Tool head device with novel fixed plate structure

Abstract

A kind of cutter head device with new fixed sheet structure, including cutter head assembly and fixed sheet, by forming limiting slot between cutter head limiting portion and cutter head connecting portion on fixed sheet, effective fixation and limiting of cutter head assembly can be realized, prevent it from shaking or falling off during working process.Long edge portion bottom end is inserted into limiting slot in alignment, greatly improve work efficiency.At the same time, the design of limiting slot also increases the contact area with cutter head assembly, so that the structural strength of overall cutter head device, make it more stable and reliable in use.

Description

Technical Field

[0001] This utility model relates to the field of hair cutting equipment technology, specifically to a blade device with a novel fixed plate structure. Background Technology

[0002] In existing technologies, the stationary blade holder in the razor head assembly is typically a hollow, open structure. Therefore, when the stationary blade holder is subjected to force, it deforms towards the center, causing changes in the gap between the stationary and moving blades, thus affecting the shaving effect. Therefore, there is an urgent need for a razor head assembly with higher structural strength and greater stability to meet practical requirements. Summary of the Invention

[0003] In view of this, the present invention provides a cutter head device with a novel fixed plate structure.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A novel cutting head device with a fixed plate structure includes a cutting head assembly and a fixed plate. The cutting head assembly has two opposing long sides. The fixed plate is disposed at the bottom of the long sides and connected to the cutting head assembly. The fixed plate has a cutting head limiting part and a cutting head connecting part. The cutting head limiting part protrudes towards the cutting head assembly and is formed at the center of the fixed plate. The cutting head connecting parts are disposed on both sides of the fixed plate body. A concave-convex connection structure is provided between the cutting head connecting part and the long sides of the cutting head assembly, and the concave-convex connection structure enables a concave-convex fit between the cutting head connecting part and the long sides of the cutting head assembly.

[0005] Preferably, the concave-convex mating structure comprises a limiting slot formed between the cutting head limiting portion and the cutting head connecting portion, and an insertion portion at the bottom end of the long side portion corresponding to the limiting slot, wherein the insertion portion at the bottom end of the long side portion of the cutting head assembly extends into the limiting slot and is limited and connected to the fixing plate.

[0006] Preferably, the cutter head connecting part is bent from both sides of the fixing plate toward the outer wall of the long side of the cutter head assembly, and a retaining groove is formed on the cutter head connecting part. The retaining groove has an upper groove wall and a lower groove wall, and the top of the cutter head limiting part is located between the upper groove wall and the lower groove wall of the retaining groove.

[0007] Preferably, a fixing plate connecting portion is formed by an indentation on the outer wall of the long side portion, and a snap-fit ​​end is formed by a protrusion on the fixing plate connecting portion. The snap-fit ​​end extends into the snap groove on the cutter head connecting portion and snaps into the fixing plate.

[0008] Preferably, reinforcing ribs are provided on the inner walls of the two opposite sides of the limiting slot, the reinforcing ribs are staggered, and the outer wall of the limiting slot is recessed in the portion corresponding to the reinforcing ribs.

[0009] Preferably, the thickness of the fixing piece is ≤0.5mm.

[0010] Preferably, an elastic element is provided between the cutter head assembly and the cutter head limiting portion of the fixing plate. The two ends of the elastic element abut against the top of the cutter head assembly and the cutter head limiting portion, respectively. An elastic element positioning structure is provided on the cutter head limiting portion, and the elastic element positioning structure limits and fixes the position of the elastic element on the cutter head limiting portion.

[0011] Preferably, the elastic element positioning structure is U-shaped, and the elastic element positioning structure is formed by bending the top of the cutter head limiting part toward the cutter head assembly. After the elastic element positioning structure is bent, a U-shaped groove is formed on the top of the cutter head limiting part.

[0012] Preferably, the cutter head limiting part has a central through hole, and the elastic element positioning structure protrudes symmetrically from the hole wall of the central through hole. The elastic element positioning structure is bent towards the cutter head assembly. The elastic element positioning structure has a radial limiting part and an axial limiting part extending away from the central axis of the central through hole. The bottom end of the elastic element is sleeved on the elastic element positioning structure. The radial limiting part limits the radial position of the elastic element between the cutter head assembly and the fixing plate, and the axial limiting part limits the axial position of the elastic element between the cutter head assembly and the fixing plate.

[0013] Preferably, the elastic element positioning structure has at least two opposing positioning ends protruding from the cutter head limiting part, and positioning grooves are formed on the opposing end faces of the two positioning ends. The two sides of the bottom end of the elastic element extend into the corresponding positioning grooves and are connected to the fixing plate.

[0014] Preferably, the cutter head assembly includes a mesh fixing frame, a movable cutter holder, a movable cutter, and a stationary cutter. The long side is formed on the mesh fixing frame, and a movable cutter mounting groove is formed inside the mesh fixing frame. The movable cutter holder is disposed in the movable cutter mounting groove, the movable cutter is disposed on the movable cutter holder, and the stationary cutter is disposed on the mesh fixing frame to cover the upper part of the movable cutter mounting groove.

[0015] The beneficial effects of this invention are as follows: By forming a limiting slot between the cutter head limiting part and the cutter head connecting part on the fixing plate, the cutter head assembly can be effectively fixed and limited, preventing it from shaking or falling off during operation. Simply align the bottom end of the long side with the limiting slot and insert it, greatly improving work efficiency. At the same time, the design of the limiting slot also increases the contact area with the cutter head assembly, enhancing the structural strength of the overall cutter head device and making it more stable and reliable during use. Attached Figure Description

[0016] 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.

[0017] 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 a schematic diagram showing the connection between the fixed plate and the elastic element; Appendix Figure 6 This is a schematic diagram illustrating the connection between the fixing piece and the elastic element in another embodiment; Appendix Figure 7 This is a schematic diagram of a fixing piece in another embodiment; Appendix Figure 8 This is a schematic diagram of a fixing piece in another embodiment; Appendix Figure 9 This is a schematic diagram of a fixing piece in another embodiment. Detailed Implementation

[0018] 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.

[0019] The present invention will now be further described with reference to the accompanying drawings.

[0020] This utility model provides the following technical solution: As attached Figure 1-9As shown, this utility model discloses a cutter head device with a novel fixing plate structure, including a cutter head assembly 1 and a fixing plate 2. The cutter head assembly 1 has two opposing long sides 3. The fixing plate 2 is disposed at the bottom of the long sides 3 and connected to the cutter head assembly 1. The fixing plate 2 has a cutter head limiting part 4 and a cutter head connecting part 5. The cutter head limiting part 4 protrudes towards the cutter head assembly 1 and is formed at the center of the fixing plate 2. The cutter head connecting part 5 is disposed on both sides of the fixing plate 2 body. A concave-convex connection structure is provided between the cutter head connecting part 5 and the long side 3 of the cutter head assembly 1. The concave-convex connection structure allows for a concave-convex fit between the cutter head connecting part 5 and the long side 3 of the cutter head assembly 1. Specifically, in this design, the concave-convex fit structure between the cutter head limiting part and the cutter head connecting part on the fixing plate not only achieves effective fixing of the cutter head assembly but also further enhances the overall stability of the device. The concave-convex structure can be formed on the long side 3 of the fixing plate 2 or the cutter head assembly 1. The two are connected by corresponding concave-convex structural ribs, which allow the cutter head assembly 1 to be accurately and quickly positioned and tightly engaged with the fixing plate 2 during assembly. In addition, the concave-convex mating structure design facilitates the disassembly and maintenance of the cutter head assembly 1, improving the practicality and convenience of the device.

[0021] Furthermore, the concave-convex mating structure comprises a limiting slot 6 formed between the cutter head limiting part 4 and the cutter head connecting part 5, and an insertion part 25 corresponding to the limiting slot 6 at the bottom end of the long side part 3. The insertion part 25 at the bottom end of the long side part 3 of the cutter head assembly 1 extends into the limiting slot 6 and engages with the fixing plate 2 for limiting. By forming the limiting slot 6 between the cutter head limiting part 4 and the cutter head connecting part 5 on the fixing plate 2, the cutter head assembly 1 can be effectively fixed and limited, preventing it from shaking or falling off during operation. Simply align the bottom end of the long side part 3 with the limiting slot 6 and insert it, greatly improving work efficiency. At the same time, the design of the limiting slot 6 also increases the contact area with the cutter head assembly 1, enhancing the structural strength of the overall cutter head device and making it more stable and reliable during use. Furthermore, the cutter head connecting part 5 is bent from both sides of the fixing piece 2 toward the outer wall of the long side 3 of the cutter head assembly 1. A retaining groove 7 is formed on the cutter head connecting part 5, and the retaining groove 7 has an upper groove wall 8 and a lower groove wall 9. The top of the cutter head limiting part 4 is located between the upper groove wall 8 and the lower groove wall 9 of the retaining groove 7. Specifically, in this embodiment, the retaining groove 7 design on the cutter head connecting part 5 not only enhances the connection stability between the cutter head assembly 1 and the fixing piece 2, but also facilitates installation and disassembly. By cleverly placing the top of the cutter head limiting part 4 between the upper groove wall 8 and the lower groove wall 9 of the retaining groove 7, a more secure locking effect is achieved, effectively avoiding loosening problems caused by vibration or external force.

[0022] Furthermore, a connecting portion for the fixing piece 2 is recessed on the outer wall of the long side portion 3, and a snap-fit ​​end 10 protrudes from the connecting portion of the fixing piece 2. The snap-fit ​​end 10 extends into the snap groove 7 on the cutter head connecting portion 5 and snaps into the fixing piece 2. Specifically, in this embodiment, by setting the snap-fit ​​end 10, when assembling the cutter head assembly 1 and the fixing piece 2, the snap-fit ​​end 10 can be directly snapped into the snap groove 7, which not only simplifies the installation steps and improves assembly efficiency, but also ensures the stability of the connection. The tight fit between the snap-fit ​​end 10 and the snap groove 7 further enhances the structural stability of the entire cutter head device, enabling it to withstand greater workloads and extend its service life. In addition, this snap-fit ​​connection method also facilitates subsequent maintenance and replacement, reduces maintenance costs, and improves the user experience.

[0023] Furthermore, reinforcing ribs 11 are provided on the inner walls of the two opposite sides of the limiting slot 6. These reinforcing ribs 11 are staggered, and the outer wall of the limiting slot 6 is partially recessed corresponding to the reinforcing ribs 11. Specifically, in this embodiment, the design of the reinforcing ribs 11 not only improves the structural strength of the limiting slot 6 but also enhances its contact tightness with the bottom end of the long side 3 of the cutter head assembly 1. The staggered reinforcing ribs 11 can more effectively resist external impacts and vibrations, ensuring that the cutter head assembly 1 remains stable even when operating at high speeds or under large cutting forces. Simultaneously, the partial recessed design of the outer wall of the limiting slot 6 corresponding to the reinforcing ribs 11 reduces the overall weight and optimizes stress distribution, avoiding the risk of damage caused by stress concentration. This detailed design not only improves the durability of the cutter head device but also ensures its reliability and safety in various harsh working environments.

[0024] Furthermore, the thickness of the fixing plate 2 is ≤0.5mm. Specifically, in this embodiment, the thickness of the fixing plate 2 is set to be less than or equal to 0.5mm, so that the elastic element 12 has more elastic space on the fixing plate 2, and can generate greater deformation when subjected to force, thereby more effectively absorbing and dispersing the impact force and protecting the cutter head assembly 1 from damage.

[0025] Furthermore, an elastic element 12 is provided between the cutter head assembly 1 and the cutter head limiting portion 4 of the fixing plate 2. The two ends of the elastic element 12 abut against the top ends of the cutter head assembly 1 and the cutter head limiting portion 4, respectively. An elastic element positioning structure 13 is provided on the cutter head limiting portion 4, which limits and fixes the position of the elastic element 12 on the cutter head limiting portion 4. Specifically, in this embodiment, the provision of the elastic element 12 further enhances the connection stability and buffering capacity between the cutter head assembly 1 and the fixing plate 2. When the cutter head assembly 1 is subjected to impact or vibration during operation, the elastic element 12 can respond quickly, absorbing and dispersing these impact forces, effectively reducing damage to the cutter head assembly 1 and the fixing plate 2. Simultaneously, the elastic element positioning structure 13 ensures the stable position of the elastic element 12 on the cutter head limiting portion 4, preventing it from shifting or falling off during stress, thereby ensuring the stability and reliability of the entire cutter head device.

[0026] Furthermore, the elastic element positioning structure 13 is U-shaped, formed by bending the top of the cutter head limiting part 4 towards the cutter head assembly 1. After bending, a U-shaped groove 14 is formed on the top of the cutter head limiting part 4. Specifically, in this embodiment, the U-shaped design of the elastic element positioning structure 13 not only provides stable support and limiting for the elastic element 12, but also optimizes the overall assembly structure. The presence of the U-shaped groove 14 allows the elastic element 12 to be easily embedded and firmly fixed on the cutter head limiting part 4, simplifying the installation process and ensuring the reliability and durability of the connection. In addition, the U-shaped elastic element positioning structure 13 also has a certain degree of elasticity, which can adapt to the deformation of the elastic element 12 caused by force to a certain extent, further improving the adaptability and durability of the entire cutter head device.

[0027] Furthermore, a central through hole 15 is formed in the center of the cutter head limiting part 4. The elastic element positioning structure 13 symmetrically protrudes from the wall of the central through hole 15. The elastic element positioning structure 13 is bent towards the cutter head assembly 1. The elastic element positioning structure 13 has a radial limiting part 16 and an axial limiting part 17 extending away from the central axis of the central through hole 15. The bottom end of the elastic element 12 is sleeved on the elastic element positioning structure 13. The radial limiting part 16 limits the radial position of the elastic element 12 between the cutter head assembly 1 and the fixing piece 2, and the axial limiting part 17 limits the axial position of the elastic element 12 between the cutter head assembly 1 and the fixing piece 2. Specifically, in this embodiment, the design of the central through hole 15 not only reduces the weight of the fixing piece 2, but also optimizes the overall stress distribution. Through the central through hole 15, the elastic element positioning structure 13 can protrude symmetrically and bend cleverly towards the cutter head assembly 1, forming a composite structure that has both a radial limiting part 16 and an axial limiting part 17. This design ensures that the elastic element 12 remains stably in its predetermined position after installation, without failing due to radial offset or being affected by axial movement in terms of its cushioning effect. The synergistic effect of the radial limiting part 16 and the axial limiting part 17 greatly enhances the stability and durability of the elastic element 12 in complex working environments, enabling the entire cutter head assembly to maintain excellent performance when faced with various impacts and vibrations.

[0028] Furthermore, the elastic element positioning structure 13 has at least two opposing positioning ends 18 protruding from the cutter head limiting part 4. Each of the opposing end faces of the two positioning ends 18 has a recessed positioning groove 19. The two sides of the bottom end of the elastic element 12 extend into the corresponding positioning groove 19 and connect with the fixing piece 2. Specifically, in this embodiment, during installation, the two sides of the bottom end of the elastic element 12 can easily extend into the corresponding positioning groove 19, achieving a tight and reliable connection with the fixing piece 2. This connection method not only ensures the stability of the elastic element 12 during the force process but also effectively prevents displacement or detachment that may occur during operation.

[0029] Furthermore, the cutter head assembly 1 includes a mesh fixing frame 20, a movable cutter holder 21, a movable cutter 22, and a stationary cutter 23. The long side portion 3 is formed on the mesh fixing frame 20. A movable cutter mounting groove 24 is formed in the mesh fixing frame 20. The movable cutter holder 21 is disposed in the movable cutter mounting groove 24. The movable cutter 22 is disposed on the movable cutter holder 21. The stationary cutter 23 is disposed on the mesh fixing frame 20 and covers the upper part of the movable cutter mounting groove 24.

[0030] 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 cutting head device with a novel fixing plate structure, comprising a cutting head assembly (1) and a fixing plate (2), wherein the cutting head assembly (1) has two opposing long sides (3), and the fixing plate (2) is disposed at the bottom of the long sides (3) and connected to the cutting head assembly (1), characterized in that: The fixing plate (2) has a cutting head limiting part (4) and a cutting head connecting part (5). The cutting head limiting part (4) protrudes towards the cutting head assembly (1) and is formed at the center of the fixing plate (2). The cutting head connecting part (5) is disposed on both sides of the fixing plate (2) body. A concave-convex connection structure is provided between the cutting head connecting part (5) and the long side part (3) of the cutting head assembly (1). The concave-convex connection structure allows for a concave-convex fit between the cutting head connecting part (5) and the long side part (3) of the cutting head assembly (1).

2. The cutter head device with a novel fixed plate structure according to claim 1, characterized in that: The concave-convex mating structure consists of a limiting slot (6) formed between the cutting head limiting part (4) and the cutting head connecting part (5) and an insertion part (25) at the bottom end of the long side part (3) corresponding to the limiting slot (6). The insertion part (25) at the bottom end of the long side part (3) of the cutting head assembly (1) extends into the limiting slot (6) and is limited and connected to the fixing piece (2).

3. The cutter head device with a novel fixed plate structure according to claim 1, characterized in that: The cutter head connecting part (5) is bent from both sides of the fixing piece (2) toward the outer wall of the long side (3) of the cutter head assembly (1). A retaining groove (7) is opened on the cutter head connecting part (5). The retaining groove (7) has an upper groove wall (8) and a lower groove wall (9). The top of the cutter head limiting part (4) is located between the upper groove wall (8) and the lower groove wall (9) of the retaining groove (7).

4. The cutter head device with a novel fixed plate structure according to claim 3, characterized in that: The outer wall of the long side (3) is recessed to form a fixing piece (2) connection part, and the fixing piece (2) connection part protrudes to form a buckle end (10). The buckle end (10) extends into the buckle groove (7) on the cutter head connection part (5) and is buckled to the fixing piece (2).

5. The cutter head device with a novel fixed plate structure according to claim 1, characterized in that: The inner walls of the limiting slot (6) on both sides are provided with reinforcing ribs (11), which are staggered and the outer wall of the limiting slot (6) is partially recessed in relation to the reinforcing ribs (11).

6. The cutter head device with a novel fixed plate structure according to claim 1, characterized in that: The thickness of the fixing piece (2) is ≤0.5mm.

7. The cutter head device with a novel fixed plate structure according to claim 1, characterized in that: An elastic element (12) is provided between the cutter head assembly (1) and the cutter head limiting part (4) of the fixing plate (2). The two ends of the elastic element (12) abut against the top of the cutter head assembly (1) and the cutter head limiting part (4) respectively. An elastic element positioning structure (13) is provided on the cutter head limiting part (4). The elastic element positioning structure (13) limits and fixes the position of the elastic element (12) on the cutter head limiting part (4).

8. The cutter head device with a novel fixed plate structure according to claim 7, characterized in that: The elastic element positioning structure (13) is U-shaped. The elastic element positioning structure (13) is formed by bending the top of the cutter head limiting part (4) toward the cutter head assembly (1). After the elastic element positioning structure (13) is bent, a U-shaped groove (14) is formed on the top of the cutter head limiting part (4).

9. The cutter head device with a novel fixed plate structure according to claim 7, characterized in that: The cutter head limiting part (4) has a central through hole (15) at its center. The elastic element positioning structure (13) is symmetrically protruding on the hole wall of the central through hole (15). The elastic element positioning structure (13) is bent towards the cutter head assembly (1). The elastic element positioning structure (13) has a radial limiting part (16) and an axial limiting part (17) extending away from the central axis of the central through hole (15). The bottom end of the elastic element (12) is sleeved on the elastic element positioning structure (13). The radial limiting part (16) limits the radial position of the elastic element (12) between the cutter head assembly (1) and the fixing piece (2). The axial limiting part (17) limits the axial position of the elastic element (12) between the cutter head assembly (1) and the fixing piece (2).

10. The cutter head device with a novel fixed plate structure according to claim 7, characterized in that: The elastic element positioning structure (13) is formed by protruding at least two opposing positioning ends (18) on the cutter head limiting part (4). The two opposing end faces of the positioning ends (18) are recessed to form positioning grooves (19). The two sides of the bottom end of the elastic element (12) extend into the corresponding positioning grooves (19) and are connected to the fixing piece (2).

11. The cutter head device with a novel fixed plate structure according to claim 1, characterized in that: The cutter head assembly (1) includes a mesh fixing frame (20), a moving cutter holder (21), a moving cutter (22), and a stationary cutter (23). The long side (3) is formed on the mesh fixing frame (20). A moving cutter mounting groove (24) is formed in the mesh fixing frame (20). The moving cutter holder (21) is disposed in the moving cutter mounting groove (24). The moving cutter (22) is disposed on the moving cutter holder (21). The stationary cutter (23) is disposed on the mesh fixing frame (20) to cover the upper part of the moving cutter mounting groove (24).

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