Electric scissor head capable of achieving thorough shearing

Abstract

The utility model relates to the field of electric scissors, in particular to a tool bit of electric scissors, which is thorough in shearing and comprises a fixed blade and a movable blade which are connected in a sliding mode, the movable blade comprises scissor teeth, the fixed blade comprises shearing teeth, the scissor teeth correspond to the shearing teeth, the number of the scissor teeth on the movable blade is eight, and a connecting block is further arranged on the movable blade. The number of the connecting blocks on the movable blade is four, every two scissor teeth are fixedly connected with one connecting block, the elastic assembly is fixedly connected to the fixed blade, mounting rods are arranged on the elastic assembly, the number of the mounting rods on the elastic assembly is four, and the four mounting rods are connected to the four connecting blocks respectively. The mounting rods are used for pressing the movable blade on the fixed blade, the movable blade is provided with a conduction part used for transmitting power, the two mounting rods are located on one side of the conduction part, and the other two mounting rods are located on the other side of the conduction part; the electric scissors solve the problems that the shearing force of the traditional electric scissors is not strong enough and the shearing efficiency is low.

Description

Technical Field

[0001] This utility model relates to the field of electric scissors, and in particular to an electric scissor blade that provides thorough cutting. Background Technology

[0002] The electric scissors commonly seen today are a type of hair trimming device specifically designed for trimming hair. They work by using a motor to drive the moving blades on the cutting head mechanism to reciprocate laterally, which works in conjunction with the stationary blades to trim the hair. They are also relatively compact and easy to carry and use.

[0003] However, traditional electric scissors have a fixed blade and a moving blade on the blade head, which are slidably connected by a connector. The teeth on the fixed blade and the moving blade are not properly reinforced, resulting in insufficient meshing between the teeth. When cutting some tough hair, the cutting force of the blade head is not strong enough, which can lead to situations such as not being able to cut the hair or getting stuck during the cutting process, which seriously reduces the cutting efficiency of the electric scissors. Utility Model Content

[0004] To address the aforementioned problems, this invention proposes an electric scissor blade that provides thorough cutting, thus solving the issues of insufficient cutting force and low cutting efficiency in traditional electric scissors.

[0005] The technical solution adopted by this utility model is: an electric scissor head for thorough cutting, comprising a fixed blade and a movable blade, the fixed blade and the movable blade being slidably connected, the movable blade including scissor teeth, the fixed blade including shearing teeth, the scissor teeth and shearing teeth corresponding to each other, the number of scissor teeth on the movable blade being eight, the movable blade also being provided with connecting blocks, the number of connecting blocks on the movable blade being four, every two scissor teeth and one connecting block being fixedly connected, further comprising an elastic assembly, the elastic assembly being fixedly connected to the fixed blade, the elastic assembly being provided with mounting rods, the number of mounting rods on the elastic assembly being four, the four mounting rods being respectively connected to the four connecting blocks, the mounting rods being used to press the movable blade against the fixed blade, the movable blade being provided with a transmission part for transmitting power, two of the mounting rods being located on one side of the transmission part, and the other two mounting rods being located on the other side of the transmission part.

[0006] Through the above technical solution, the user connects the output end of the electric scissors body to the transmission part, and fully assembles the blade head and the body. The motor is driven by the power supply inside the body, and the driving force is transmitted to the moving blade through the output end, causing the moving blade to slide laterally back and forth on the fixed blade. The four mounting rods are respectively connected to four connecting blocks. Every two scissor teeth and one connecting block are fixedly connected, so that the mounting rods can press the scissor teeth against the shearing teeth of the fixed blade through the connecting blocks, making the scissor teeth and shearing teeth fit more tightly, thereby greatly improving the shearing force of the blade head of this utility model. The moving blade can work with the fixed blade to effectively cut tough hair, avoiding situations such as not being able to cut the hair or getting stuck during the cutting process, thus improving the cutting efficiency of the electric scissors.

[0007] Furthermore, the connecting block includes an integrally formed fixing plate and a connecting post. There are two connecting posts, which are located on both sides of the fixing plate, and the connecting posts are fixedly connected to the scissor teeth.

[0008] Through the above technical solution, the integrally molded fixing plate and connecting post make the connecting block very strong as a whole, and the two connecting posts are located on both sides of the fixing plate, so that a gap is formed between the fixing plate and the scissor teeth, preventing the connecting block from blocking the shearing of the scissor teeth.

[0009] Furthermore, the fixing piece is generally elliptical or rectangular with smooth edges.

[0010] Through the above technical solution, the fixed plate is elliptical or rectangular in shape, which makes the fixed plate have better load-bearing capacity, and the edge of the fixed plate is smoothly transitioned, avoiding protrusions, burrs, etc. that hinder the sliding of the moving blade on the fixed blade.

[0011] Furthermore, the end of the mounting rod is provided with an extension rod, the extension rod is vertically arranged, and the fixing plate is provided with a corresponding limiting hole, the extension rod being inserted into the limiting hole.

[0012] Through the above technical solution, the extension rod is inserted into the limiting hole, making the connection between the mounting rod and the moving blade very firm. The vertically set extension rod and the limiting hole make the elastic assembly and the moving blade quick to assemble, which is convenient for factory production and assembly and reduces production costs.

[0013] Furthermore, the fixed blade is provided with a mounting hole, and a fastener is threaded into the mounting hole. The elastic assembly is provided with a connecting part, and the connecting part abuts against the fastener and the fixed blade.

[0014] By using the above technical solution, the elastic assembly is brought close to the fixed blade, the connecting part is placed against the fixed blade, and then the fastener is tightened into the mounting hole until the fastener and the connecting part are in contact. This allows the connecting part to contact the fixed blade and the fastener, thus completing the assembly of the elastic assembly on the fixed blade, making the installation of the elastic assembly on the fixed blade very convenient.

[0015] Furthermore, the elastic assembly is a single-body torsion spring and / or a double-body torsion spring, wherein the double-body torsion spring is provided with two coils.

[0016] The above technical solution utilizes different combinations of single-body torsion springs and / or double-body torsion springs to assemble the elastic assembly, making the connection between the fixed and moving blades highly flexible during factory production and assembly. Single-body torsion springs and / or double-body torsion springs can be installed on the blade head according to different needs, thus improving the practicality of the blade head.

[0017] Furthermore, the fixed blade is provided with a mounting protrusion, and the movable blade is provided with a corresponding positioning protrusion, the positioning protrusion and the mounting protrusion abut against each other.

[0018] Through the above technical solution, the contact area between the positioning protrusion and the mounting protrusion is greatly reduced, resulting in less frictional resistance between the moving and fixed blades, smoother lateral reciprocating sliding of the moving blade, and reduced energy consumption during the use of electric scissors. Attached Figure Description

[0019] 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 the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is an exploded view of the present invention;

[0022] Figure 3 This is a schematic diagram of the fixed blade structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the moving blade structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the double-body torsion spring structure of this utility model;

[0025] The utility model reference information is as follows:

[0026] 1. Fixed blade; 2. Moving blade; 3. Scissor teeth; 4. Cutting teeth; 5. Connecting block;

[0027] 501. Fixing plate; 502. Connecting post; 6. Mounting rod; 7. Conducting part; 8. Extension rod;

[0028] 9. Limiting hole; 10. Mounting hole; 11. Fastener; 12. Connecting part; 13. Double torsion spring; 14. Coil; 15. Mounting protrusion; 16. Positioning protrusion;

[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] 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.

[0031] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0032] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0033] See Figures 1-5As shown, an electric scissor head for thorough cutting includes a fixed blade 1 and a movable blade 2, which are slidably connected. The movable blade 2 includes scissor teeth 3, and the fixed blade 1 includes shearing teeth 4. The scissor teeth 3 and shearing teeth 4 correspond to each other, and there are eight scissor teeth 3 on the movable blade 2. The movable blade 2 is also provided with four connecting blocks 5, and each pair of scissor teeth 3 and one connecting block 5 are fixedly connected. The head also includes an elastic assembly, which is fixedly connected to the fixed blade 1. The elastic assembly is provided with four mounting rods 6, which are respectively connected to four connecting blocks 5. The mounting rods 6 are used to press the movable blade 2 onto the fixed blade 1. The movable blade 2 is provided with a transmission part 7 for transmitting power. Two mounting rods 6 are located on one side of the transmission part 7, and the other two mounting rods 6 are located on the other side of the transmission part 7. The user connects the output end of the electric scissors to the transmission part 7 and fully assembles the blade head and the body. The motor is driven by the power supply inside the body, and the driving force is transmitted to the moving blade 2 through the output end, causing the moving blade 2 to slide laterally back and forth on the fixed blade 1. The four mounting rods 6 are respectively connected to the four connecting blocks 5. Each pair of scissor teeth 3 and one connecting block 5 are fixedly connected, so that the mounting rods 6 can press the scissor teeth 3 against the shearing teeth 4 of the fixed blade 1 through the connecting blocks 5, so that the scissor teeth 3 and the shearing teeth 4 fit more tightly, thereby greatly improving the shearing force of the blade head of this utility model. The moving blade 2 can work with the fixed blade 1 to effectively cut tough hair, avoiding situations such as not being able to cut the hair or getting stuck during the cutting process, thus improving the cutting efficiency of the electric scissors.

[0034] See Figure 4 As shown, the connecting block 5 includes an integrally formed fixing plate 501 and two connecting posts 502. The two connecting posts 502 are located on opposite sides of the fixing plate 501, and are fixedly connected to the shear teeth 3. The integrally formed fixing plate 501 and connecting posts 502 make the connecting block 5 very sturdy. The two connecting posts 502 located on opposite sides of the fixing plate 501 create a gap between the fixing plate 501 and the shear teeth 3, preventing the connecting block 5 from obstructing the shearing action of the shear teeth 3.

[0035] See Figure 1 , 4 As shown, the fixing plate 501 is generally elliptical or rectangular with smooth edges. The elliptical or rectangular shape of the fixing plate 501 improves its load-bearing capacity, and the smooth edges of the fixing plate 501 prevent burrs or other protrusions from hindering the sliding of the moving blade 2 on the fixed blade 1.

[0036] The preferred fixing piece 501 is elliptical in shape.

[0037] See Figure 2 ,5 As shown, an extension rod 8 is provided at the end of the mounting rod 6. The extension rod 8 is vertically positioned, and a limit hole 9 is correspondingly provided on the fixing plate 501. The extension rod 8 is inserted into the limit hole 9. The insertion of the extension rod 8 into the limit hole 9 makes the connection between the mounting rod 6 and the moving blade 2 very firm. The cooperation between the vertically positioned extension rod 8 and the limit hole 9 allows the elastic assembly and the moving blade 2 to be quickly assembled, which is convenient for factory production assembly and reduces production costs.

[0038] See Figures 1-3 As shown, the fixed blade 1 has a mounting hole 10, and a fastener 11 is threaded into the mounting hole 10. The elastic assembly has a connecting part 12, which abuts against the fastener 11 and the fixed blade 1. By bringing the elastic assembly close to the fixed blade 1, allowing the connecting part 12 to abut against the fixed blade 1, and then tightening the fastener 11 into the mounting hole 10 until the fastener 11 and the connecting part 12 abut against each other, the elastic assembly is assembled on the fixed blade 1. This makes the installation of the elastic assembly on the fixed blade 1 very convenient.

[0039] The preferred fastener 11 is a screw.

[0040] See Figure 1 , 2 As shown in Figure 5, the elastic assembly consists of a single torsion spring and / or a double torsion spring 13. Two coils 14 are provided on the double torsion spring 13. By utilizing different combinations of the single torsion spring and / or the double torsion spring 13 to assemble the elastic assembly, the connection between the fixed blade 1 and the moving blade 2 is highly flexible during factory assembly. The single torsion spring and / or the double torsion spring 13 can be installed on the blade head according to different needs, improving the practicality of the blade head.

[0041] The preferred elastic assembly of this utility model consists of two double-body torsion springs 13, which are located on both sides of the conduction part 7. Mounting rods 6 are provided on both sides of the double-body torsion springs 13. The connecting part 12 is provided on the double-body torsion springs 13 and located between the two coils 14. Each coil 14 is connected to a mounting rod 6.

[0042] See Figures 1-3 As shown, the fixed blade 1 is provided with a mounting protrusion 15, and the movable blade 2 is provided with a corresponding positioning protrusion 16. The positioning protrusion 16 and the mounting protrusion 15 abut against each other. The abutment between the positioning protrusion 16 and the mounting protrusion 15 significantly reduces the contact area between the fixed blade 1 and the movable blade 2, resulting in less frictional resistance between the movable blade 2 and the fixed blade 1. This makes the lateral reciprocating sliding of the movable blade 2 smoother and reduces energy loss during the use of the electric shears.

[0043] In use, the user connects the output end of the electric scissors to the transmission part 7 and fully assembles the blade head and the body. The motor is driven by the power supply inside the body, and the driving force is transmitted to the moving blade 2 through the output end, causing the moving blade 2 to slide laterally back and forth on the fixed blade 1. The four mounting rods 6 are respectively connected to the four connecting blocks 5. Each pair of scissor teeth 3 and one connecting block 5 are fixedly connected, so that the mounting rods 6 can press the scissor teeth 3 against the cutting teeth 4 of the fixed blade 1 through the connecting blocks 5, making the scissor teeth 3 and the cutting teeth 4 fit more tightly, thereby greatly improving the cutting force of the blade head. The moving blade 2 can work with the fixed blade 1 to effectively cut tough hair, improving the cutting efficiency of the electric scissors.

[0044] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A shear head of electric scissors, comprising a fixed blade (1) and a moving blade (2), the fixed blade (1) and the moving blade (2) are slidingly connected, characterized in that: The moving blade (2) includes scissor teeth (3), and the fixed blade (1) includes shearing teeth (4). The scissor teeth (3) and the shearing teeth (4) correspond to each other. There are eight scissor teeth (3) on the moving blade (2). The moving blade (2) is also provided with connecting blocks (5). There are four connecting blocks (5) on the moving blade (2). Every two scissor teeth (3) and one connecting block (5) are fixedly connected. The blade also includes an elastic assembly, which is fixedly connected to the fixed blade (1). On the elastic assembly, there are four mounting rods (6). The four mounting rods (6) are respectively connected to the four connecting blocks (5). The mounting rods (6) are used to press the moving blade (2) against the fixed blade (1). The moving blade (2) is provided with a transmission part (7) for transmitting power. Two of the mounting rods (6) are located on one side of the transmission part (7), and the other two mounting rods (6) are located on the other side of the transmission part (7).

2. A cutting head for an electric shear according to claim 1, wherein: The connecting block (5) includes an integrally formed fixing plate (501) and a connecting post (502). There are two connecting posts (502), which are located on both sides of the fixing plate (501). The connecting posts (502) and the scissor teeth (3) are fixedly connected.

3. A cutting head for an electric shear according to claim 2, wherein: The fixing piece (501) is generally elliptical or rectangular with smooth edges.

4. A cutting head for an electric shear according to claim 3, wherein: An extension rod (8) is provided at the end of the mounting rod (6). The extension rod (8) is vertically arranged. A limit hole (9) is provided on the fixing plate (501) accordingly. The extension rod (8) is inserted into the limit hole (9).

5. A shear head for an electric shear according to claim 2 or 3 or 4, wherein: The fixed blade (1) is provided with a mounting hole (10), and a fastener (11) is threaded into the mounting hole (10). The elastic assembly is provided with a connecting part (12), and the connecting part (12) abuts against the fastener (11) and the fixed blade (1).

6. A cutting head for an electric shear according to claim 5, wherein: The elastic assembly is a single torsion spring and / or a double torsion spring (13), and the double torsion spring (13) is provided with a coil (14), and the number of coils (14) on the double torsion spring (13) is two.

7. A shear head for an electric shear according to claim 2 or 3 or 4 or 6, wherein: The fixed blade (1) is provided with an mounting protrusion (15), and the movable blade (2) is provided with a corresponding positioning protrusion (16), the positioning protrusion (16) and the mounting protrusion (15) abut against each other.

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