Tool bit of electric scissors

Abstract

The utility model relates to the field of electric scissors, in particular to a tool bit of electric scissors, which comprises a static blade, a movable blade and an elastic assembly, the static blade is slidably connected with the movable blade, the elastic assembly is fixedly connected onto the static blade, four connecting rods are arranged on the elastic assembly, and the elastic assembly is fixedly connected onto the static blade. The four connecting rods are fixedly connected to the movable blade, the connecting rods are used for pressing the movable blade on the static blade, a conduction part for transmitting power is arranged on the movable blade, two connecting rods are located on one side of the conduction part, and the other two connecting rods are located on the other side of the conduction part; the utility model provides a tool bit of electric scissors. The tool bit of the electric scissors solves the problems that traditional electric scissors are not high enough in pruning speed and low in pruning efficiency.

Description

Technical Field

[0001] This utility model relates to the field of electric scissors, and in particular to a blade head for electric scissors. 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 use a single elastic mechanism to connect the stationary blade and the moving blade. There are usually two connection points between the elastic mechanism and the moving blade, which limits the load-bearing capacity of the elastic mechanism. The distance between the two connection points cannot be too large, resulting in a narrower overall moving blade and a smaller cutting surface for hair. Therefore, traditional electric scissors are not fast enough and have low cutting efficiency. Utility Model Content

[0004] To address the aforementioned problems, this invention proposes a blade for electric scissors, which solves the issues of insufficient trimming speed and low cutting efficiency of traditional electric scissors.

[0005] The technical solution adopted by this utility model is: a blade head of an electric scissor, including a stationary blade and a moving blade, the stationary blade and the moving blade being slidably connected, and also including an elastic assembly, the elastic assembly being fixedly connected to the stationary blade, the elastic assembly being provided with connecting rods, the number of the connecting rods on the elastic assembly being four, the four connecting rods being fixedly connected to the moving blade, the connecting rods being used to press the moving blade against the stationary blade, the moving blade being provided with a transmission part for transmitting power, two of the connecting rods being located on one side of the transmission part, and the other two connecting 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 stationary blade. Two connecting rods are located on one side of the transmission part, and two other connecting rods are located on the other side of the transmission part. The four connecting rods are fixedly connected to the moving blade, which greatly increases the number of connection points between the elastic assembly and the moving blade. The overall load-bearing capacity of the elastic assembly is higher, and the moving blade can be made wider, greatly increasing its cutting surface for hair. This greatly improves the overall cutting efficiency of the electric scissors of this invention.

[0007] 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.

[0008] 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 stationary 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 cutter head according to different needs, thus improving the practicality of the cutter head.

[0009] Furthermore, the stationary blade is provided with a mounting hole, and a fastener is threaded into the mounting hole. The single torsion spring is provided with a first connecting part, which abuts against the stationary blade and the fastener. The double torsion spring is provided with a second connecting part, which abuts against the stationary blade and the fastener.

[0010] With the above technical solution, the single torsion spring is brought close to the stationary blade, and the first connecting part abuts against the stationary blade. Then, the fastener is tightened into the mounting hole until the fastener and the connecting part abut against each other, so that the first connecting part abuts against the stationary blade and the fastener. Thus, the single torsion spring is assembled on the stationary blade, making the installation of the single torsion spring on the stationary blade very convenient. Similarly, the double torsion spring is brought close to the stationary blade, and the second connecting part abuts against the stationary blade. Then, the fastener is tightened into the mounting hole until the fastener and the connecting part abut against each other, so that the second connecting part abuts against the stationary blade and the fastener. Thus, the double torsion spring is assembled on the stationary blade, making the installation of the double torsion spring on the stationary blade very convenient.

[0011] Furthermore, an extension rod is provided at the end of the connecting rod. The extension rod is vertically arranged, and a positioning hole is correspondingly provided on the moving blade. The extension rod is inserted into the positioning hole.

[0012] With the above technical solution, the extension rod is inserted into the positioning hole, which makes the connection between the connecting rod and the moving blade very firm. The vertically set extension rod and the positioning 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 conductive part includes a positioning notch and an extension plate, the extension plate being fixedly connected to the edge of the positioning notch.

[0014] With the above technical solution, the user can fit the output end of the machine body into the positioning notch, and the extension plate can effectively restrict the movement of the output end, preventing the blade head from coming off the machine body when the electric scissors are in use, so that the driving force can be smoothly transmitted to the blade head.

[0015] Furthermore, the stationary blade is provided with a mounting protrusion, and the moving blade is provided with a corresponding positioning protrusion, the positioning protrusion and the mounting protrusion abut against each other.

[0016] 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 stationary blades, smoother lateral reciprocating sliding of the moving blade, and reduced energy consumption during the use of electric scissors. 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 the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0019] Figure 2 This is an exploded view of Embodiment 1 of the present invention;

[0020] Figure 3 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model;

[0021] Figure 4 This is an exploded view of Embodiment 2 of this utility model;

[0022] Figure 5 This is a schematic diagram of the overall structure of Embodiment 3 of this utility model;

[0023] Figure 6 This is an exploded view of Embodiment 3 of the present invention;

[0024] Figure 7 This is a schematic diagram of the overall structure of Embodiment 4 of this utility model;

[0025] Figure 8 This is an exploded view of Embodiment 4 of this utility model;

[0026] Figure 9 This is a schematic diagram of the moving blade structure of this utility model;

[0027] Figure 10 This is a schematic diagram of the stationary blade structure of this utility model;

[0028] Figure 11 This is a schematic diagram of the double-body torsion spring structure of this utility model;

[0029] Figure 12This is a schematic diagram of the single torsion spring structure of this utility model;

[0030] The utility model reference information is as follows:

[0031] 1. Stationary blade; 2. Moving blade; 3. Connecting rod; 4. Conducting part; 5. Coil; 6. Mounting hole; 7. Fastener; 8. First connecting part; 9. Second connecting part; 10. Extension rod; 11. Positioning hole; 12. Positioning notch; 13. Extension plate; 14. Mounting protrusion; 15. Positioning protrusion; 16. Single torsion spring; 17. Double torsion spring;

[0032] 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

[0033] 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.

[0034] 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.

[0035] 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.

[0036] See Figures 1-12As shown, the blade head of an electric scissor includes a stationary blade 1 and a movable blade 2, which are slidably connected. It also includes an elastic assembly, which is fixedly connected to the stationary blade 1. The elastic assembly is provided with connecting rods 3, and there are four connecting rods 3 on the elastic assembly. The four connecting rods 3 are fixedly connected to the movable blade 2. The connecting rods 3 are used to press the movable blade 2 against the stationary blade 1. The movable blade 2 is provided with a transmission part 4 for transmitting power. Two connecting rods 3 are located on one side of the transmission part 4, and the other two connecting rods 3 are located on the other side of the transmission part 4. The user attaches the output end of the electric scissors body to the transmission part 4 and fully assembles the blade head and 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 stationary blade 1. Two connecting rods 3 are located on one side of the transmission part 4, and two other connecting rods 3 are located on the other side of the transmission part 4. The four connecting rods 3 are fixedly connected to the moving blade 2, which greatly increases the number of connection points between the elastic assembly and the moving blade 2. The overall load-bearing capacity of the elastic assembly is higher, and the moving blade 2 can be made wider, greatly increasing its cutting surface for hair. This greatly improves the overall cutting efficiency of the electric scissors of this invention.

[0037] Based on the different number of components of the single-body torsion spring 16 and the double-body torsion spring 17 in the elastic assembly, this utility model is divided into the following four embodiments;

[0038] Example 1: The elastic assembly consists of only two double-body torsion springs 17, and each double-body torsion spring 17 is provided with a connecting rod 3 at both ends.

[0039] See Figures 1-2 As shown, the elastic assembly is a double-body torsion spring 17, and two coils 5 are provided on the double-body torsion spring 17. By using two double-body torsion springs 17 to assemble the elastic assembly, the connection between the stationary blade 1 and the moving blade 2 is very flexible during factory production assembly. Installing the two double-body torsion springs 17 onto the blade head facilitates factory production assembly.

[0040] See Figures 1-2 As shown, the stationary blade 1 has a mounting hole 6, and a fastener 7 is threaded into the mounting hole 6. The double-body torsion spring 17 has a second connecting part 9, which abuts against the stationary blade 1 and the fastener 7. By bringing the double-body torsion spring 17 close to the stationary blade 1, allowing the second connecting part 9 to abut against the stationary blade 1, and then tightening the fastener 7 into the mounting hole 6 until the fastener 7 and the connecting part abut against each other, the double-body torsion spring 17 is assembled on the stationary blade 1, making its installation on the stationary blade 1 very convenient.

[0041] Example 2: The elastic assembly consists of only four individual torsion springs 16, and each individual torsion spring 16 is provided with a connecting rod 3.

[0042] See Figures 3-4 As shown, the elastic assembly is a single torsion spring 16. By using four single torsion springs 16 to assemble the elastic assembly, the connection between the stationary blade 1 and the moving blade 2 is very flexible during factory production assembly. Installing the four single torsion springs 16 onto the blade head facilitates factory production assembly.

[0043] See Figures 3-4 As shown, the stationary blade 1 has a mounting hole 6, and a fastener 7 is threaded into the mounting hole 6. The single torsion spring 16 has a first connecting part 8, which abuts against the stationary blade 1 and the fastener 7. By bringing the single torsion spring 16 close to the stationary blade 1, allowing the first connecting part 8 to abut against the stationary blade 1, and then tightening the fastener 7 into the mounting hole 6 until the fastener 7 and the connecting part abut against each other, the single torsion spring 16 is assembled on the stationary blade 1, making its installation on the stationary blade 1 very convenient.

[0044] Example 3: The elastic assembly consists of two single torsion springs 16 and one double torsion spring 17. Each single torsion spring 16 is provided with a connecting rod 3. Both ends of the double torsion spring 17 are provided with connecting rods 3. The two connecting rods 3 on the double torsion spring 17 are located on both sides of the conduction part 4. The two single torsion springs 16 are located on both sides of the conduction part 4, and both single torsion springs 16 are located between the two connecting rods 3 of the double torsion spring 17.

[0045] See Figures 5-6 As shown, the elastic assembly consists of two individual torsion springs 16 and one double-body torsion spring 17. Two coils 5 are provided on the double-body torsion spring 17. By assembling the elastic assembly using the combination of individual torsion springs 16 and double-body torsion springs 17, the connection between the stationary blade 1 and the moving blade 2 is highly flexible during factory assembly. Installing the two individual torsion springs 16 and the double-body torsion spring 17 onto the cutting head improves the practicality of the cutting head.

[0046] See Figures 5-6As shown, the stationary blade 1 is provided with a mounting hole 6, and a fastener 7 is connected to the internal thread of the mounting hole 6. The single torsion spring 16 is provided with a first connecting part 8, which abuts against the stationary blade 1 and the fastener 7. The double torsion spring 17 is provided with a second connecting part 9, which abuts against the stationary blade 1 and the fastener 7. Bring the single torsion spring 16 close to the stationary blade 1, so that the first connecting part 8 abuts against the stationary blade 1, and then tighten the fastener 7 into the mounting hole 6 until the fastener 7 and the connecting part abut against each other, so that the first connecting part 8 abuts against the stationary blade 1 and the fastener 7. Then the single torsion spring 16 is assembled on the stationary blade 1, making the installation of the single torsion spring 16 on the stationary blade 1 very convenient. Bring the double torsion spring 17 close to the stationary blade 1, so that the second connecting part 9 abuts against the stationary blade 1, and then tighten the fastener 7 into the mounting hole 6 until the fastener 7 and the connecting part abut against each other, so that the second connecting part 9 abuts against the stationary blade 1 and the fastener 7. Then the double torsion spring 17 is assembled on the stationary blade 1, making the installation of the double torsion spring 17 on the stationary blade 1 very convenient.

[0047] Example 4: The elastic assembly consists of two single torsion springs 16 and one double torsion spring 17. The two single torsion springs 16 are located on both sides of the conduction part 4, and the double torsion spring 17 is located between the two single torsion springs 16. A connecting rod 3 is provided on one single torsion spring 16, and connecting rods 3 are provided at both ends of the double torsion spring 17.

[0048] See Figures 7-8 As shown, the elastic assembly consists of two individual torsion springs 16 and one double-body torsion spring 17. Two coils 5 are provided on the double-body torsion spring 17. By assembling the elastic assembly using the combination of individual torsion springs 16 and double-body torsion springs 17, the connection between the stationary blade 1 and the moving blade 2 is highly flexible during factory assembly. Installing the two individual torsion springs 16 and the double-body torsion spring 17 onto the cutting head improves the practicality of the cutting head.

[0049] See Figures 7-8As shown, the stationary blade 1 is provided with a mounting hole 6, and a fastener 7 is connected to the internal thread of the mounting hole 6. The single torsion spring 16 is provided with a first connecting part 8, which abuts against the stationary blade 1 and the fastener 7. The double torsion spring 17 is provided with a second connecting part 9, which abuts against the stationary blade 1 and the fastener 7. Bring the single torsion spring 16 close to the stationary blade 1, so that the first connecting part 8 abuts against the stationary blade 1, and then tighten the fastener 7 into the mounting hole 6 until the fastener 7 and the connecting part abut against each other, so that the first connecting part 8 abuts against the stationary blade 1 and the fastener 7. Then the single torsion spring 16 is assembled on the stationary blade 1, making the installation of the single torsion spring 16 on the stationary blade 1 very convenient. Bring the double torsion spring 17 close to the stationary blade 1, so that the second connecting part 9 abuts against the stationary blade 1, and then tighten the fastener 7 into the mounting hole 6 until the fastener 7 and the connecting part abut against each other, so that the second connecting part 9 abuts against the stationary blade 1 and the fastener 7. Then the double torsion spring 17 is assembled on the stationary blade 1, making the installation of the double torsion spring 17 on the stationary blade 1 very convenient.

[0050] The preferred embodiment of this utility model is 1. Embodiments 1, 2, 3 and 4 are also applicable to the following description.

[0051] The preferred fastener 7 is a screw, which helps reduce factory production costs.

[0052] See Figures 11-12 As shown, an extension rod 10 is provided at the end of the connecting rod 3. The extension rod 10 is vertically arranged, and a positioning hole 11 is correspondingly provided on the moving blade 2. The extension rod 10 is inserted into the positioning hole 11. The insertion of the extension rod 10 into the positioning hole 11 makes the connection between the connecting rod 3 and the moving blade 2 very firm. The cooperation between the vertically arranged extension rod 10 and the positioning hole 11 allows the elastic assembly and the moving blade 2 to be quickly assembled, which is convenient for factory production assembly and reduces production costs.

[0053] See Figure 9 As shown, the transmission part 4 includes a positioning notch 12 and an extension plate 13, with the extension plate 13 fixedly connected to the edge of the positioning notch 12. The user can fit the output end on the machine body into the positioning notch 12, and the extension plate 13 can effectively restrict the movement of the output end, preventing the blade from coming off the machine body during use, so that the driving force can be smoothly transmitted to the blade.

[0054] See Figures 1-10 As shown, the stationary blade 1 is provided with a mounting protrusion 14, and the moving blade 2 is provided with a corresponding positioning protrusion 15. The positioning protrusion 15 and the mounting protrusion 14 abut against each other. The abutment between the positioning protrusion 15 and the mounting protrusion 14 significantly reduces the contact area between the stationary blade 1 and the moving blade 2, resulting in less frictional resistance between the moving blade 2 and the stationary blade 1. This makes the lateral reciprocating sliding of the moving blade 2 smoother and reduces energy loss during the use of the electric shears.

[0055] In use, the user connects the output end of the electric scissors to the transmission part 4 and assembles the blade head and 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 stationary blade 1. Two connecting rods 3 are located on one side of the transmission part 4, and two other connecting rods 3 are located on the other side of the transmission part 4. The four connecting rods 3 are fixedly connected to the moving blade 2, which greatly increases the number of connection points between the elastic assembly and the moving blade 2. The overall load-bearing capacity of the elastic assembly is higher, and the moving blade 2 can be made wider, greatly increasing its cutting surface for hair. This greatly improves the overall cutting efficiency of the electric scissors of this invention.

[0056] 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 head of an electric scissors, comprising a stationary blade (1) and a moving blade (2), the stationary blade (1) and the moving blade (2) being slidingly connected, characterized in that: Further include elastic assembly, the elastic assembly is fixedly connected on the static blade (1), be provided with connecting rod (3) on the elastic assembly, the number of connecting rod (3) on the elastic assembly is four, four connecting rod (3) is fixedly connected on the dynamic blade (2), the connecting rod (3) is used to compress the dynamic blade (2) on the static blade (1), the dynamic blade (2) is provided with the transmission part (4) for transmitting power, two connecting rod (3) are located on the side of the transmission part (4), and the other two connecting rod (3) are located on the other side of the transmission part (4).

2. A blade head for an electric scissors according to claim 1, characterized in that: The elastic assembly is a single torsion spring (16) or / and a double torsion spring (17), the double torsion spring (17) is provided with a winding (5), and the number of windings (5) on the double torsion spring (17) is two.

3. A blade head for an electric scissors according to claim 2, characterized in that: The static blade (1) is provided with a mounting hole (6), the mounting hole (6) is threadedly connected with a fastener (7), the single torsion spring (16) is provided with a first connecting part (8), the first connecting part (8) is in abutment with the static blade (1) and the fastener (7), the double torsion spring (17) is provided with a second connecting part (9), and the second connecting part (9) is in abutment with the static blade (1) and the fastener (7).

4. A blade head for an electric scissors according to claim 3, characterized in that: The connecting rod (3) is provided with an extension rod (10) at the end, the extension rod (10) is vertically arranged, and the dynamic blade (2) is correspondingly provided with a positioning hole (11), and the extension rod (10) is inserted into the positioning hole (11).

5. A blade head for an electric scissors according to claim 1 or 2 or 3 or 4, characterized in that: The transmission part (4) includes a positioning notch (12) and an extension plate (13), and the extension plate (13) is fixedly connected to the edge of the positioning notch (12).

6. A blade head for an electric scissors according to claim 5, characterized in that: The static blade (1) is provided with a mounting convex strip (14), and the dynamic blade (2) is correspondingly provided with a positioning convex block (15), and the positioning convex block (15) and the mounting convex strip (14) are in abutment.

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