Moving cutter, cutter head module, cutter head device and hair trimmer

Abstract

The utility model provides a moving cutter, a cutter head module, a cutter head device and a hair trimmer, the moving cutter is used for being matched with a static cutter and can reciprocate relative to the static cutter, the static cutter is arranged on the outer side of the moving cutter, the moving cutter comprises an arc-shaped shearing part, two transition parts and two fixing parts, the outer side face of the arc-shaped shearing part is used for being attached to the inner side face of the static cutter, and the two transition parts are arranged on the outer side face of the arc-shaped shearing part. Two opposite ends of each transition part are respectively connected with one end part of the arc-shaped shearing part and one fixed part, the distance between the two opposite ends of the arc-shaped shearing part is greater than the distance between the two fixed parts, and the central angle of the arc-shaped shearing part is 135-160 degrees; and / or the arc length of the arc-shaped shearing part is 5mm to 10mm. By arranging the movable cutter with the structure, the central angle of the arc-shaped shearing part is 135-160 degrees; and / or the arc length of the arc-shaped shearing part is 5mm-10mm, so that the fitting area between the arc-shaped shearing part and the static cutter can be increased, the shearing area is increased, and the shearing efficiency is improved.

Description

Technical Field

[0001] This application belongs to the field of hair removal technology, specifically involving moving blades, blade modules, blade devices, and hair trimmers. Background Technology

[0002] Hair removal typically requires the coordinated action of moving and stationary blades to cut the hair. Specifically, the stationary blade remains stationary, while the moving blade partially adheres to it and reciprocates relative to it, thus cutting the hair. However, currently, the contact area between the moving and stationary blades is relatively small, resulting in a small cutting area. Utility Model Content

[0003] In view of this, the first aspect of this application provides a movable blade, which is used to cooperate with a stationary blade and is capable of reciprocating relative to the stationary blade. The stationary blade is disposed on the outside of the movable blade. The movable blade includes an arc-shaped shearing part, two transition parts, and two fixing parts. The outer surface of the arc-shaped shearing part is used to fit against the inner surface of the stationary blade. Each of the transition parts is connected to one end of the arc-shaped shearing part and one of the fixing parts at opposite ends. The distance between the opposite ends of the arc-shaped shearing part is greater than the distance between the two fixing parts. The central angle of the arc-shaped shearing part is 135°-160°; and / or, the arc length of the arc-shaped shearing part is 5mm-10mm.

[0004] Along the reciprocating motion direction of the moving blade, the arc-shaped shearing part includes a plurality of first shearing blades spaced apart, and each transition part includes a first sub-transition part and a second sub-transition part. One end of the first sub-transition part is connected to the end of the arc-shaped shearing part, the other end of the first sub-transition part is connected to one end of the second sub-transition part, and the other end of the second sub-transition part is connected to the fixing part.

[0005] Each of the first sub-transition portions protrudes away from the other first sub-transition portion, and each of the second sub-transition portions protrudes towards the other second sub-transition portion. A portion of the outer side surface of the first sub-transition portion is used to fit against the inner side surface of the stationary blade. Along the reciprocating motion direction of the moving blade, the first sub-transition portion used to fit against the inner side surface of the stationary blade includes a plurality of second shearing blades spaced apart, and each second shearing blade is connected to a first shearing blade.

[0006] Both the first sub-transition portion and the second sub-transition portion are arc-shaped.

[0007] The central angle of the first sub-transition section is 70°-100°, and the central angle of the second sub-transition section is 55°-85°.

[0008] Wherein, the central angle of the outer surface of the first sub-transition portion is greater than the central angle of the inner surface of the first sub-transition portion, and the central angle of the outer surface of the second sub-transition portion is greater than the central angle of the inner surface of the second sub-transition portion.

[0009] The second shearing blade extends to the apex of the first sub-transition portion, and the maximum distance between the two second shearing blades disposed opposite each other in the two first sub-transition portions is 6mm-7mm.

[0010] The second shearing blade extends to the apex of the first sub-transition portion. The first shearing blade and the second shearing blade constitute the shearing blade of the moving blade. Along the arrangement direction of the plurality of shearing blades, the width of the shearing blade gradually increases from the middle to both ends of its bending direction. The width of the middle part of the shearing blade is 0.18mm-0.6mm, and the width of the end of the shearing blade is 0.28mm-0.8mm.

[0011] The stationary blade has multiple mesh holes arranged in an array, and along the arrangement direction of the multiple shearing blades, the maximum width of the shearing blades is smaller than the width of the mesh holes.

[0012] The stationary blade has multiple meshes arranged in an array, and a shearing gap is formed between two adjacent shearing blades. Along the arrangement direction of the multiple shearing blades, the width of the shearing gap gradually decreases from the middle to both ends of its bending direction. The minimum value of the shearing gap is greater than the sum of the width of one mesh and the distance between two adjacent meshes.

[0013] The minimum value of the shear gap is 0.3mm-1mm, and the maximum value of the shear gap is 0.5mm-1.5mm.

[0014] The shearing blade includes a bonding surface, a first shearing surface, and a second shearing surface. The bonding surface is used to bond to the inner side of the stationary blade. The first shearing surface is bent and connected to the bonding surface, and the second shearing surface is bent and connected to the first shearing surface. The angle between the bonding surface and the first shearing surface is 30°-50°, and the angle between the first shearing surface and the second shearing surface is 130°-140°.

[0015] The top surface of the two fixing parts near the arc-shaped shearing part is lower than the end side surface of the arc-shaped shearing part.

[0016] Wherein, the moving blade satisfies at least one of the following conditions:

[0017] The wall thickness of the moving blade is 0.2mm-0.8mm;

[0018] The distance between the outer surface of each of the fixed parts and the outermost end point of the moving blade is 0.4mm-0.8mm;

[0019] The distance between the two fixing parts is 3.5mm-5.5mm.

[0020] The second aspect of this application provides a cutter head module, which includes a stationary cutter assembly and a moving cutter assembly. The stationary cutter assembly is disposed outside the moving cutter assembly. The moving cutter assembly includes a base and a moving cutter as provided in the first aspect of this application. The fixing part of the moving cutter is fixed to the base, and the base is used to connect the transmission component of the drive module.

[0021] The base has two support parts on opposite sides, and each fixing part abuts against one of the support parts away from the bottom surface of the arc-shaped shearing part.

[0022] The support portion has a protrusion on the side opposite to the base, and the protrusion can abut against the inner side of the stationary blade assembly.

[0023] The stationary blade assembly includes a stationary blade and a first clamping member and a second clamping member disposed on opposite sides of the stationary blade. The first clamping member is closer to the moving blade than the second clamping member. The blade module satisfies at least one of the following conditions:

[0024] The distance between the outer side of the fixing part and the inner side of the first clamping member is 0.1mm-1mm;

[0025] The distance between the outer side of the protrusion and the inner side of the first clamping member is 0.1mm-1mm;

[0026] The minimum distance between the first clamping member and the transition portion of the moving blade is 0.2mm-3mm.

[0027] The stationary blade assembly includes a stationary blade, which includes a middle portion and an edge portion along its bending direction. The middle portion is provided with a plurality of mesh holes arranged in an array, and the edge portion is used to be disposed within the housing of the blade head device so that at least a portion of the middle portion protrudes from the housing.

[0028] The stationary blade assembly includes a stationary blade with multiple mesh holes arranged in an array. Along the bending direction of the stationary blade, the mesh holes at the edge can extend beyond the edge of the shearing blade of the moving blade, or the mesh holes at the edge do not extend beyond the edge of the shearing blade of the moving blade.

[0029] Wherein, when the mesh at the edge can extend beyond the edge of the shearing blade of the moving blade, the middle portion extending beyond the edge of the shearing blade is also used to be disposed within the housing of the blade head device.

[0030] A third aspect of this application provides a cutting head device, the cutting head device including a housing and a cutting head module as provided in the second aspect of this application, the cutting head module being disposed on the housing.

[0031] The fourth aspect of this application provides a hair trimmer, which includes a main unit and a blade assembly as provided in the third aspect of this application. The main unit includes a housing and a drive module. The housing of the blade assembly is mounted on the housing. The transmission component of the drive module is connected to the moving blade assembly.

[0032] In related technologies, the moving blade typically includes an arc-shaped shearing section and two fixed sections. The two fixed sections connect the two ends of the arc-shaped shearing section, and when the shape of the stationary blade is fixed, the distance between the two fixed sections determines the central angle and arc length of the arc-shaped shearing section in order to fit the stationary blade. The moving blade, blade module, blade device, and hair trimmer provided in this application have a moving blade consisting of an arc-shaped shearing section, two transition sections, and two fixed sections. The fixed sections do not need to be directly connected to the arc-shaped shearing section; they can be indirectly connected through the transition sections. Therefore, when the distance between the two fixed sections is the same as the distance between the two fixed sections in related technologies, the arc-shaped shearing section in this embodiment can further extend along the bending direction, thereby increasing the contact area and shearing area between the moving blade and the stationary blade, thus improving shearing efficiency. Subsequently, only the transition sections are needed to connect the extended arc-shaped shearing section to the fixed sections. Specifically, in this embodiment, the central angle of the arc-shaped shearing portion is 135°-160°; and / or, the arc length of the arc-shaped shearing portion is 5mm-10mm, which is greater than the central angle and arc length of the arc-shaped shearing portion in related technologies.

[0033] In summary, by setting the moving blade of the above-mentioned structure, this application makes the central angle of the arc-shaped shearing part 135°-160°; and / or the arc length of the arc-shaped shearing part 5mm-10mm, which can increase the contact area between the arc-shaped shearing part and the stationary blade, thereby increasing the shearing area and thus improving the shearing efficiency. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments of this application will be described below.

[0035] Figure 1 This is a three-dimensional structural diagram of the moving blade in one embodiment of this application.

[0036] Figure 2 for Figure 1 The front view of the moving blade is shown.

[0037] Figure 3 This is a front view of a specific embodiment of this application when the moving blade and the stationary blade are engaged.

[0038] Figure 4 This is a front view of the moving and stationary tools in conjunction in the relevant technology.

[0039] Figure 5 for Figure 2 A magnified view of the moving part shown.

[0040] Figure 6 for Figure 1 A partial top view of the moving tool shown.

[0041] Figure 7 for Figure 3 The diagram shows a partial perspective view of the moving and stationary tools in operation.

[0042] Figure 8 This is a partial cross-sectional schematic diagram of the moving blade in one embodiment of this application.

[0043] Figure 9 for Figure 8 A magnified view of the moving part shown.

[0044] Figure 10 This is a three-dimensional structural diagram of the cutter head module in one embodiment of this application.

[0045] Figure 11 for Figure 10 The exploded view of the cutter head module shown.

[0046] Figure 12 for Figure 10 The diagram shows a cross-sectional view of the cutter head module.

[0047] Figure 13 This is a three-dimensional structural diagram of the base in one embodiment of this application.

[0048] Figure 14 for Figure 10 A magnified view of a portion of the cutter head module shown.

[0049] Figure 15 for Figure 12 The diagram shows a cross-sectional view of the cutter head module when it is fitted with the housing of the cutter head device.

[0050] Figure 16 This is a three-dimensional structural diagram of the cutter head device in one embodiment of this application.

[0051] Figure 17 for Figure 16 An exploded view of the cutting head assembly shown.

[0052] Figure 18 This is a three-dimensional structural diagram of a hair trimmer according to one embodiment of this application.

[0053] Figure 19 for Figure 18 An exploded view of one embodiment of the hair trimmer shown.

[0054] Figure 20 for Figure 19 An exploded view of another embodiment of the hair trimmer shown.

[0055] Label Explanation:

[0056] Moving blade-1, stationary blade-2, blade head module-3, blade head device-4, long-beard blade head module-4a, hair trimmer-5, arc-shaped cutting part-10, cutting blade-10a, first cutting blade-11, cutting gap-12, contact surface-13, first cutting surface-14, second cutting surface-15, transition part-20, first sub-transition part-21, second cutting blade-211, third cutting blade-212, second sub-transition part-22, fixing part-30, mesh-40, middle part-41, edge part-42, stationary blade assembly-50, first clamping member-51, second clamping member-52, moving blade assembly-60, base-61, support part-611, protrusion-612, mounting cover-70, support platform-71, housing-80, main unit-90, outer shell-91, drive module-92, transmission component-920. Detailed Implementation

[0057] The following are preferred embodiments of this application. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

[0058] Therefore, in order to solve the above problems, this application provides a cutting method. Please refer to it as well. Figures 1-4 , Figure 1 This is a three-dimensional structural diagram of the moving blade in one embodiment of this application. Figure 2 for Figure 1 The front view of the moving blade is shown. Figure 3 This is a front view of a specific embodiment of this application when the moving blade and the stationary blade are engaged. Figure 4 This is a front view of a moving blade and a stationary blade in related technologies. The moving blade 1 provided in this embodiment is used to cooperate with a stationary blade 2 and can reciprocate relative to the stationary blade 2. The stationary blade 2 is located outside the moving blade 1. The moving blade 1 includes an arc-shaped shearing portion 10, two transition portions 20, and two fixing portions 30. The outer surface of the arc-shaped shearing portion 10 is used to fit against the inner surface of the stationary blade 2. Each transition portion 20 has opposite ends connected to one end of the arc-shaped shearing portion 10 and one fixing portion 30, respectively. The distance between the opposite ends of the arc-shaped shearing portion 10 is greater than the distance between the two fixing portions 30. The central angle of the arc-shaped shearing portion 10 (e.g., ...) is... Figure 2 The arc length (as shown in θ1) is 135°-160°; and / or, the arc length of the arc-shaped shear section 10 (as shown in θ1) is 135°-160°. Figure 2 The diameter of L1 and L2 (as shown in the figure) is 5mm-10mm.

[0059] The moving blade 1 is a key component that works in conjunction with the stationary blade 2 to cut hair. Typically, the stationary blade 2, which remains stationary, is fitted against the outside of the moving blade 1. The stationary blade 2 has multiple arrayed mesh openings 40 through which hair can pass. When the moving blade 1 reciprocates, the moving blade 1 and the stationary blade 2 work together to achieve a cutting effect, improving the hair cutting efficiency. Furthermore, due to the protection provided by the stationary blade 2, the moving blade 1 will not come into contact with the user's skin, preventing scratches.

[0060] In related technologies, the moving blade is typically U-shaped, such as Figure 4 As shown, the moving blade includes an arc-shaped shearing section and two fixed sections. The two fixed sections are connected to both ends of the arc-shaped shearing section. Only the arc-shaped shearing section is in contact with the stationary blade; the fixed sections are not in contact with the stationary blade. Furthermore, when the shape of the stationary blade is fixed, the distance between the two fixed sections determines the central angle and arc length of the arc-shaped shearing section in order to fit the stationary blade. For example, in related technologies, the central angle of the arc-shaped shearing section (e.g.) Figure 4 The angle ∠θ is 101.9°, and the arc length of the arc-shaped shear section is 4.5 mm.

[0061] In this embodiment, the moving blade 1 can be composed of an arc-shaped shearing part 10, two transition parts 20, and two fixing parts 30. The arc-shaped shearing part 10 is also used to fit against the stationary blade 2 to achieve the shearing action. Specifically, the outer surface of the arc-shaped shearing part 10 can fit against the inner surface of the stationary blade 2. The fixing parts 30 are then used to fix it to the base 61 to fix the moving blade 1.

[0062] In related technologies, the moving blade only includes an arc-shaped shearing section and two fixed sections, with the fixed sections directly connected to the ends of the arc-shaped shearing section. Therefore, the distance between the two opposite ends of the arc-shaped shearing section is equal to the distance between the two fixed sections. However, in this embodiment, the distance between the two opposite ends of the arc-shaped shearing section 10 can be greater than the distance between the two fixed sections 30. In other words, the arc-shaped shearing section 10 can be further extended along its bending direction, thereby increasing the distance between the two opposite ends of the arc-shaped shearing section 10, making it greater than the distance between the two fixed sections 30. By further extending the ends of the arc-shaped shearing section 10, the central angle and arc length of the arc-shaped shearing section 10 can be increased, thereby increasing the contact area between the arc-shaped shearing section 10 and the stationary blade 2, thus improving the shearing area and shearing sharpness, and ultimately improving the shearing efficiency.

[0063] Furthermore, due to the further extension of both ends of the arc-shaped shearing section 10, the fixing section 30 cannot be directly connected to the end of the arc-shaped shearing section 10. Therefore, the connection can be made through the transition section 20. Specifically, one end of one transition section 20 is connected to one end of the arc-shaped shearing section 10, the other end of one transition section 20 is connected to one fixing section 30, one end of another transition section 20 is connected to the other end of the arc-shaped shearing section 10, and the other end of another transition section 20 is connected to another fixing section 30. At this time, the cross-sectional shape of the moving blade 1 is no longer U-shaped, but similar to a mushroom shape.

[0064] Furthermore, in this embodiment, the central angle of the arc-shaped cutting section 10 can be 135°-160°; and / or, the arc length of the arc-shaped cutting section 10 can be 5mm-10mm. When the central angle and arc length of the arc-shaped cutting section 10 are too large, for example, the central angle of the arc-shaped cutting section 10 is greater than 160° and the arc length of the arc-shaped cutting section 10 is greater than 10mm, the arc-shaped cutting section 10 will be too long, increasing the friction area between the arc-shaped cutting section 10 and the stationary blade 2, causing the moving blade 1 and the stationary blade 2 to heat up, and also increasing the load on the drive module 92, resulting in increased noise. At the same time, the portion of the arc-shaped cutting section 10 with a central angle greater than 160° is located at both ends of the arc, and this portion is difficult to contact with the hair, which does not help or provides little help in further improving the cutting effect. Moreover, this portion is close to the housing 80 of the blade head device 4, and the experience of cutting hair using this portion is poor, so users usually use this portion less often or not at all.

[0065] When the central angle and arc length of the arc-shaped shearing part 10 are too small, for example, the central angle of the arc-shaped shearing part 10 is less than 135° and the arc length of the arc-shaped shearing part 10 is less than 5mm, the arc-shaped shearing part 10 will be too short, resulting in a small contact area and shearing area, which is comparable to the contact area of ​​a traditional U-shaped moving knife, and the purpose of increasing the shearing area cannot be achieved.

[0066] Therefore, by making the central angle of the arc-shaped shearing part 10 135°-160° and / or the arc length of the arc-shaped shearing part 10 5mm-10mm, this embodiment can increase the shearing area and ensure that the friction area between the arc-shaped shearing part 10 and the stationary blade 2 is not too high, the heat generation is not too severe, and the load is not excessively increased, thus achieving excellent overall performance.

[0067] In summary, by setting the moving blade 1 of the above-described structure, the central angle of the arc-shaped shearing part 10 is 135°-160°; and / or the arc length of the arc-shaped shearing part 10 is 5mm-10mm, which can increase the contact area between the arc-shaped shearing part 10 and the stationary blade 2, thereby increasing the shearing area and thus improving the shearing efficiency.

[0068] Optionally, the central angle of the arc-shaped shearing portion 10 is 135°, 140°, 145°, 146.2°, 150°, 155°, or 160°. In this embodiment, the central angle of the arc-shaped shearing portion 10 is 146.2° for illustrative purposes only, and the central angles of the inner and outer surfaces of the arc-shaped shearing portion 10 are both 146.2°.

[0069] Optionally, the arc length of the arc-shaped shearing portion 10 is 5mm, 6mm, 7mm, 8mm, 8.17mm, 8.95mm, 9mm, or 10mm. This embodiment only uses the arc length of the outer surface of the arc-shaped shearing portion 10 (e.g., ...). Figure 2 As shown in L1, the arc length of the inner side of the arc-shaped shear section 10 is 8.95 mm. Figure 2 The value of L2 in the diagram is 8.17 mm for illustrative purposes.

[0070] It is worth noting that this embodiment may only satisfy the central angle of the arc-shaped shearing portion 10 as 135°-160°, or this embodiment may only satisfy the arc length of the arc-shaped shearing portion 10 as 5mm-10mm, or this embodiment may simultaneously satisfy the central angle of the arc-shaped shearing portion 10 as 135°-160° and the arc length of the arc-shaped shearing portion 10 as 5mm-10mm. This embodiment and the following description only use the central angle of the arc-shaped shearing portion 10 as 135°-160° and the arc length of the arc-shaped shearing portion 10 as 5mm-10mm for illustrative purposes.

[0071] Please refer to this again. Figures 1-2 In this embodiment, along the reciprocating motion direction of the moving blade 1, the arc-shaped shearing part 10 includes a plurality of first shearing blades 11 spaced apart, and each transition part 20 includes a first sub-transition part 21 and a second sub-transition part 22. One end of the first sub-transition part 21 is connected to the end of the arc-shaped shearing part 10, the other end of the first sub-transition part 21 is connected to one end of the second sub-transition part 22, and the other end of the second sub-transition part 22 is connected to the fixing part 30.

[0072] Each of the first sub-transition portions 21 is provided to protrude away from the other first sub-transition portion 21. A portion of the outer side of the first sub-transition portion 21 is used to fit against the inner side of the stationary blade 2. Along the reciprocating motion direction of the moving blade 1, the first sub-transition portion 21 used to fit against the inner side of the stationary blade 2 includes a plurality of second shearing blades 211 spaced apart. Each second shearing blade 211 is connected to a first shearing blade 11.

[0073] Along the reciprocating motion direction of the moving blade 1, the arc-shaped cutting section 10 is composed of a plurality of spaced-apart first cutting blades 11. Each first cutting blade 11 has sharpening on both opposite sides and cooperates with the stationary blade 2 to cut the hair extending into the stationary blade 2. Cutting can be performed in both directions. Each transition section 20 can be composed of a first sub-transition section 21 and a second sub-transition section 22. One end of the first sub-transition section 21 is connected to the end of the arc-shaped cutting section 10, and the other end of the first sub-transition section 21 is connected to one end of the second sub-transition section 22. The other end of the second sub-transition section 22 is connected to the fixing section 30. In other words, the extension direction from the arc-shaped cutting section 10 to the fixing section 30 is, in sequence, the arc-shaped cutting section 10, the first sub-transition section 21, the second sub-transition section 22, and the fixing section 30.

[0074] In this embodiment, each first sub-transition portion 21 protrudes away from the other first sub-transition portion 21; in other words, each first sub-transition portion 21 protrudes outward. Because of the protrusion of the first sub-transition portions 21, a portion of each first sub-transition portion 21 can also adhere to the inner surface of the stationary blade 2, thereby further increasing the contact area between the moving blade 1 and the stationary blade 2. For example, the outer surface of the first sub-transition portion 21 from its connection with the arc-shaped shearing portion 10 to its apex adheres to the inner surface of the stationary blade 2, and the outer surface from the apex of the first sub-transition portion 21 to the connection between the first sub-transition portion 21 and the second sub-transition portion 22 gradually moves away from the inner surface of the stationary blade 2. Therefore, only the front half of the first sub-transition portion 21 can adhere to the inner surface of the stationary blade 2, while the rear half of the first sub-transition portion 21 separates from and gradually moves away from the inner surface of the stationary blade 2.

[0075] Based on this, this embodiment can also be used on the first sub-transition section 21, i.e., the front half of the first sub-transition section 21, which is attached to the inner side of the stationary blade 2. Along the reciprocating motion direction of the moving blade 1, the first sub-transition section 21 in the front half is composed of a plurality of second shearing blades 211 spaced apart, and each second shearing blade 211 is connected to a first shearing blade 11. The second shearing blades 211 are the same as the first shearing blades 11 and can also cut hair in both directions. One first shearing blade 11 and the two second shearing blades 211 on both sides constitute the shearing blade 10a of the moving blade 1.

[0076] In other words, this embodiment not only increases the contact area between the moving blade 1 and the stationary blade 2 by utilizing the first sub-transition portion 21, but also utilizes the first sub-transition portion 21 to form a second shearing blade 211, thereby further increasing the shearing area between the moving blade 1 and the stationary blade 2 and further improving the shearing efficiency.

[0077] Please refer to Figure 5 , Figure 5 for Figure 2The diagram shows a partial enlarged view of the moving blade. In this embodiment, both the first sub-transition portion 21 and the second sub-transition portion 22 are arc-shaped. The arc-shaped first sub-transition portion 21 and the second sub-transition portion 22 can effectively avoid stress concentration that could lead to breakage at the connection point, thereby improving the connection performance and service life of the moving blade 1. In addition, the arc-shaped first sub-transition portion 21 and the second sub-transition portion 22 do not have any dead corners where hair and debris can easily hide, making the moving blade 1 easy to clean.

[0078] In this embodiment, since both the first sub-transition portion 21 and the second sub-transition portion 22 are arc-shaped, each of them has a certain central angle. This embodiment allows the central angles of the first sub-transition portion 21 and the second sub-transition portion 22 to be unequal; specifically, the central angle of the first sub-transition portion 21 is larger than that of the second sub-transition portion 22.

[0079] In other words, the central angle of the first sub-transition section 21 can be designed to be larger, while the central angle of the second sub-transition section 22 can be designed to be smaller. Since the first sub-transition section 21 is located near the arc-shaped shearing section 10, the larger central angle can prevent stress deformation of the first shearing blade of the arc-shaped shearing section 10, making it easier to manufacture. Since the second sub-transition section 22 is located near the fixing section 30, the smaller central angle allows the fixing section 30 to be bent to a predetermined position, facilitating its installation on the base 61 of the moving blade assembly 60, and preventing the width of the moving blade 1 from becoming too large.

[0080] In this embodiment, the central angle of the first sub-transition portion 21 (e.g.) Figure 5 (As shown in θ2 and θ3) is 70°-100°. If the central angle of the first sub-transition section 21 is too small, for example, less than 70°, it will not only increase the manufacturing difficulty but also increase the internal stress of the moving blade 1 and affect the cutting of hair. If the central angle of the first sub-transition section 21 is too large, for example, greater than 100°, it will increase the overall size of the moving blade 1, making the width of the blade module 3 too large and unable to achieve miniaturization. Therefore, this embodiment, by making the central angle of the first sub-transition section 21 70°-100°, not only increases the cutting area and facilitates manufacturing but also does not increase the internal stress of the moving blade 1, allows for smooth cutting of hair, and does not make the width of the moving blade 1 too large.

[0081] Optionally, the central angle of the first sub-transition section 21 is 70°, 75°, 80°, 81.38°, 85°, 90°, 90.65°, 95°, or 100°.

[0082] In this embodiment, the central angle of the outer surface of the first sub-transition portion 21 (e.g.) Figure 5 (As shown in θ2) is greater than the central angle of the inner surface of the first sub-transition section 21 (e.g., θ2). Figure 5 (As shown in θ3).

[0083] Since the first sub-transition portion 21 has a certain thickness, it has an outer side and an inner side that are arranged opposite to each other. In this embodiment, the central angle of the outer side of the first sub-transition portion 21 is not equal to the central angle of the inner side. Specifically, the central angle of the outer side of the first sub-transition portion 21 is larger than the central angle of the inner side. This can also be understood as increasing the central angle of the outer side of the first sub-transition portion 21, thereby further increasing the contact area and cutting area between the first sub-transition portion 21 and the stationary blade 2, and increasing the cutting efficiency. From another perspective, reducing the central angle of the inner side of the first sub-transition portion 21 in this embodiment can increase the entry space at the corner, making it easier for hair to enter and for cut hair to fall off.

[0084] Optionally, the central angle of the outer surface of the first sub-transition portion 21 can be 90.65°, and the central angle of the inner surface of the first sub-transition portion 21 can be 81.38°.

[0085] Further optionally, the arc length of the outer surface of the first sub-transition portion 21 (e.g.) Figure 5 As shown in L3, the arc length of the inner surface of the first sub-transition part 21 can be 0.95mm. Figure 5 (As shown in L4) can be 0.46mm.

[0086] Further optionally, the R-angle of the outer surface of the first sub-transition portion 21 (e.g.) Figure 5 The radius of curvature (R1) is 0.3mm-0.8mm, and the radius of curvature (R) of the inner surface of the first sub-transition part 21 is as shown in Figure 1. Figure 5 The value of R2 (as shown in the figure) is 0-0.5 mm.

[0087] Please refer to this again. Figure 2 and Figure 5 In this embodiment, each transition portion 20 includes a first sub-transition portion 21 and a second sub-transition portion 22. One end of the first sub-transition portion 21 is connected to the end of the arc-shaped shear portion 10, and the other end of the first sub-transition portion 21 is connected to one end of the second sub-transition portion 22. The other end of the second sub-transition portion 22 is connected to the fixing portion 30. Each second sub-transition portion 22 protrudes towards the other second sub-transition portion 22, and the central angle of the second sub-transition portion 22 (e.g., ...) is... Figure 5 (As shown in θ4 and θ5) is 55°-85°.

[0088] Each transition section 20 can be composed of a first sub-transition section 21 and a second sub-transition section 22. One end of the first sub-transition section 21 is connected to the end of the arc-shaped shear section 10, and the other end of the first sub-transition section 21 is connected to one end of the second sub-transition section 22. The other end of the second sub-transition section 22 is connected to the fixing section 30. In other words, the extension direction from the arc-shaped shear section 10 to the fixing section 30 is arc-shaped shear section 10, first sub-transition section 21, second sub-transition section 22, and fixing section 30.

[0089] In this embodiment, each of the second sub-transition portions 22 protrudes towards the other, meaning each second sub-transition portion 22 protrudes inward to better connect to the fixing portion 30 located inside the arc-shaped shearing portion 10. Furthermore, this embodiment allows the central angle of the second sub-transition portion 22 (as shown in the figure) to be 55°-85°. If the central angle of the second sub-transition portion 22 is too small, for example, less than 55°, the fixing portion 30 will be positioned outward, reducing the gap between the fixing portion 30 and the stationary blade assembly 50, making interference between the moving blade 1 and the stationary blade assembly 50 more likely. If the central angle of the second sub-transition portion 22 is too large, for example, greater than 85°, the arc length of the second sub-transition portion 22 will be too long, making the second sub-transition portion 22 prone to breakage and reducing the stability of the moving blade 1. Therefore, by setting the central angle of the second sub-transition portion 22 to 55°-85°, this embodiment ensures both the strength of the moving blade 1 and a sufficient gap between the moving blade 1 and the stationary blade assembly 50.

[0090] Optionally, the central angle of the second sub-transition section 22 can be 55°, 60°, 65°, 70°, 75°, 80°, or 85°.

[0091] In this embodiment, the central angle of the outer surface of the second sub-transition portion 22 (e.g.) Figure 5 The central angle of the inner surface of the second sub-transition section 22 (as shown in θ4) is greater than that of the central angle of the inner surface of the second sub-transition section 22 (as shown in θ4). Figure 5 (As shown in θ5).

[0092] Since the second sub-transition portion 22 has a certain thickness, it has an outer side and an inner side that are arranged opposite to each other. In this embodiment, the central angle of the outer side of the second sub-transition portion 22 is not equal to the central angle of the inner side of the second sub-transition portion 22. Specifically, the central angle of the outer side of the second sub-transition portion 22 is made larger than the central angle of the inner side of the first sub-transition portion 20.

[0093] The above can also be understood as follows: in this embodiment, the central angle of the outer surface of the second sub-transition portion 22 is increased, thereby further adjusting the fixing portion 30 to be positioned more inward, increasing the gap between the fixing portion 30 and the stationary blade assembly 50, and avoiding interference. From another perspective, in this embodiment, reducing the central angle of the inner surface of the second sub-transition portion 22 makes it easier for the cut hair to fall along the inner surface of the second sub-transition portion 22.

[0094] Optionally, the central angle of the outer surface of the second sub-transition portion 22 (e.g.) Figure 5 As shown in θ4, it can be 72.88°, and the central angle of the inner surface of the second sub-transition part 22 (as shown in θ4) can be 72.88°. Figure 5 (As shown in θ5) can be 66.06°.

[0095] Further optionally, the arc length of the outer surface of the second sub-transition portion 22 (e.g.) Figure 5 As shown in L5, the arc length of the inner surface of the second sub-transition part 22 can be 0.25mm. Figure 5 (As shown in L6) can be 0.69mm.

[0096] Further optionally, the R-angle of the outer surface of the second sub-transition portion 22 (e.g.) Figure 5 As shown in R3, the R-angle of the inner side of the second sub-transition part 22 is 0-0.5mm. Figure 5 The diameter (R4 shown in the figure) is 0.3mm-0.8mm.

[0097] Please refer to this again. Figure 2 In this embodiment, the top surfaces of the two fixing portions 30 near the arc-shaped shear portion 10 are lower than the end face of the arc-shaped shear portion 10. In the height direction, this embodiment allows the top surfaces of the two fixing portions 30 near the arc-shaped shear portion 10 to be located below the end face of the arc-shaped shear portion 10, making it easier for the transition portion 20 to connect the arc-shaped shear portion 10 to the fixing portion 30. This can be achieved using a shorter transition portion 20, ensuring the strength of the transition portion 20, preventing breakage, and facilitating manufacturing. Avoiding the top surface of the fixing portion 30 being higher than the end face of the arc-shaped shear portion 10 would cause the transition portion 20 to bend at a larger angle and increase its length, resulting in higher internal stress at the transition portion 20. This would significantly reduce the strength and stability of the transition portion 20, making it prone to breakage and increasing manufacturing difficulty.

[0098] Optionally, the specific structure of the moving blade 1 described in each of the above embodiments can be simultaneously satisfied, and the moving blade 1 can be manufactured by stamping. This embodiment also provides a specific manufacturing method for the moving blade 1: First, a flat metal sheet can be prepared. The metal sheet includes a middle part, two ends located on both sides of the middle part, and two transition parts 20 connecting the middle part and each end part. The middle part of the metal sheet has a plurality of first shearing blades 11 spaced apart. Then, the transition parts 20 are stamped so that the extension direction of the ends is different from the extension direction of the middle part, at which time the ends form fixed parts 30. Then, the middle part is stamped to form an arc-shaped shearing part 10. Finally, the arc-shaped shearing part 10 is bent to form the moving blade 1, and the distance between the opposite ends of the arc-shaped shearing part 10 is greater than the distance between the two fixed parts 30.

[0099] Optionally, when stamping the transition portion 20, the transition portion 20 near the end region can be stamped first to form two second sub-transition portions 22. Then, the transition portion near the middle region can be stamped to form two first sub-transition portions 21. At this time, the middle part of the metal sheet is still flat, and the first sub-transition portions 21 are closer to the middle part of the metal sheet than the second sub-transition portions 22.

[0100] Please refer to this again. Figure 2 In this embodiment, the second shearing blade 211 extends to the apex of the first sub-transition portion 21, and the maximum distance between the two second shearing blades 211 disposed opposite to each other in the two first sub-transition portions 21 (e.g., Figure 2 The diameter of L7 (as shown in the figure) is 6mm-7mm.

[0101] Based on the second shearing blade 211 provided on the first sub-transition part 21, since the first sub-transition part 21 is convex outward, the second shearing blade 211 can also be extended to the apex of the first sub-transition part 21, that is, the second shearing blade 211 is extended to the end of the first sub-transition part 21 where it is in contact with the stationary blade 2, thereby maximizing the shearing area of ​​the moving blade 1 and the stationary blade 2.

[0102] Furthermore, this embodiment allows the maximum distance between the two opposing second shearing blades 211 in the two first sub-transition sections 21 to be 6mm-7mm. In other words, the distance between the two outermost endpoints on both sides of the moving blade 1 is 6mm-7mm, which can also be understood as the maximum width of the moving blade 1 being 6mm-7mm. If the maximum width of the moving blade 1 is too small, for example, less than 6mm, the contact area between the moving blade 1 and the stationary blade 2 will be reduced, increasing manufacturing difficulty and internal stress. If the maximum width of the moving blade 1 is too large, for example, greater than 7mm, it will affect the overall size of the machine, making miniaturization impossible, and increasing the load and temperature. In summary, this embodiment, by setting the maximum distance between the two opposing second shearing blades 211 in the two first sub-transition sections 21 to 6mm-7mm, not only increases the shearing area and facilitates manufacturing, but also does not increase the internal stress of the moving blade 1, allows for smooth hair shearing, avoids excessive width of the moving blade 1, and results in lower load and lower temperature.

[0103] Optionally, the maximum distance between the two second shearing blades 211 disposed opposite to each other in the two first sub-transition sections 21 can be 6mm, 6.1mm, 6.2mm, 6.3mm, 6.4mm, 6.5mm, 6.6mm, 6.7mm, 6.8mm, 6.9mm, or 7mm. In this embodiment, only the maximum distance between the two second shearing blades 211 disposed opposite to each other in the two first sub-transition sections 21 is 6.8mm for illustrative purposes.

[0104] Alternatively, in other embodiments, the second shearing blade 211 may extend to the second sub-transition portion 22, thereby ensuring that both the moving blade 1 and the stationary blade 2 have shearing blades 10a in their contact portions.

[0105] Alternatively, please refer to Figure 8In addition to the second shearing blade 211, the first sub-transition section 21 may also have a third shearing blade 212 connected to the second shearing blade 211. The space enclosed by two adjacent third shearing blades 212 is arc-shaped. Since the second shearing blade 211 extends from the end point of the arc-shaped shearing section 10 to the apex of the first sub-transition section 21, the second shearing blade 211 is located in the front half of the first sub-transition section 21 and protrudes outward, so that the second shearing blade 211 can also fit against the inner side of the stationary blade 2. However, at this time, the third shearing blade 212 extends from the apex of the first sub-transition section 21 to the second sub-transition section 22. Therefore, the third shearing blade 212 is located in the rear half of the first sub-transition section 21 and is recessed inward. The third shearing blade 212 does not fit against the inner side of the stationary blade 2, but it can still play a certain shearing effect. At this time, the shearing blade 10a can be composed of the first shearing blade 11, the second shearing blade 211, and the third shearing blade 212. Furthermore, the third shearing blade 212 can be formed during the preparation of the moving blade 1 through the stamping process, and the space enclosed between two adjacent third shearing blades 212 is arc-shaped, thereby reducing the difficulty of preparation.

[0106] In this embodiment, the moving blade 1 satisfies at least one of the following conditions: the wall thickness of the moving blade 1 (e.g., Figure 2 As shown in L8, the distance between the outer surface of each fixed part 30 and the outermost end point of the moving blade 1 is 0.2mm-0.8mm. Figure 2 As shown in L9, the distance is 0.4mm-0.8mm. The distance between the two fixing parts 30 (as shown in L9) is 0.4mm-0.8mm. Figure 2 The diameter (as shown in L10) is 3.5mm-5.5mm.

[0107] In the first embodiment, the wall thickness of the moving blade 1 can be 0.2mm-0.8mm. The wall thickness of the moving blade 1 can be understood as the distance between the outer surface and the inner surface. If the wall thickness of the moving blade 1 is too small, for example, less than 0.2mm, the wall thickness of the moving blade 1 will be too thin, resulting in poor strength. If the wall thickness of the moving blade 1 is too large, for example, greater than 0.8mm, the wall thickness of the moving blade 1 will be too thick, making it difficult to process, and processes such as etching and stamping will be difficult. Therefore, this embodiment, by making the wall thickness of the moving blade 1 0.2mm-0.8mm, can both ensure the strength of the moving blade 1 and facilitate processing.

[0108] Optionally, the wall thickness of the moving blade 1 can be 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, or 0.8mm. This embodiment is only illustrated with the example of a wall thickness of 0.3mm for the moving blade 1.

[0109] In the second embodiment, the distance between the outer surface of each fixing part 30 and the outermost end point of the moving blade 1 can be 0.4mm-0.8mm. If the distance between the outer surface of each fixing part 30 and the outermost end point of the moving blade 1 is too small, for example, less than 0.4mm, the gap between the fixing part 30 and the stationary blade assembly 50 will be reduced, and they will easily interfere with each other. If the distance between the outer surface of each fixing part 30 and the outermost end point of the moving blade 1 is too large, for example, greater than 0.8mm, the length of the transition part 20 will be increased, thereby reducing the strength and stability of the moving blade 1. Therefore, by making the distance between the outer surface of each fixing part 30 and the outermost end point of the moving blade 1 0.4mm-0.8mm, the strength of the moving blade 1 can be guaranteed, and interference between the fixing part 30 of the moving blade 1 and the stationary blade assembly 50 can be avoided, leaving sufficient clearance.

[0110] Optionally, the distance between the outer surface of each fixing part 30 and the outermost end point of the moving blade 1 can be 0.4mm, 0.5mm, 0.56mm, 0.6mm, 0.7mm, or 0.8mm. This embodiment is only illustrated with the distance of 0.56mm between the outer surface of each fixing part 30 and the outermost end point of the moving blade 1.

[0111] In the third embodiment, the distance between the two fixing parts 30 can be 3.5mm-5.5mm. If the distance between the two fixing parts 30 is too small, for example, less than 3.5mm, the length of the transition part 20 will increase, thereby reducing the strength and stability of the moving blade 1. If the distance between the two fixing parts 30 is too large, for example, greater than 5.5mm, the gap between the fixing part 30 and the stationary blade assembly 50 will be reduced, and the two are prone to interference. Therefore, by making the distance between the two fixing parts 30 3.5mm-5.5mm, the strength of the moving blade 1 can be guaranteed, and interference between the fixing part 30 of the moving blade 1 and the stationary blade assembly 50 can be avoided, leaving sufficient clearance.

[0112] Optionally, the distance between the two fixing parts 30 is 3.5mm, 3.6mm, 3.7mm, 3.8mm, 3.9mm, 4.0mm, 4.1mm, 4.2mm, 4.3mm, 4.4mm, 4.5mm, 4.6mm, 4.7mm, 4.8mm, 4.9mm, 5.0mm, 5.08mm, 5.1mm, 5.2mm, 5.3mm, 5.4mm, or 5.5mm. In this embodiment, only a distance of 5.08mm between the two fixing parts 30 is used for illustrative purposes.

[0113] It is worth noting that this embodiment may satisfy only one of the first embodiment, the second embodiment, and the third embodiment, or any two of the first embodiment, the second embodiment, and the third embodiment, or simultaneously satisfy the first embodiment, the second embodiment, and the third embodiment. This embodiment is only illustrated by simultaneously satisfying the first embodiment, the second embodiment, and the third embodiment.

[0114] Please refer to this as well. Figure 2 and Figure 6 , Figure 6 for Figure 1 A partial top view of the moving blade is shown. In this embodiment, the second shearing blade 211 extends to the apex of the first sub-transition portion 21. The first shearing blade 11 and the second shearing blade 211 constitute the shearing blade 10a of the moving blade 1. Along the arrangement direction of the plurality of shearing blades 10a, the width of the shearing blade 10a gradually increases from the middle to both ends in its bending direction; the width of the middle part of the shearing blade 10a (e.g., ...) Figure 6 As shown in L11, the width of the shearing blade 10a end is 0.18mm-0.6mm. Figure 6 The diameter (as shown in L12) is 0.28mm-0.8mm.

[0115] Based on the second shearing blade 211 provided on the first sub-transition part 21, since the first sub-transition part 21 is convex outward, the second shearing blade 211 can also be extended to the apex of the first sub-transition part 21, that is, the second shearing blade 211 is extended to the end of the first sub-transition part 21 where it is in contact with the stationary blade 2, thereby maximizing the shearing area of ​​the moving blade 1 and the stationary blade 2.

[0116] Each first shearing blade 11 and its two adjacent second shearing blades 211 constitute a shearing blade 10a of the moving blade 1. Along the arrangement direction of the multiple shearing blades 10a, i.e., along the reciprocating motion direction of the moving blade 1, the width of each shearing blade 10a is not uniform. The width of the shearing blade 10a gradually increases from the middle towards its two ends in the bending direction. In other words, the width is smallest at the apex of the middle of the shearing blade 10a, and largest at the apex of the first sub-transition section 21, i.e., at the two ends of the shearing blade 10a. By minimizing the width at the middle of the shearing blade 10a, the accumulation and blockage of hair between the shearing blades 10a can be reduced, thereby improving shearing efficiency. By maximizing the width at the ends of the shearing blade 10a, the connection area between the shearing blade 10a and other components can be increased, thereby increasing the bonding strength between the shearing blade 10a and other parts and avoiding the risk of breakage due to a small width at the connection point.

[0117] Furthermore, in this embodiment, the width of the middle portion of the shearing blade 10a can be 0.18mm-0.6mm. If the width of the middle portion of the shearing blade 10a is too small, for example, less than 0.18mm, the strength of the middle portion of the shearing blade 10a will be reduced, and the shearing blade 10a will be prone to breakage. If the width of the middle portion of the shearing blade 10a is too large, for example, greater than 0.6mm, the width of the shearing gap 12 formed between two adjacent shearing blades 10a will be reduced, thereby reducing the shearing efficiency. Therefore, by making the width of the middle portion of the shearing blade 10a 0.18mm-0.6mm, this embodiment can both ensure the strength of the shearing blade 10a and improve the shearing efficiency.

[0118] Optionally, the width of the middle part of the shearing blade 10a can be 0.18mm, 0.2mm, 0.25mm, 0.28mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.55mm, or 0.6mm. This embodiment only illustrates the case with the width of the middle part of the shearing blade 10a being 0.28mm.

[0119] Furthermore, in this embodiment, the width of the end of the shearing blade 10a can be 0.28mm-0.8mm. If the width of the end of the shearing blade 10a is too small, for example, less than 0.28mm, the connection performance between the shearing blade 10a and other parts will be reduced. If the width of the end of the shearing blade 10a is too large, for example, greater than 0.8mm, the shearing gap 12 at the end of the shearing blade 10a will be reduced, resulting in difficulty in advancing, difficulty in shearing, and reduced shearing efficiency. Therefore, by making the width of the end of the shearing blade 10a 0.28mm-0.8mm, this embodiment can improve both the connection performance and the shearing efficiency.

[0120] Optionally, the width of the end of the shearing blade 10a can be 0.28mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.48mm, 0.5mm, 0.55mm, 0.6mm, 0.65mm, 0.7mm, 0.75mm, or 0.8mm. This embodiment is only illustrated with the width of the end of the shearing blade 10a being 0.48mm.

[0121] Please refer to Figure 7 , Figure 7 for Figure 3 The diagram shows a partial perspective view of the moving blade and stationary blade in operation. In this embodiment, the stationary blade 2 has a plurality of mesh openings 40 arranged in an array, and along the arrangement direction of the plurality of shearing blades 10a, the maximum width of the shearing blades 10a is smaller than the width of the mesh openings 40.

[0122] The stationary blade 2 can be provided with multiple mesh holes 40 arranged in an array. The mesh holes 40 are used to allow hair to pass through the stationary blade 2 and into the cutting gap 12 of the moving blade 1. In this way, the moving blade 1 can cooperate with the stationary blade 2 to cut the hair during the reciprocating motion, so as to achieve the cutting effect.

[0123] Along the arrangement direction of the multiple shearing blades 10a, i.e., along the reciprocating motion direction of the moving blade 1, this embodiment first makes the width of the shearing blades 10a smaller than the width of the mesh 40, thereby preventing the shearing blades 10a from clogging the mesh 40 and allowing hair to pass through the mesh 40 smoothly. Furthermore, this embodiment also makes the maximum width of the shearing blades 10a smaller than the width of the mesh 40, thereby ensuring that the maximum width of the shearing blades 10a also prevents them from clogging the mesh 40, allowing hair to pass through the mesh 40 smoothly. Moreover, when the maximum width of the shearing blades 10a is smaller than the width of the mesh 40, the minimum width of the shearing blades 10a will also necessarily be smaller than the width of the mesh 40, thus ensuring that the shearing blades 10a as a whole prevent clogging the mesh 40, allowing hair to pass through the mesh 40 smoothly.

[0124] Please refer to this again. Figures 6-7 In this embodiment, the stationary blade 2 is provided with a plurality of meshes 40 arranged in an array, and a shearing gap 12 is formed between two adjacent shearing blades 10a. Along the arrangement direction of the plurality of shearing blades 10a, the width of the shearing gap 12 gradually decreases from the middle to both ends of its bending direction. The minimum value of the shearing gap 12 is greater than the sum of the width of one mesh 40 and the spacing between two adjacent meshes 40.

[0125] The stationary blade 2 can be provided with multiple mesh holes 40 arranged in an array. The mesh holes 40 are used to allow hair to pass through the stationary blade 2 and into the cutting gap 12 of the moving blade 1. In this way, the moving blade 1 can cooperate with the stationary blade 2 to cut the hair during the reciprocating motion, so as to achieve the cutting effect.

[0126] A shearing gap 12 can be formed between two adjacent shearing blades 10a. After the hair passes through the mesh 40 of the stationary blade 2, the hair can be placed in the shearing gap 12 for the moving blade 1 to cut. Along the arrangement direction of the multiple shearing blades 10a, that is, along the reciprocating motion direction of the moving blade 1, the width of each shearing gap 12 is not equal. The width of the shearing gap 12 gradually decreases from the middle to both ends in its bending direction. In other words, the width is largest at the apex of the middle of the shearing gap 12, and smallest at both ends of the shearing gap 12, that is, at the apex of the second shearing blade 211 at the first sub-transition section 21. By making the width of the middle of the shearing gap 12 the largest, it is easier for the hair to enter, reducing the accumulation of hair between the shearing blades 10a, thereby reducing the risk of clogging and entanglement, ensuring the smooth movement of the shearing blades 10a, and thus improving the shearing efficiency.

[0127] Based on this, this embodiment allows the shearing gap 12 to be greater than the width of one mesh 40 and the sum of the distances between two adjacent meshes 40. Therefore, regardless of the movement of the moving blade 1, a portion of the shearing gap 12 can be precisely aligned with the mesh 40, allowing hair to smoothly enter the shearing gap 12. Furthermore, this embodiment also allows the minimum value of the shearing gap 12 to be greater than the width of one mesh 40 and the sum of the distances between two adjacent meshes 40. That is, even at its minimum, the shearing gap 12 can be greater than the width of one mesh 40 and the sum of the distances between two adjacent meshes 40, ensuring that even at its minimum, the shearing gap 12 always has a portion that can precisely align with the mesh 40, allowing hair to smoothly enter the shearing gap 12. Since the minimum value of the shearing gap 12 is greater than the width of one mesh 40 and the sum of the distances between two adjacent meshes 40, the maximum value of the shearing gap 12 must also be greater than the width of one mesh 40 and the sum of the distances between two adjacent meshes 40, ensuring that the entire shearing gap 12 has a portion that can precisely align with the mesh 40, further improving shearing efficiency.

[0128] In this embodiment, the minimum value of the shear gap 12 (e.g.) Figure 6 As shown in L13, the maximum value of the shear gap 12 is 0.3mm-1mm. Figure 6 The thickness (as shown in L14) is 0.5mm-1.5mm.

[0129] The minimum value of the shear gap 12 is the shear gap 12 formed at the end of the shear blade 10a. If the minimum value of the shear gap 12 is too small, for example, less than 0.3 mm, it will lead to difficulty in advancing and shearing, and reduce the shearing efficiency. If the minimum value of the shear gap 12 is too large, for example, greater than 1 mm, it will make the end of the shear blade 10a too narrow, reducing the connection performance between the shear blade 10a and other parts. Therefore, this embodiment improves both the connection performance and the shearing efficiency by making the minimum value of the shear gap 12 0.3 mm to 1 mm.

[0130] Optionally, the minimum value of the shear gap 12 can be 0.3mm, 0.4mm, 0.5mm, 0.59mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, or 1mm. This embodiment only illustrates the minimum value of the shear gap 12 as 0.59mm.

[0131] The maximum value of the shear gap 12 is the shear gap 12 formed at the apex of the middle part of the shear blade 10a. If the maximum value of the shear gap 12 is too small, for example, less than 0.5 mm, it will lead to difficulty in advancing and shearing, and reduce the shearing efficiency. If the maximum value of the shear gap 12 is too large, for example, greater than 1.5 mm, it will reduce the strength of the middle part of the shear blade 10a, and the shear blade 10a will be prone to breakage. Therefore, this embodiment improves both the connection performance and the shearing efficiency by making the maximum value of the shear gap 12 0.5 mm to 1.5 mm.

[0132] Optionally, the maximum value of the shear gap 12 can be 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, or 1.5mm. This embodiment only illustrates the maximum value of the shear gap 12 as 0.9mm.

[0133] Please refer to this as well. Figures 8-9 , Figure 8 This is a partial cross-sectional schematic diagram of the moving blade in one embodiment of this application. Figure 9 for Figure 8 The diagram shows a partial enlarged view of the moving blade. In this embodiment, the shearing blade 10a includes a contact surface 13, a first shearing surface 14, and a second shearing surface 15. The contact surface 13 is used to contact the inner side of the stationary blade 2. The first shearing surface 14 is bent to connect with the contact surface 13, and the second shearing surface 15 is bent to connect with the first shearing surface 14. The included angle between the contact surface 13 and the first shearing surface 14 (e.g., ...) Figure 9 The angle between the first shear plane 14 and the second shear plane 15 (as shown in the figure) is 30°-50°, and the angle between them is (as shown in the figure) is 30°-50°. Figure 9 The angle ∠B (as shown in the figure) is 130°-140°.

[0134] The shearing blade 10a, composed of the first shearing blade 11 and the second shearing blade 211, includes a mating surface 13, a first shearing surface 14, and a second shearing surface 15. The mating surface 13 is used to fit against the inner side of the stationary blade 2, thus the mating surface 13 is the outer side of the shearing blade 10a. The first shearing surface 14 and the second shearing surface 15 are the sides of the shearing blade 10a. The first shearing surface 14 is bent and connected to the mating surface 13, and the first shearing surface 14 and the mating surface together form the cutting edge of the shearing blade 10a. The second shearing surface 15 is bent and connected to the first shearing surface 14. The setting of the second shearing surface 15 can avoid the shearing blade 10a being too thin due to relying solely on the first shearing surface 14, resulting in insufficient strength and easy breakage. If relying solely on the second shearing surface 15, the cutting edge of the shearing blade 10a will not be sharp, reducing the shearing efficiency.

[0135] In this embodiment, the included angle between the mating surface 13 and the first shearing surface 14 is 30°-50°. If the included angle between the mating surface 13 and the first shearing surface 14 is too small, for example, less than 40°, it will result in insufficient strength and easy breakage or chipping of the cutting edge. If the included angle between the mating surface 13 and the first shearing surface 14 is too large, for example, greater than 50°, it will result in a dull cutting edge and reduced shearing efficiency. Therefore, by making the included angle between the mating surface 13 and the first shearing surface 14 30°-50°, this embodiment can improve shearing efficiency while ensuring the strength of the shearing blade 10a.

[0136] Optionally, the included angle between the bonding surface 13 and the first shearing surface 14 can be 30°, 31°, 32°, 33°, 34°, 35°, 36°, 37°, 38°, 39°, 40°, 41°, 42°, 43°, 44°, 45°, 46°, 47°, 48°, 49°, or 50°. This embodiment is only illustrated with an included angle of 47° between the bonding surface 13 and the first shearing surface 14.

[0137] Furthermore, this embodiment allows the included angle between the first shearing surface 14 and the second shearing surface 15 to be 130°-140°. If the included angle between the first shearing surface 14 and the second shearing surface 15 is too small, for example, less than 130°, it will reduce the strength at the connection between the first shearing surface 14 and the second shearing surface 15, making the shearing blade 10a prone to breakage. If the included angle between the first shearing surface 14 and the second shearing surface 15 is too large, for example, greater than 150°, it will make the thickness of the shearing blade 10a too large, increasing the overall weight and load of the machine. Therefore, by making the included angle between the first shearing surface 14 and the second shearing surface 15 130°-140°, this embodiment can make the shearing blade 10a lightweight while ensuring that the shearing blade 10a has sufficient strength.

[0138] Optionally, the included angle between the first shear surface 14 and the second shear surface 15 can be 130°, 131°, 132°, 133°, 134°, 135°, 136°, 137°, 138°, 139°, or 140°. This embodiment is only illustrated with an included angle of 135° between the first shear surface 14 and the second shear surface 15.

[0139] Please refer to this as well. Figures 10-12 , Figure 10 This is a three-dimensional structural diagram of the cutter head module in one embodiment of this application. Figure 11 for Figure 10 The exploded view of the cutter head module shown. Figure 12 for Figure 10The diagram shows a cross-sectional view of the cutter head module. This embodiment provides a cutter head module 3, which includes a stationary cutter assembly 50 and a moving cutter assembly 60. The stationary cutter assembly 50 is disposed outside the moving cutter assembly 60. The moving cutter assembly 60 includes a base 61 and a moving cutter 1 as provided in the above embodiment of this application. The fixing part 30 of the moving cutter 1 is fixed to the base 61. The base 61 is used to connect the transmission member 920 of the drive module 92.

[0140] The cutter head module 3 consists of a stationary cutter assembly 50 and a moving cutter assembly 60. The moving cutter assembly 60 comprises a base 61 and a moving cutter 1 as mentioned in the embodiments of this application. The moving cutter 1 can be fixed on the base 61, which can be used to connect to the transmission component 920 of the drive module 92. The stationary cutter 2 is always in a fixed state. The drive module 92 can drive the transmission component 920 to reciprocate in a preset direction. The transmission component 920 can then drive the base 61 to reciprocate, and the base 61 can synchronously drive the moving cutter 1 fixed thereon to reciprocate, so that the moving cutter 1 reciprocates relative to the stationary cutter 2, thereby achieving shearing.

[0141] The cutter head module 3 provided in this embodiment, by employing the moving blade 1 provided in the above-described embodiment of this application, allows the arc-shaped shearing portion 10 in this embodiment to extend further along the bending direction when the distance between the two fixed portions 30 is the same as the distance between the two fixed portions 30 in the related art. This increases the contact area and shearing area between the moving blade 1 and the stationary blade 2, thereby improving the shearing efficiency. Subsequently, only the transition portion 20 is needed to connect the extended arc-shaped shearing portion 10 to the fixed portion 30. Specifically, in this embodiment, the central angle of the arc-shaped shearing portion 10 is 135°-160°; and / or, the arc length of the arc-shaped shearing portion 10 is 5mm-10mm, which is greater than the central angle and arc length of the arc-shaped shearing portion 10 in the related art.

[0142] In summary, by setting the moving blade 1 of the above-described structure, the central angle of the arc-shaped shearing part 10 is 135°-160°; and / or the arc length of the arc-shaped shearing part 10 is 5mm-10mm, which can increase the contact area between the arc-shaped shearing part 10 and the stationary blade 2, thereby increasing the shearing area and thus improving the shearing efficiency.

[0143] Please refer to this as well. Figures 12-13 , Figure 13 This is a three-dimensional structural diagram of the base according to one embodiment of the present application. In this embodiment, two support portions 611 are provided on opposite sides of the base 61, and each fixing portion 30 abuts against one of the support portions 611 away from the bottom surface of the arc-shaped shear portion 10.

[0144] In this embodiment, two support portions 611 are provided on opposite sides of the base 61, each support portion 611 protruding from the side of the base 61. In addition to fixing the fixing portion 30 to the base 61, the fixing portion 30 can also abut against one of the support portions 611 with its bottom surface facing away from the bottom surface of the arc-shaped shearing portion 10. In other words, the lower surface of the fixing portion 30 abuts against the upper surface of the support portion 611, thereby improving the stability of the moving blade 1.

[0145] Optionally, the surface of the support portion 611 near the stationary blade assembly 50 is flush with the outer side of the fixing portion 30, thereby preventing the distance between the moving blade assembly 60 and the stationary blade assembly 50 from being reduced due to the arrangement of the support portion 611.

[0146] In this embodiment, the support portion 611 has a protrusion 612 on the side opposite to the base 61, and the protrusion 612 can abut against the inner side of the stationary blade assembly 50. A protrusion 612 can also be provided on the side of the support portion 611 opposite to the base 61. Although the protrusion 612 reduces the gap between the moving blade assembly 60 and the stationary blade assembly 50, causing the protrusion 612 to abut against the inner side of the stationary blade assembly 50, the protrusion 612 reduces the contact area when the moving blade assembly 60 abuts against the stationary blade assembly 50, thereby reducing friction.

[0147] Optionally, the surface of the protrusion 612 facing away from the support 611 is an arc surface, which further reduces the contact area when the protrusion 612 abuts against the inner side of the stationary blade assembly 50, and further reduces the friction.

[0148] Please refer to this again. Figures 11-12 In this embodiment, the stationary blade assembly 50 includes a stationary blade 2 and a first clamping member 51 and a second clamping member 52 disposed on opposite sides of the stationary blade 2. The first clamping member 51 is closer to the moving blade 1 than the second clamping member 52. The blade head module 3 satisfies at least one of the following conditions: the distance between the outer side of the fixing part 30 and the inner side of the first clamping member 51 (e.g., ...) Figure 12 As shown in L15, the distance between the outer surface of the protrusion 612 and the inner surface of the first clamping member 51 (as shown in L15) is 0.1mm-1mm. Figure 12 As shown in L16, the minimum distance between the first clamping member 51 and the transition portion 20 of the moving blade 1 (as shown in L16) is 0.1mm-1mm. Figure 12 The thickness (as shown in L17) is 0.2mm-3mm.

[0149] The stationary blade assembly 50 consists of a stationary blade 2, a first clamping member 51, and a second clamping member 52. The first clamping member 51 and the second clamping member 52 clamp the end of the stationary blade 2 internally, and the first clamping member 51, the second clamping member 52, and the stationary blade 2 can be fixed together by means of through welding or other methods. One first clamping member 51 and one second clamping member 52 clamp one end of the stationary blade 2, and another first clamping member 51 and another second clamping member 52 clamp the other end of the stationary blade 2. The first clamping member 51 is closer to the moving blade 1 than the second clamping member 52, so the first clamping member 51 can also be understood as the inner clamping member, and the second clamping member 52 can also be understood as the outer clamping member. The distance between the stationary blade assembly 50 and the moving blade assembly 60 can be understood as the distance between various positions of the first clamping member 51 and the moving blade assembly 60.

[0150] In the first embodiment, the distance between the outer surface of the fixing part 30 and the inner surface of the first clamping member 51 can be 0.1mm-1mm. If the distance between the outer surface of the fixing part 30 and the inner surface of the first clamping member 51 is too small, for example, less than 0.1mm, the clearance space will be too small, and the fixing part 30 and the first clamping member 51 will easily interfere with each other. If the distance between the outer surface of the fixing part 30 and the inner surface of the first clamping member 51 is too large, for example, greater than 1mm, the fixing part 30 will be set too far inward, thereby increasing the length of the transition part 20 and reducing the strength and stability of the moving blade 1. Therefore, this embodiment, by making the distance between the outer surface of the fixing part 30 and the inner surface of the first clamping member 51 0.1mm-1mm, can ensure both the clearance between the first clamping member 51 and the fixing part 30 and the strength of the moving blade 1.

[0151] Optionally, the distance between the outer side of the fixing part 30 and the inner side of the first clamping member 51 can be 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, or 1mm. In this embodiment, only a distance of 0.5mm between the outer side of the fixing part 30 and the inner side of the first clamping member 51 is used for illustrative purposes.

[0152] In the second embodiment, the distance between the outer surface of the protrusion 612 and the inner surface of the first clamping member 51 can be 0.1mm-1mm. If the distance between the outer surface of the protrusion 612 and the inner surface of the first clamping member 51 is too small, for example, less than 0.1mm, the clearance space will be too small, and the protrusion 612 and the first clamping member 51 will easily interfere with each other. If the distance between the outer surface of the protrusion 612 and the inner surface of the first clamping member 51 is too large, for example, greater than 1mm, the fixing part 30 will be set too far inward, thereby increasing the length of the transition part 20 and reducing the strength and stability of the moving blade 1. Therefore, this embodiment ensures both the clearance between the first clamping member 51 and the fixing part 30 and the strength of the moving blade 1 by setting the distance between the outer surface of the protrusion 612 and the inner surface of the first clamping member 51 to 0.1mm-1mm.

[0153] Optionally, the distance between the outer side of the protrusion 612 and the inner side of the first clamping member 51 can be 0.1mm, 0.2mm, 0.26mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, or 1mm. In this embodiment, only a distance of 0.26mm between the outer side of the protrusion 612 and the inner side of the first clamping member 51 is used for illustrative purposes.

[0154] In the third embodiment, the minimum distance between the first clamping member 51 and the transition portion 20 of the moving blade 1 can be 0.2mm-3mm. If the minimum distance between the first clamping member 51 and the transition portion 20 of the moving blade 1 is too small, for example, less than 0.2mm, the first clamping member 51 is prone to interfering with the transition portion 20, thereby damaging the transition portion 20. If the minimum distance between the first clamping member 51 and the transition portion 20 of the moving blade 1 is too large, for example, greater than 3mm, the contact area and shearing area between the moving blade 1 and the stationary blade 2 will be reduced, thus reducing the shearing efficiency. Therefore, by setting the minimum distance between the first clamping member 51 and the transition portion 20 of the moving blade 1 to 0.2mm-3mm, this embodiment can avoid interference between the first clamping member 51 and the transition portion 20, and also ensure the contact area and shearing area between the moving blade 1 and the stationary blade 2, thereby improving the shearing efficiency.

[0155] Optionally, the minimum distance between the first clamping member 51 and the transition portion 20 of the moving blade 1 can be influenced by various factors, such as the material and thickness of the first clamping member 51. When the first clamping member 51 is a steel sheet, its thickness can be 0.2 mm. When the first clamping member 51 is a plastic sheet, its thickness can be 0.6 mm. Alternatively, the central angle and curvature of the arc-shaped shearing portion 10 can also affect the minimum distance between the first clamping member 51 and the transition portion 20 of the moving blade 1. Or, the central angle and curvature of the first sub-transition portion 21 and the second sub-transition portion 22 can also affect the minimum distance between the first clamping member 51 and the transition portion 20 of the moving blade 1.

[0156] Optionally, the minimum distance between the first clamping member 51 and the transition portion 20 of the moving blade 1 can be 0.2mm, 0.45mm, 0.6mm, 1.0mm, 1.4mm, 1.8mm, 2.2mm, 2.6mm, or 3mm. This embodiment is only illustrated with the minimum distance of 0.45mm between the first clamping member 51 and the transition portion 20 of the moving blade 1.

[0157] It is worth noting that this embodiment may satisfy only one of the first embodiment, the second embodiment, and the third embodiment, or any two of the first embodiment, the second embodiment, and the third embodiment, or simultaneously satisfy the first embodiment, the second embodiment, and the third embodiment. This embodiment is only illustrated by simultaneously satisfying the first embodiment, the second embodiment, and the third embodiment.

[0158] Please refer to Figure 14 , Figure 14 for Figure 10 The diagram shows a partial enlarged view of the cutter head module. In this embodiment, the cutter head module 3 may further include a mounting cover 70, and the second clamping member 52 in the stationary cutter assembly 50 may be fixed to the mounting cover 70 by welding or other means. Furthermore, a support platform 71 is provided on the inner side of the mounting cover 70, which can be used to support the end of the stationary cutter 2.

[0159] Please refer to Figure 15 , Figure 15 for Figure 12 The diagram shows a cross-sectional view of the cutter head module when it is engaged with the housing of the cutter head device. In this embodiment, the stationary cutter assembly 50 includes a stationary cutter 2, which includes a middle portion 41 and an edge portion 42 along its bending direction. The middle portion 41 is provided with a plurality of mesh holes 40 arranged in an array. The edge portion 42 is disposed within the housing 80 of the cutter head device 4, such that at least a portion of the middle portion 41 protrudes from the housing 80.

[0160] Along the curvature of the stationary blade 2, it can be divided into a middle portion 41 and an edge portion 42. The middle portion 41 is used to open multiple mesh holes 40 arranged in the aforementioned array, while the edge portion 42 is used to clamp and fix it with the first clamping member 51 and the second clamping member 52. In this embodiment, the edge portion 42, and even the first clamping member 51 and the second clamping member 52 on opposite sides of the edge portion 42, can be jointly disposed within the housing 80 of the blade head device 4, so that only part or all of the middle portion 41 protrudes from the housing 80, while the edge portion 42 is completely hidden within the housing 80. This ensures that all parts of the stationary blade 2 protruding from the housing 80 have mesh holes 40, allowing hair to enter, and there are no parts without mesh holes 40, further improving cutting efficiency.

[0161] In this embodiment, the stationary blade assembly 50 includes a stationary blade 2, which has a plurality of mesh holes 40 arranged in an array. Along the bending direction of the stationary blade 2, the mesh holes 40 at the edge can extend beyond the edge of the shearing blade 10a of the moving blade 1, or the mesh holes 40 at the edge do not extend beyond the edge of the shearing blade 10a of the moving blade 1.

[0162] For the middle portion 41, since multiple mesh holes 40 are formed in the middle portion 41, and the outer surface of the moving blade 1 is attached to the inner surface of the middle portion 41, the mesh holes 40 correspond to the cutting edge 10a of the moving blade 1. Along the bending direction of the stationary blade 2, in this embodiment, the outermost mesh holes 40 can extend beyond the edge of the cutting edge 10a of the moving blade 1, meaning that the cutting edge 10a does not correspond to all the mesh holes 40; some mesh holes 40 extend beyond the cutting edge 10a. This reduces the contact area between the stationary blade 2 and the moving blade 1, thereby reducing friction and the heat generated by friction. Alternatively, in this embodiment, the edge mesh holes 40 can not extend beyond the edge of the cutting edge 10a of the moving blade 1, meaning that the cutting edge 10a corresponds to all the mesh holes 40, and no mesh holes 40 correspond to the edge of the cutting edge 10a. This ensures that every hair passing through the mesh hole 40 can be cut by the moving blade 1, improving cutting efficiency.

[0163] This embodiment is only illustrated schematically, with the edge mesh 40 extending beyond the edge of the shearing blade 10a of the moving blade 1. Of course, in other embodiments, the edge mesh 40 may be flush with the edge of the shearing blade 10a of the moving blade 1.

[0164] In this embodiment, when the mesh 40 at the edge can extend beyond the edge of the shearing blade 10a of the moving blade 1, the middle portion 41 extending beyond the edge of the shearing blade 10a is also used to be disposed within the housing 80 of the blade head device 4.

[0165] Since the edge portion 42 is entirely housed within the housing 80 of the blade head assembly 4, when the mesh 40 of the edge extends beyond the edge of the shearing blade 10a of the moving blade 1, this embodiment allows a portion of the middle portion 41 to protrude from the housing 80. Specifically, the middle portion 41 extending beyond the edge of the shearing blade 10a can also be housed within the housing 80 of the blade head assembly 4, while the middle portion 41 corresponding to the shearing blade 10a protrudes from the housing 80. This reduces friction and ensures that the mesh 40 of the middle portion 41 protruding from the housing 80 corresponds to the shearing blade 10a, guaranteeing that every hair passing through the mesh 40 can be cut by the moving blade 1, thus improving cutting efficiency.

[0166] Please refer to this as well. Figures 16-17 , Figure 16 This is a three-dimensional structural diagram of the cutter head device in one embodiment of this application. Figure 17 for Figure 16 The exploded view of the cutting head device is shown. This embodiment provides a cutting head device 4, which includes a housing 80 and a cutting head module 3 as provided in the above embodiments of this application, the cutting head module 3 being mounted on the housing 80.

[0167] The cutting head device 4 consists of a housing 80 and a cutting head module 3. The housing 80 is mainly used to install the cutting head module 3, and the specific structure of the housing 80 will not be described in detail in this embodiment. The cutting head module 3 mentioned in this embodiment can also be called a short-beard cutting head module 3. In addition, the cutting head device 4 may also include a long-beard cutting head module 4a. The short-beard cutting head module 3 and the long-beard cutting head module 4a are jointly installed on the housing 80. For example, the cutting head device 4 includes two short-beard cutting head modules 3 and one long-beard cutting head module 4a, with the two short-beard cutting head modules 3 located on opposite sides of the long-beard cutting head module 4a.

[0168] The cutter head device 4 provided in this embodiment, by employing the cutter head module 3 provided in the above-described embodiments of this application, allows the arc-shaped shearing portion 10 in this embodiment to extend further along the bending direction when the distance between the two fixing portions 30 is the same as the distance between the two fixing portions 30 in the related art. This increases the contact area and shearing area between the moving blade 1 and the stationary blade 2, thereby improving the shearing efficiency. Subsequently, only the transition portion 20 is needed to connect the extended arc-shaped shearing portion 10 to the fixing portion 30. Specifically, in this embodiment, the central angle of the arc-shaped shearing portion 10 is 135°-160°; and / or, the arc length of the arc-shaped shearing portion 10 is 5mm-10mm, which is greater than the central angle and arc length of the arc-shaped shearing portion 10 in the related art.

[0169] In summary, by setting the blade module 3 with the above-described structure, this embodiment makes the central angle of the arc-shaped shearing part 10 135°-160°; and / or the arc length of the arc-shaped shearing part 10 5mm-10mm, which can increase the contact area between the arc-shaped shearing part 10 and the stationary blade 2, thereby increasing the shearing area and thus improving the shearing efficiency.

[0170] Please refer to this as well. Figures 18-20 , Figure 18 This is a three-dimensional structural diagram of a hair trimmer according to one embodiment of this application. Figure 19 for Figure 18 An exploded view of one embodiment of the hair trimmer shown. Figure 20 for Figure 19 An exploded view of another embodiment of the hair trimmer shown. This embodiment provides a hair trimmer 5, which includes a main unit 90 and a blade assembly 4 as provided in the above embodiments of this application. The main unit 90 includes a housing 91 and a drive module 92. The housing 80 of the blade assembly 4 is mounted on the housing 91. The transmission component 920 of the drive module 92 is connected to the moving blade assembly 60.

[0171] The hair trimmer 5 consists of a main unit 90 and a blade assembly 4. The main unit 90 includes a housing 91 and a drive module 92. The blade assembly 4 can be mounted on the housing 91, and part of the drive module 92 can be located inside the housing 91. The transmission component 920 of the drive module 92 can protrude from the housing 91. The transmission component 920 can be connected to the base 61 of the moving blade assembly 60 in the blade assembly 4, and the transmission component 920 drives the base 61 and the moving blade 1 to reciprocate. In other embodiments, the hair trimmer 5 may also include other components such as a power supply.

[0172] The hair trimmer 5 provided in this embodiment, by employing the blade device 4 provided in the above-described embodiment of this application, allows the arc-shaped cutting portion 10 in this embodiment to extend further along the bending direction when the distance between the two fixing portions 30 is the same as the distance between the two fixing portions 30 in the related art. This increases the contact area and cutting area between the moving blade 1 and the stationary blade 2, thereby improving cutting efficiency. Subsequently, only the transition portion 20 is needed to connect the extended arc-shaped cutting portion 10 to the fixing portion 30. Specifically, in this embodiment, the central angle of the arc-shaped cutting portion 10 is 135°-160°; and / or, the arc length of the arc-shaped cutting portion 10 is 5mm-10mm, which is greater than the central angle and arc length of the arc-shaped cutting portion 10 in the related art.

[0173] In summary, by setting the blade device 4 with the above-described structure, the central angle of the arc-shaped shearing part 10 is 135°-160°; and / or the arc length of the arc-shaped shearing part 10 is 5mm-10mm, which can increase the contact area between the arc-shaped shearing part 10 and the stationary blade 2, thereby increasing the shearing area and thus improving the shearing efficiency.

[0174] In the description of this application, 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", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.

[0175] Furthermore, the terms "first" and "second" 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 as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise expressly specified. Moreover, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0176] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a 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, or the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0177] The foregoing has provided a detailed description of the embodiments of this application, elucidating and explaining the principles and implementation methods of this application. These descriptions are merely for the purpose of aiding understanding the method and core ideas of this application. However, the content of this specification should not be construed as a limitation of this application. Those skilled in the art can make various modifications and variations to this application without departing from its spirit and scope. These modifications and variations fall within the scope of the claims of this application and their equivalents.

Claims

1. A moving blade, characterized by, The moving blade is used to cooperate with the stationary blade and can reciprocate relative to the stationary blade. The stationary blade is located on the outside of the moving blade. The moving blade includes an arc-shaped shearing part, two transition parts, and two fixing parts. The outer side of the arc-shaped shearing part is used to fit against the inner side of the stationary blade. Each of the transition parts is connected to one end of the arc-shaped shearing part and one of the fixing parts at opposite ends. The distance between the opposite ends of the arc-shaped shearing part is greater than the distance between the two fixing parts. The central angle of the arc-shaped shearing part is 135°-160°; and / or, the arc length of the arc-shaped shearing part is 5mm-10mm.

2. The moving knife as claimed in claim 1, wherein Along the reciprocating motion direction of the moving blade, the arc-shaped shearing part includes a plurality of first shearing blades spaced apart, and each transition part includes a first sub-transition part and a second sub-transition part. One end of the first sub-transition part is connected to the end of the arc-shaped shearing part, the other end of the first sub-transition part is connected to one end of the second sub-transition part, and the other end of the second sub-transition part is connected to the fixing part. Each of the first sub-transition portions protrudes away from the other first sub-transition portion, and each of the second sub-transition portions protrudes towards the other second sub-transition portion. A portion of the outer side surface of the first sub-transition portion is used to fit against the inner side surface of the stationary blade. Along the reciprocating motion direction of the moving blade, the first sub-transition portion used to fit against the inner side surface of the stationary blade includes a plurality of second shearing blades spaced apart, and each second shearing blade is connected to a first shearing blade.

3. The moving knife as claimed in claim 2, wherein Both the first sub-transition portion and the second sub-transition portion are arc-shaped.

4. The moving knife as claimed in claim 3, wherein The central angle of the first sub-transition section is 70°-100°, and the central angle of the second sub-transition section is 55°-85°.

5. The moving knife as claimed in claim 4, wherein The central angle of the outer surface of the first sub-transition portion is greater than the central angle of the inner surface of the first sub-transition portion, and the central angle of the outer surface of the second sub-transition portion is greater than the central angle of the inner surface of the second sub-transition portion.

6. The moving knife as claimed in claim 2, wherein The second shearing blade extends to the apex of the first sub-transition portion, and the maximum distance between the two second shearing blades disposed opposite to each other in the two first sub-transition portions is 6mm-7mm.

7. The moving knife as claimed in claim 2, wherein The second shearing blade extends to the apex of the first sub-transition portion. The first shearing blade and the second shearing blade constitute the shearing blade of the moving blade. Along the arrangement direction of the plurality of shearing blades, the width of the shearing blade gradually increases from the middle to both ends of its bending direction. The width of the middle part of the shearing blade is 0.18mm-0.6mm, and the width of the end of the shearing blade is 0.28mm-0.8mm.

8. The moving knife as claimed in claim 7, wherein The stationary blade has multiple mesh holes arranged in an array, and along the arrangement direction of the multiple shearing blades, the maximum width of the shearing blades is smaller than the width of the mesh holes.

9. The moving knife as claimed in claim 7, wherein The stationary blade has multiple meshes arranged in an array, and a shearing gap is formed between two adjacent shearing blades. Along the arrangement direction of the multiple shearing blades, the width of the shearing gap gradually decreases from the middle to both ends of its bending direction. The minimum value of the shearing gap is greater than the sum of the width of one mesh and the spacing between two adjacent meshes.

10. The moving knife as claimed in claim 9, wherein The minimum value of the shear gap is 0.3mm-1mm, and the maximum value of the shear gap is 0.5mm-1.5mm.

11. The moving knife as claimed in claim 7, wherein The shearing blade includes a bonding surface, a first shearing surface, and a second shearing surface. The bonding surface is used to bond to the inner side of the stationary blade. The first shearing surface is bent and connected to the bonding surface, and the second shearing surface is bent and connected to the first shearing surface. The angle between the bonding surface and the first shearing surface is 30°-50°, and the angle between the first shearing surface and the second shearing surface is 130°-140°.

12. A moving knife according to any one of claims 1-11, characterized in that The top surface of the two fixing parts near the arc-shaped shearing part is lower than the end side surface of the arc-shaped shearing part.

13. A moving knife according to any one of claims 1-11, characterized in that The moving blade satisfies at least one of the following conditions: The wall thickness of the moving blade is 0.2mm-0.8mm; The distance between the outer surface of each of the fixed parts and the outermost end point of the moving blade is 0.4mm-0.8mm; The distance between the two fixing parts is 3.5mm-5.5mm.

14. A tool bit module, characterized by The cutter head module includes a stationary cutter assembly and a moving cutter assembly. The stationary cutter assembly is located outside the moving cutter assembly. The moving cutter assembly includes a base and a moving cutter as described in any one of claims 1-13. The fixed part of the moving cutter is fixed to the base. The base is used to connect the transmission component of the drive module.

15. The tool bit module of claim 14, wherein: The base has two support parts on opposite sides, and each of the fixing parts abuts against one of the support parts away from the bottom surface of the arc-shaped shearing part.

16. The cutter head module as described in claim 15, characterized in that, The support portion has a protrusion on the side opposite to the base, and the protrusion can abut against the inner side of the stationary blade assembly.

17. The tool bit module of claim 16, wherein, The stationary blade assembly includes a stationary blade and a first clamping member and a second clamping member disposed on opposite sides of the stationary blade. The first clamping member is closer to the moving blade than the second clamping member. The blade module satisfies at least one of the following conditions: The distance between the outer side of the fixing part and the inner side of the first clamping member is 0.1mm-1mm; The distance between the outer side of the protrusion and the inner side of the first clamping member is 0.1mm-1mm; The minimum distance between the first clamping member and the transition portion of the moving blade is 0.2mm-3mm.

18. The tool bit module of claim 14, wherein, The stationary blade assembly includes a stationary blade, which includes a middle portion and an edge portion along its bending direction. The middle portion is provided with a plurality of mesh holes arranged in an array, and the edge portion is configured to be disposed within the housing of the blade head device, such that at least a portion of the middle portion protrudes from the housing.

19. The tool bit module of claim 18, wherein, The stationary blade assembly includes a stationary blade with multiple mesh holes arranged in an array. Along the bending direction of the stationary blade, the mesh holes at the edge can extend beyond the edge of the shearing blade of the moving blade, or the mesh holes at the edge do not extend beyond the edge of the shearing blade of the moving blade.

20. The tool bit module of claim 19, wherein, When the mesh openings at the edge extend beyond the edge of the shearing blade of the moving blade, the middle portion extending beyond the edge of the shearing blade is also used to be disposed within the housing of the blade head device.

21. A tool bit assembly comprising: The cutting head device includes a housing and a cutting head module as described in any one of claims 14-20, wherein the cutting head module is disposed on the housing.

22. A hair trimmer characterized by The hair trimmer comprises a main machine and the cutter head device as claimed in claim 21, the main machine comprises a housing and a driving module, the housing of the cutter head device is arranged on the housing, and a transmission member of the driving module is connected with the moving cutter assembly.

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