Novel structure for restraining linear motion of movable blade of electric clipper

Abstract

The utility model discloses a novel structure for restraining linear motion of a movable blade of an electric clipper, which comprises an electric clipper body, a fixed blade is fixed at the front end of the electric clipper body, a power device is arranged in the electric clipper body, the front end of the electric clipper body is provided with the movable blade in relative linear motion along the fixed blade through a double-end torsion spring, and the movable blade is connected with the power device. The power device is in transmission connection to the movable blade through an eccentric transmission mechanism; the double-end torsion spring comprises a cross rod part in the middle section, vertical rod parts are symmetrically bent at the two ends of the cross rod part, spiral spring elastic parts are bent at the tail ends of the vertical rod parts, spring mounting columns are symmetrically arranged on the two sides of the electric clipper body, and the spiral spring elastic parts are mounted on the spring mounting columns in a sleeving mode. A cross rod part of the double-end torsion spring is pressed on the movable blade by virtue of elastic force, and two tail ends of the double-end torsion spring are propped against the electric clipper body; the utility model has the advantages that the transverse rod part and the guide groove ensure that the movable blade moves along a straight line, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to a component of an electric push shear, and more particularly to a novel structure for constraining the linear motion of the moving blade of the electric push shear. Background Technology

[0002] Currently, the movement of the fixed and moving blades in electric push shears is essentially in two forms: linear and circular motion. However, circular motion makes it difficult to constrain the tooth tip distance between the fixed and moving blades. In some cases, the moving blade tooth surface even exceeds the fixed blade tooth surface in actual production, causing skin abrasions during use, posing a certain safety hazard and affecting product quality. In addition, the existing linear motion method uses the moving blade plastic block and the groove of the fixed blade for constraint, which is a costly structure. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a novel structure for constraining the linear motion of an electric push shear blade, addressing the shortcomings of existing technologies.

[0004] To achieve the above objectives, the present invention adopts the following measures:

[0005] A novel structure for constraining the linear motion of a moving blade in an electric push shear includes an electric push shear body, a fixed blade fixed at the front end of the electric push shear body, and a power unit inside the electric push shear body. The moving blade, which moves linearly relative to the fixed blade, is mounted at the front end of the electric push shear body via a double-headed torsion spring, and the power unit is connected to the moving blade via an eccentric transmission mechanism.

[0006] The double-headed torsion spring includes a horizontal bar section in the middle, with vertical bars symmetrically bent at both ends of the horizontal bar section. The ends of the vertical bars are bent into a helical spring elastic part. The electric push shear body is provided with spring mounting posts symmetrically on both sides. The helical spring elastic part is sleeved and mounted on the spring mounting posts. The horizontal bar section of the double-headed torsion spring presses against the moving blade by elastic force, and the two ends of the double-headed torsion spring press against the electric push shear body.

[0007] The moving blade is provided with a plastic moving blade support, and a guide groove is provided on the plastic moving blade support along the direction of the crossbar, and the crossbar is inserted into the guide groove;

[0008] The electric push shear body has two symmetrically arranged spring mounting slots, and the two ends of the double-headed torsion springs are respectively installed in the two spring mounting slots.

[0009] The beneficial effects of this utility model are: practicality, novel structure, double-headed torsion spring ensures sufficient force when the fixed blade and the moving blade are together, crossbar and guide groove ensure the moving blade moves in a straight line, fixed blade and moving blade only need to be stamped, no need to groove separately, improve production efficiency, reduce production cost, and the torsion spring limits firmly to avoid left and right swaying. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the external structure of this utility model.

[0011] Figure 2 This utility model Figure 1 A magnified schematic diagram of its front end in this state.

[0012] Figure 3 This is an exploded structural diagram of the present invention.

[0013] Figure 4 This utility model Figure 3 A magnified schematic diagram of its front end in this state.

[0014] Figure 5 This is an exploded view of the back of this utility model.

[0015] Figure 6 This is a partial structural diagram of the back of the present invention. Detailed Implementation

[0016] A novel structure for constraining the linear motion of an electric push shear blade includes an electric push shear body 1, a fixed blade 2 fixed at the front end of the electric push shear body 1, and a power unit inside the electric push shear body 1. The front end of the electric push shear body 1 is equipped with a moving blade 4 that moves linearly relative to the fixed blade 2 via a double-headed torsion spring 3. The power unit is connected to the moving blade 4 via an eccentric transmission mechanism.

[0017] like Figure 1-4 As shown, the electric clipper of this utility model has the same transmission structure and fixed blade 2 installation as the electric clipper in the prior art. The improvement of this application is that a double-headed torsion spring 3 is added. The double-headed torsion spring 3 limits the moving blade 4 and moves it in a straight line relative to the fixed blade 2 to achieve hair trimming.

[0018] The elastic force of the double-headed torsion spring 3 presses the moving blade 4 tightly against the fixed blade 2, causing it to move linearly along the fixed blade 2. The power unit drives the moving blade 4 to reciprocate linearly along the fixed blade 2.

[0019] In this design, the crossbar 301 of the double-headed torsion spring 3 falls into the guide groove 501 of the plastic moving blade holder 5 of the moving blade 4, causing the moving blade 4 to move linearly along the crossbar 301 without deviating. The moving blade 4 can be fixed to the plastic moving blade holder 5 by screws or by adhesive.

[0020] The double-headed torsion spring 3 includes a horizontal bar section 301 in the middle. Vertical bars 302 are symmetrically bent at both ends of the horizontal bar section 301. A helical spring elastic part 303 is bent at the end of each vertical bar section 302. Spring mounting posts 101 are symmetrically arranged on both sides of the electric shear body 1. The helical spring elastic part 303 is sleeved and mounted on the spring mounting posts 101. The horizontal bar section 301 of the double-headed torsion spring 3 presses against the moving blade 4 by its elastic force. The two outermost ends 304 of the double-headed torsion spring 3 press against the electric shear body 1. The outermost ends 304 of the double-headed torsion spring 3 are bent into a U-shaped structure.

[0021] The moving blade 4 is provided with a plastic moving blade support 5. The plastic moving blade support 5 is provided with a guide groove 501 along the direction of the crossbar portion 301, and the crossbar portion 301 falls into the guide groove 501.

[0022] The electric shear body 1 has two symmetrically arranged spring mounting slots 109. The two ends 304 of the double-headed torsion spring 3 are respectively installed into the two spring mounting slots 109. During installation, the two ends 304 of the double-headed torsion spring 3 are first inserted into the spring mounting slots 109, and the double-headed torsion spring 3 is firmly limited and fixed to prevent left and right swaying. Then, the crossbar part 301 of the double-headed torsion spring 3 is driven to one side. After the plastic moving blade bracket 5 with the moving blade 4 and the fixed blade 2 are installed, the double-headed torsion spring 3 is released, and the crossbar part 301 of the double-headed torsion spring 3 can be pressed into the guide groove 501 of the plastic moving blade bracket 5 of the moving blade 4. The fixed blade 2 is fixed to the blade holder of the electric shear body 1 by screws. The double-headed torsion spring 3 is installed through the cooperation of the spring mounting post 101, the elastic part of the helical spring 303 and the two ends 304. This optimized spring mounting structure further reduces production costs and improves assembly efficiency.

[0023] The original linear motion method mainly relied on the mutual restraint between the grooving of the fixed blade and the plastic fixing block of the moving blade. However, the grooving of the fixed blade was costly, or the fixed blade required a metal bracket for fixing, which was also costly and resulted in low production efficiency. The improved solution uses a double-headed torsion spring 3, and ensures that the movement trajectory of the moving blade 4 falls on the crossbar 301 of the double-headed torsion spring 3, guaranteeing linear motion. The moving blade 4 and the fixed blade 2 can be formed by stamping, eliminating the need for grooving, thus improving production efficiency and reducing production costs.

Claims

1. A novel structure for constraining the linear motion of an electric push shear blade, comprising an electric push shear body (1), a fixed blade (2) fixed at the front end of the electric push shear body (1), and a power device provided inside the electric push shear body (1), characterized in that: The electric push shear body (1) has a moving blade (4) that moves relatively linearly along the fixed blade (2) at the front end via a double-headed torsion spring (3), and the power unit is connected to the moving blade (4) via an eccentric transmission mechanism.

2. The novel structure for constraining the linear motion of an electric push shear blade according to claim 1, characterized in that: The double-headed torsion spring (3) includes a horizontal bar section (301) in the middle section. The two ends of the horizontal bar section (301) are symmetrically bent to form vertical bar sections (302). The ends of the vertical bar sections (302) are bent to form a spiral spring elastic section (303). The electric push shear body (1) is symmetrically provided with spring mounting posts (101) on both sides. The spiral spring elastic section (303) is sleeved and installed on the spring mounting post (101). The horizontal bar section (301) of the double-headed torsion spring (3) presses against the moving blade (4) by the elastic force. The two ends (304) of the double-headed torsion spring (3) press against the electric push shear body (1).

3. The novel structure for constraining the linear motion of an electric push shear blade according to claim 2, characterized in that: The moving blade (4) is provided with a plastic moving blade support (5), and a guide groove (501) is provided on the plastic moving blade support (5) along the direction of the crossbar (301), and the crossbar (301) falls into the guide groove (501).

4. A novel structure for constraining the linear motion of an electric push shear blade according to claim 2, characterized in that: The electric push shear body (1) has two symmetrical spring mounting slots (109) on it, and the two ends (304) of the double-headed torsion spring (3) are respectively installed in the two spring mounting slots (109).

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