Tool bit assembly fixing structure

Abstract

According to the tool bit assembly fixing structure, the clamping end of the top end of the tool bit assembly extends into the clamping groove of the shell, so that a stable connection relation is formed between the tool bit assembly and the shell. Besides, in the design, the clamping end formed on the tool bit assembly in a protruding mode can reduce the contact area between the clamping end and the shell, so that friction force is reduced, and the opening and closing efficiency of the shell in the using process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hair cutting equipment, in particular to a cutting head assembly fixing structure. Background Art

[0002] In existing technology, the connection between the blade assembly and the housing is typically surface contact, which increases friction between the two, increasing the resistance to the blade assembly's movement and affecting the device's performance and lifespan. Furthermore, due to the high friction, the blade assembly tends to generate heat during operation, which not only reduces the blade's cutting efficiency but can also cause discomfort to the user. Summary of the Invention

[0003] In view of this, the utility model provides a cutter head assembly fixing structure.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A cutting head assembly fixing structure includes a shell and a cutting head assembly. The shell is movably arranged on the cutting head assembly. A slot is provided on the shell. A clamping end is provided at the center of the top of the cutting head assembly corresponding to the slot. The clamping end extends into the slot and is connected to the shell. The groove walls on both sides of the slot are in contact with the two sides of the clamping end to limit the clamping end in a direction perpendicular to the slot position on the shell.

[0006] Preferably, the clamping end is in a cylindrical, elliptical or square structure.

[0007] Preferably, sliding guide parts are also provided on both sides of the shell, and the sliding guide parts are provided with sliding grooves arranged along the length direction of the shell. The two sides of the cutter head assembly extend into the corresponding sliding grooves and are connected to the sliding guide parts. The shell slides with the cutter head assembly through the sliding grooves and moves on the cutter head assembly.

[0008] Preferably, both side end surfaces of the cutter head assembly close to the slide groove are protruded to form sliding protrusions, and a concave-convex matching structure is formed between the sliding protrusions and the groove wall of the slide groove.

[0009] Preferably, the concave-convex matching structure includes a convex structure protruding from the sliding protrusion or the wall of the sliding groove and a concave structure formed on the sliding protrusion or the wall of the sliding groove, and the concave-convex matching is achieved between the sliding protrusion and the wall of the sliding groove through the corresponding convex structure and concave structure.

[0010] Preferably, the convex surface structure is a convex rib formed on the sliding protrusion or the wall of the sliding groove.

[0011] Preferably, the concave structure is a wave pattern provided on the sliding protrusion or the wall of the sliding groove.

[0012] Preferably, the cutter head assembly includes a movable cutter, a stationary cutter, a movable cutter holder and a stationary cutter holder, and the clamping end protrudes and is formed on an end surface of the movable cutter holder close to the housing.

[0013] The beneficial effect of this utility model is that by inserting the top clamping end of the blade assembly into the clamping groove of the housing, a stable connection is formed between the blade assembly and the housing. In addition, in this design, the clamping end protruding from the blade assembly can reduce the contact area with the housing, thereby reducing friction and improving the efficiency of opening and closing the housing during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Attachment Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Attachment Figure 2 This is a schematic diagram of the exploded structure of the housing and the cutter head assembly;

[0017] Attachment Figure 3 This is a cross-sectional view of the utility model;

[0018] Attachment Figure 4 Schematic diagram of the shell. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

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

[0021] The utility model provides the following technical solutions:

[0022] As attached Figure 1-4As shown, the utility model discloses a cutting head assembly fixing structure, including a shell 1 and a cutting head assembly 2, wherein the shell 1 is movably arranged on the cutting head assembly 2, a slot 3 is provided on the shell 1, a clamping end 4 is provided at the top center of the cutting head assembly 2 corresponding to the slot 3, the clamping end 4 extends into the slot 3 and is connected to the shell 1, and the groove walls on both sides of the slot 3 are fitted with the two sides of the clamping end 4 to limit the position of the clamping end 4 on the shell 1 in a direction perpendicular to the slot 3. Specifically, in the present design, a stable connection relationship is formed between the cutting head assembly 2 and the shell by extending the clamping end 4 at the top end of the cutting head assembly 2 into the slot 3 of the shell 1. In addition, in the present design, the clamping end 4 protruding from the cutting head assembly 2 can reduce the contact area with the shell 1, thereby reducing friction and improving the efficiency of opening and closing the shell during use.

[0023] Furthermore, the snap-in end 4 is configured in a cylindrical, elliptical or square shape. Specifically, in this embodiment, the snap-in end 4 is designed to be elliptical to meet the needs of different usage scenarios. The elliptical snap-in end 4 can provide better stability and adaptability when inserted into the slot 3 of the housing 1. Due to the different sizes of the major and minor axes of the elliptical shape, it can achieve multi-directional fine-tuning in the slot 3, thereby ensuring a tighter and more stable connection between the cutter head assembly 2 and the housing 1. The snap-in end 4 with a square structure can provide a larger contact area, thereby increasing the strength of the connection. In some cases, the snap-in end 4 with a square structure may be more suitable for withstanding greater torque or pressure. In addition, when the snap-in end 4 with a square structure is inserted into the slot 3, due to the right-angle design of its edge, it can provide a self-locking mechanism, further enhancing the fixing effect between the cutter head assembly 2 and the housing 1. The cylindrical snap-in end 4 can provide a uniform contact area, ensuring smoothness and stability when inserted into the slot 3. The cylindrical clamping end 4 is symmetrical in design, so that the connection strength and stability can be kept consistent no matter which direction it is inserted from.

[0024] Furthermore, sliding guides 5 are provided on both sides of the housing 1. The sliding guides 5 are provided with slide grooves 6 arranged along the length direction of the housing 1. Both sides of the cutter head assembly 2 extend into the corresponding slide grooves 6 and are connected to the sliding guides 5. The housing 1 slides with the cutter head assembly 2 through the slide grooves 6 and moves on the cutter head assembly 2. Specifically, in this embodiment, the sliding fit between the cutter head assembly 2 and the housing 1 is achieved by extending the slide grooves 6 on both sides of the cutter head assembly 2.

[0025] Furthermore, the cutter head assembly 2 has protruding sliding bumps 7 on both side end surfaces adjacent to the chute 6. These sliding bumps 7 form a concave-convex fit with the walls of the chute 6. Specifically, in this embodiment, the shape of the sliding bumps 7 matches that of the chute 6, ensuring precise positioning and secure connection of the cutter head assembly 2 within the chute 6. The surface of the sliding bumps 7 is finely machined to reduce friction with the chute 6, thereby improving the sliding performance and service life of the entire device.

[0026] Furthermore, the concave-convex matching structure includes a convex structure 8 protruding from the sliding protrusion 7 or the wall of the chute 6 and a concave structure 9 formed on the sliding protrusion 7 or the wall of the chute 6. The sliding protrusion 7 and the wall of the chute 6 are matched with each other through the corresponding convex structure 8 and concave structure 9. Specifically, in this embodiment, the matching design of the convex structure 8 and the concave structure 9 is a precise match, ensuring that when the cutter head assembly 2 moves, there will be no unnecessary looseness or shaking between the sliding protrusion 7 and the chute 6, thereby improving the stability and service life of the overall structure. In addition, this concave-convex matching structure also has a certain self-cleaning function, which can prevent dust and debris from accumulating inside the chute 6, ensuring the reliability of the long-term operation of the equipment.

[0027] Furthermore, the convex structure 8 is a rib formed protruding from the sliding protrusion 7 or the wall of the chute 6. Specifically, in this embodiment, the concave structure 9 is a groove formed in the wall of the chute 6. In practical applications, this design ensures the precision and stability of the cutter head assembly 2 as it slides within the chute 6. The combination of the groove and the rib not only effectively prevents the cutter head assembly from shifting during use, but also reduces wear caused by friction, thereby extending the service life of the entire device.

[0028] Furthermore, the concave structure 9 is a wave pattern provided on the sliding protrusion 7 or the wall of the slide groove 6. Specifically, in this embodiment, the concave structure 9 of the wave pattern can provide additional friction resistance, thereby increasing the stability of the cutter head assembly 2 when it slides. The design of the wave pattern not only helps to absorb and disperse the vibration caused by sliding, but also can play a buffering role to a certain extent, reducing the impact on the cutter head assembly 2 and the slide groove 6. In addition, the concave and convex structure of the wave pattern increases the contact area, making the positioning of the cutter head assembly 2 in the slide groove 6 more precise, further improving the performance and reliability of the device.

[0029] Furthermore, the cutter head assembly 2 includes a movable cutter 10 , a stationary cutter 11 , a movable cutter holder 12 and a stationary cutter holder 13 , and the clamping end 4 is protrudingly formed on an end surface of the movable cutter holder 12 close to the housing 1 .

[0030] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cutter head assembly fixing structure, comprising a housing (1) and a cutter head assembly (2), characterized in that: The housing (1) is movably arranged on the cutter head assembly (2); a slot (3) is provided on the housing (1); a snap-on end (4) is provided at the top center of the cutter head assembly (2) corresponding to the slot (3); the snap-on end (4) extends into the slot (3) and is connected to the housing (1); the groove walls on opposite sides of the slot (3) fit with the two sides of the snap-on end (4) to limit the position of the snap-on end (4) on the housing (1) in a direction perpendicular to the slot (3).

2. The cutter head assembly fixing structure according to claim 1, characterized in that: The clamping end (4) is arranged in a cylindrical, elliptical or square structure.

3. The cutter head assembly fixing structure according to claim 1, characterized in that: Sliding guides (5) are further provided on both sides of the housing (1), and the sliding guides (5) are provided with slide grooves (6) arranged along the length direction of the housing (1). Both sides of the cutter head assembly (2) extend into the corresponding slide grooves (6) and are connected to the sliding guides (5). The housing (1) slides with the cutter head assembly (2) through the slide grooves (6) and moves on the cutter head assembly (2).

4. The cutter head assembly fixing structure according to claim 3, characterized in that: Both side end surfaces of the cutter head assembly (2) close to the slide groove (6) are protruded to form sliding protrusions (7), and a concave-convex matching structure is formed between the sliding protrusions (7) and the groove wall of the slide groove (6).

5. The cutter head assembly fixing structure according to claim 4, characterized in that: The concave-convex matching structure comprises a convex structure (8) formed on the sliding protrusion (7) or the groove wall of the sliding groove (6) and a concave structure (9) formed on the sliding protrusion (7) or the groove wall of the sliding groove (6). The sliding protrusion (7) and the groove wall of the sliding groove (6) are matched with each other through the corresponding convex structure (8) and concave structure (9).

6. The cutter head assembly fixing structure according to claim 5, characterized in that: The convex surface structure (8) is a convex rib formed on the sliding protrusion (7) or the groove wall of the sliding groove (6).

7. The cutter head assembly fixing structure according to claim 5, characterized in that: The concave surface structure (9) is a wave pattern provided on the sliding protrusion (7) or the wall of the sliding groove (6).

8. The cutter head assembly fixing structure according to claim 1, wherein: The cutter head assembly (2) comprises a movable cutter (10), a stationary cutter (11), a movable cutter seat (12) and a stationary cutter seat (13); the clamping end (4) is protrudingly formed on an end surface of the movable cutter seat (12) close to the housing (1).

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