A shaver

Abstract

This invention discloses a shaver, including a shaver head, a reciprocating drive device, and a drive housing. The shaver head includes a shaver holder, an outer shaver module, an inner shaver module, and a shaver linkage assembly. The outer shaver module includes an outer moving shaver assembly, and the inner shaver module includes an inner moving shaver assembly. The middle part of the shaver linkage assembly is rotatably mounted on the shaver holder. One end of the outer moving shaver assembly is floatingly connected to the shaver linkage assembly, and the other end of the inner moving shaver assembly is floatingly connected to the shaver linkage assembly. This allows the shaver linkage assembly to rotate and drive the other shaver to move in the opposite direction when one of the outer or inner moving shaver assemblies moves. The reciprocating drive device has an output shaft, and the outer moving shaver assembly and the output shaft are connected to either the outer or inner moving shaver assembly. The shaver linkage assembly connects the outer and inner moving shaver assemblies, so that when one of the outer or inner moving shaver assemblies moves, the shaver linkage assembly rotates and drives the other shaver to move in the opposite direction, reducing vibration and noise.

Description

Technical Field

[0001] This invention relates to the field of hair shaver technology, and more particularly to a hair shaver. Background Technology

[0002] In the field of personal care appliances, shavers, as a commonly used tool for removing body hair, are widely used in people's daily lives, helping them maintain smooth and clean skin and meeting their needs for personal image and hygiene in different scenarios. With consumers' increasing pursuit of quality of life and changing consumption concepts, higher demands are being placed on the performance and user experience of shavers, prompting continuous development and innovation in shaver technology. Currently, reciprocating shavers, due to their unique working principle and advantages, have gained favor among many consumers and are gradually becoming a popular product in the shaver market. The working principle of a reciprocating shaver is mainly based on a driver that drives the blade assembly in a high-frequency reciprocating linear motion. The high-speed relative motion between the moving blades and the stationary blades cuts the hair along the path of the moving blades, thus achieving the purpose of shaving. Compared to rotary shavers, this working method has significant advantages such as higher shaving efficiency, better conformity to skin contours, and better handling of coarse and stiff hair, making it particularly suitable for handling large areas of hair and dense hair.

[0003] However, existing reciprocating shavers have some design and structural problems that urgently need to be solved. Currently, in most reciprocating shavers, each blade assembly is driven by the output shaft of a single driver. In this design, multiple blade assemblies can only achieve synchronous movement; that is, all blade assemblies begin reciprocating simultaneously, and the direction, frequency, and amplitude of the movement are completely identical. While this synchronous movement mode simplifies the mechanical structure of the shaver to some extent and reduces manufacturing costs, it also brings many drawbacks.

[0004] Due to the inherent characteristics of reciprocating motion, the shaver assembly needs to frequently change direction. Within each cycle, the shaver assembly undergoes a transition from forward to reverse motion. This frequent directional change subjects the mechanical connection between the driver and the shaver assembly to significant impact and stress. On one hand, this impact causes the shaver to generate considerable noise during operation. The collisions between mechanical components when the shaver assembly rapidly changes direction also produce noticeable noise. This noise significantly impacts user comfort. On the other hand, the impact generated by frequent changes in direction also causes strong vibrations in the shaver. These vibrations are transmitted through the shaver's casing to the user's hand, making the vibrations clearly felt when the user holds the shaver. Prolonged vibration not only causes hand fatigue and discomfort but also...

[0005] Furthermore, in traditional designs, the inner and outer tool groups often rely on complex transmission structures to achieve coordinated operation. The inner and outer tool groups are generally arranged in a stacked manner, resulting in an excessively high overall assembly height and insufficient space utilization. Summary of the Invention

[0006] In order to overcome at least one of the defects described in the prior art, the present invention provides a shaver that can solve the problems of high noise and vibration caused by the synchronous and unidirectional movement of current multi-blade shavers, as well as the problem of excessive overall assembly height of the shaver caused by the stacked arrangement of the outer and inner blade groups.

[0007] The technical solution adopted by this invention to solve its problem is: A shaver includes a blade head, a reciprocating drive mechanism, and a drive housing. The cutting head includes: Knife holder; An outer blade module, the outer blade module including an outer moving blade assembly; An inner blade module, the inner blade module including an inner moving blade assembly; A tool assembly linkage component is rotatably mounted on the tool holder. The outer moving tool assembly is floatingly connected to one end of the tool assembly linkage component, and the inner moving tool assembly is floatingly connected to the other end of the tool assembly linkage component, so that when one of the outer moving tool assembly and the inner moving tool assembly moves, the tool assembly linkage component rotates and drives the other to move in the opposite direction. The reciprocating drive device has an output shaft, the reciprocating drive device is disposed inside the drive housing, and the output shaft extends to the outside of the drive housing; The external moving tool assembly is drivenly connected to the output shaft, or the internal moving tool assembly is drivenly connected to the output shaft; the external moving tool assembly is provided with a receiving space, and the internal moving tool assembly is at least partially disposed within the receiving space.

[0008] By adopting the above solution, the outer and inner moving blade components are connected through a blade linkage assembly. This allows the linkage assembly to rotate and cause the other to move in the opposite direction when one of the components moves. This reverse motion design can offset some of the impact and stress caused by the frequent reversal of the inner and outer moving blade components, significantly reducing noise and hand vibration during shaver operation and improving user comfort. The outer and inner moving blade components are floatingly connected to both ends of the linkage assembly. This structure allows the outer and inner moving blade components to adapt to height changes at both ends of the linkage assembly as it rotates, while still maintaining linear motion. Due to the reduced vibration and noise, users are less likely to experience hand fatigue during prolonged handheld operation, and the quieter operating environment enhances the overall personal care experience. The outer moving blade component has a receiving space, within which the inner moving blade component is at least partially housed, effectively reducing the stacking height when both components are installed simultaneously.

[0009] Furthermore, the outer blade module includes an outer movable blade and an outer movable blade holder, the outer movable blade is mounted on the outer movable blade holder, and the outer movable blade holder is provided with a first transmission groove; The first transmission unit is movably disposed within the first transmission groove, and the external moving tool holder is floatingly connected to the tool group linkage assembly.

[0010] Furthermore, the first transmission part includes a first sub-transmission part and a second sub-transmission part, the first sub-transmission part and the second sub-transmission part are respectively disposed on opposite sides of the swing member, the first transmission groove includes a first sub-transmission groove and a second sub-transmission groove, the first sub-transmission part is floatingly disposed in the first sub-transmission groove, and the second sub-transmission part is floatingly disposed in the second sub-transmission groove.

[0011] Furthermore, the inner blade module includes an inner moving blade and an inner moving blade holder, the inner moving blade is mounted on the inner moving blade holder, and the inner moving blade holder is provided with a second transmission groove; The second transmission unit is movably disposed within the second transmission groove, and the internal moving tool holder is floatingly connected to the tool group linkage assembly.

[0012] Furthermore, the second transmission part includes a third sub-transmission part and a fourth sub-transmission part, which are respectively disposed on opposite sides of the swing member. The second transmission groove includes a third sub-transmission groove and a fourth sub-transmission groove, with the third sub-transmission part floatingly disposed in the third sub-transmission groove and the fourth sub-transmission part floatingly disposed in the fourth sub-transmission groove.

[0013] By adopting the above scheme, the first transmission part is movably disposed within the first transmission groove, and the second transmission part is movably disposed within the second transmission groove (i.e., a structure where the shaft slides in the groove), thus forming a typical floating connection. The cooperation between the first transmission part and the first transmission groove, the second transmission part, and the second transmission groove allows the floating connection to adapt to changes in height and relative angle during the rotation of the tool assembly linkage, ensuring that the outer and inner moving tools always maintain linear motion.

[0014] Furthermore, due to the use of floating connections, extremely high coaxiality or alignment accuracy is not required when assembling the external tool post, internal tool post, and oscillating components. As long as the drive shaft can fall into the drive groove, it is sufficient. This greatly reduces the assembly difficulty and the stringent requirements for the machining accuracy of parts, which is beneficial for mass production and cost control.

[0015] Furthermore, at least two swing members are provided. The first transmission part at one end of all the swing members is floatingly connected to the outer moving blade, the rotating shaft in the middle is rotatably connected to the blade holder, and the second transmission part at the other end is floatingly connected to the inner moving blade.

[0016] By adopting the above scheme, a parallel mechanism consisting of a central fulcrum and floating drives at both ends, composed of at least two swinging components, can provide a more stable structural foundation during the high-frequency reciprocating swing of the inner and outer moving tools. Through multi-point balancing and floating self-adaptation, the tool assembly achieves ultimate stability in high-speed reciprocating motion.

[0017] Furthermore, the outer blade module also includes an outer stationary blade, and the inner blade module also includes an inner stationary blade. The outer stationary blade has an assembly hole in the middle, and both the inner stationary blade and the inner moving blade are disposed in the assembly hole. The outer stationary blade and the inner stationary blade are either separately configured or integrally formed.

[0018] By adopting the above solution, and placing both the inner stationary blade and the inner moving blade in the middle of the outer blade module, it is beneficial to select the type of outer blade module and inner blade module. The outer stationary blade and the inner stationary blade can be integrally formed or separately set, providing multiple setting forms for the outer stationary blade and the inner stationary blade. When the outer stationary blade and the inner stationary blade are integrally formed, the inner stationary blade holder that provides the mounting base for the inner stationary blade is not required, saving production costs.

[0019] Furthermore, the outer blade module also includes an outer elastic element, one end of which abuts against the blade holder and the other end of which abuts against the outer moving blade, so that the outer moving blade abuts against the outer stationary blade; And / or, the inner blade module further includes an inner elastic element, one end of which abuts against the blade holder or the outer moving blade holder, and the other end of which abuts against the inner moving blade, so that the inner moving blade abuts against the inner stationary blade.

[0020] By adopting the above solution, the external elastic element ensures the close contact between the external moving blade and the external stationary blade, thereby improving shaving stability. Similarly, the internal elastic element ensures the close contact between the internal moving blade and the internal stationary blade, thus improving shaving stability. Furthermore, multiple springs are provided, all of which are respectively located on opposite sides of the external moving blade, and one end of each spring abuts against the blade holder, and the other end of each spring abuts against the external moving blade; Alternatively, the external elastic element is a spring sheet, which is arranged along the length direction of the external moving blade, with one end of the spring sheet abutting against the blade holder and the other end abutting against the external moving blade.

[0021] By adopting the above solutions, springs are less expensive and provide stable support; while the spring sheet structure can also ensure the support effect for externally moving tools.

[0022] Furthermore, there are two spring pieces, which are respectively located on opposite sides of the outer moving blade along the length direction of the outer moving blade, and one end of each spring piece abuts against the blade holder, and the other end of each spring piece abuts against the outer moving blade.

[0023] By adopting the above scheme, a spring sheet structure is used, with two spring sheets respectively located on both sides of the outer moving blade. Compared with the whole spring sheet structure, this facilitates the production of the spring sheet and subsequent installation design.

[0024] Furthermore, the external stationary blade has teeth on at least one side, and the external stationary blade gradually convexes upward from the root of the teeth and the side opposite to the teeth to the middle of the mounting hole to form an arched structure; And / or, the corners of the external stationary blade are rounded.

[0025] By adopting the above scheme, the external stationary blade has teeth on at least one side, and the arched structure of the external stationary blade improves the smoothness of use. The rounded corners of the external stationary blade improve the comfort of use.

[0026] Furthermore, the external moving blade is riveted and fixed to the external moving blade holder.

[0027] By adopting the above solution, riveting does not require pre-drilled threaded holes, countersunk grooves, or wrench operating space as with screw connections, nor does it require space for glue curing. This allows the external blade holder structure to be designed to be thinner and more compact, which is beneficial for optimizing the internal space of the shaver and for making the whole machine lighter and smaller.

[0028] Furthermore, the outer wall of the inner moving tool holder is provided with a first mounting pin, and the inner moving tool is mounted on the first mounting pin.

[0029] By adopting the above solution, the outer wall of the inner moving tool holder is provided with a first mounting pin, which facilitates the fixed installation of the inner moving tool and the first mounting pin.

[0030] Furthermore, the inner blade module also includes an inner stationary blade, and the first mounting pin of the inner moving blade holder abuts against the inner wall of the inner stationary blade to limit the movement direction of the inner moving blade holder.

[0031] By adopting the above scheme, the first assembly pin abuts against the inner wall of the inner stationary tool, ensuring that the inner moving tool holder and the inner moving tool maintain a straight line motion during the movement process, and will not deviate in the axial direction of the first assembly pin.

[0032] Furthermore, the inner blade module also includes an inner stationary blade holder, which is provided with a second mounting pin, and the inner stationary blade is mounted on the second mounting pin.

[0033] By adopting the above solution, the internal stationary tool and the internal stationary tool holder are connected by the second assembly pin, which facilitates the assembly of the internal stationary tool.

[0034] Furthermore, the outer blade module also includes an outer stationary blade, and the inner blade module also includes an inner stationary blade. The outer stationary blade has an assembly hole in the middle, and both the inner stationary blade and the inner moving blade are disposed in the assembly hole.

[0035] By adopting the above scheme, and placing both the inner stationary tool and the inner moving tool in the middle of the outer tool module, it is beneficial to select the type of outer tool module and inner tool module.

[0036] Furthermore, the end of the tooth is provided with a protrusion that is arranged along the length direction of the external stationary blade.

[0037] By adopting the above-mentioned design, the teeth of the external static blade have protrusions, which increase the contact area with the skin during shaving. This distributes the pressure, which was originally concentrated at the tips of the teeth, more evenly, effectively reducing skin irritation during shaving and preventing discomfort such as redness and stinging. Furthermore, the protrusions are only located at the ends of the teeth and do not affect the distance between the roots of adjacent teeth, thus ensuring normal shaving efficiency.

[0038] Furthermore, the protrusion includes a straight section and a bent section, the straight section and the bent section are connected, the straight section is connected to the tooth, the bent section has a contact surface that contacts the skin, the bent section bends in a direction away from the contact surface, and the angle between the bent section and the straight section is greater than or equal to ninety degrees.

[0039] By adopting the above solution, the straight section is fixed to one end of the blade body, ensuring the stability of the contact surface between the blade body and the skin. The structure of the bent section changes the planar layout of the traditional blade, making the geometry of the contact area between the blade and the skin more in line with the curves of the human face, such as the chin, neck and other concave and convex areas, thereby increasing the actual contact area and reducing the occurrence of redness or stinging sensations on the skin.

[0040] Furthermore, the end of the protrusion away from the tooth has a rounded corner structure to guide hair into the space between adjacent teeth; And / or, the protrusion is provided with a guide structure at the end facing the tooth.

[0041] By adopting the above solution, the rounded corner structure acts as a transition zone, allowing the hair to naturally slide between adjacent teeth along the curved surface of the rounded corner structure after contacting the protrusion. This reduces the problem of failed cuts caused by misalignment of the beard hairs, improving overall shaving efficiency. Replacing the traditional right-angle design with a rounded corner structure avoids discomfort to the skin caused by the sharp corners at the end of the protrusion. At the same time, the curved surface of the rounded corner can more evenly distribute the pressure when in contact with the skin, further improving comfort. The guiding structure allows the external static blade to guide hairs into and out of the gaps between adjacent teeth in an orderly manner as it slides across the skin, preventing hair from being pulled and improving user comfort. This guiding structure also avoids discomfort caused by the sharp corners of the protruding parts. Furthermore, the surface of the guiding structure more evenly distributes pressure when in contact with the skin, further enhancing comfort.

[0042] In summary, the shaver provided by this invention has the following technical effects: 1. The outer and inner moving blade assemblies are connected by a blade assembly linkage component, so that when one of the outer and inner moving blade assemblies moves, the blade assembly linkage component rotates, causing the other to move in the opposite direction. This reverse motion design can offset some of the impact and stress caused by the frequent reversal of the inner and outer moving blade assemblies, thereby significantly reducing the noise of the shaver during operation and the vibration felt by the user's hand, and improving user comfort.

[0043] 2. The outer moving cutter assembly and the inner moving cutter assembly are respectively floatingly connected to both ends of the cutter group linkage assembly. This structure allows the outer moving cutter assembly and the inner moving cutter assembly to adapt to the height changes at both ends of the cutter group linkage assembly when the cutter group linkage assembly rotates, and the outer moving cutter assembly and the inner moving cutter assembly still move in a straight line.

[0044] 3. Due to reduced vibration and noise, users are less likely to experience hand fatigue during prolonged handheld operation, while the quieter operating environment enhances the overall personal care experience.

[0045] 4. The outer moving blade assembly is provided with a receiving space, and the inner moving blade assembly is at least partially located within the receiving space, which can effectively reduce the stacking height when the inner moving blade assembly and the outer moving blade assembly are installed at the same time. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the exploded structure of the shaver of the present invention; Figure 2 This is an exploded structural diagram of the shaver head portion of the present invention; Figure 3 This is a cross-sectional view of the tool assembly linkage component of the present invention in its assembled state; Figure 4 This is an exploded view of the assembled structure of the tool assembly linkage component of the present invention; Figure 5 This is a cross-sectional view of the cutting head portion of the present invention; Figure 6 This is a schematic diagram of the swing component structure of the present invention; Figure 7 This is an exploded view of the outer blade module of the present invention; Figure 8 This is an exploded view of the inner blade module of the present invention; Figure 9 This is a schematic diagram of the riveting structure between the external moving tool and the external moving tool holder of the present invention; Figure 10 This is a schematic diagram of the internal moving tool and internal moving tool holder structure of the present invention; Figure 11 This is a three-dimensional structural diagram of the inner blade module of the present invention; Figure 12 This is a schematic diagram of the internal stationary tool and internal stationary tool holder structure of the present invention; Figure 13 This is a schematic diagram of the external stationary blade structure of the present invention; Figure 14 for Figure 13 Enlarged view of part A; Figure 15 This is a cross-sectional view of the external stationary blade of the present invention; Figure 16 This is a schematic diagram of the cross-sectional structure of the invention using a spring mechanism; Figure 17 This is a schematic diagram of the cross-sectional structure of the spring-loaded device used in this invention.

[0047] The meanings of the reference numerals in the attached drawings are as follows: 1. Tool holder; 11. Connecting ear; 12. Clearance hole; 2. Outer tool module; 21. Outer moving tool; 211. Riveting hole; 22. Outer moving tool holder; 221. First transmission groove; 2211. First sub-transmission groove; 2212. Second sub-transmission groove; 222. Riveting post; 223. Limiting block; 23. Outer stationary tool; 231. Assembly hole; 232. Tooth; 235. Arch structure; 236. Rounded corner structure; 241. Spring; 242. Spring piece; 3. Inner tool module; 31. Inner moving tool; 32. Inner moving tool holder; 321. 3211, Third sub-transmission groove; 3212, Fourth sub-transmission groove; 322, First assembly pin; 33, Inner stationary tool; 331, Mesh; 34, Inner stationary tool holder; 341, Second assembly pin; 35, Inner elastic element; 4, Tool group linkage assembly; 41, Swinging element; 411, First transmission part; 4111, First sub-transmission part; 4112, Second sub-transmission part; 412, Rotating shaft; 413, Second transmission part; 4131, Third sub-transmission part; 4132, Fourth sub-transmission part; 5, Output shaft; 6, Reciprocating drive device; 7, Drive housing. Detailed Implementation

[0048] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described and discussed below with reference to the accompanying drawings. Obviously, what is described here is only a part of the examples of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the protection scope of this invention.

[0049] To facilitate understanding of the embodiments of the present invention, further explanations and descriptions will be provided below with reference to the accompanying drawings and specific embodiments, and these embodiments do not constitute a limitation on the embodiments of the present invention.

[0050] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 invention 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 invention.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0052] See Figures 1-17 This invention discloses a shaver, including a shaver head, a reciprocating drive device 6, and a drive housing 7. The shaver head includes a shaver holder 1, an outer shaver module 2, an inner shaver module 3, and a shaver linkage assembly 4. The outer shaver module 2 includes an outer moving shaver assembly, and the inner shaver module 3 includes an inner moving shaver assembly. The middle part of the shaver linkage assembly 4 is rotatably mounted on the shaver holder 1. One end of the outer moving shaver assembly is floatingly connected to the shaver linkage assembly 4, and the other end of the inner moving shaver assembly is floatingly connected to the shaver linkage assembly 4, so that when one of the outer moving shaver assembly and the inner moving shaver assembly moves, the shaver linkage assembly 4 rotates and drives the other to move in the opposite direction. The reciprocating drive device 6 has an output shaft 5 and is located inside the drive housing 7. The output shaft 5 extends to the outside of the drive housing 7. The outer moving shaver 21 is drivenly connected to the output shaft 5, or the inner moving shaver 31 is drivenly connected to the output shaft 5. The outer moving shaver assembly has a receiving space, and the inner moving shaver assembly is at least partially located in the receiving space.

[0053] Specifically, the outer blade module 2 includes an outer moving blade assembly, the inner blade module 3 includes an inner moving blade assembly, and the middle part of the blade linkage assembly 4 is rotatably mounted on the blade holder 1, allowing the blade linkage assembly 4 to rotate relative to the blade holder 1. One end of the outer moving blade assembly is floatingly connected to the blade linkage assembly 4, and the other end of the inner moving blade assembly is floatingly connected to the blade linkage assembly 4, so that when one of the outer or inner moving blade assembly moves, the blade linkage assembly 4 rotates, causing the other to move in the opposite direction. Specifically, the floating connection between the outer moving blade assembly and the blade linkage assembly 4 means that the movement of the outer moving blade assembly is not affected by changes in the height of the connection point between the blade linkage assembly 4 and the outer moving blade assembly relative to the outer moving blade assembly caused by the rotation of the blade linkage assembly 4, nor by changes in the angle between the connection point of the blade linkage assembly 4 and the outer moving blade assembly relative to the outer moving blade assembly. The blade linkage assembly 4 can drive the outer moving blade assembly to move in a straight line during rotation. The floating connection between the inner moving blade assembly and the blade linkage assembly 4 is similar to that between the outer moving blade assembly and the blade linkage assembly 4, and will not be elaborated further here. The reciprocating drive 6 has an output shaft 5, which is located inside the drive housing 7. The output shaft 5 extends to the outside of the drive housing 7, facilitating the transmission of power from the output shaft 5 to the outer moving blade 21 or the inner moving blade 31. The outer moving blade 21 is driven by the output shaft 5, or the inner moving blade 31 is driven by the output shaft 5. That is, the power from the output shaft 5 is transmitted to either the outer moving blade 21 or the inner moving blade 31. Due to the action of the blade assembly linkage component 4, regardless of whether the output shaft 5 drives the outer moving blade 21 or the inner moving blade 31, it can drive the other to move in the opposite direction; therefore, no limitation is made here. The outer moving blade assembly has a receiving space, and the inner moving blade assembly is at least partially located within the receiving space, effectively reducing the stacking height when the inner and outer moving blade assemblies are installed simultaneously. See details below. Figure 2As shown, the outer moving blade 21 of the outer moving blade assembly is provided with a groove, which forms a receiving space. The inner moving blade 31 and the inner moving blade holder 32 are at least partially assembled in the groove, which can effectively reduce the assembly height of the inner blade assembly and the outer blade assembly.

[0054] The working principle of the above structure is as follows: The output shaft 5 serves as the power source directly driving the shaver head. It can drive either the outer or inner moving blade assembly. Since the outer or inner moving blade assembly is floatingly connected to both ends of the blade linkage assembly 4, when one of them moves under the influence of the output shaft 5, it causes the blade linkage assembly 4 to rotate around the shaver seat 1. Consequently, the outer or inner moving blade assembly connected to the other end of the blade linkage assembly 4 is driven by the assembly to move in the opposite direction. This counteracts some of the impact and stress caused by the frequent reversal of the inner and outer moving blade assemblies, significantly reducing noise and hand vibration during shaver operation and improving user comfort. The floating connection between the outer and inner moving blade assemblies to both ends of the blade linkage assembly 4 allows them to adapt to height changes at both ends of the assembly while the shaver rotates, maintaining linear motion. With reduced vibration and noise, users are less likely to experience hand fatigue during prolonged handheld operation, while the quieter operating environment enhances the overall personal care experience.

[0055] It should be noted that the reciprocating drive device 6 can be used in conjunction with a reciprocating linear motor and a common output shaft 5 to directly drive the external or internal moving tool assembly to reciprocate; or the reciprocating drive device 6 can be used in conjunction with a common rotary motor and an eccentric output shaft 5 to drive the external or internal moving tool assembly to reciprocate linearly through the rotation of the output shaft 5.

[0056] In some embodiments, the cutter head and the drive housing 7 are magnetically connected to facilitate the disassembly and cleaning of the cutter head.

[0057] See Figures 2-4 As shown, in some embodiments, the tool assembly linkage component 4 includes a swing member 41. One end of the swing member 41 is provided with a first transmission part 411, the middle part is provided with a rotating shaft 412, and the other end is provided with a second transmission part 413. The rotating shaft 412 is rotatably mounted on the tool holder 1. The first transmission part 411 is floatingly connected to the outer moving tool 21, and the second transmission part 413 is floatingly connected to the inner moving tool 31.

[0058] Specifically, the swing member 41 is mounted on the tool holder 1 via a central pivot 412, which serves as a fulcrum. A first transmission part 411 and a second transmission part 413 are respectively located at both ends of the swing member 41, forming a simple and easy-to-install lever structure. When the outer moving tool 21 drives the first transmission part 411, the swing member 41 rotates around the pivot 412, causing the second transmission part 413 at the other end to drive the inner moving tool 31 in the opposite direction. The first transmission part 411 and the outer moving tool 21, and the second transmission part 413 and the inner moving tool 31, are all floatingly connected. The outer moving tool 21 and the inner moving tool 31 can adapt to the height changes at both ends of the tool assembly linkage 4, and both the outer moving tool 21 and the inner moving tool 31 still move in a straight line.

[0059] See Figures 2-4 As shown, optionally, the tool holder 1 is provided with two connecting ears 11 for mounting the rotating shaft 412. The two ends of the rotating shaft 412 are respectively mounted on one of the connecting ears 11, so that the rotating shaft 412 can form a stable connection with the tool holder 1.

[0060] See Figure 3 As shown, optionally, the tool holder 1 has a clearance hole 12 on the connecting lug 11 to allow the rotating shaft 412 to pass through the clearance hole 12 and be assembled onto the connecting lug 11. See Figures 2-7 As shown, in some embodiments, the outer blade module 2 further includes an outer movable blade holder 22, the outer movable blade 21 is mounted on the outer movable blade holder 22, and the outer movable blade holder 22 is provided with a first transmission groove 221; The inner tool module 3 also includes an inner moving tool holder 32, with an inner moving tool 31 mounted on the inner moving tool holder 32. The inner moving tool holder 32 is provided with a second transmission groove 321. The first transmission part 411 is movably disposed in the first transmission groove 221, and the external moving tool 21 forms a floating connection structure with the tool group linkage assembly 4 through the external moving tool holder 22. The second transmission unit 413 is movably disposed in the second transmission groove 321, and the inner moving blade 31 forms a floating connection structure with the blade assembly linkage component 4 through the inner moving blade holder 32.

[0061] Specifically, the outer tool module 2 also includes an outer moving tool holder 22, on which the outer moving tool 21 is mounted, allowing the outer moving tool 21 and the outer moving tool holder 22 to move synchronously. The outer moving tool holder 22 is provided with a first transmission groove 221, and the first transmission part 411 slides within the first transmission groove 221 to form a floating connection structure. The inner tool module 3 also includes an inner moving tool holder 32, on which the inner moving tool 31 is mounted, allowing the inner moving tool 31 and the inner moving tool holder 32 to move synchronously. The inner moving tool holder 32 is provided with a second transmission groove 321, and the second transmission part 413 slides within the second transmission groove 321 to form a floating connection structure. The depth direction of the first transmission groove 221 and the second transmission groove 321 can be the height direction to meet the floating requirement; of course, they can also be inclined, which is not limited here, as long as they do not interfere with the linear movement of the inner moving tool 31 and the outer moving tool 21. By employing the cooperation method of the first transmission part 411 and the first transmission groove 221, and the second transmission part 413 and the second transmission groove 321, extremely high coaxiality or centering accuracy is not required when assembling the outer moving tool post 22, the inner moving tool post 32 and the swinging component 41. As long as the transmission shaft can fall into the transmission groove, it is sufficient. This greatly reduces the assembly difficulty and the stringent requirements for the machining accuracy of the parts, which is conducive to mass production and cost control.

[0062] Optionally, the external moving tool holder 22 is provided with a limiting block 223, which is used to abut against the tool holder 1 when the external moving tool holder 22 is assembled with the tool holder 1, thereby facilitating the overall assembly of the tool head.

[0063] See Figures 4-7 As shown, in some embodiments, the first transmission part 411 includes a first sub-transmission part 4111 and a second sub-transmission part 4112. The first sub-transmission part 4111 and the second sub-transmission part 4112 are respectively disposed on opposite sides of the swing member 41. The first transmission groove 221 includes a first sub-transmission groove 2211 and a second sub-transmission groove 2212. The first sub-transmission part 4111 is floatingly disposed in the first sub-transmission groove 2211, and the second sub-transmission part 4112 is floatingly disposed in the second sub-transmission groove 2212.

[0064] The second transmission part 413 includes a third sub-transmission part 4131 and a fourth sub-transmission part 4132, which are respectively disposed on opposite sides of the swing member 41. The second transmission groove 321 includes a third sub-transmission groove 3211 and a fourth sub-transmission groove 3212, with the third sub-transmission part 4131 floating in the third sub-transmission groove 3211 and the fourth sub-transmission part 4132 floating in the fourth sub-transmission groove 3212.

[0065] Specifically, the first transmission unit 411 includes a first sub-transmission unit 4111 and a second sub-transmission unit 4112, which are respectively disposed on opposite sides of the swing member 41. The first transmission groove 221 includes a first sub-transmission groove 2211 and a second sub-transmission groove 2212, with the first sub-transmission unit 4111 disposed in the first sub-transmission groove 2211 and the second sub-transmission unit 4112 disposed in the second sub-transmission groove 2212. By providing the first sub-transmission unit 4111 and the second sub-transmission unit 4112 on opposite sides of the swing member 41, the transmission of force is made more stable, thereby ensuring the stable motion posture of the swing member 41. Similarly, the second transmission part 413 includes a third sub-transmission part 4131 and a fourth sub-transmission part 4132, which are respectively disposed on opposite sides of the swing member 41. The second transmission groove 321 includes a third sub-transmission groove 3211 and a fourth sub-transmission groove 3212, with the third sub-transmission part 4131 floating in the third sub-transmission groove 3211 and the fourth sub-transmission part 4132 floating in the fourth sub-transmission groove 3212. By providing the third sub-transmission part 4131 and the fourth sub-transmission part 4132 on opposite sides of the swing member 41, the transmission of force is made more stable.

[0066] See Figure 2 and Figure 5 As shown, in some embodiments, the outer blade module 2 further includes an outer elastic member, one end of which abuts against the blade holder 1 and the other end against the outer moving blade 21, so that the outer moving blade 21 abuts against the outer stationary blade 23.

[0067] And / or, the inner blade module 3 also includes an inner elastic member 35, one end of which abuts against the blade holder 1 or the outer moving blade holder 22, and the other end abuts against the inner moving blade 31, so that the inner moving blade 31 abuts against the inner stationary blade 33.

[0068] Specifically, the outer blade module 2 also includes an outer elastic element, one end of which abuts against the blade holder 1, and the other end against the outer moving blade 21, so that the outer moving blade 21 remains in contact with the outer stationary blade 23, thereby improving stability during shaving. The inner blade module 3 also includes an inner elastic element 35, one end of which abuts against the blade holder 1 or the outer moving blade holder 22, and the other end against the inner moving blade 31, so that the inner moving blade 31 remains in contact with the inner stationary blade 33, thereby improving stability during shaving.

[0069] See Figure 16 and Figure 17 As shown, further, multiple springs 241 are provided, and all springs 241 are respectively provided on opposite sides of the outer moving blade 21, and one end of each spring 241 abuts against the blade holder 1, and the other end abuts against the outer moving blade 21; Alternatively, the external elastic element is a spring sheet 242, which is arranged along the length of the external moving blade 21. One end of the spring sheet 242 abuts against the blade holder 1, and the other end abuts against the external moving blade 21.

[0070] Furthermore, there are two spring pieces 242. The two spring pieces 242 are respectively located on opposite sides of the outer moving knife 21 along the length direction of the outer moving knife 21, and one end of each spring piece 242 abuts against the knife holder 1, and the other end abuts against the outer moving knife 21.

[0071] Specifically, the spring 241 has a lower cost and provides stable support; the structure of the spring piece 242, with two spring pieces 242 respectively located on both sides of the outer moving blade 21, is more convenient for the production of the spring piece 242 and subsequent installation design compared to the structure of a single spring piece 242.

[0072] See Figure 2 As shown, in some embodiments, the outer blade module 2 further includes an outer stationary blade 23, and the inner blade module 3 further includes an inner stationary blade 33. The outer stationary blade 23 is provided with an assembly hole 231 in the middle, and the inner stationary blade 33 and the inner moving blade 31 are both provided in the assembly hole 231. The outer stationary blade 23 and the inner stationary blade 33 are either separately configured or integrally formed.

[0073] Specifically, the outer blade module 2 also includes an outer stationary blade 23, and the inner blade module 3 also includes an inner stationary blade 33. The outer stationary blade 23 has a mounting hole 231 in its center. Both the inner stationary blade 33 and the inner moving blade 31 are located within the mounting hole 231, thus forming a structure where the outer blade module 2 surrounds the inner blade module 3. As a reciprocating shaver, this structure allows the outer blade module 2 to be designed as an open-type blade assembly primarily for shaving longer hairs, while the inner blade module 3 is designed for shorter hairs, thus expanding the shaver's applicability. The outer stationary blade 23 and the inner stationary blade 33 can be integrally formed or separate, providing various configuration options. When the outer stationary blade 23 and the inner stationary blade 33 are integrally formed, the inner stationary blade holder 34, which provides the mounting base for the inner stationary blade 33, is not required, saving production costs.

[0074] See Figures 13-17 As shown, in some embodiments, the outer stationary blade 23 has teeth 232 on at least one side, and the outer stationary blade 23 gradually convexes upward from the root of its teeth 232 and the side opposite to the teeth 232 to the middle of the mounting hole 231 to form an arched structure 235; and / or, the corners of the outer stationary blade 23 are rounded structures 236.

[0075] Optionally, teeth 232 may be provided on both opposite sides of the external stationary blade 23.

[0076] Specifically, the outer stationary blade 23 has teeth 232 on both sides. The outer stationary blade 23 forms an arched structure 235 with a gradually upward convex structure from the root of the teeth 232 on both sides to the middle of the mounting hole 231. This arched structure 235 allows the user to slide the outer stationary blade 23 more smoothly against the skin to the desired position during use (for example, when the outer stationary blade 23 and the outer moving blade 21 are needed to cut hair, and when the inner stationary blade 33 and the inner moving blade 31 are needed to cut hair). The corners of the outer stationary blade 23 are rounded structures 236, which improves the comfort during use.

[0077] See Figure 2 , Figure 7 and Figure 9 As shown, in some embodiments, the external moving blade 21 is riveted to the external moving blade holder 22.

[0078] Specifically, the external blade 21 is riveted to the external blade holder 22. Riveting does not require pre-drilled threaded holes, countersunk grooves, or wrench operation space as with screw connections, nor does it require space for glue curing. This allows the external blade holder 22 to be designed to be thinner and more compact, which is beneficial for optimizing the internal space of the shaver and for making the whole machine lighter and smaller.

[0079] See Figure 2 , Figure 7 and Figure 9 As shown, optionally, a riveting post 222 can be provided on the outer moving tool holder 22, and a riveting hole 211 can be provided on the outer moving tool 21. The outer moving tool holder 22 and the outer moving tool 21 are riveted together by fitting the riveting post 222 through the riveting hole 211. Of course, a riveting post 222 can also be provided on the outer moving tool 21, and a riveting hole 211 can be provided on the outer moving tool holder 22. This is not limited here.

[0080] Optionally, multiple riveting posts 222 can be provided on the outer moving tool holder 22, and multiple riveting holes 211 can be provided on the outer moving tool 21. The number and position of the riveting posts 222 and riveting holes 211 are set accordingly. When multiple riveting posts 222 and multiple riveting holes 211 are provided, the multiple riveting posts 222 and multiple riveting holes 211 can be respectively set at both ends of the outer moving tool 21 and the outer moving tool holder 22 in the length direction, thereby effectively improving stability.

[0081] See Figure 7 and Figure 9 As shown, optionally, the external moving tool 21 can also be assembled onto the external moving tool holder 22 by means of a snap-fit ​​structure, welding, or bonding, which is not limited here.

[0082] See Figure 10 As shown, in some embodiments, the outer wall of the inner moving tool holder 32 is provided with a first mounting pin 322, and the inner moving tool 31 is mounted on the first mounting pin 322.

[0083] Specifically, the outer wall of the inner moving tool holder 32 is provided with a first mounting pin 322 to facilitate the assembly of the inner moving tool 31. The inner moving tool 31 is mounted on the first mounting pin 322, thereby enabling the inner moving tool 31 to move stably and synchronously with the inner moving tool holder 32. The first mounting pin 322 on the outer wall of the inner moving tool holder 32 facilitates the fixed installation of the inner moving tool 31 and the first mounting pin 322.

[0084] Alternatively, the internal moving tool 31 may be provided with a notch or through hole to fit into the first mounting pin 322, which is not limited here.

[0085] Optionally, multiple first assembly pins 322 can be provided as needed, and multiple first assembly pins 322 can also be provided on one or both sides of the inner moving tool holder 32 as needed, without limitation.

[0086] See Figure 11 As shown, the inner tool module 3 further includes an inner stationary tool 33, and the first mounting pin 322 of the inner moving tool holder 32 abuts against the inner wall of the inner stationary tool 33 to limit the movement direction of the inner moving tool holder 32.

[0087] Specifically, based on the structure of the inner moving tool holder 32 with the first mounting pin 322, the first mounting pin 322 abuts against the inner wall of the inner stationary tool 33, thereby restricting the movement direction of the inner moving tool holder 32. That is, through the abutment of the first mounting pin 322 against the inner wall of the inner stationary tool 33, one side of the inner moving tool holder 32 abuts against the inner wall of the inner stationary tool 33 through the first mounting pin 322, and the other side abuts against the inner wall of the inner stationary tool 33 through the inner moving tool holder 32 itself or the additionally provided first mounting pin 322. This ensures that the inner moving tool holder 32 and the inner moving tool 31 always maintain linear movement during the movement process and will not deviate in the axial direction of the first mounting pin 322.

[0088] See Figure 12 As shown, in some embodiments, the inner blade module 3 further includes an inner stationary blade holder 34, which is provided with a second mounting pin 341, and the inner stationary blade 33 is mounted on the second mounting pin 341.

[0089] Specifically, the inner stationary tool holder 34 is provided with a second mounting pin 341, and the inner stationary tool 33 is mounted on the second mounting pin 341, so that the inner stationary tool 33 can move stably and synchronously with the inner stationary tool holder 34. The outer wall of the inner stationary tool holder 34 is provided with a second mounting pin 341 to facilitate the fixed installation of the inner moving tool 31 and the second mounting pin 341.

[0090] Optionally, the internal stationary tool 33 may be provided with a notch or through hole to fit into the second assembly pin 341, which is not limited here.

[0091] Optionally, multiple second assembly pins 341 can be provided as needed, and multiple second assembly pins 341 can also be provided on one or both sides of the inner stationary tool holder 34 as needed, without limitation.

[0092] See Figure 2 and Figure 4 As shown, in some embodiments, at least two swing members 41 are provided. The first transmission part 411 at one end of all swing members 41 is floatingly connected to the outer moving blade 21, the rotating shaft 412 in the middle is rotatably connected to the blade holder 1, and the second transmission part 413 at the other end is floatingly connected to the inner moving blade 31.

[0093] Specifically, at least two oscillating components 41 are provided. When two or more oscillating components 41 are provided, the first transmission part 411 at one end of all oscillating components 41 is floatingly connected to the outer moving blade 21, the rotating shaft 412 in the middle is rotatably connected to the tool holder 1, and the second transmission part 413 at the other end is floatingly connected to the inner moving blade 31. By adopting a parallel mechanism with a central fulcrum and floating drive at both ends formed by at least two oscillating components 41, a more stable structural foundation can be provided during the high-frequency reciprocating oscillation of the inner moving blade 31 and the outer moving blade 21. Through multi-point balancing and floating self-adaptation, the ultimate stability of the tool assembly in high-speed reciprocating motion is achieved.

[0094] Alternatively, when at least two oscillating members 41 are provided, if there are an even number of oscillating members 41, they can be symmetrically arranged along the length direction of the outer moving blade 21; if there are an odd number of oscillating members 41, they can be arranged at equal intervals along the length direction of the outer moving blade 21. Of course, the spacing of the oscillating members 41 can also be freely planned as needed.

[0095] See Figure 2 and Figure 8 As shown, in some embodiments, the inner stationary blade 33 has a mesh 331, which is a hexagonal hole.

[0096] Specifically, while round holes themselves have a better stress distribution, when densely arranged, the connecting ribs between the round holes (i.e., the solid positions outside the round holes) have varying sizes, resulting in some positions at the edge of the round holes being higher than others. Using hexagonal holes, similar to a honeycomb structure, ensures that the ribs between adjacent holes are of uniform size, thus solving the unevenness problem that can occur with round holes.

[0097] See Figures 13-15 As shown, in some embodiments, the outer periphery of the outer stationary blade 23 is provided with a plurality of teeth 232, and the ends of the teeth 232 are provided with protrusions 233 arranged along the length direction of the outer stationary blade 23.

[0098] Specifically, the outer stationary blade 23 has several teeth 232 on its outer rear side. By placing hair between adjacent teeth 232 of the outer stationary blade 23, the outer moving blade 21 reciprocates relative to the outer stationary blade 23 to cut the hair. To reduce discomfort when the teeth 232 come into contact with the skin, the ends of the teeth 232 have protrusions 233 extending along the length of the outer stationary blade 23. That is, the ends of the teeth 232 extend to both sides, forming protrusions 233, thus creating a tooth 232 structure of the outer stationary blade 23 that is wide at the ends and narrow at the roots. During shaving, the teeth 232 comb and guide hair of different growth directions and lengths to the spaces between adjacent teeth 232. Furthermore, the protrusions 233 on both sides of the ends of the teeth 232 increase the contact area 234 with the skin during shaving, evenly distributing the pressure that was originally concentrated at the tips of the teeth 232, thereby effectively reducing skin irritation during shaving and avoiding discomfort such as redness and stinging. Meanwhile, the protrusion 233 is only provided at the end of the tooth 232, and does not affect the size between the roots of adjacent teeth 232, so as not to affect the normal shaving efficiency.

[0099] In some embodiments, the protrusion 233 includes a straight section 2331 and a bent section 2332, the straight section 2331 and the bent section 2332 are connected, the straight section 2331 is connected to the tooth 232, the bent section 2332 has a contact surface 234 that contacts the skin, the bent section 2332 is bent in a direction away from the contact surface 234, and the angle between the bent section 2332 and the straight section 2331 is greater than or equal to ninety degrees.

[0100] Specifically, the end of the tooth 232 is provided with a straight section 2331 and a bent section 2332 connected in sequence. The straight section 2331 is located near the end of the tooth 232. When the external static knife 23 is in use, the side of the blade that contacts the skin is the contact surface 234. The bent section 2332 bends away from the contact surface 234. The structure of the bent section 2332 changes the planar layout of the traditional blade, making the geometry of the static knife contact area with the skin more conform to the curves of the human face, such as the concave and convex parts 233 of the chin and neck, thereby increasing the actual contact area 234 and reducing redness or stinging sensations on the skin. The straight section 2331 is set to coincide with the contact surface 234 to ensure stable contact between the straight section 2331 and the skin.

[0101] Optionally, the bent segment 2332 bends away from the contact surface 234, and the angle between the bent segment 2332 and the straight segment 2331 is greater than or equal to 90 degrees. This ensures that the bent segment 2332 can slide more smoothly on the deformed skin surface as the stationary blade moves, further improving the skin feel. Specifically, the angle between the bent segment 2332 and the straight segment 2331 is... Figure 15 α angle in In some embodiments, the end of the protrusion 233 away from the tooth 232 is provided with a rounded corner structure 2333 to guide hair into the space between adjacent teeth 232; And / or, the protrusion 233 is provided with a guide structure 2334 at the end facing the tooth 232.

[0102] Specifically, the outer end of the protrusion 233 is provided with a rounded corner structure 2333, that is, a rounded corner structure 2333 is set at the outermost end of the entire tooth 232. The rounded corner structure 2333 serves as a transition zone, and the area between two adjacent rounded corner structures 2333 forms a guide groove, allowing the hair to slide naturally into the root of the tooth 232 along the rounded curved surface after contacting the protrusion 233, reducing the problem of failed cutting due to misalignment of the beard direction and improving the overall shaving efficiency. After the rounded corner structure 2333 replaces the traditional right-angle design, it avoids the discomfort caused to the skin by the sharp corner at the end of the protrusion 233. At the same time, the arc surface of the rounded corner can more evenly distribute the pressure when in contact with the skin, further improving comfort.

[0103] A guide structure 2334 is provided at the end of the protrusion 233 facing the teeth 232. That is, a guide structure 2334 is provided at the inner end of the protrusion 233, which is opposite to the rounded corner structure 2333 provided at the end of the protrusion 233 away from the blade body. The guide structure 2334 can be a guide slope, so that during the sliding of the blade on the skin surface, the hair is guided into and out of the area between the roots of adjacent teeth 232 in an orderly manner, preventing the hair from being pulled and improving user comfort. In addition, the guide structure 2334 can also avoid the sharp corner of the end of the protrusion 233 from causing discomfort to the skin. At the same time, the surface of the guide structure 2334 can also evenly distribute the pressure when in contact with the skin, further improving comfort.

[0104] Alternatively, the swing component 41 and the rotating shaft 412 can be configured separately or integrally formed. The rotating shaft 412 can be made of powder metallurgy or high-strength plastic materials, as long as it can ensure stable operation of the rotating shaft 412 under high-frequency friction conditions. No limitation is made here.

[0105] Alternatively, the outer stationary blade 23 can also be produced using powder metallurgy and metal injection molding (MIM) processes. This involves mixing metal powder with a binder, injecting the mixture into a mold cavity using an injection molding machine to form a preform of the desired shape, followed by debinding, sintering, and other subsequent processing to obtain the final metal part. MIM technology combines the advantages of powder metallurgy and plastic injection molding, enabling the manufacture of complex-shaped, high-precision metal parts. After the outer stationary blade 23 is formed, burrs and flash are removed to meet the requirements of the shaver.

[0106] Optionally, the inner moving blade 31 can be made of metal materials such as stainless steel, and the inner moving blade 31 base can be made of plastic. The inner moving blade 31 and the inner moving blade 31 base are fixed by a hot stamping process to ensure the fixing effect.

[0107] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention.

Claims

1. A shaver, characterized in that, Includes a cutting head, a reciprocating drive device (6), and a drive housing (7). The cutting head includes: Knife holder(1); The outer blade module (2) includes an outer moving blade assembly; The inner blade module (3) includes an inner moving blade assembly; The tool assembly linkage component (4) is rotatably mounted on the tool holder (1). The outer moving tool component is floatingly connected to one end of the tool assembly linkage component (4), and the inner moving tool component is floatingly connected to the other end of the tool assembly linkage component (4), so that when one of the outer moving tool component and the inner moving tool component moves, the tool assembly linkage component (4) rotates and drives the other to move in the opposite direction. The reciprocating drive device (6) has an output shaft (5), the reciprocating drive device (6) is located inside the drive housing (7), and the output shaft (5) extends to the outside of the drive housing (7); Wherein, the external moving blade assembly is connected to the output shaft (5) in a driving connection, or the internal moving blade assembly is connected to the output shaft (5) in a driving connection; The outer moving blade assembly has a receiving space, and the inner moving blade assembly is at least partially disposed within the receiving space.

2. The shaver according to claim 1, characterized in that, The blade assembly linkage component (4) includes: The swing member (41) has a rotating shaft (412) in the middle, and the rotating shaft (412) is rotatably mounted on the tool holder (1); The first transmission part (411) is disposed at one end of the swing member (41) and is floatingly connected to the external moving blade assembly; The second transmission unit (413) is disposed at the other end of the swing member (41) and is floatingly connected to the inner moving blade assembly.

3. A shaver according to claim 2, characterized in that, The outer blade module (2) includes an outer movable blade (21) and an outer movable blade holder (22). The outer movable blade (21) is mounted on the outer movable blade holder (22), and the outer movable blade holder (22) is provided with a first transmission groove (221). The first transmission unit (411) is movably disposed in the first transmission groove (221), and the external moving tool holder (22) is floatingly connected to the tool group linkage assembly (4).

4. A shaver according to claim 3, characterized in that, The first transmission part (411) includes a first sub-transmission part (4111) and a second sub-transmission part (4112). The first sub-transmission part (4111) and the second sub-transmission part (4112) are respectively disposed on opposite sides of the swing member (41). The first transmission groove (221) includes a first sub-transmission groove (2211) and a second sub-transmission groove (2212). The first sub-transmission part (4111) is floatingly disposed in the first sub-transmission groove (2211), and the second sub-transmission part (4112) is floatingly disposed in the second sub-transmission groove (2212).

5. A shaver according to any one of claims 2-4, characterized in that, The inner blade module (3) includes an inner moving blade (31) and an inner moving blade holder (32). The inner moving blade (31) is mounted on the inner moving blade holder (32), and the inner moving blade holder (32) is provided with a second transmission groove (321). The second transmission unit (413) is movably disposed in the second transmission groove (321), and the internal moving tool holder (32) is floatingly connected to the tool group linkage assembly (4).

6. A shaver according to claim 5, characterized in that, The second transmission part (413) includes a third sub-transmission part (4131) and a fourth sub-transmission part (4132), the third sub-transmission part (4131) and the fourth sub-transmission part (4132) are respectively disposed on opposite sides of the swing member (41), the second transmission groove (321) includes a third sub-transmission groove (3211) and a fourth sub-transmission groove (3212), the third sub-transmission part (4131) is floatingly disposed in the third sub-transmission groove (3211), and the fourth sub-transmission part (4132) is floatingly disposed in the fourth sub-transmission groove (3212).

7. A shaver according to claim 2, characterized in that, At least two swing members (41) are provided. The first transmission part (411) at one end of all the swing members (41) is floatingly connected to the outer moving blade (21), the rotating shaft (412) in the middle is rotatably connected to the blade holder (1), and the second transmission part (413) at the other end is floatingly connected to the inner moving blade (31).

8. A shaver according to claim 2, characterized in that, The outer blade module (2) also includes an outer stationary blade (23), and the inner blade module (3) also includes an inner stationary blade (33). The outer stationary blade (23) has an assembly hole (231) in the middle. The inner stationary blade (33) and the inner moving blade (31) are both located in the assembly hole (231). The outer stationary blade (23) and the inner stationary blade (33) are either separately arranged or integrally formed. The outer blade module (2) further includes an outer elastic element, one end of which abuts against the blade holder (1) and the other end of which abuts against the outer moving blade (21) so that the outer moving blade (21) abuts against the outer stationary blade (23). And / or, the inner blade module (3) further includes an inner elastic element (35), one end of which abuts against the blade holder (1) or the outer moving blade holder (22) and the other end of which abuts against the inner moving blade (31) so that the inner moving blade (31) abuts against the inner stationary blade (33).

9. A shaver according to claim 8, characterized in that, The external elastic element is a spring sheet (242). There are two spring sheets (242), and the two spring sheets (242) are respectively located on opposite sides of the external moving blade (21) along the length direction of the external moving blade (21). One end of each of the two spring sheets (242) abuts against the blade holder (1), and the other end abuts against the external moving blade (21).

10. A shaver according to claim 8, characterized in that, The external stationary blade (23) has teeth (232) on at least one side. The external stationary blade (23) gradually convexes upward from the root of its teeth (232) and the side opposite to the teeth (232) to the middle of the mounting hole (231) to form an arched structure (235). And / or, the corners of the external stationary blade (23) are rounded (236).

Images