Shaving razor with independent lifting of the cutting head

Abstract

A shaver with independently adjustable cutting heads includes a cutting head mounting base. At least two cutting head assemblies are disposed within the mounting base. At least one cutting head assembly has a corresponding adjusting structure between itself and the mounting base. The cutting head assembly adjusts its height within the mounting base under the influence of the corresponding adjusting structure. By providing independent adjusting structures within the mounting base, the height of the cutting head assemblies is adjusted, thereby enhancing the shaver's adaptability and flexibility. The adjusting structures can precisely control the height of each independent cutting head assembly, ensuring that the cutting head assemblies conform to the facial contours of different users, improving shaving performance and comfort.

Description

Technical Field

[0001] This utility model relates to the field of hair cutting equipment technology, specifically to a shaver with an independently lifting blade head. Background Technology

[0002] In existing technologies, razor heads are usually fixed or all heads rise and fall synchronously, making it impossible to adjust the height of individual heads according to the user's facial contours, resulting in limited shaving performance and comfort. Summary of the Invention

[0003] In view of this, the present invention provides a razor with an independently lifting blade head.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A shaver with an independently lifting head includes a head mounting base, wherein at least two head assemblies are disposed within the head mounting base, and at least one head assembly is provided with a corresponding lifting structure between it and the head mounting base, and the head assembly is height-adjusted within the head mounting base under the action of the corresponding lifting structure.

[0005] Preferably, the cutter head assembly includes a cutter head support, a moving cutter unit, and a stationary cutter unit. Both the moving cutter unit and the stationary cutter unit are mounted on the cutter head support. The lifting structure is movably mounted on the cutter head mounting seat. One end of the lifting structure extends into the cutter head mounting seat and connects to the cutter head support. During the movement of the lifting structure, it drives the cutter head support and the moving cutter unit and stationary cutter unit on the cutter head support to perform synchronous lifting and lowering movements within the cutter head mounting seat.

[0006] Preferably, each of the cutter head assemblies, driven by the lifting structure, has a unidirectional lifting stroke of more than 3 mm within the cutter head mounting seat.

[0007] Preferably, the lifting structure is a push button, and a push button guide portion is formed by recessing the outer wall of the cutter head mounting base. The push button has a body portion and a transmission connection portion. The body portion is embedded in the push button guide portion and connected to the cutter head mounting base. The body portion is movably disposed in the push button guide portion. A push button guide groove is formed on the push button guide portion. The transmission connection portion is formed by the body portion of the push button protruding towards the push button guide groove and extends into the cutter head mounting base and is connected to the cutter head bracket. Pushing the body portion through the transmission connection portion drives the cutter head bracket and the moving and stationary cutter units on the cutter head bracket to move up and down within the cutter head mounting base.

[0008] Preferably, the push button guide and the push button guide groove on the push button guide are disposed on the outer wall of the cutter head mounting base along the height direction of the cutter head mounting base, and a connecting hole is provided on the cutter head bracket, and the end of the transmission connection part away from the main body part passes through the connecting hole and connects to the cutter head bracket.

[0009] Preferably, the cutter head support has a gear transmission part, which is disposed on both side walls of the cutter head support. The connecting hole is opened on the gear transmission part, and a limiting end protrudes from the gear transmission part. A plurality of gear blocks are disposed on the inner wall of the cutter head mounting base corresponding to the limiting end on the gear transmission part, which are continuously arranged along the height direction of the inner wall of the cutter head mounting base. A gear slot is formed between adjacent gear blocks, and the limiting end extends into the corresponding gear slot and is limited to the inner wall of the cutter head mounting base.

[0010] Preferably, the inner wall of the cutter head mounting seat protrudes to form a seat guide rib on the portion located on both sides of the gear block, a guide groove is formed between the seat guide ribs, the gear block is disposed in the guide groove, and a bracket guide rib protrudes from the gear transmission part to form a corresponding seat guide rib, the bracket guide rib extends into the guide groove and connects with the seat guide rib, and the seat guide rib limits the horizontal position of the bracket guide rib in the guide groove.

[0011] Preferably, the push button guide and the push button guide groove on the push button guide are disposed on the outer wall of the cutter head mounting base along the length direction of the cutter head mounting base. The cutter head bracket is provided with a push button connecting part, and an inclined transmission groove is formed on the push button connecting part. One end of the transmission connecting part passes through the push button guide groove and extends into the transmission groove to connect with the push button connecting part of the cutter head bracket. Pushing the body of the push button drives the transmission connecting part to move within the push button guide groove. During the movement of the transmission connecting part, the end of the transmission connecting part extending into the transmission groove drives the cutter head bracket to perform lifting and lowering movements within the cutter head mounting base.

[0012] Preferably, the push button connecting part is provided with a lifting limit structure, the lifting limit structure has a snap-fit ​​end, and two symmetrical lifting snap-fit ​​blocks are protruding on the inner wall of the side of the cutter head mounting seat near the push button. Snap-fit ​​limit parts are provided on the opposite surfaces of the two lifting snap-fit ​​blocks. Limiting chamfer structures are formed on the upper and lower sides of the snap-fit ​​limit parts. During the lifting and lowering process, the snap-fit ​​end is limited and connected with the corresponding limiting chamfer structure.

[0013] Preferably, the cutter head support is further provided with lifting guide columns, which protrude from both sides of the top of the cutter head support. The stationary cutter unit is provided with lifting guide grooves corresponding to the lifting guide columns, and the lifting guide columns extend into the corresponding lifting guide grooves to connect with the stationary cutter unit.

[0014] Preferably, the moving blade unit includes a moving blade holder and a moving blade, and the stationary blade unit includes a stationary blade and a stationary blade fixing frame. The stationary blade fixing frame is snap-fitted to the blade head bracket. A blade head mounting groove is formed inside the stationary blade fixing frame. Both the moving blade holder and the moving blade are disposed in the blade head mounting groove. The moving blade is disposed on the moving blade holder. The stationary blade is disposed on the top of the stationary blade fixing frame to cover the blade head mounting groove. An elastic element is disposed between the moving blade holder and the stationary blade fixing frame. The two ends of the elastic element abut against the moving blade holder and the stationary blade fixing frame, respectively. The moving blade holder always remains in contact with the inner surface of the stationary blade due to the support of the elastic element.

[0015] Preferably, a stationary knife elastic element is provided between the stationary knife fixing frame and the knife head support, and the two ends of the stationary knife elastic element abut against the stationary knife fixing frame and the knife head support respectively.

[0016] The beneficial effects of this utility model are as follows: by setting an independent lifting structure in the blade head mounting base, the height of the blade head assembly is adjusted, thereby enhancing the adaptability and flexibility of the shaver. The lifting structure can precisely control the height of each individual blade head assembly, ensuring that the blade head assembly can fit the facial contours of different users, improving shaving effect and comfort. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Appendix Figure 1 This is a schematic diagram of the design structure; Appendix Figure 2 This is a structural breakdown diagram of the design. Appendix Figure 3 This is a top view of the design; Appendix Figure 4 For the appendix Figure 3 Sectional view at point AA; Appendix Figure 5 This is another schematic diagram of the design; Appendix Figure 6 This is a schematic diagram of another embodiment; Appendix Figure 7 For the appendix Figure 7 Another angle diagram; Appendix Figure 8 For the appendix Figure 6 Structural breakdown diagram; Appendix Figure 9 For the appendix Figure 6 Top view; Appendix Figure 10 For the appendix Figure 9 Sectional view at point BB. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] The present invention will now be further described with reference to the accompanying drawings.

[0021] This utility model provides the following technical solution: As attached Figure 1-10 As shown, this utility model discloses a shaver with independently lifting blade heads, including a blade head mounting base 1. At least two blade head assemblies 2 are disposed within the blade head mounting base 1, and at least one blade head assembly 2 is provided with a corresponding lifting structure 3 between itself and the blade head mounting base 1. The blade head assembly 2 is height-adjusted within the blade head mounting base 1 under the action of the corresponding lifting structure 3. Specifically, in this design, by providing independent lifting structures within the blade head mounting base, the height adjustment of the blade head assemblies is achieved, thereby enhancing the adaptability and flexibility of the shaver. The lifting structure 3 can precisely control the height of each independent blade head assembly 2, ensuring that the blade head assembly 2 can conform to the facial contours of different users, improving shaving effect and comfort.

[0022] Furthermore, the shaver head assembly 2 includes a shaver head support 4, a moving blade unit 5, and a stationary blade unit 10. Both the moving blade unit 5 and the stationary blade unit 10 are mounted on the shaver head support 4. The lifting structure 3 is movably mounted on the shaver head mounting base 1. One end of the lifting structure 3 extends into the shaver head mounting base 1 and connects to the shaver head support 4. During movement, the lifting structure 3 drives the shaver head support 4 and the moving blade unit 5 and stationary blade unit 10 on the shaver head support 4 to perform synchronized lifting and lowering movements within the shaver head mounting base 1. Specifically, in this embodiment, the lifting structure 3 can drive the moving blade unit 5 and stationary blade unit 10 in each shaver head assembly 2 to perform synchronized lifting and lowering movements, thereby ensuring that the moving blade unit 5 and stationary blade unit 10 always maintain the optimal shaving angle and fit during shaving, thus improving shaving efficiency and comfort. In addition, each lifting structure 3 is independently controlled, allowing the height of each shaver head assembly 2 to be adjusted individually according to the user's actual needs, enabling the shaver to better adapt to different facial contours and shaving requirements.

[0023] Furthermore, each of the blade head assemblies 2, driven by the lifting structure 3, has a unidirectional lifting stroke greater than 3mm within the blade head mounting base 1. Specifically, in this embodiment, the unidirectional lifting stroke greater than 3mm ensures that the blade head assembly has a sufficient height adjustment range to accommodate various facial contours and shaving needs. This design not only improves the flexibility and adaptability of the shaver but also ensures optimal fit between the blade head assembly and facial contours during shaving, thereby further enhancing shaving performance and comfort. Moreover, the unidirectional stroke greater than 3mm creates a significant height difference between the raised and stationary blade head assemblies. This height difference design helps users visually observe which blade head assemblies have been adjusted to the appropriate height and which require further adjustment when using the shaver.

[0024] Furthermore, the lifting structure 3 is a push button. A push button guide portion 11 is recessed on the outer wall of the cutter head mounting base 1. The push button has a body portion 12 and a transmission connection portion 13. The body portion 12 is embedded in the push button guide portion 11 and connected to the cutter head mounting base 1. The body portion 12 is movably disposed within the push button guide portion 11. A push button guide groove 14 is formed on the push button guide portion 11. The transmission connection portion 13 is formed by the body portion 12 of the push button protruding towards the push button guide groove 14 and extending into the interior of the cutter head mounting base 1, connecting to the cutter head support 4. Pushing the body portion 12 via the transmission connection portion 13 drives the cutter head support 4 and the moving cutter unit 5 and stationary cutter unit 10 on the cutter head support 4 to move up and down within the cutter head mounting base 1. Specifically, in this embodiment, the lifting structure 3 is designed as a push button for easy user operation and adjustment. The user only needs to push the body portion 12 of the push button to adjust the height of the cutter head assembly 2 via the transmission connection portion 13. The push button guide 11 not only provides a stable guide for the push button, but also ensures the smoothness and accuracy of the push button during movement. The push button guide 11 is a concave groove structure, the shape of which matches the body 12 of the push button, thereby effectively limiting the direction of movement of the push button and preventing the push button from deviating or wobbling during movement. The opening of the push button guide groove 14 allows the transmission connection part 13 to extend smoothly into the inside of the cutter head mounting seat 1 and connect with the cutter head bracket 4, ensuring that the cutter head assembly 2 can be accurately driven to move up and down when the push button is pushed.

[0025] Reference Appendix Figure 1-5As shown, the push button guide part 11 and the push button guide groove 14 on the push button guide part 11 are arranged on the outer wall of the blade head mounting base 1 along the height direction of the blade head mounting base 1. The blade head bracket 4 has a connecting hole 15, and the end of the transmission connection part 13 away from the main body part 12 passes through the connecting hole 15 and connects to the blade head bracket 4. Specifically, in this embodiment, the push button guide groove 14 is arranged on the outer wall of the blade head mounting base 1 along the height direction of the blade head mounting base 1. This design makes the pushing direction of the push button consistent with the lifting direction of the blade head assembly, thereby further improving the intuitiveness and convenience of user operation. Users only need to push the push button along the height direction of the blade head mounting base to easily adjust the height of the blade head assembly. At the same time, the opening of the connecting hole 15 provides a stable connection point for the transmission connection part 13, ensuring that the blade head assembly can be accurately and smoothly driven to lift and lower when the push button is pushed, avoiding the problem of the blade head assembly shaking or deviating during shaving, which affects the shaving effect and comfort.

[0026] Furthermore, the cutter head bracket 4 has a gear shift transmission part 16, which is disposed on both side walls of the cutter head bracket 4. The connecting hole 15 is opened on the gear shift transmission part 16, and a limiting end 17 protrudes from the gear shift transmission part 16. A plurality of gear shift blocks 18 are continuously arranged along the height direction of the inner wall of the cutter head mounting base 1, corresponding to the limiting end 17 on the gear shift transmission part 16. A gear shift groove 19 is formed between adjacent gear shift blocks 18, and the limiting end 17 extends into the corresponding gear shift groove 19 and is limited to contact with the inner wall of the cutter head mounting base 1. Specifically, in this embodiment, the design of the gear shift transmission part 16 realizes the height gear adjustment function of the cutter head assembly 2. When the lifting structure 3 drives the cutter head assembly 2 to a suitable position, the limiting end 17 on the gear shift transmission part 16 will extend into the corresponding gear shift groove 19 and form a limited contact with the inner wall of the cutter head mounting base 1, thereby fixing the height of the cutter head assembly 2. This adjustable height design not only makes the height adjustment of the shaver head assembly more precise and stable, but also allows users to personalize the height setting according to their preferences and facial contours. Meanwhile, the adjustable height blocks 18 are continuously arranged along the inner wall of the shaver head mounting base 1, providing multiple height settings for users to choose from, further improving the shaver's adaptability and flexibility. Furthermore, the limiting end 17, which engages with the adjustable height slot 19, also prevents the shaver head assembly from accidentally shaking or shifting during shaving, ensuring shaving stability and comfort.

[0027] Furthermore, the inner wall of the cutter head mounting seat 1 protrudes to form seat guide ribs 20 on the portions located on both sides of the gear block 18. A guide groove 21 is formed between the seat guide ribs 20. The gear block 18 is disposed within the guide groove 21. A bracket guide rib 22 corresponding to the seat guide rib 20 protrudes from the gear transmission part 16. The bracket guide rib 22 extends into the guide groove 21 and connects with the seat guide rib 20. The seat guide rib 20 limits the horizontal position of the bracket guide rib 22 within the guide groove 21. Specifically, in this embodiment, the design of the seat guide rib 20 and the guide groove 21 provides stable guidance for the cooperation between the gear transmission part 16 and the gear block 18. The bracket guide rib 22 extending into the guide groove 21 and connecting with the seat guide rib 20 ensures the smoothness and accuracy of the gear transmission part 16 during lifting and lowering, avoiding the impact of shaking or offset on the accuracy and stability of gear adjustment.

[0028] Reference Appendix Figure 6-10 As shown, in another embodiment, the push button guide portion 11 and the push button guide groove 14 on the push button guide portion 11 are arranged on the outer wall of the cutter head mounting base 1 along the length direction of the cutter head mounting base 1. The cutter head bracket 4 is provided with a push button connecting portion 23, and the push button connecting portion 23 has an inclined transmission groove 24. One end of the transmission connecting portion 13 passes through the push button guide groove 14 and extends into the transmission groove 24 to connect with the push button connecting portion 23 of the cutter head bracket 4. Pushing the body portion 12 of the push button causes the transmission connecting portion 13 to move within the push button guide groove 14. During the movement of the transmission connecting portion 13, the end of the transmission connecting portion 13 extending into the transmission groove 24 causes the cutter head bracket 4 to move up and down within the cutter head mounting base 1. Specifically, in this embodiment, The push button guide 11 and push button guide groove 14, designed along the length of the shaver head mounting base 1, provide users with an alternative operating method. Unlike the height-oriented design, the length-oriented design allows users to adjust the height of the shaver head assembly by pushing the push button left or right. The push button connection 23 and the inclined design of the transmission groove 24 enable the transmission connection 13 to smoothly drive the shaver head support 4 to move up and down during pushing. In addition, the inclined transmission groove 24 also has a certain self-locking function. When the push button is in a stationary state, the cooperation between the transmission connection 13 and the transmission groove 24 can prevent the shaver head assembly from accidentally moving up or down due to external factors, improving the stability and safety of the shaver.

[0029] Furthermore, a lifting limit structure 25 is provided on the push button connecting part 23. The lifting limit structure 25 has a locking end 26. Two symmetrical lifting locking blocks 27 protrude from the inner wall of the cutter head mounting base 1 near the push button. Locking limit parts 28 are provided on the opposite surfaces of the two lifting locking blocks 27. Locking limit parts 28 have locking chamfer structures 29 on their upper and lower sides. During the lifting and lowering process, the locking end 26 engages with the corresponding locking chamfer structure 29. Specifically, in this embodiment, the design of the lifting limit structure 25 further enhances the stability and safety of the cutter head assembly lifting process. When the push button is pushed and the transmission connecting part 13 drives the cutter head bracket 4 to move up and down, the locking end 26 of the lifting limit structure 25 will cooperate with the locking limit part 28 on the lifting locking block 27 on the inner wall of the cutter head mounting base 1. During the lifting and lowering process, the locking end 26 slides along the inclined surface of the limiting chamfer structure 29 until it reaches the predetermined lifting and lowering position. At this point, the locking end 26 is tightly engaged with the locking limiting part 28 to form a limit, thereby fixing the height of the razor head assembly. This design not only ensures the accuracy and stability of the lifting and lowering of the razor head assembly, but also effectively prevents the razor head assembly from accidentally lifting and lowering due to external factors during shaving, further improving the safety of the razor and the stability of the shaving effect.

[0030] Furthermore, the cutter head support 4 is also provided with lifting guide posts 30, which protrude from both sides of the top end of the cutter head support 4. The stationary cutter unit 10 is provided with lifting guide grooves 31 corresponding to the lifting guide posts 30, and the lifting guide posts 30 extend into the corresponding lifting guide grooves 31 to connect with the stationary cutter unit 10. Specifically, in this embodiment, The design of the lifting guide post 30 and the lifting guide groove 31 provides stable guidance for the lifting and lowering of the shaver head assembly 2. The lifting guide post 30 protrudes from both sides of the top of the shaver head bracket 4, while the lifting guide groove 31 is correspondingly located on the stationary shaver unit 10. When the shaver head assembly 2 moves up and down, the lifting guide post 30 extends into the corresponding lifting guide groove 31 and moves along the trajectory of the lifting guide groove 31. This design not only ensures the stability and accuracy of the shaver head assembly 2 during the lifting and lowering process, but also effectively prevents the shaver head assembly 2 from being affected by shaking or deviation during shaving, thus improving the shaving effect and comfort. In addition, the cooperation between the lifting guide post 30 and the lifting guide groove 31 also has a certain self-locking function. When the shaver head assembly 2 is raised and lowered to the predetermined position, the tight cooperation between the lifting guide post 30 and the lifting guide groove 31 can prevent the shaver head assembly 2 from being accidentally raised or lowered due to external factors, further improving the stability and safety of the shaver.

[0031] Furthermore, the moving blade unit 5 includes a moving blade seat 32 and a moving blade 33, and the stationary blade unit 10 includes a stationary blade 6 and a stationary blade fixing frame 34. The stationary blade fixing frame 34 is snap-fitted to the blade head bracket 4. A blade head mounting groove 35 is formed inside the stationary blade fixing frame 34. Both the moving blade seat 32 and the moving blade 33 are disposed in the blade head mounting groove 35. The moving blade 33 is disposed on the moving blade seat 32. The stationary blade 6 is disposed on top of the stationary blade fixing frame 34 to cover the blade head mounting groove 35. An elastic element 36 is disposed between the moving blade seat 32 and the stationary blade fixing frame 34. The two ends of the elastic element 36 respectively abut against the moving blade seat 32 and the stationary blade fixing frame 34. The moving blade seat 32 always maintains contact with the inner surface of the stationary blade 6 under the support of the elastic element 36. Specifically, in this embodiment, the cooperative design of the moving blade unit 5 and the stationary blade unit 10 achieves a highly efficient shaving effect. The combination of the moving blade holder 32 and the moving blade 33 allows the moving blade unit 5 to move flexibly during shaving, closely conforming to the facial contours. The stationary blade 6, positioned on top of the stationary blade holder 34, covers the head mounting slot 35, effectively preventing hair or debris from entering the head during shaving, maintaining head cleanliness and shaving performance. Simultaneously, the elastic element 36 between the moving blade holder 32 and the stationary blade holder 34 plays a crucial supporting and cushioning role. The two ends of the elastic element 36 abut against the moving blade holder 32 and the stationary blade holder 34 respectively, ensuring that the moving blade holder 32 remains in contact with the inner surface of the stationary blade 6 throughout the shaving process. This design not only improves shaving comfort and efficiency but also effectively extends the lifespan of the head. Furthermore, the support provided by the elastic element 36 allows the moving blade unit 5 to adapt flexibly to different facial contours, ensuring shaving stability and effectiveness.

[0032] Furthermore, a static blade elastic element 37 is provided between the static blade holder 34 and the blade head support 4, with both ends of the static blade elastic element 37 abutting against the static blade holder 34 and the blade head support 4, respectively. Specifically, in this embodiment, the static blade elastic element 37 allows the static blade 6 mounted on the static blade holder 34 to have a certain degree of floating capability, enabling it to better conform to the user's facial contours. Especially when encountering uneven areas of the face during shaving, the static blade 6 can make fine adjustments under the action of the static blade elastic element 37, always maintaining close contact with the facial skin, thereby improving shaving comfort and effectiveness. In addition, the static blade elastic element 37 can also effectively alleviate vibrations generated during shaving, reducing irritation to the facial skin and further enhancing the user's shaving experience.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A shaver with independently lifting blades, comprising a blade mounting base (1), wherein at least two blade assemblies (2) are disposed within the blade mounting base (1), characterized in that: At least one of the cutter head assemblies (2) is provided with a corresponding lifting structure (3) between it and the cutter head mounting base (1), and the cutter head assembly (2) is adjusted in height within the cutter head mounting base (1) under the drive of the corresponding lifting structure (3).

2. A shaver with independent lifting heads according to claim 1, characterized in that: The cutter head assembly (2) includes a cutter head bracket (4), a moving cutter unit (5), and a stationary cutter unit (10). The moving cutter unit (5) and the stationary cutter unit (10) are both mounted on the cutter head bracket (4). The lifting structure (3) is movably mounted on the cutter head mounting seat (1). One end of the lifting structure (3) extends into the cutter head mounting seat (1) and is connected to the cutter head bracket (4). During the movement of the lifting structure (3), it drives the cutter head bracket (4) and the moving cutter unit (5) and the stationary cutter unit (10) on the cutter head bracket (4) to perform synchronous lifting and lowering movements within the cutter head mounting seat (1).

3. A shaver with independent lifting heads according to claim 1, characterized in that: Each of the cutter head assemblies (2) has a unidirectional stroke of more than 3 mm within the cutter head mounting base (1) driven by the lifting structure (3).

4. A shaver having independently elevatable cutting heads as claimed in claim 2, characterized in that: The lifting structure (3) is a push button. The outer wall of the cutter head mounting base (1) is recessed to form a push button guide part (11). The push button has a body part (12) and a transmission connection part (13). The body part (12) is embedded in the push button guide part (11) and connected to the cutter head mounting base (1). The body part (12) is movably disposed in the push button guide part (11). The push button guide part (11) has a push button guide groove (14). The transmission connection part (13) is formed by the body part (12) of the push button protruding towards the push button guide groove (14) and extends into the cutter head mounting base (1) and is connected to the cutter head bracket (4). The body part (12) is pushed to drive the cutter head bracket (4) and the moving cutter unit (5) and stationary cutter unit (10) on the cutter head bracket (4) to move up and down in the cutter head mounting base (1) through the transmission connection part (13).

5. A shaver with independent lifting heads according to claim 4, characterized in that: The push button guide (11) and the push button guide groove (14) on the push button guide (11) are arranged on the outer wall of the cutter head mounting base (1) along the height direction of the cutter head mounting base (1). A connection hole (15) is opened on the cutter head bracket (4). The end of the transmission connection part (13) away from the main body part (12) passes through the connection hole (15) and connects to the cutter head bracket (4).

6. A shaver with independent lifting heads according to claim 5, characterized in that: The cutter head bracket (4) has a gear transmission part (16), which is disposed on both sides of the cutter head bracket (4). The connecting hole (15) is opened on the gear transmission part (16). A limiting end (17) protrudes from the gear transmission part (16). A plurality of gear blocks (18) are disposed on the inner wall of the cutter head mounting base (1) corresponding to the limiting end (17) on the gear transmission part (16). A gear slot (19) is formed between adjacent gear blocks (18). The limiting end (17) extends into the corresponding gear slot (19) and is limited to the inner wall of the cutter head mounting base (1).

7. A shaver with independent lifting heads according to claim 6, characterized in that: The inner wall of the cutter head mounting seat (1) protrudes on the portion on both sides of the gear block (18) to form a seat guide rib (20), and a guide groove (21) is formed between the seat guide ribs (20). The gear block (18) is set in the guide groove (21). The gear transmission part (16) protrudes to form a bracket guide rib (22) corresponding to the seat guide rib (20). The bracket guide rib (22) extends into the guide groove (21) and connects with the seat guide rib (20). The seat guide rib (20) limits the horizontal position of the bracket guide rib (22) in the guide groove (21).

8. A shaver having independently elevatable cutting heads as claimed in claim 4, characterized in that: The push button guide part (11) and the push button guide groove (14) on the push button guide part (11) are arranged on the outer wall of the cutter head mounting base (1) along the length direction of the cutter head mounting base (1). The push button connecting part (23) is provided on the cutter head bracket (4). The push button connecting part (23) has an inclined transmission groove (24). One end of the transmission connecting part (13) passes through the push button guide groove (14) and extends into the transmission groove (24) to connect with the push button connecting part (23) of the cutter head bracket (4). Pushing the body part (12) of the push button drives the transmission connecting part (13) to move in the push button guide groove (14). During the movement of the transmission connecting part (13), one end of the transmission connecting part (13) extending into the transmission groove (24) drives the cutter head bracket (4) to move up and down in the cutter head mounting base (1).

9. A shaver with independent shaving heads according to claim 8, characterized in that: The push button connecting part (23) is provided with a lifting limit structure (25), the lifting limit structure (25) has a snap-fit ​​end (26), and the inner wall of the cutter head mounting base (1) near the push button protrudes to form two symmetrical lifting snap-fit ​​blocks (27). Snap-fit ​​limit parts (28) are provided on the opposite surfaces of the two lifting snap-fit ​​blocks (27). Limiting chamfer structures (29) are formed on the upper and lower sides of the snap-fit ​​limit parts (28). During the lifting and lowering process, the snap-fit ​​end (26) is limited and connected with the corresponding limiting chamfer structure (29).

10. The shaver with independent lifting heads according to claim 8, characterized in that: The cutter head bracket (4) is also provided with a lifting guide column (30), which protrudes on both sides of the top of the cutter head bracket (4). The stationary cutter unit (10) is provided with a lifting guide groove (31) corresponding to the lifting guide column (30), and the lifting guide column (30) extends into the corresponding lifting guide groove (31) and connects with the stationary cutter unit (10).

11. A shaver having independently elevatable cutting heads as claimed in claim 2, characterized in that: The moving blade unit (5) includes a moving blade holder (32) and a moving blade (33). The stationary blade unit (10) includes a stationary blade (6) and a stationary blade fixing frame (34). The stationary blade fixing frame (34) is snap-fitted to the blade head bracket (4). A blade head mounting groove (35) is formed in the stationary blade fixing frame (34). The moving blade holder (32) and the moving blade (33) are both set in the blade head mounting groove (35). The moving blade (33) is set on the moving blade holder (32). The stationary blade (6) is set on the top of the stationary blade fixing frame (34) to cover the blade head mounting groove (35). An elastic element (36) is set between the moving blade holder (32) and the stationary blade fixing frame (34). The two ends of the elastic element (36) abut against the moving blade holder (32) and the stationary blade fixing frame (34) respectively. The moving blade holder (32) always maintains contact with the inner surface of the stationary blade (6) under the support of the elastic element (36).

12. The shaver with independent lifting heads according to claim 9, characterized in that: A stationary knife elastic element (37) is provided between the stationary knife fixing frame (34) and the knife head support (4), with the two ends of the stationary knife elastic element (37) abutting against the stationary knife fixing frame (34) and the knife head support (4) respectively.

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