Dual-purpose tool bit structure and hair trimmer
By designing a dual-purpose blade head structure on the hair trimmer, and combining the synchronous movement of the fixed blade teeth and the shaving blade, the problems of single function and large size of existing hair trimmers are solved, achieving a multi-functional and compact hair trimming effect.
Patent Information
- Application Number
- CN202520471577.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-17
AI Technical Summary
Existing reciprocating hair trimmers have limited functionality, cannot effectively trim hair roots, have complex structures, and are bulky, making them inconvenient to carry and operate.
Design a dual-purpose razor head structure, including a first trimming section and a second trimming section, used for shaving short hair and shaving the hair roots respectively. It adopts a combination design of moving blade assembly and fixed blade holder, including fixed blade teeth and shaving blade strip, and achieves synchronous movement by oscillating motor drive.
It achieves multiple functions, including shaving short hair and scraping the hair roots, improving hair trimming efficiency. Its compact structure and small size reduce production costs and lubrication requirements.
Smart Images
Figure CN223849313U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hair trimmer technical field, specifically, two -purpose cutter head structure and hair trimmer. BACKGROUND
[0002] The reciprocating hair trimmer drives the moving blade to reciprocate through the swing motor, and the moving blade cooperates with the fixed knife holder to trim the hair. Some existing reciprocating hair trimmers are only provided with a trimming part for cutting short hair, that is, only have the function of cutting short hair, the function is relatively single, it is inconvenient to trim the root of the hair, the user needs to use a special trimmer for shaving the root of the hair for trimming, the operation is troublesome, and the hair trimming efficiency is low. In addition, some existing reciprocating hair trimmers have a relatively complex structure, resulting in a large size of the cutter head structure, thereby resulting in a large size of the overall trimmer product, which is not small and flexible to use and is inconvenient to carry. SUMMARY
[0003] To solve at least one of the above problems, the utility model provides a two-purpose cutter head structure suitable for being arranged on a hair trimmer, the hair trimmer comprising a swing motor, the swing motor being provided with a motor shaft, the two-purpose cutter head structure comprising a swing frame suitable for being connected with the motor shaft, the swing frame being connected with a fixed knife holder and a moving knife assembly, the swing frame being connected with the moving knife assembly and driving the moving knife assembly to reciprocate, a first trimming part and a second trimming part being formed between the moving knife assembly and the fixed knife holder, the first trimming part being used for shaving short hair, the second trimming part being used for shaving the root of the hair, the first trimming part comprising fixed knife teeth arranged on the fixed knife holder and moving knife teeth arranged on the moving knife assembly, the fixed knife teeth being matched with the moving knife teeth, the second trimming part comprising a fixed knife net arranged on the fixed knife holder and a shaving blade arranged on the moving knife assembly, the shaving blade being matched with the fixed knife net, the utility model is provided with the first trimming part and the second trimming part, can realize two functions of shaving short hair and shaving the root of the hair, has diversified functions, is simple to operate, and has high hair trimming efficiency; the structure is compact, and the size is small.
[0004] Optionally, the moving knife assembly is arranged between the fixed knife holder and the swing frame, the moving knife assembly comprises a first moving knife part and a second moving knife part, a limiting mechanism is arranged between the first moving knife part and the second moving knife part, so that the first moving knife part and the second moving knife part swing synchronously, the moving knife teeth are arranged on the first moving knife part, and the shaving blade is arranged on the second moving knife part.
[0005] Optionally, the limiting mechanism comprises a first limiting block arranged on the second moving knife part and a first limiting groove arranged on the first moving knife part, and the first limiting block is limited in the first limiting groove.
[0006] Optionally, the swing frame is provided with a swing part connected with the motor shaft and swings synchronously, and the swing part is connected with the second moving cutter and drives the second moving cutter to swing synchronously.
[0007] Optionally, two first limiting blocks are symmetrically arranged, and a second limiting groove is formed between the two first limiting blocks, the swing part is provided with a connecting groove connected with the motor shaft and a second limiting block corresponding to the second limiting groove, and the second limiting block is positioned in the second limiting groove.
[0008] Optionally, two limiting protrusions are symmetrically arranged on the first moving cutter, the first limiting groove is formed between the two limiting protrusions, the first limiting block is positioned on the limiting protrusion, one side of the second limiting block is provided with a protruding block, and a spring is arranged between the protruding block and the first moving cutter; and a compression spring is arranged between the swing part and the second moving cutter.
[0009] Optionally, the first moving cutter is in a sheet shape, and the first moving cutter is bent to form a containing groove, and the second moving cutter is arranged in the containing groove.
[0010] Optionally, the first moving cutter is made of ceramic material, and the fixed cutter holder has an approaching surface close to human skin when the second trimming part trims the root of hair, and the approaching surface is a plane or an arc surface.
[0011] Optionally, the fixed cutter holder is hingedly connected with the swing frame, the fixed cutter tooth is provided with two fixed cutter teeth, the two fixed cutter teeth are symmetrically arranged at edge positions on two sides of the fixed cutter holder, and the fixed cutter net is located between the two fixed cutter teeth.
[0012] Compared with the prior art, the dual-purpose cutter head structure in the utility model is provided with a first trimming part and a second trimming part, can realize two functions of trimming short hair and shaving the root of hair, is various in function, simple to operate, and high in hair trimming efficiency; the structure is compact and small in size; the first moving cutter and the second moving cutter are positioned by the structure of the first moving cutter and the second moving cutter themselves, without the need of using additional parts to position the first moving cutter and the second moving cutter, so that the structure is simple and the production cost is low; since the first moving cutter and the second moving cutter are positioned and swing synchronously, the swing part only needs to be connected with the first moving cutter, so that the first moving cutter and the second moving cutter can be driven to reciprocatingly swing at the same time, the structure is simple and reasonable in design; the first limiting block is positioned on the limiting protrusion, the limiting effect is good, the first moving cutter and the second moving cutter are not prone to relative displacement when swinging, and hair trimming is more stable; the first moving cutter is made of ceramic material, is not prone to heating for a long time, has low lubrication requirement, and can reduce the frequency of adding cooling lubricating liquid due to excessive heating.
[0013] In addition, the utility model also provides a hair trimmer, including the dual-purpose cutter head structure of above, this hair trimmer also has the beneficial effect of above dual-purpose cutter head structure, here no longer tediously repeat. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the perspective view of the utility model embodiment one;
[0015] Figure 2 It is Figure 1 The enlarged view of A part in figure;
[0016] Figure 3 It is the explosion Figure 1 ;
[0017] Figure 4 It is Figure 3 The enlarged view of B part in figure;
[0018] Figure 5 It is the explosion Figure 2 ;
[0019] Figure 6 It is the structure schematic diagram close to surface of the utility model embodiment one;
[0020] Figure 7 It is the perspective view of the utility model embodiment two;
[0021] Figure 8 It is the structure schematic diagram close to surface of the utility model embodiment two;
[0022] The corresponding component name of each reference numeral in the figure is: 1 is swing frame, 101 is swing part, 1011 is connecting groove, 1012 is second limit block, 2 is fixed knife holder, 20 is positioning pin, 201 is first fixed knife holder, 202 is second fixed knife holder, 21 is fixed knife tooth, 22 is fixed knife net, 23 is close surface, 31 is moving knife tooth, 32 is shaving blade, 4 is first moving knife piece, 41 is first limit slot, 42 is containing recess, 43 is limit protrusion, 5 is second moving knife piece, 51 is first limit block, 511 is second limit slot, 512 is lug, 513 is elastic sheet, 514 is guide inclined surface, 6 is compression spring, 7 is hinged shaft. DETAILED DESCRIPTION
[0023] In order to make the above purpose, features and advantages of the utility model can be more obvious and easy to understand, the specific embodiment of the utility model is explained in detail below with the accompanying drawings.
[0024] In the description of the utility model, it is understood that the orientation or position relation indicated by the terms "up", "down" and the like is based on the orientation or position relation when the product is normally used.
[0025] The terms "first", "second", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Thus, features defined with "first", "second", etc. can explicitly or implicitly include at least one of the features.
[0026] Embodiment one:
[0027] Referring to Figures 1-6 , the embodiment one of the utility model provides a dual-purpose cutter head structure, is suitable for setting on hair trimmer, hair trimmer includes swing motor, swing motor is provided with motor shaft, dual-purpose cutter head structure includes swing frame 1 suitable for connecting with motor shaft, swing frame 1 is connected with fixed cutter frame 2 and movable cutter assembly, swing frame 1 is connected with movable cutter assembly and drives movable cutter assembly reciprocating motion, and first trimming part and second trimming part are formed between movable cutter assembly and fixed cutter frame 2, first trimming part is used to shave short hair, and second trimming part is used to shave the root of hair, first trimming part includes fixed cutter tooth 21 set up on fixed cutter frame 2 and movable cutter tooth 31 set up on movable cutter assembly, fixed cutter tooth 21 is adapted with movable cutter tooth 31, and the function of shaving short hair is realized by driving movable cutter tooth 31 relative to fixed cutter tooth 21 reciprocating motion through motor shaft;Second trimming part includes fixed cutter net 22 set up on fixed cutter frame 2 and shaving cutter strip 32 set up on movable cutter assembly, and shaving cutter strip 32 is adapted with fixed cutter net 22, and the function of shaving the root of hair is realized by driving shaving cutter strip 32 relative to fixed cutter net 22 reciprocating motion through motor shaft;The utility model is provided with first trimming part and second trimming part, can realize the two functions of shaving short hair and shaving the root of hair, and is various in function, simple in operation, high in hair trimming efficiency;Compact structure, small size;It needs to be explained that since the thickness of fixed cutter net is small, the root of hair such as human body's beard can be shaved by the cooperation of the mesh of fixed cutter net 22 and shaving cutter strip 32;Preferably, fixed cutter net 22 is set up to be less than 0.1mm in thickness.
[0028] Referring to Figure 1 , Figure 3 and Figure 5 , movable cutter assembly is placed between fixed cutter frame 2 and swing frame 1, movable cutter assembly includes first movable cutter piece 4 and second movable cutter piece 5, and the two functions of shaving short hair and shaving the root of hair are realized by two movable cutter pieces;Limiting mechanism is arranged between first movable cutter piece 4 and second movable cutter piece 5 to make first movable cutter piece 4 and second movable cutter piece 5 swing synchronously, movable cutter tooth 31 is arranged on first movable cutter piece 4, and shaving cutter strip 32 is arranged on second movable cutter piece 5, and a plurality of shaving cutter strips 32 are arranged along the reciprocating direction of second movable cutter piece 5 to improve the shaving effect.
[0029] Referring to Figures 1-4The limiting mechanism comprises a first limiting block 51 arranged on the second moving cutter 5 and a first limiting groove 41 arranged on the first moving cutter 4, the first limiting block 51 is arranged in the first limiting groove 41 for limiting, the first moving cutter 4 and the second moving cutter 5 are limited by their own structures, and no additional parts are needed to limit the first moving cutter 4 and the second moving cutter 5, so that the structure is simple and the production cost is low; the swing frame 1 is provided with a swing part 101 connected with the motor shaft and swinging synchronously, the swing part 101 is connected with the second moving cutter 5 and drives the second moving cutter 5 to swing synchronously, since the first moving cutter 4 and the second moving cutter 5 are limited and swing synchronously, the swing part 101 only needs to be connected with the first moving cutter 4, so as to drive the first moving cutter 4 and the second moving cutter 5 to reciprocate simultaneously, the structure is simple and reasonable in design; the first limiting block 51 is provided with a guide inclined surface 514 facilitating the guide of the first limiting block 51 into the first limiting groove 41, so that the assembly difficulty is reduced.
[0030] Referring to Figures 2-5 The first limiting block 51 is symmetrically arranged with two first limiting blocks 51, and a second limiting groove 511 is formed between the two first limiting blocks 51, the swing part 101 is provided with a connecting groove 1011 connected with the motor shaft and a second limiting block 1012 corresponding to the second limiting groove 511, and the second limiting block 1012 is arranged in the second limiting groove 511 for limiting; the first moving cutter 4 is symmetrically provided with two limiting protrusions 43, the first limiting groove 41 is formed between the two limiting protrusions 43, the first limiting block 51 is abutted on the limiting protrusion 43 for limiting, the limiting effect is good, the first moving cutter 4 and the second moving cutter 5 are not easy to relatively displace when swinging, and the hair trimming is more stable; one side of the second limiting block 1012 is provided with a lug 512, in the embodiment, the lug 512 is provided with two lugs 512, and the two lugs 512 are symmetrically distributed on the two sides of the second limiting block 1012; the lug 512 and the first moving cutter 4 are abutted with an elastic sheet 513, the elastic force of the elastic sheet 513 abuts and presses the first moving cutter 4 on the fixed cutter holder, after abutting and pressing, the first moving cutter 4 swings relative to the fixed cutter holder to realize the function of cutting short hair; the swing part 101 and the second moving cutter 5 are abutted with a compression spring 6, the second moving cutter 5 is abutted and pressed on the fixed cutter holder by the elastic force of the compression spring 6, after abutting and pressing, the second moving cutter 5 swings relative to the fixed cutter holder to realize the function of shaving the hair root.
[0031] Referring to Figure 1 , Figure 3 , Figure 5 and Figure 6, the first moving cutter 4 is in a sheet shape, occupies a small space after installation, and makes the overall cutter head structure small and compact;The first moving cutter 4 is bent to form a containing groove 42, and the second moving cutter 5 is arranged in the containing groove 42, so that the structure is compact and small;The first moving cutter 4 is made of ceramic material, is not easy to heat for a long time, has low lubrication requirement, and reduces the frequency of adding cooling lubricating liquid due to excessive heating;The first moving cutter 4 can be integrally made of ceramic material or only the moving cutter teeth 31 on the first moving cutter 4 are made of ceramic material;When the second trimming part trims the root of the hair, the fixed cutter holder 2 has an approaching surface 23 close to the human skin, the approaching surface 23 is a plane, and the root of the hair on the relatively flat part of the human body can be conveniently trimmed;The fixed cutter holder 2 is hingedly connected with the swing holder 1 through the hinge shaft 7, so that the fixed cutter holder 2 can rotate at a certain angle relative to the swing holder 1 during use, the fixed cutter holder 2 can rotate adaptively when shaving the root of the hair, the fixed cutter holder 2 can be more close to the skin, and the trimming effect is improved;The fixed cutter teeth 21 are provided in two, the two fixed cutter teeth 21 are symmetrically arranged at edge positions on both sides of the fixed cutter holder 2, and the fixed cutter net 22 is located between the two fixed cutter teeth 21;The fixed cutter holder 2 comprises a first fixed cutter holder 201 and a second fixed cutter holder 202, the first fixed cutter holder 201 and the second fixed cutter holder 202 are fixed through the positioning pin 20, the fixed cutter teeth 21 are arranged on the first fixed cutter holder 201, and the fixed cutter net 22 is arranged on the second fixed cutter holder 202.
[0032] Embodiment two
[0033] With reference to Figure 7 and Figure 8 , the difference between the embodiment two and the embodiment one is that the approaching surface 23 is an arc surface, is more close to the arc-shaped part of the human face and head, especially the concave part, and the trimming effect is improved.
[0034] The dual-purpose cutter head structure in the utility model is provided with a first trimming part and a second trimming part, can realize two functions of shaving short hair and shaving the root of the hair, is various in function, simple to operate and high in hair trimming efficiency;The structure is compact and small in size;The first moving cutter and the second moving cutter are limited by the structure of the first moving cutter and the second moving cutter themselves, do not need to be limited by additional parts, are simple in structure, and low in production cost;Since the first moving cutter and the second moving cutter are limited and swing synchronously, the first moving cutter and the second moving cutter can be driven to reciprocatingly swing simultaneously by connecting the swing part with the first moving cutter, the structure is simple and reasonable in design;The first limiting block is limited on the limiting protrusion, has good limiting effect, the first moving cutter and the second moving cutter are not easy to relatively displace when swinging, and the hair is more stable in trimming;The first moving cutter is made of ceramic material, is not easy to heat for a long time, has low lubrication requirement, and can reduce the frequency of adding cooling lubricating liquid due to excessive heating.
[0035] In addition, the utility model still provides a hair trimmer, including above-mentioned dual -purpose cutter head structure, this hair trimmer also same has above-mentioned dual -purpose cutter head structure's beneficial effect, here no longer repeat.
[0036] The above is only the preferred embodiment of the utility model, it should be pointed out that, for ordinary skilled person in the art, without departing from the technical principle of the utility model, can make a number of improvements and refinements, these improvements and refinements should also be considered as the protection scope of the utility model.
Claims
1. A dual-purpose head structure adapted to be provided on a hair clipper, the hair clipper comprising an oscillating motor provided with a motor shaft, characterized in that, The dual-purpose cutter head structure comprises a swing frame (1) adapted to be connected with the motor shaft, a fixed cutter frame (2) and a movable cutter assembly connected with the swing frame (1), the swing frame (1) is connected with the movable cutter assembly and drives the movable cutter assembly to reciprocate, a first trimming part and a second trimming part are formed between the movable cutter assembly and the fixed cutter frame (2), the first trimming part is used for trimming short hair, and the second trimming part is used for shaving the root of the hair, the first trimming part comprises fixed cutter teeth (21) arranged on the fixed cutter frame (2) and movable cutter teeth (31) arranged on the movable cutter assembly, and the fixed cutter teeth (21) are matched with the movable cutter teeth (31); the second trimming part comprises a fixed cutter net (22) arranged on the fixed cutter frame (2) and a shaving blade (32) arranged on the movable cutter assembly, and the shaving blade (32) is matched with the fixed cutter net (22).
2. The dual-purpose bit structure according to claim 1, wherein The movable cutter assembly is arranged between the fixed cutter frame (2) and the swing frame (1), the movable cutter assembly comprises a first movable cutter member (4) and a second movable cutter member (5), a limiting mechanism is arranged between the first movable cutter member (4) and the second movable cutter member (5) to enable the first movable cutter member (4) and the second movable cutter member (5) to swing synchronously, the movable cutter teeth (31) are arranged on the first movable cutter member (4), and the shaving blade (32) is arranged on the second movable cutter member (5).
3. The dual-purpose bit structure according to claim 2, wherein The limiting mechanism comprises a first limiting block (51) arranged on the second movable cutter member (5) and a first limiting groove (41) arranged on the first movable cutter member (4), and the first limiting block (51) is arranged in the first limiting groove (41) to be limited.
4. The dual-purpose bit structure according to claim 3, wherein The swing frame (1) is provided with a swing part (101) connected with the motor shaft and swinging synchronously, the swing part (101) is connected with the second movable cutter member (5) and drives the second movable cutter member (5) to swing synchronously.
5. The dual-purpose bit structure according to claim 4, wherein The first limiting block (51) is symmetrically arranged on two sides, a second limiting groove (511) is formed between the two first limiting blocks (51), the swing part (101) is provided with a connecting groove (1011) connected with the motor shaft and a second limiting block (1012) corresponding to the second limiting groove (511), and the second limiting block (1012) is arranged in the second limiting groove (511) to be limited.
6. The dual-purpose bit structure according to claim 5, wherein The first movable cutter member (4) is symmetrically provided with two limiting protrusions (43), the first limiting groove (41) is formed between the two limiting protrusions (43), the first limiting block (51) is abutted on the limiting protrusion (43) to be limited, one side of the second limiting block (1012) is provided with a lug (512), and a spring sheet (513) is abutted between the lug (512) and the first movable cutter member (4); the swing part (101) and the second movable cutter member (5) are abutted with a compression spring (6).
7. The dual-purpose bit structure according to claim 2, wherein The first moving cutter (4) is in a sheet shape, and the first moving cutter (4) is bent to form a containing groove (42), and the second moving cutter (5) is arranged in the containing groove (42).
8. The dual-purpose bit head structure according to claim 2, wherein The first moving cutter (4) is made of ceramic material, and the fixed cutter holder (2) has a close surface (23) close to the human skin when the second trimming part trims the root of the hair, and the close surface (23) is a plane or an arc surface.
9. The dual-purpose bit structure according to any one of claims 1-8, wherein, The fixed cutter holder (2) is hingedly connected with the swing holder (1), the fixed cutter tooth (21) is provided with two, and the two fixed cutter teeth (21) are symmetrically distributed at the edge positions on both sides of the fixed cutter holder (2), and the fixed cutter net (22) is located between the two fixed cutter teeth (21).
10. A hair trimmer characterized by The utility model provides a dual-purpose cutter head structure.