[0001] The utility model relates to a cutter head assembly of a rotary shaver. [Background Technology]

[0002] In existing rotary shavers, the blade net is usually formed with a flange folded outward from the side wall at the bottom of the blade net body. A blade net mounting hole is provided on the blade net frame. The blade net mounting hole can only allow the blade net body to pass through, but the flange will be stuck on the inner side of the blade net frame and cannot pass through the blade net mounting hole. During assembly, the blade net is installed into the blade net mounting hole from bottom to top, and a limited component is installed into the blade net frame below the flange to prevent the blade net from falling out of the blade net frame. For example, the structure disclosed in the patent publication No. CN114030012A, entitled "A Floating Blade Net Structure for a Shaver and a Shaver", the blade net is mounted on the blade net frame by a spring and a positioning frame. It has many components and a complicated assembly process.

[0003] In addition, in order to enable the knife net to be installed in the knife net installation hole and exposed above the knife net frame, the knife net is usually a structure with a small top and a large bottom. When comb teeth protruding outward are provided on the knife net to facilitate combing and hooking long hair into the beard inlet hole, the knife net and the knife net frame cannot be assembled.

[0004] The present invention is made based on this situation. [Utility Model Content]

[0005] The technical problem to be solved by the utility model is to provide a cutter head assembly for a rotary shaver, which has a simple structure, few parts and components and is easy to produce and assemble.

[0006] The utility model is realized through the following technical solutions:

[0007] A blade head assembly of a rotary shaver includes a blade net frame, a blade net and a movable blade, the blade net frame being provided with a blade net mounting hole, the blade net being mounted in the blade net mounting hole from top to bottom, a snap-fit structure being provided between the blade net and the blade net frame for confining the blade net in the blade net mounting hole, the blade net frame being provided with a blocking structure for blocking the movable blade from below to prevent it from falling downward, a matching center positioning column and a center positioning hole being provided between the blade net and the movable blade, the movable blade being provided with a drive connecting member, the drive connecting member being exposed from the bottom of the blade net frame.

[0008] As described above, in the blade head assembly of a rotary shaver, the movable blade is installed in the blade mesh mounting hole from top to bottom, and the blocking structure includes a blocking frame integrally formed on the blade mesh frame, and the blocking frame is provided with a through hole for the driving connecting member to be exposed from the bottom, and the blocking frame is located below the blade mesh mounting hole.

[0009] In the blade head assembly of a rotary shaver as described above, the driving connecting member passes downward through the through hole, and the blocking frame is further provided with a chip removal hole which is connected to the blade mesh mounting hole from top to bottom.

[0010] For the buckle structure, in one embodiment, the buckle structure includes a buckle column protruding from the side in the knife net mounting hole, and a buckle groove arranged on the outer wall of the knife net, the buckle groove includes an entrance groove arranged above and below, and a transverse groove arranged laterally, the entrance groove and the transverse groove are connected, when the knife net is installed into the knife net mounting hole from top to bottom, the buckle column enters the buckle groove from the entrance groove and the knife net frame is rotated to make the buckle column enter the transverse groove to prevent the knife net from escaping upward, and the knife net is provided with a protrusion protruding from the transverse groove to prevent the buckle column from sliding out of the transverse groove.

[0011] Regarding the buckle structure, in another embodiment, the buckle structure includes a buckle hole and a buckle, and the buckle is buckled in the buckle hole to prevent the knife net from escaping upward from the knife net mounting hole;

[0012] In a preferred embodiment, the buckle hole is provided on the outer wall of the knife net, the buckle is provided on the knife net frame, the buckle protrudes from the knife net mounting hole and buckles into the buckle hole when the knife net is inserted into the knife net mounting hole; preferably, at least one of the buckle and the buckle hole is provided on a cantilever, the knife net frame is provided with notches on both sides of the buckle, and a cantilever is formed between the two notches, the buckle is located on the cantilever, or the outer wall of the knife net is provided with notches on both sides of the buckle hole, and a cantilever is formed between the two notches, and the buckle hole is located on the cantilever;

[0013] In another preferred embodiment, the inner wall of the knife net mounting hole is concave to form a snap hole, and the snap is set on the outer wall of the knife net. The snap protrudes to the side from the outer wall of the knife net and is buckled into the snap hole when the knife net is inserted into the knife net mounting hole.

[0014] In the blade head assembly of a rotary shaver as described above, the height of the buckle hole is greater than the buckle and enables the blade net to float up and down in the blade net installation hole. An elastic member for elastically pressing the blade net upward is provided under the blade net or the movable blade.

[0015] In the cutter head assembly of a rotary shaver as described above, comb teeth protruding toward the side are provided on the upper portion of the cutter net.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] 1. The blade net of the utility model is installed in the blade net installation hole from top to bottom, which is conducive to setting other structures protruding outward on the upper part of the blade net. Preferably, the upper part of the blade net is provided with comb teeth protruding to the side, so as to facilitate combing hair and guiding hair into the pores for cutting, making it easier to shave long hair while being able to shave short beards.

[0018] 2. The blade net and movable blade of the present invention are installed from top to bottom in the blade net mounting hole. The blade net frame is integrally formed with a blocking frame, which is located below the blade net mounting hole. The movable blade and blade net are then installed from top to bottom in the blade net mounting hole. By snapping the blade net onto the blade net frame, the blade net and movable blade can be confined within the blade net mounting hole, thereby reducing the number of parts in the rotary shaver head assembly, simplifying the structure, and facilitating assembly. Similarly, when the blade net floats up and down and an elastic member is provided below for elastic support from below, the elastic member can also be provided above the blocking frame, with the blocking frame providing bottom support. During installation, by snapping the blade net onto the blade net frame, the blade net, movable blade, and elastic member can be confined within the blade net mounting hole, facilitating production and assembly.

Brief Description of the Drawings

[0019] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0020] Figure 1 This is an exploded view of an embodiment of a cutter head assembly of a rotary shaver of the present invention;

[0021] Figure 2 yes Figure 1 A partial enlarged view of point I in the middle;

[0022] Figure 3 yes Figure 1 a bottom view of an embodiment;

[0023] Figure 4 It is along Figure 3 Cross-section view in the AA direction;

[0024] Figure 5 This is an exploded view of a second embodiment of a cutter head assembly of a rotary shaver according to the present invention;

[0025] Figure 6 yes Figure 5 Cross-sectional view of an embodiment;

[0026] Figure 7 This is an exploded view of a third embodiment of a cutter head assembly of a rotary shaver according to the present invention;

[0027] Figure 8 yes Figure 7 Cross-sectional view of an embodiment;

[0028] Figure 9 This is an exploded view of a fourth embodiment of a cutter head assembly of a rotary shaver according to the present invention;

[0029] Figure 10 yes Figure 9 a bottom view of an embodiment;

[0030] Figure 11 yes Figure 9 Cross-sectional view of an embodiment. [Specific implementation method]

[0031] The present invention will be further described below with reference to the accompanying drawings:

[0032] like Figures 1 to 11 The blade head assembly of a rotary shaver shown in the figure includes a blade net frame 1, a blade net 2 and a movable blade 3. The blade net frame 1 is provided with a blade net mounting hole 11, and the blade net 2 is installed in the blade net mounting hole 11 from top to bottom. A snap-fit structure is provided between the blade net 2 and the blade net frame 1 to confine the blade net 2 in the blade net mounting hole 11. The blade net frame 1 is provided with a blocking structure to block the movable blade 3 from below to prevent the movable blade 3 from falling downward. A matching center positioning column 25 and a center positioning hole 32 are provided between the blade net 2 and the movable blade 3. A drive connecting member 31 is provided on the movable blade 3, and the drive connecting member 31 is exposed from the bottom of the blade net frame 1.

[0033] Installing the blade net 2 from top to bottom in the blade net mounting hole 11 facilitates the provision of other outwardly protruding structures on the upper portion of the blade net 2. For example, the blade net 2 is provided with comb teeth 24 protruding laterally from the upper portion to facilitate combing hair and guiding hair into the pores for cutting, making it easier to shave long hair while being able to shave short beards. Preferably, the blade net 2 is formed from powder metallurgy to facilitate the integral molding of the comb teeth 24.

[0034] Furthermore, the movable knife 3 is installed in the knife net mounting hole 11 from top to bottom, and the blocking structure includes a blocking frame 12 integrally formed on the knife net frame 1, and the blocking frame 12 is provided with a through hole 13 for the driving connecting member 31 to be exposed from the bottom. The blocking frame 12 is located below the knife net mounting hole 11, and the movable knife 3 and the knife net 2 are installed in the knife net mounting hole 11 from top to bottom. By snapping the knife net 2 onto the knife net frame 1, the knife net 2 and the movable knife 3 can be confined in the knife net mounting hole 11, so that the number of parts of the rotary shaver head assembly is small, the structure is simple, and it is easy to assemble.

[0035] Furthermore, the driving connector 31 passes downward through the through hole 13 to facilitate connection with the driving structure of the external host. The blocking frame 12 is also provided with a chip discharge hole 14 connected to the knife net mounting hole 11 above and below for discharging hair chips.

[0036] As a preferred embodiment of the buckle structure, Figure 1-4As shown, the buckle structure includes a buckle column 15 protruding from the side in the knife net mounting hole 11, and a buckle groove arranged on the outer wall of the knife net 2, the buckle groove includes an entrance groove 21 arranged above and below, and a transverse groove 22 arranged laterally, the entrance groove 21 and the transverse groove 22 are connected, when the knife net 2 is installed into the knife net mounting hole 11 from top to bottom, the buckle column 15 enters the buckle groove from the entrance groove 21 and the knife net frame 1 is rotated to make the buckle column 15 enter the transverse groove 22, thereby preventing the knife net 2 from escaping upward, the knife net 2 is provided with a protrusion 23 protruding in the transverse groove 22 to prevent the buckle column 15 from sliding out of the transverse groove 22, under the action of external force, the buckle column 15 can slide over the protrusion 23 and enter and exit the transverse groove 22, and the structure is simple.

[0037] A pivoting structure may be provided on the knife net frame to be pivotally connected to the head cover, such as a rotating shaft or a rotating hole, so that the knife net frame together with the knife net thereon can swing relative to the head cover.

[0038] As another preferred embodiment of the snap-on structure, the snap-on structure includes a snap-on hole 1a and a snap-on 1b. The snap-on 1b is snapped into the snap-on hole 1a to prevent the knife net 2 from escaping upward from the knife net mounting hole 11. The structure is simple and the installation between the knife net 2 and the knife net frame 1 is convenient.

[0039] Preferably, if Figure 5-8 In the embodiment shown, the buckle hole 1a is provided on the outer wall of the knife net 2, and the buckle 1b is provided on the knife net frame 1. The buckle 1b protrudes from the knife net mounting hole 11 and buckles into the buckle hole 1a when the knife net 2 is inserted into the knife net mounting hole 11.

[0040] Preferably, at least one of the buckle 1b and the buckle hole 1a is provided on the cantilever 1c, and the cantilever 1c is conducive to deformation, so that the knife net 2 is conveniently installed in the knife net installation hole 11. Figure 5 In the embodiment shown, the blade grid frame 1 is provided with notches 1d on both sides of the buckle 1b, and a cantilever 1c is formed between the two notches 1d, and the buckle 1b is located on the cantilever 1c; or as shown in FIG. Figure 7 In the embodiment shown, notches 1d are provided on the outer wall of the blade net 2 on both sides of the buckle hole 1a, and a cantilever 1c is formed between the two notches 1d, and the buckle hole 1a is located on the cantilever 1c;

[0041] Or, preferably, as Figure 9-11 In the embodiment shown, the inner wall of the knife net mounting hole 11 is concave to form a snap hole 1a, and the snap 1b is arranged on the outer wall of the knife net 2. The snap 1b protrudes to the side from the outer wall of the knife net 2 and is snapped into the snap hole 1a when the knife net 2 is inserted into the knife net mounting hole 11.

[0042] Preferably, if Figure 7-11In the embodiment shown, the height of the buckle hole 1a is greater than that of the buckle 1b and enables the knife net 2 to float up and down in the knife net installation hole 11. An elastic member 5 is provided under the knife net 2 or the movable knife 3 for elastically pressing the knife net 2 upward.

[0043] Since the blocking frame 12 is integrally formed on the knife net frame 1, during assembly, it is only necessary to install the elastic member 5, the movable knife 3 and the knife net 2 in the knife net mounting hole 11 in sequence. By snapping the knife net 2 onto the knife net frame 1, the knife net 2, the movable knife 3 and the elastic member 5 can be confined in the knife net mounting hole 11, which facilitates production and assembly.

Claims

1. A rotary shaver head assembly, characterized in that: The utility model comprises a knife net frame (1), a knife net (2) and a movable knife (3); the knife net frame (1) is provided with a knife net installation hole (11); the knife net (2) is installed in the knife net installation hole (11) from top to bottom; a buckle structure is provided between the knife net (2) and the knife net frame (1) for limiting the knife net (2) in the knife net installation hole (11); the knife net frame (1) is provided with a blocking structure for blocking the movable knife (3) from below to prevent the movable knife (3) from falling downward; a matching center positioning column (25) and a center positioning hole (32) are provided between the knife net (2) and the movable knife (3); a driving connecting member (31) is provided on the movable knife (3); and the driving connecting member (31) is exposed from the bottom of the knife net frame (1).

2. The rotary shaver head assembly according to claim 1, characterized in that: The movable knife (3) is installed in the knife net installation hole (11) from top to bottom, and the blocking structure includes a blocking frame (12) integrally formed on the knife net frame (1), and the blocking frame (12) is provided with a through hole (13) for the driving connecting member (31) to be exposed from below, and the blocking frame (12) is located below the knife net installation hole (11).

3. The rotary shaver head assembly according to claim 2, characterized in that: The driving connecting member (31) passes downward through the through hole (13), and the blocking frame (12) is further provided with a chip removal hole (14) which is connected to the knife net mounting hole (11) from top to bottom.

4. A rotary shaver head assembly according to any one of claims 1 to 3, characterized in that: The buckle structure comprises a buckle column (15) protruding from the side in the knife net installation hole (11), and a buckle groove arranged on the outer wall of the knife net (2), wherein the buckle groove comprises an entrance groove (21) arranged above and below, and a transverse groove (22) arranged transversely, wherein the entrance groove (21) and the transverse groove (22) are connected, and when the knife net (2) is installed into the knife net installation hole (11) from top to bottom, the buckle column (15) enters the buckle groove from the entrance groove (21) and the buckle column (15) enters the transverse groove (22) by rotating the knife net frame (1), thereby preventing the knife net (2) from escaping upwards, and the knife net (2) is provided with a protrusion (23) protruding from the transverse groove (22) to prevent the buckle column (15) from sliding out of the transverse groove (22).

5. A rotary shaver head assembly according to any one of claims 1 to 3, characterized in that: The buckle structure comprises a buckle hole (1a) and a buckle (1b), wherein the buckle (1b) is buckled in the buckle hole (1a) to prevent the knife net (2) from escaping upward from the knife net mounting hole (11).

6. The rotary shaver head assembly according to claim 5, characterized in that: The buckle hole (1a) is arranged on the outer wall of the knife net (2), the buckle (1b) is arranged on the knife net frame (1), and the buckle (1b) protrudes from the knife net installation hole (11) and buckles into the buckle hole (1a) when the knife net (2) is inserted into the knife net installation hole (11).

7. The rotary shaver head assembly according to claim 6, characterized in that: At least one of the buckle (1b) and the buckle hole (1a) is arranged on the cantilever (1c); the knife net frame (1) is provided with notches (1d) on both sides of the buckle (1b), and a cantilever (1c) is formed between the two notches (1d); the buckle (1b) is located on the cantilever (1c); or the outer wall of the knife net (2) is provided with notches (1d) on both sides of the buckle hole (1a), and a cantilever (1c) is formed between the two notches (1d), and the buckle hole (1a) is located on the cantilever (1c).

8. The rotary shaver head assembly according to claim 5, characterized in that: The inner wall of the knife net installation hole (11) is concave to form a buckle hole (1a); the buckle (1b) is arranged on the outer wall of the knife net (2); the buckle (1b) protrudes from the outer wall of the knife net (2) to the side and buckles into the buckle hole (1a) when the knife net (2) is inserted into the knife net installation hole (11).

9. A rotary shaver head assembly according to any one of claims 6 to 8, characterized in that: The height of the buckle hole (1a) is greater than that of the buckle (1b) and enables the knife net (2) to float up and down in the knife net installation hole (11); an elastic member (5) for elastically pressing the knife net (2) upward is provided below the knife net (2) or the movable knife (3).

10. A rotary shaver head assembly according to any one of claims 1-3, 6-8, characterized in that: The upper portion of the knife net (2) is provided with comb teeth (24) protruding toward the side.

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