Trimming cutter head and hair trimmer

Abstract

The utility model relates to the field of hair trimmers, and discloses a trimming cutter head and a hair trimmer. The side blade group and the middle blade group are installed on the tool bit frame, the side blade group is suitable for trimming hair located on the side edge of the tool bit frame, the middle blade group is suitable for cutting and shaving the hair trimmed by the side blade group, the side blade group comprises a fixed blade and a side movable blade, the fixed blade is fixedly connected with the tool bit frame, and the side movable blade is fixedly connected with the tool bit frame. A plurality of fixed cutter teeth are arranged on the outer side wall of the fixed cutter blade at intervals, the side edge movable cutter blade is located on one side of the fixed cutter blade and connected with the cutter head frame in a sliding mode, a plurality of movable cutter teeth are arranged on the side, close to the fixed cutter teeth, of the side edge movable cutter blade at intervals, protective hooks suitable for protecting the movable cutter teeth are bent at the ends of the fixed cutter teeth, and the movable cutter teeth are located on the sides, close to the fixed cutter blade, of the protective hooks. According to the utility model, the end parts of the movable cutter teeth are not easy to touch the skin to cause scratches, so that the length of the left hair root is shortened, and the hair is cleaned more cleanly.

Description

Technical Field

[0001] This utility model relates to the field of hair trimmer technology, and more specifically, to a trimmer head and a hair trimmer. Background Technology

[0002] A hair trimmer head includes a head holder, a fixed blade, and a moving blade. The fixed blade is fixedly mounted on the head holder, while the moving blade slides back and forth on the head holder, allowing the moving and fixed blades to work together to trim hair. In some existing models, the moving and fixed blades are located on one side of the head holder and exposed. To prevent the moving blade's teeth from contacting the user's skin and causing scratches during trimming, users avoid excessive contact between the fixed blade and the skin. However, this results in longer, less clean hairs being left at the root. Utility Model Content

[0003] To address at least one of the aforementioned problems, this utility model first provides a trimming scissor head, comprising a scissor head holder, a side blade assembly and a middle blade assembly mounted on the scissor head holder. The side blade assembly is adapted to trim hair located on the side of the scissor head holder, and the middle blade assembly is adapted to shave hair after it has been trimmed by the side blade assembly. The side blade assembly includes a fixed blade and a side movable blade. The fixed blade is fixedly connected to the scissor head holder, and the outer side wall of the fixed blade is provided with a plurality of fixed blade teeth at intervals. The side movable blade is located on one side of the fixed blade and is slidably connected to the scissor head holder. The side movable blade is provided with a plurality of movable blade teeth at intervals on the side of the side movable blade near the fixed blade teeth. The end of each fixed blade tooth is bent with a protective hook adapted to protect the movable blade teeth, and the movable blade teeth are located on the side of the protective hook near the fixed blade.

[0004] Optionally, the end of the fixed cutter tooth is provided with an arc surface.

[0005] Optionally, a protective gap is provided between the protective hook and the moving blade tooth.

[0006] Optionally, the length of the protective hook from the end away from the fixed blade to the side of the fixed blade near the moving blade is greater than the thickness of the end of the moving blade.

[0007] Optionally, the intermediate blade group is provided in multiple groups at intervals.

[0008] Optionally, the intermediate blade group is arranged at intervals with the fixed blade teeth. The intermediate blade group includes a fixed blade net and an intermediate moving blade. The fixed blade net is fixedly connected to the cutter head holder, and the intermediate moving blade is located on the side of the fixed blade net close to the cutter head holder and is slidably connected to the cutter head holder.

[0009] Optionally, the cutter head holder is provided with a moving tool holder assembly, which includes a sliding frame, a side moving tool holder, and a middle moving tool holder. The sliding frame is adapted to be connected to a drive component and slides back and forth in a direction on the cutter head holder. The side moving tool holder and the middle moving tool holder are both connected to the sliding frame and slide synchronously. The side moving blade is fixedly connected to the side moving tool holder, and the middle moving blade is fixedly connected to the middle moving tool holder.

[0010] Optionally, the sliding frame is provided with irregularly shaped springs, the irregularly shaped springs including a base plate spring, a first bent spring, and a second bent spring. The base plate spring is connected to the sliding frame. One end of the first bent spring is fixedly connected to the base plate spring, and the other end abuts against the side moving blade holder to drive the side moving blade to press against the fixed blade. One end of the second bent spring is fixedly connected to the base plate spring, and the other end abuts against the intermediate moving blade holder to drive the intermediate moving blade to press against the fixed blade.

[0011] Optionally, the bottom of the side moving tool holder is provided with a linkage plate. The linkage plate is fixed on one side near the side moving tool holder and is provided with two clamping plates at intervals. The side moving tool holder is interference-fitted between the two clamping plates. A linkage support leg is fixed on one side of the linkage plate perpendicular to the clamping plates. One side of the linkage support leg extends toward the side moving tool holder and is inserted into the side moving tool holder; the other side extends away from the side moving tool holder and cooperates with the sliding frame.

[0012] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0013] 1. The protective hook can cover and isolate the end of the moving blade, allowing the fixed blade to fit the skin more closely and preventing the end of the moving blade from touching the skin and causing scratches. This shortens the length of the hair left at the root. Then, the middle blade group will trim the hair that has been shortened by the side blade group again, making the hair cleaner. In addition, the side blade group and the middle blade group can also be used independently after being integrated into a blade holder, so that the appropriate blade group can be selected for different parts of the hair to trim.

[0014] 2. The end of the fixed blade tooth is made into an arc surface, so that the protective hook is an arc hook. Compared with the pointed end of the fixed blade tooth, the arc surface and the protective hook can make the end of the fixed blade tooth relatively thick, and it moves more smoothly on the skin surface, making it less likely to puncture the skin.

[0015] 3. The fixed blade mesh allows the middle moving blades to fit closer to the skin, resulting in a cleaner hair trimming. Multiple sets of middle blades can create multiple trimming effects, further improving the hair cleaning effect.

[0016] 4. Compared to setting multiple springs to abut the side moving tool holder and the middle moving tool holder respectively, only one irregularly shaped spring is needed to abut the side moving tool holder and the middle moving tool holder. The structure is simple, the number of accessories of the trimmer head is reduced, and the assembly is convenient.

[0017] In addition, this utility model provides a hair trimmer, including the trimmer head as described above.

[0018] Compared with the prior art, the hair trimmer described in this utility model has the same advantages as the aforementioned trimmer head compared with the prior art, which will not be repeated here. Attached Figure Description

[0019] Figure 1 This is a structural diagram of the cutter head holder, side blade assembly, and middle blade assembly in Embodiment 1 of this utility model;

[0020] Figure 2 This is an exploded view of the cutter head holder, side blade assembly, and middle blade assembly in Embodiment 1 of this utility model;

[0021] Figure 3 This is an exploded view of the side moving tool holder and the linkage plate in Embodiment 1 of this utility model;

[0022] Figure 4 This is an exploded view of the fixed blade, fixed blade mesh, and intermediate moving blade in Embodiment 1 of this utility model;

[0023] Figure 5 This is an exploded view of the side blade assembly in Embodiment 1 of this utility model;

[0024] Figure 6 This is a partial enlarged cross-sectional view of Embodiment 1 of this utility model;

[0025] Figure 7 This is a structural diagram of the cutter head holder, side blade assembly, and middle blade assembly in Embodiment 2 of this utility model.

[0026] Explanation of reference numerals in the attached drawings: 1. Tool holder; 11. Moving tool holder assembly; 12. Sliding frame; 13. Side moving tool holder; 131. Linkage plate; 132. Clamping plate; 133. Linkage support leg; 14. Central moving tool holder; 15. Irregularly shaped spring; 16. Base plate spring; 17. First bending spring; 18. Second bending spring; 2. Side blade assembly; 21. Fixed blade; 22. Side moving blade; 23. Fixed blade tooth; 24. Moving blade tooth; 25. Protective hook; 3. Central blade assembly; 31. Fixed blade net; 32. Central moving blade. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the following description is provided in conjunction with the appendix. Figure 1-7This application will be described in further detail.

[0028] Firstly, this utility model provides a trimming scissor head. Example 1, see reference to... Figure 1 The trimmer head includes a head holder 1, side blade assembly 2, and center blade assembly 3. Both side blade assembly 2 and center blade assembly 3 are mounted on the head holder 1 and arranged at intervals. Side blade assembly 2 is suitable for trimming hair located on the side of the head holder 1, while center blade assembly 3 is suitable for shaving the hair after it has been trimmed by side blade assembly 2. This creates a double trimming effect, resulting in a cleaner hair removal.

[0029] Reference Figures 1 to 3 A movable tool holder assembly 11 is slidably mounted on the tool head holder 1. The movable tool holder assembly 11 can be connected to a driving component, and under the action of the driving component, the movable tool holder assembly 11 can perform directional reciprocating motion relative to the tool head holder 1. The movable tool holder assembly 11 includes a sliding frame 12, a side movable tool holder 13, and a middle movable tool holder 14. The sliding frame 12 is slidably mounted on the tool head holder 1 and is adapted to be connected to the driving component. The side movable tool holder 13 and the middle movable tool holder 14 are both located on the side of the sliding frame 12 near the top of the tool head holder 1, and both the side movable tool holder 13 and the middle movable tool holder 14 are connected to the sliding frame 12, so that when the sliding frame 12 moves, it can drive the side movable tool holder 13 and the middle movable tool holder 14 to move synchronously.

[0030] Two linkage plates 131 are symmetrically spaced at the bottom of the side moving tool holder 13. The two linkage plates 131 have the same structure. The following description uses the structure of one linkage plate 131 as an example. The side of the linkage plate 131 closest to the side moving tool holder is integrally formed and has two clamping plates 132 spaced apart. The side moving tool holder 13 is interference-fitted between the two clamping plates 132. The side of the linkage plate 131 perpendicular to the clamping plates 132 (i.e., the side where the two linkage plates 131 are close to each other) is integrally formed with a linkage support leg 133. One side of the linkage support leg 133 extends toward the side moving tool holder 13 and is inserted into the side moving tool holder 13; the other side extends away from the side moving tool holder 13 and cooperates with the sliding frame 12.

[0031] A drive column is fused to one side of the sliding frame 12 near the top of the cutter head holder 11. The drive column is inserted between two linkage legs 133 on the two linkage plates 131. When the drive column moves synchronously with the sliding frame 12, since one end of the linkage leg 133 is inserted into the side moving cutter holder 13, the side moving cutter holder 13 will move synchronously with the sliding frame 12 under the drive of the linkage leg 133. The intermediate moving cutter holder 14 is located in the middle of the side moving cutter holder 13. Two support blocks are fixedly installed at intervals at the bottom of the intermediate moving cutter holder 14, and the drive column is located between the two support blocks, so that the intermediate moving cutter holder 14 can move synchronously with the sliding frame 12.

[0032] Reference Figure 2 and Figure 4 The side blade assembly 2 includes a fixed blade 21 and a side movable blade 22. The fixed blade 21 is located at the top of the head holder 1 and is welded to the head holder 1. The width of the fixed blade 21 is greater than the width of the head holder 1, so that the side wall of the fixed blade 21 protrudes from the head holder 1 in a cantilevered state. On the side wall of the fixed blade 21 that protrudes from the head holder 1, a plurality of fixed cutting teeth 23 are spaced apart along the length direction of the fixed blade 21. The side movable blade 22 is located on the side of the fixed blade 21 near the side movable blade holder 13 and is welded to the side movable blade holder 13 to achieve synchronous sliding with the side movable blade holder. On the side of the side movable blade 22 near the fixed cutting teeth 23, a plurality of moving cutting teeth 24 are spaced apart along the length direction of the side movable blade 22. When the side movable blade 22 reciprocates, it can cooperate with the fixed cutting teeth 23 to trim the hair.

[0033] Combination Figure 4 Reference Figure 5 and Figure 6 The multiple fixed blade teeth 23 have the same structure; the following description uses the structure of one fixed blade tooth 23 as an example. The end of the fixed blade tooth 23 (i.e., the end of the fixed blade tooth 23 away from the fixed blade 21) is bent towards the side of the moving blade tooth 24, forming a protective hook 25. The moving blade tooth 24 is located on the side of the protective hook 25 near the fixed blade 21, thus protecting the moving blade tooth 24 and preventing it from easily touching and scratching the skin during hair trimming. Specifically, a protective gap exists between the protective hook 25 and the moving blade tooth 24. The length of the protective hook 25 from the end away from the fixed blade tooth 23 to the side of the fixed blade 21 near the moving blade 22 is greater than the thickness of the end of the moving blade tooth 24. Furthermore, the end of the fixed blade tooth 23 has a rounded surface, making the protective hook 25 a rounded hook. The rounded surface and the protective hook 25 allow the end of the fixed blade tooth 23 to be relatively thick, and it moves smoothly across the skin surface, making it less likely to puncture the skin.

[0034] Combination Figure 2 Reference Figure 4 and Figure 5 The intermediate blade assembly 3 includes a fixed blade net 31 and an intermediate moving blade 32. The fixed blade net 31 is fixedly connected to the blade holder 1. The intermediate moving blade 32 is located on the side of the fixed blade net 31 close to the intermediate moving blade holder 14, and the intermediate moving blade 32 is fixedly connected to the intermediate moving blade holder 14 to achieve synchronous sliding with the intermediate moving blade holder 14, thereby cooperating with the fixed blade net 31 to trim hair.

[0035] The fixed blade 21 has a through hole at the center of its top, and a fixed blade mesh 31 is located within the through hole, with its top surface higher than the top of the fixed blade 21. This design allows the fixed blade mesh 31 to protect the skin while enabling the moving blade 32 to fit more closely to the skin, resulting in a cleaner hair trimming. Additionally, it ensures a larger contact area between the fixed blade 21 and the head holder 1, improving the stability of the connection between them.

[0036] A shaped spring 15 is installed on the side of the sliding frame 12 near the side moving blade holder 13. The shaped spring 15 will drive the side moving blade 22 to abut against the fixed blade 21, and drive the middle moving blade 32 to abut against the fixed blade net 31, thereby improving the trimming effect.

[0037] Combination Figure 2 Reference Figure 4 and Figure 5 Specifically, the irregularly shaped spring 15 includes a base plate spring 16, a first bent spring 17, and a second bent spring 18. Four first bent springs 17 are symmetrically arranged at intervals on opposite sides of the base plate spring 16. All four first bent springs 17 are integrally bent with the base plate spring 16 and are arranged at an angle. The ends of the four first bent springs 17 away from the base plate spring 16 abut against the side of the side movable blade holder 13 opposite to the side fixed blade 21, thereby driving the side movable blade 22 to press against the fixed blade 21. Two second bending springs 18 are symmetrically arranged on opposite sides of the substrate spring 16. Both second bending springs 18 are integrally bent with the substrate spring 16 and are inclined. The ends of the two second bending springs 18 away from the substrate spring 16 abut against the side of the intermediate moving blade holder 14 away from the fixed blade mesh 31, thereby driving the intermediate moving blade 32 to press against the fixed blade mesh 31.

[0038] The sliding frame 12 is provided with at least two positioning posts at intervals and fixed on one side near the substrate spring 16. The substrate spring 16 is provided with positioning holes at intervals equal to the number of positioning posts. The multiple positioning posts are respectively inserted into the corresponding positioning holes. Thus, when the sliding frame 12 moves, the irregular spring 15 can move synchronously with the sliding frame 12, the side moving tool holder 13 and the middle moving tool holder 14, ensuring the stability of the irregular spring 15 after applying elastic force to the side moving tool holder 13 and the middle moving tool holder 14.

[0039] The implementation principle of a trimmer tip according to an embodiment of this application is as follows: the protective hook 25 can cover and isolate the end of the moving blade 24, making the fixed blade 23 fit the skin more closely; and the end of the fixed blade 23 is set as an arc surface, making the protective hook 25 an arc hook. Compared with the pointed end of the fixed blade 23, the arc surface and the protective hook 25 can make the end of the fixed blade 23 relatively thick, and move more smoothly on the skin surface, making it less likely to touch the skin and cause scratches or punctures, thereby making the hair shorter after being trimmed by the side blade assembly 2.

[0040] After the side blade assembly 2 trims the hair, the middle blade assembly 3 will trim the hair that has been shortened by the side blade assembly 2 again. The fixed blade net 31 allows the middle moving blade 32 to fit closer to the skin, resulting in a cleaner hair trim.

[0041] Example 2, refer to Figure 7 The difference between this embodiment and Embodiment 1 is that: two sets of intermediate blade groups 3 are arranged at intervals, and two through holes are opened. The two sets of intermediate blade groups 3 are located in the two through holes respectively. The two sets of intermediate blade groups 3 can form a multiple trimming effect, further improving the hair cleaning effect. In other embodiments, three or more sets of intermediate blade groups 3 can also be provided.

[0042] Secondly, another embodiment of the present invention provides a hair trimmer, which is equipped with the trimming head mentioned in the first aspect, so that the hair is trimmed more cleanly and the trimming head is less likely to cut the skin.

[0043] Similarly, the components included in the "components," "mechanisms," and "devices" of this disclosure can also be flexibly combined. They can be modularly produced according to actual needs and assembled as an independent module; or they can be assembled separately to form a module in this device. The division of the above-mentioned components in this disclosure is only one embodiment for ease of reading and is not intended to limit the scope of protection of this disclosure. Any technical solution that includes the above-mentioned components and has the same function should be understood as an equivalent technical solution of this disclosure.

[0044] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0045] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0047] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0048] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to another component," it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in conventional technologies and will not be elaborated upon here.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The above embodiments are merely illustrative of several implementation methods of this disclosure, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this disclosure, and these modifications and improvements all fall within the protection scope of this disclosure.

Claims

1. A trimmer blade, characterized in that: The device includes a blade holder (1), a side blade assembly (2) mounted on the blade holder (1), and a middle blade assembly (3). The side blade assembly (2) is adapted to trim hair located on the side of the blade holder (1), and the middle blade assembly (3) is adapted to shave the hair after it has been trimmed by the side blade assembly (2). The side blade assembly (2) includes a fixed blade (21) and a side movable blade (22). The fixed blade (21) is fixedly connected to the blade holder (1), and the fixed blade (21) has... The outer side wall is provided with a plurality of fixed cutting teeth (23) spaced apart. The side moving blade (22) is located on one side of the fixed blade (21) and is slidably connected to the blade holder (1). The side moving blade (22) is provided with a plurality of moving cutting teeth (24) spaced apart on the side near the fixed cutting teeth (23). The end of the fixed cutting teeth (23) is bent with a protective hook (25) suitable for protecting the moving cutting teeth (24). The moving cutting teeth (24) are located on the side of the protective hook (25) near the fixed blade (21).

2. The trimmer blade according to claim 1, characterized in that: The end of the fixed cutter tooth (23) is provided with an arc surface.

3. The trimmer blade according to claim 1, characterized in that: There is a protective gap between the protective hook (25) and the moving blade tooth (24).

4. The trimmer blade according to claim 1, characterized in that: The length of the protective hook (25) from the end away from the fixed blade tooth (23) to the side of the fixed blade (21) near the side moving blade (22) is greater than the thickness of the end of the moving blade tooth (24).

5. The trimmer head according to claim 1, characterized in that: The intermediate blade group (3) is provided in multiple groups at intervals.

6. The trimmer blade according to any one of claims 1-5, characterized in that: The intermediate blade assembly (3) is arranged at intervals with the fixed blade teeth (23). The intermediate blade assembly (3) includes a fixed blade net (31) and an intermediate moving blade (32). The fixed blade net (31) is fixedly connected to the cutter head holder (1). The intermediate moving blade (32) is located on the side of the fixed blade net (31) close to the cutter head holder (1) and is slidably connected to the cutter head holder (1).

7. The trimmer blade according to claim 6, characterized in that: The cutter head holder (1) is provided with a moving cutter holder assembly (11), which includes a sliding frame (12), a side moving cutter holder (13), and a middle moving cutter holder (14). The sliding frame (12) is adapted to be connected to a drive component and slides back and forth on the cutter head holder (1). The side moving cutter holder (13) and the middle moving cutter holder (14) are both connected to the sliding frame (12) and slide synchronously. The side moving blade (22) is fixedly connected to the side moving cutter holder (13), and the middle moving blade (32) is fixedly connected to the middle moving cutter holder (14).

8. The trimmer head according to claim 7, characterized in that: The sliding frame (12) is provided with irregularly shaped spring pieces (15), which include a base plate spring piece (16), a first bent spring piece (17), and a second bent spring piece (18). The base plate spring piece (16) is connected to the sliding frame (12). One end of the first bent spring piece (17) is fixedly connected to the base plate spring piece (16), and the other end abuts against the side moving blade holder (13) to drive the side moving blade (22) to abut against the fixed blade (21). One end of the second bent spring piece (18) is fixedly connected to the base plate spring piece (16), and the other end abuts against the middle moving blade holder (14) to drive the middle moving blade (32) to abut against the fixed blade net (31).

9. The trimmer blade according to claim 7, characterized in that: The side moving tool holder (13) is provided with a linkage plate (131) at the bottom. The linkage plate (131) is fixed on one side near the side moving tool holder and is provided with two clamping plates (132) at intervals. The side moving tool holder (13) is interference-fitted between the two clamping plates (132). The linkage plate (131) is fixed with a linkage leg (133) on one side perpendicular to the clamping plates (132). One side of the linkage leg (133) extends toward the side moving tool holder (13) and is inserted into the side moving tool holder (13); the other side extends away from the side moving tool holder (13) and cooperates with the sliding frame (12).

10. A hair trimmer, characterized in that, Includes the trimmer blade as described in any one of claims 1-9.

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