Hair trimming cutter head
By designing the static knife mesh as a circular concave arc surface and distributed along the arc array, the problem that the rotating knife cannot fit the head contour is solved, uniform cutting and stability are achieved, and the hair trimming effect and user experience are improved.
Patent Information
- Application Number
- CN202422543873.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-10-21
AI Technical Summary
The plane layout of the existing rotating knife cannot effectively fit the user's head contour, resulting in uneven hair cutting, especially when bald head styling, which will affect the overall styling effect and user experience.
The static knife net is designed to have a circular concave arc surface, distributed along the arc line, forming a spherical crown working space, and the static knife net fits with the scalp to ensure uniform stress and stable cutting.
It improves the accuracy and stability of hair trimming, enhances the fit with the scalp, reduces the feeling of pressure, and improves the overall trimming effect and user experience.
Smart Images
Figure CN223278035U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hair cutting equipment, in particular to a hair trimming head. Background Art
[0002] In the prior art, the blade mesh on the rotary blade and the blade holder are usually arranged on a plane. Since the shape of the human head is mostly irregular arc, the rotary blade arranged on a plane cannot better fit the user's head contour, resulting in poor cutting effect. Especially when trimming a bald head, uneven hair cutting, local residual hair or excessive shaving often occur, affecting the overall styling effect and user experience. Summary of the Invention
[0003] In view of this, the utility model provides a hair trimming head.
[0004] To achieve the above objectives, the present invention provides the following technical solutions:
[0005] A hair trimming shearing head comprises a base, a plurality of stationary blade seats arranged in a circular array along the base, a stationary blade net installed in each stationary blade seat, and a movable blade placed below the stationary blade net and cooperating with the stationary blade net to cut hair. The stationary blade net is circular in shape and its outer surface is an inwardly concave arc surface. Each stationary blade net has at least one working direction inclined toward the center of the circular array of stationary blade seats. From any angle of the circular array, the arc line of the inwardly concave arc surface of each stationary blade net coincides with a preset circular arc line, so that each stationary blade net combination forms a spherical crown-shaped working space.
[0006] Preferably, the stationary knife seats are provided with at least three in a circular array and an integrated structure, and are detachably connected and fixed to the base; the outer surface of each stationary knife seat is inclined toward the center of the circular array, and the arc line of the concave arc surface of the stationary knife net installed in each stationary knife seat coincides with a standard circular arc line, so that each stationary knife net combination forms a spherical crown working space.
[0007] Preferably, at least three static knife nets are provided, and the static knife nets can be floatingly mounted on the static knife seat. The static knife nets have a highest point and a lowest point connected to the circular arc line, and the highest point and the lowest point are on the same arc line of the circular arc line.
[0008] Preferably, the diameter of the arc line is greater than or equal to 30 mm.
[0009] Preferably, the static knife net has an inner net portion and at least one outer net portion, the outer net portion is arranged on the outer ring side of the inner net portion, the arc surface is tangent to the side of the outer net portion and the inner net portion away from the center of the static knife net, and there is an annular connecting portion between the outer net portion and the inner net portion, and the outer net portion and the inner net portion are connected through the annular connecting portion.
[0010] Preferably, the distance between the highest point and the lowest point of the static knife net is greater than or equal to 0.2 mm.
[0011] Preferably, the arc surface is formed on the outer surface of the static knife net, and the inner surface of the static knife net is arranged in an arc-shaped structure corresponding to the arc surface.
[0012] Preferably, the arc surface is formed on the outer surface of the static knife net, and the inner surface of the static knife net is arranged in a planar structure.
[0013] The beneficial effect of this utility model lies in that, by distributing the static blade nets in a circular array along a circular arc, the surfaces of the static blade nets are evenly covered and closely adhere to the circular arc after installation, ensuring that the force applied to each blade net during rotation is balanced, thereby improving cutting accuracy and stability. Furthermore, the location of each static blade net along the circular arc creates an arc-shaped structure between the static blade nets that conforms to the shape of the human head, thereby improving the fit with the scalp and being more suitable for trimming bald heads. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0015] Attachment Figure 1 This is a schematic diagram of the structure of the utility model;
[0016] Attachment Figure 2 A cross-sectional view of the utility model;
[0017] Attachment Figure 3 Schematic diagram of the knife net structure;
[0018] Attachment Figure 4 This is the cutaway view of the knife net;
[0019] Attachment Figure 5 It is a structural diagram of another embodiment. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0021] The present invention will be further described below with reference to the accompanying drawings.
[0022] The utility model provides the following technical solutions:
[0023] As attached Figure 1-5 As shown, the utility model discloses a hair trimming shearing head, comprising a base 9, a plurality of stationary blade seats 1 arranged in a circular array along the base 9, a stationary blade net 2 being installed in each stationary blade seat 1, and a movable blade 10 being placed below the stationary blade net 2 and cooperating with the stationary blade net 2 to cut hair, the stationary blade net 2 being circular in shape and its outer surface being an inwardly concave arc surface 5, each stationary blade net 2 having at least one working direction inclined toward the center of the circular array of the stationary blade seat 1, and from any angle of the annular array, the arc line of the inwardly concave arc surface 5 of each stationary blade net 2 respectively coincides with the preset circular arc line 4, so that each stationary blade net 2 is combined to form a spherical crown-shaped working space. Specifically, in this design, since the arc line 4 is centered on the central axis 3 of the fulcrum of the static blade holder 1, the arc line 4 has a concave arc structure. By distributing the static blade nets 2 in a ring array on the arc line 4, after the static blade nets 2 are installed, the surface of the static blade nets 2 can be evenly covered and closely attached to the arc line 4, ensuring that the force on each static blade net 2 during rotation is balanced, thereby improving the accuracy and stability of cutting. In addition, each static blade net 2 is located on the arc line 4, so that the static blade nets 2 form an arc structure that can fit the human head shape, thereby improving the fit with the scalp and being more suitable for trimming bald heads.
[0024] Furthermore, the static blade net 2 has a curved surface 5, which is concave toward the center of the static blade net 2, and the curved surface 5 coincides with the arc line 4. Specifically, in this embodiment, the curved surface 5 of the static blade net 2 is designed to fit perfectly with the arc line 4, further enhancing the comfort and safety of the overall device. This concave arc structure can effectively reduce the pressure on the scalp when the blade rotates at high speed for cutting, avoiding discomfort or even injury caused by excessive local pressure. At the same time, the curved surface 5 is a continuous and regular curved surface, which can better contact the user's skin and improve shaving efficiency.
[0025] Reference Attachment Figure 1-2 As shown, in one embodiment, the base 9 and the stationary blade holder 1 are an integrated structure, and the integrated structure of the stationary blade holder 1 and the base 9 can provide better stability.
[0026] In one embodiment, refer to the attached Figure 5As shown, the static knife seat 1 is provided with at least three static knife seats 1 in an annular array and an integral structure, and is detachably connected and fixed to the base; the base 9 is provided with slots 11 corresponding to the number of static knife seats 1, and each static knife seat 1 is fixed in the corresponding slot 11. The outer surface of each static knife seat 1 is tilted toward the center of the annular array, and the arc line of the concave arc surface of the static knife net 2 installed in each static knife seat 1 coincides with a standard circular arc line, so that each static knife net 2 is combined to form a spherical crown working space. Specifically, in this embodiment, a detachable split structure is provided between the static knife seat 1 and the base 9, which can realize rapid replacement and maintenance. The outer surface of each static knife seat 1 is designed to be an inclined structure to ensure that when the static knife net 2 is installed, the concave arc surface 5 of each static knife net 2 can perfectly fit with the preset circular arc line 4 to form a continuous spherical crown working space. This design not only improves the installation accuracy of the static knife net 2, but also during use, since the static knife net 2 is subjected to uniform force, it can effectively avoid uneven wear or damage caused by excessive local force.
[0027] Furthermore, at least three static knife nets 2 are provided, and the static knife nets 2 can be floatingly mounted on the static knife seat 1. The static knife net 2 has a highest point and a lowest point connected to the circular arc 4, and the highest point and the lowest point are on the same arc line of the circular arc 4. Specifically, in this embodiment, the floating installation design of the static knife net 2 gives it extremely high flexibility and adaptability. This design not only allows the static knife net 2 to float slightly up and down when subjected to external forces (such as slight pressure changes caused by uneven scalp) to adjust the angle to maintain a constant contact pressure with the scalp, thereby avoiding uneven cutting or skin discomfort caused by being too tight or too loose. At the same time, the highest point and the lowest point of the static knife net 2 are both on the same arc line of the circular arc 4. This careful layout ensures that the rotation trajectory of all static knife nets 2 remains consistent during rotation, further improving the uniformity and overall efficiency of cutting.
[0028] Furthermore, the diameter of the arc line 4 is greater than or equal to 30 mm. Specifically, in this embodiment, in order to better fit the blade net to the head, the diameter of the arc line 4 is set to be greater than or equal to 30 mm. This size selection is based on ergonomic considerations to ensure that even users with larger heads can enjoy a comfortable shaving experience. Preferably, the diameter of the arc line 4 is 200 mm ± 100 mm. This larger diameter design not only expands the contact area between the static blade net 2 and the scalp, making the force more evenly dispersed and reducing local pressure, but also enhances the adaptability of the hair trimming head to different head shapes, whether it is a flat or slightly convex head, a good fitting effect can be obtained.
[0029] Furthermore, the static blade net 2 comprises an inner net portion 6 and at least one outer net portion 7. The outer net portion 7 is disposed on the outer annular side of the inner net portion 6. The arcuate surface 5 is tangent to the outer net portion 7 and the inner net portion away from the center of the static blade net 2. An annular connecting portion 8 is provided between the outer net portion 7 and the inner net portion 6, connecting the outer net portion 7 and the inner net portion 6 via the annular connecting portion 8. Specifically, in this embodiment, by providing a structure with multiple circles of blade nets, each circle of blade nets being located on the arc line 4, this structural design not only enriches the layering of the static blade net 2 but also significantly enhances the refinement and comprehensiveness of the cutting effect. The inner net portion 6, as the core component, directly contacts the scalp. Its fine mesh design effectively captures and cuts short hairs, ensuring precise trimming. The outer net portion 7 surrounds the outer side of the inner net portion 6. Its mesh size can be appropriately increased to capture and process longer or coarser hairs, creating a progressive cutting effect from the inside out. The annular connecting portion 8 acts as a bridge between the inner mesh portion 6 and the outer mesh portion 7, not only stabilizing the connection between the two but also ensuring the integrity and strength of the entire blade mesh structure. Its design takes into account force distribution during use, ensuring that all components can work together to address various scalp shapes and hair conditions during high-speed rotation and cutting. Furthermore, the multi-ring blade mesh design provides improved heat dissipation. During the high-speed rotation and cutting process of the blades, a certain amount of heat is generated. The gaps between the multiple rings of blade mesh effectively promote air circulation, accelerating heat dissipation and preventing overheating and scalp discomfort.
[0030] Furthermore, the spacing between the highest and lowest points of the static blade net 2 is greater than or equal to 0.2 mm. Specifically, in this embodiment, the spacing between the highest and lowest points is set to be greater than or equal to 0.2 mm. This spacing not only provides sufficient space for the blade net to float on the static blade holder, ensuring flexible adjustment to various head shapes and scalp curves to adapt to various complex situations, but also avoids problems such as blade net jamming or excessive friction caused by too small a spacing.
[0031] Furthermore, the curved surface 5 is formed on the outer surface of the static blade net 2, and the inner surface of the static blade net 2 is arranged in an arc-shaped structure corresponding to the curved surface 5. Specifically, in this embodiment, when the inner surface of the static blade net 2 is arranged in an arc-shaped structure corresponding to the curved surface, this design enhances the overall structural strength and stability of the static blade net 2. The static blade net 2, with both inner and outer surfaces having curved structures, can effectively disperse the stress generated by the blade cutting when rotating at high speeds, reducing vibration and noise, thereby improving the user experience. At the same time, this double-arc design also allows the static blade net 2 to provide more uniform pressure distribution when contacting the scalp, avoiding scalp discomfort caused by excessive pressure at a single point. In addition, the curved inner surface is also easy to clean and maintain, because any hair or dandruff attached to the blade net can be more easily flushed or removed, ensuring the hygiene of the hair trimming head. In addition, the curvature of the inner surface and the curvature of the outer surface can be designed to have the same curvature structure, which is conducive to consistent shaving height. In other embodiments, the curvature of the inner surface and the curvature of the outer surface can be designed to have different curvature structures to reduce production difficulty.
[0032] Furthermore, the curved surface 5 is formed on the outer surface of the static blade net 2, while the inner surface of the static blade net 2 is a planar structure. Specifically, in this embodiment, the curved surface 5 is still formed on the outer surface of the static blade net 2 to maintain its contact with the scalp and shaving efficiency, while the inner surface of the static blade net 2 adopts a planar structure. The planar secondary inner surface design simplifies the manufacturing process of the static blade net 2 and reduces production costs.
[0033] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A hair trimming scissor head, comprising a base (9), a plurality of stationary blade seats (1) arranged in a circular array along the base (9), a stationary blade net (2) installed in each stationary blade seat (1), and a movable blade (11) disposed below the stationary blade net (2) and cooperating with the stationary blade net (2) to cut hair, characterized in that: The static knife net (2) is circular in shape and its outer surface is an inwardly concave arc surface (5). Each static knife net (2) has at least one working direction inclined toward the center of the annular array of the static knife seat (1). When viewed from any angle of the annular array, the arc line of the inwardly concave arc surface (5) of each static knife net (2) coincides with the preset circular arc line (4), so that each static knife net (2) is combined to form a spherical crown-shaped working space.
2. The hair trimming head according to claim 1, characterized in that: The static knife seat (1) is provided with at least three ring-shaped arrays and an integrated structure, and is detachably connected and fixed to the base (9); the outer surface of each static knife seat (1) is inclined toward the center of the ring array, and the arc line of the concave arc surface (5) of the static knife net (2) installed in each static knife seat (1) coincides with a standard circular arc line, so that each static knife net (2) is combined to form a spherical crown working space.
3. The hair trimming head according to claim 1, characterized in that: At least three static knife nets (2) are provided, and the static knife nets (2) are floatably mounted on the static knife seat (1). The static knife nets (2) have a highest point and a lowest point connected to the circular arc (4), and the highest point and the lowest point are located on the same arc line of the circular arc (4).
4. The hair trimming head according to claim 1, characterized in that: The diameter of the arc line (4) is greater than or equal to 30 mm.
5. The hair trimming head according to claim 1, characterized in that: The static knife net (2) has an inner net portion (6) and at least one outer net portion (7), the outer net portion (7) is arranged on the outer ring side of the inner net portion (6), the inner concave arc surface (5) is tangent to the outer net portion (7) and the inner net portion (6) on a side away from the center of the static knife net (2), an annular connecting portion (8) is provided between the outer net portion (7) and the inner net portion (6), and the outer net portion (7) and the inner net portion (6) are connected via the annular connecting portion (8).
6. The hair trimming head according to claim 1, characterized in that: The distance between the highest point and the lowest point of the static knife net (2) is greater than or equal to 0.2 mm.
7. The hair trimming head according to claim 1, characterized in that: The arc surface (5) is formed on the outer surface of the static knife net (2), and the inner surface of the static knife net (2) is arranged in an arc-shaped structure corresponding to the arc surface (5).
8. The hair trimming head according to claim 1, characterized in that: The arc surface (5) is formed on the outer surface of the static knife net (2), and the inner surface of the static knife net (2) is arranged in a planar structure.