Blade, tool bit structure and hair trimmer

Abstract

The utility model relates to the field of hair trimmers, and discloses a blade, a cutter head structure and a hair trimmer, the blade, the cutter head structure and the hair trimmer comprise a body, one side of the body is provided with a contact surface, the roughness of the contact surface is a, and the a is more than or equal to 0.05 mu m and less than or equal to 0.3 mu m; and the contact surface is provided with a channel for exhausting and guiding oil. By optimizing the roughness and arranging the channels, the blade has higher sharpness and smoother cutting, the roughness of the contact surface is controlled between 0.05 mu m and 0.3 mu m, the surface is smooth enough to reduce friction, the design of the channels provides an exhaust path for the contact surface, the problem of vacuum adsorption caused by high smoothness is effectively solved, and the service life of the blade is prolonged. The current required by cutting is reduced, the power consumption and the temperature rise are reduced, and the energy efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hair trimmer technical field, specifically, a blade, blade head structure and hair trimmer. BACKGROUND

[0002] At present, the blade keeps the sharpness and controls the temperature rise, and the traditional surface roughness is controlled in the range of 0.35um~0.45um.If the surface roughness is further improved, that is, the surface is smoother, although the sharpness of the blade will be improved, but mirror effect is easy to produce, resulting in vacuum adsorption phenomenon.The adsorption will increase the current required when cutting, and the temperature of the blade is increased, thereby affecting the use performance of the blade. SUMMARY

[0003] To solve at least one aspect in the above problem, the utility model provides a kind of blade first, including body, the side of the body is equipped with contact surface, the roughness of the contact surface is a, the a satisfies: 0.05um≤a≤0.3um;The contact surface is equipped with channel for exhaust and oil guide.

[0004] Optionally, the a satisfies: 0.1um≤a≤0.2um;The depth and / or width of the channel is b, and the b satisfies: 0.005mm≤b≤0.05mm.

[0005] Optionally, the channel covers the contact surface.

[0006] Optionally, the channel includes a plurality of hexagonal recesses connected.

[0007] Optionally, the body is equipped with a plurality of spaced apart teeth, and the channel further includes a plurality of spaced apart straight grooves, the straight grooves are connected with the hexagonal recesses, and the straight grooves are distributed at the positions of the teeth.

[0008] Optionally, the body is equipped with a plurality of spaced apart teeth, and each of the teeth is equipped with a cutting edge near one side of the contact surface, the cutting edge is fish scale pattern, so that the cutting edge is alternately arranged thick and thin.

[0009] Optionally, the side wall of the tooth is alternately provided with recess and convex part, and the adjacent recess and convex part are smoothly transitioned.

[0010] Compared with the prior art, the blade in the utility model has higher sharpness, cutting is more smooth, the contact surface roughness is controlled between 0.05 μm and 0.3 μm, the surface is smooth enough to reduce friction, the groove design provides an exhaust path for the contact surface, effectively solves the vacuum adsorption problem caused by high smoothness, reduces the current required for cutting, reduces power consumption and temperature rise, and improves energy efficiency.

[0011] In addition, the utility model provides a tool bit structure, including the blade as described above.

[0012] Optionally, it also includes a moving knife assembly, the moving knife assembly includes a moving knife holder and a moving knife connected with the blade reciprocatingly, the blade is a fixed knife, one side of the fixed knife is equipped with a contact surface, the contact surface contacts with the moving knife, the fixed knife has an inner side and an outer side, the contact surface is located on the inner side, the inner side is equipped with a pit, the pit is installed with a fixed block, the fixed block is equipped with a threaded hole, it also includes a screw, the moving knife holder is fixed to the fixed knife through the cooperation of the screw and the threaded hole, and the outer side is a flat surface.

[0013] Compared with the prior art, the tool bit structure has the same advantages as the above-mentioned blade, and details are not repeated here.

[0014] In addition, the utility model provides a hair clipper, including the blade as described above.

[0015] Compared with the prior art, the hair clipper has the same advantages as the above-mentioned blade, and details are not repeated here. ACCURACY OF DRAWINGS

[0016] Figure 1 The structure of the blade of the utility model embodiment Figure 1 ;

[0017] Figure 2 The structure of the blade of the utility model embodiment Figure 2 ;

[0018] Figure 3 The enlarged view of A part in the utility model embodiment Figure 2 ;

[0019] Figure 4 The structure diagram of the blade and the fixed block assembly of the utility model embodiment

[0020] Figure 5 The enlarged view of B part in the utility model embodiment Figure 4 ;

[0021] Figure 6 The structure diagram of the tool bit structure of the utility model embodiment.

[0022] BRIEF DESCRIPTION OF DRAWINGS

[0023] 1, body; 11, contact surface; 12, groove; 121, hexagonal recess; 122, straight recess; 13, blade; 131, cutting edge; 1311, recess; 1312, protrusion; 14, inner side surface; 141, dimple; 15, outer side surface; 2, moving cutter assembly; 21, moving cutter holder; 22, moving cutter; 3, fixed block; 31, threaded hole. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below in combination with the drawings.

[0025] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "upper", "lower" and the like is based on the orientation or position relationship in normal use of the product.

[0026] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features.

[0027] The utility model embodiment provides a kind of blade, as shown in combination Figures 1 to 5 It is shown that including body 1, the side of body 1 is equipped with contact surface 11, the roughness of contact surface 11 is a, and the a satisfies: 0.05 μm≤a≤0.3 μm;Contact surface 11 is equipped with groove 12 for exhaust and oil guide.

[0028] Among them, the body 1 of blade can be moving cutter 22 or fixed cutter, depending on its installation mode and role in cutter head structure, in the cutter head structure, moving cutter 22 and fixed cutter are oppositely installed and reciprocate in use;The body 1 side of blade is equipped with contact surface 11, and this contact surface 11 refers to the part that moving cutter 22 and fixed cutter directly contact in relative motion;The roughness of contact surface 11 of body 1 is controlled in the range of 0.05 μm to 0.3 μm, compared with the roughness range of tradition, this lower roughness interval provides smoother surface, which helps to further enhance the sharpness and cutting efficiency of blade.

[0029] A groove 12 for air exhaust and oil guide is designed on the contact surface 11 of the blade. The groove 12 is distributed on the contact surface 11, so that the vacuum on the contact surface 11 is quickly eliminated through the air exhaust function of the groove 12 during the reciprocating movement of the fixed blade and the movable blade 22, preventing vacuum adsorption. The groove 12 also has an oil guide function, which can guide the lubricating oil to the contact surface, reduce the friction between the movable blade 22 and the fixed blade, and thus improve the smoothness of the blade, and also prevent heat accumulation during reciprocating movement, thereby effectively reducing the temperature rise of the blade. The groove 12 contains lubricating oil, and the oil guide function of the groove 12 brings better lubrication effect, making the cutting process of the blade more smooth and comfortable, avoiding the discomfort caused by friction, and providing a better user experience.

[0030] In the embodiment, the blade has higher sharpness and smoother cutting by optimizing the roughness and setting the groove 12. The roughness of the contact surface 11 is controlled between 0.05 μm and 0.3 μm, which makes the surface smooth enough to reduce friction. The design of the groove 12 provides an air exhaust path for the contact surface 11, effectively solving the problem of vacuum adsorption caused by high smoothness, reducing the current required for cutting, reducing power consumption and temperature rise, and improving energy efficiency.

[0031] Optionally, in combination with Figure 5 As shown, the a satisfies: 0.1 μm ≤ a ≤ 0.2 μm, and the roughness a of the contact surface 11 is further controlled between 0.1 μm and 0.2 μm, which makes the surface smoother and the sharpness better controlled. The depth of the groove 12 is b, and the b satisfies: 0.005 mm ≤ b ≤ 0.05 mm. The depth of the groove 12 refers to the depth of the groove 12 recessed inward from the contact surface 11 in the thickness direction of the blade. The groove 12 with this depth range helps to quickly exhaust gas during cutting, reduces adsorption effect, and through precise control of the depth of the groove 12, the oil guide effect is more stable, which helps to form a thin lubricating oil film on the cutting surface, reducing friction and blade wear.

[0032] Optionally, the width of the groove 12 is b, and the b satisfies: 0.005 mm ≤ b ≤ 0.05 mm. The width of the groove 12 refers to the width between the two groove walls of the groove 12. The groove 12 with this width range can reduce the adsorption effect, without easily increasing the roughness of the contact surface 11, and also ensure that the lubricating oil can flow normally in the groove 12.

[0033] In this embodiment, the precisely controlled roughness and groove 12 depth make the blade more sharp and smooth during cutting, improving the cutting efficiency of the blade. Through the precise design of the depth of the groove 12, the gas generated during the cutting process of the blade can be quickly exhausted, avoiding the current and power consumption caused by adsorption phenomenon, making the hair trimmer run more energy-efficient. The groove 12 is also more stable in oil guide effect, effectively reducing the friction and wear of the blade.

[0034] Optionally, in combination with Figure 1 As shown, the groove 12 covers the contact surface 11, thereby more evenly covering the entire cutting surface, avoiding local adsorption and uneven friction problems; the evenly distributed groove 12 structure on the contact surface 11 enables the entire blade surface to have exhaust and oil guiding functions, forming a complete exhaust and oil guiding network, further reducing the vacuum adsorption phenomenon occurring during cutting, thereby reducing the current demand; the overall distribution of the groove 12 achieves uniform oil guiding effect, making the blade small and smooth during contact.

[0035] Optionally, in combination with Figure 1 , Figure 4 , Figure 5 As shown, the groove 12 includes a plurality of interconnected regular hexagonal grooves 121. The groove 12 on the contact surface 11 is arranged in a plurality of regular hexagonal grooves 121, and the hexagons are interconnected to form a continuous honeycomb network structure. This arrangement effectively covers the contact surface 11 of the blade, enhances the overall and uniformity of the groove 12 in exhaust and oil guiding functions, and the shape of the regular hexagonal groove 121 maximizes the use of the area of the contact surface 11 by connecting the edges, making the groove structure compact and stable, and also enabling gas to be quickly discharged from any contact position, further reducing the vacuum adsorption phenomenon occurring during cutting, and improving the working efficiency of the blade; the arrangement of a plurality of regular hexagonal grooves 121 also provides a rich oil guiding path, enabling lubricating oil to evenly cover the contact surface 11, reducing friction and wear, and improving the smoothness of cutting. In addition, two adjacent regular hexagonal grooves 121 can also be connected by a straight groove.

[0036] Optionally, in combination with Figures 1 to 5 As shown, the body 1 is provided with a plurality of spaced apart teeth 13, and the groove 12 further includes a plurality of spaced apart straight grooves 122, the straight grooves 122 being interconnected with the regular hexagonal grooves 121, and the straight grooves 122 being distributed at the positions of the teeth 13. A plurality of spaced apart straight grooves 122 are arranged on the contact surface 11 in the area of the teeth 13, each straight groove 122 extending along the length direction of the tooth 13, ensuring that the tooth 13 position also has high exhaust and oil guiding capacity during cutting, making the exhaust during cutting more smooth and the lubricating distribution more uniform, improving the cutting smoothness and accuracy, reducing friction, and improving durability.

[0037] Optionally, in combination with Figures 1 to 5 As shown, the body 1 is provided with a plurality of spaced apart teeth 13, and each of the teeth 13 is provided with a cutting edge 131 on the side close to the contact surface 11, and the cutting edge 131 is in a fish scale pattern, so that the cutting edge 131 is alternately thick and thin.

[0038] The cutting edge 131 of the blade tooth 13 near the contact surface 11 is processed into a fish scale pattern, forming a surface with alternating thick and thin distribution, and the fish scale pattern of the cutting edge 131 is designed with alternating thick and thin intervals, so that the cutting edge 131 can contact the hair at different pressures and angles in work, thereby effectively reducing friction and cutting resistance, and specifically, the thin part helps the hair to retreat backward, and the resistance generated when the transition to the thicker part helps to stabilize the hair at the blade, facilitating efficient cutting, reducing cutting resistance, and making the cutting process more relaxed and efficient; the fish scale pattern makes the cutting part more sharp, and the cutting ability of the blade tooth 13 is improved through a smaller angle.

[0039] Optionally, as shown in Figure 2 、 Figure 3 , the side wall of the blade tooth 13 is alternately provided with a recess 1311 and a convex part 1312, and adjacent recesses 1311 and convex parts 1312 are smoothly transitioned; the side wall of the blade tooth 13 is alternately provided with a recess 1311 and a convex part 1312, and each recess and convex part 1312 is connected by a smooth transition structure, forming a continuous wavy side wall, so that the three-dimensional texture is increased on the side wall of the blade tooth 13, and the capture and segmentation effect of the blade tooth 13 on the hair during trimming is effectively optimized; the smooth transition of the recess 1311 and the convex part 1312 reduces the resistance of the blade tooth 13 during cutting, avoids hair carding, and improves cutting efficiency and stability.

[0040] Another embodiment of the utility model provides a tool bit structure, including the blade as described above.

[0041] The tool bit structure in the embodiment has higher sharpness, and the cutting is smoother, the roughness of the contact surface 11 is controlled between 0.05 μm and 0.3 μm, the surface is smooth enough to reduce friction, the design of the groove 12 provides an exhaust path for the contact surface 11, effectively solves the vacuum adsorption problem caused by high smoothness, reduces the current required for cutting, reduces power consumption and temperature rise, and improves energy efficiency.

[0042] Optionally, as shown in Figures 1 to 6As shown, further comprising a moving knife assembly 2, the moving knife assembly 2 comprising a moving knife holder 21 and a moving knife 22 connected with the blade reciprocating movement, the blade is a fixed knife, one side of the fixed knife is provided with a contact surface 11, the contact surface 11 is in contact with the moving knife 22; the fixed knife has an inner side surface 14 and an outer side surface 15, the contact surface 11 is located on the inner side surface 14, the inner side surface 14 is provided with a recess 141, the recess 141 is provided with a fixed block 3, the fixed block 3 is provided with a threaded hole 31, further comprising a screw, the moving knife holder 21 is fixed to the fixed knife through the cooperation of the screw and the threaded hole 31; the outer side surface 15 is a flat surface.

[0043] Wherein, the fixed connection of the moving knife holder 21 and the fixed knife is realized through the cooperation of the screw and the threaded hole 31, which ensures the stability of the moving knife 22 during reciprocating movement, reduces the possible shaking during cutting, and improves the cutting accuracy; the contact surface 11 is located on the inner side surface 14 of the fixed knife, which ensures the smooth cooperation of the moving knife 22 and the contact surface 11 during reciprocating movement; the outer side surface 15 of the fixed knife is the part of the cutter head structure directly contacting the skin, and the flat surface design, i.e., the outer side surface 15 of the fixed knife is integral without screw holes, greatly improves the skin feel and aesthetic appearance.

[0044] Another embodiment of the utility model provides a hair trimmer, comprising the blade as described above.

[0045] The hair trimmer in the embodiment has higher sharpness through optimizing the roughness and setting the channel 12, cutting is more smooth, the roughness of the contact surface 11 is controlled between 0.05 μm and 0.3 μm, the surface is smooth enough to reduce friction, the channel 12 provides an exhaust path for the contact surface 11, effectively solves the vacuum adsorption problem caused by high smoothness, reduces the current required for cutting, reduces power consumption and temperature rise, and improves energy efficiency.

[0046] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A blade, characterized in that The body (1) is provided with a contact surface (11) on one side, the roughness of the contact surface (11) is a, the a satisfies: 0.05μm≤a≤0.3μm; the contact surface (11) is provided with a channel (12) for exhaust and oil guiding.

2. The blade of claim 1, wherein The a satisfies: 0.1μm≤a≤0.2μm; the depth and / or width of the channel (12) is b, the b satisfies: 0.005mm≤b≤0.05mm.

3. The blade of claim 1, wherein The channel (12) covers the contact surface (11).

4. The blade of claim 1, wherein The channel (12) comprises a plurality of hexagonal recesses (121) in communication.

5. The blade of claim 4, wherein, The body (1) is provided with a plurality of spaced apart knife teeth (13), the channel (12) further comprises a plurality of spaced apart straight grooves (122) in communication with the hexagonal recesses (121), the straight grooves (122) are distributed at the positions of the knife teeth (13).

6. The insert according to any one of claims 1-5, characterized in that The body (1) is provided with a plurality of spaced apart knife teeth (13), each of the knife teeth (13) is provided with a cutting edge (131) on the side close to the contact surface (11), the cutting edge (131) is fish scale patterned, so that the cutting edge (131) is alternately thick and thin.

7. The blade of claim 6, wherein The side wall of the knife tooth (13) is alternately provided with a recess (1311) and a convex part (1312), the adjacent recess (1311) and convex part (1312) are smoothly transitioned.

8. A tool bit structure, characterized by The blade comprises any one of claims 1-7.

9. The tool bit structure according to claim 8, wherein Further comprising a moving knife assembly (2), the moving knife assembly (2) comprises a moving knife holder (21) and a moving knife (22) reciprocally connected with the blade, the blade is a fixed knife, one side of the fixed knife is provided with a contact surface (11), the contact surface (11) is in contact with the moving knife (22); the fixed knife has an inner side surface (14) and an outer side surface (15), the contact surface (11) is located on the inner side surface (14), the inner side surface (14) is provided with a recess (141), the recess (141) is provided with a fixed block (3), the fixed block (3) is provided with a threaded hole (31), further comprising a screw, the moving knife holder (21) is fixed to the fixed knife through cooperation of the screw and the threaded hole (31); the outer side surface (15) is a flat surface.

10. A hair trimmer characterized by The blade comprises any one of claims 1-7. The blade comprises any one of claims 1-7.

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