Power-saving wire breaking and pressing method for a tool pliers

Abstract

The present application relates to the technical field of manual hardware tools, and particularly relates to a labor-saving wire breaking and pressing method of a tool clamp. The tool clamp comprises a left blade, a right blade, a left connecting arm, a right connecting arm, a left handle and a right handle. The tail of the left blade is provided with a curved clamping groove, and the tail of the right blade is provided with a spherical protrusion. The spherical protrusion is rotatably connected with the curved clamping groove to form a lock catch structure. The left connecting arm and the right connecting arm are L-shaped. The left connecting arm is connected with the right blade through a pin shaft, and the right connecting arm is connected with the left blade through a pin shaft. The lock catch structure is a two-stage lever structure, which can change the direction of force and realize twice amplification. The left connecting arm and the right connecting arm form a one-stage lever structure, which can greatly amplify the occlusal force of the blade edges of the left blade and the right blade, easily realize wire breaking and pressing operation, effectively achieve the labor-saving effect, and compactly structure. The tool clamp has a small operation radius and is easy to operate by the hands of workers, and can meet the actual use requirements of a work site.

Description

Technical Field

[0001] This invention relates to the field of manual hardware tools, and in particular to a labor-saving method for cutting and pressing wires with pliers. Background Technology

[0002] Currently, wire cutters are mainly used to cut wires or metal wires, while crimping pliers are mainly used to crimp terminals. A common problem with both is that they require a significant amount of force. Traditional designs, such as the patent application CN221047417U entitled "A Force-Saving Wire Cutter," aim to save effort by adding a telescopic tube to the handle. Adjusting the length of the telescopic tube utilizes the lever principle to achieve a force-saving effect. However, this design results in an excessively long handle. While the extended telescopic tube does provide some force saving, the excessively large operating radius makes it difficult for workers to operate, failing to meet practical needs. Currently, there is no good solution to these problems.

[0003] In summary, how to effectively solve the problem of labor-saving operation of wire cutters and crimping pliers has become a technical challenge that urgently needs to be addressed in the industry. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention provides a labor-saving method for cutting and crimping wires with pliers, solving the problems of excessively long handles, large operating radius, and difficulty in operation for workers.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: A method for cutting and crimping wires with a pair of pliers that saves effort includes a left blade, a right blade, a left connecting arm, a right connecting arm, a left handle, and a right handle. The tail of the left blade is provided with a curved groove, and the tail of the right blade is provided with a spherical protrusion. The spherical protrusion and the curved groove are rotatably fitted to form a locking structure. The left and right connecting arms are L-shaped. The left connecting arm is connected to the right blade, and the right connecting arm is connected to the left blade, respectively, by a pin. The left and right connecting arms are connected by a locking bolt and a locking nut. The tails of the left and right connecting arms are fixedly connected to the left and right handles, respectively. In use, the operator holds the left and right handles and presses them inwards. The left and right handles drive the left and right connecting arms to rotate in opposite directions around the locking bolt. The L-shaped left and right connecting arms form a primary lever structure, which initially amplifies the force applied by the left and right handles and transmits it to the left and right blades. The front parts of the left and right blades engage under the hinge action of the pin, and the locking structure at the tail of the left and right blades engages with each other to form a secondary lever structure, realizing a change in the direction of force and a secondary amplification, easily achieving wire cutting and pressing operations, and achieving a labor-saving effect.

[0006] The left and right blades are provided with pin holes in the middle, and the heads of the left and right connecting arms are provided with pin holes that match the blade positions. The two pins pass through the pin holes between the left connecting arm and the right blade, and between the right connecting arm and the left blade, respectively, and are hinged together.

[0007] The front cutting edges of the left and right blades are joined together, and a partition hole is provided between their rear ends. The overlapping parts of the left and right connecting arms are respectively provided with through holes at the positions corresponding to the partition hole. The locking bolt passes through the through hole and the partition hole and connects with the locking nut to connect the left and right connecting arms.

[0008] The depth of the curved groove is greater than half a circle.

[0009] The left and right blades have straight cutting edges and are used with wire cutters.

[0010] The left and right blades each have several semi-circular grooves of different diameters on their cutting edges for use with wire clamps.

[0011] The distance between the through holes on the left and right connecting arms and the tail is greater than the distance between the through holes and the head.

[0012] The through hole on the left connecting arm is a round hole, and the through hole on the right connecting arm is a flat hole. The locking bolt is provided with a cylindrical section and a flat section that mate with the round hole and the flat hole. The head of the flat section is a threaded section, and the threaded section is connected to the locking nut.

[0013] The present invention adopts the above-described solution and has the following beneficial effects: By providing a curved groove at the tail of the left blade and a spherical protrusion at the tail of the right blade, the spherical protrusion and the curved groove are rotated together to form a locking structure. This locking structure is a two-stage lever structure that can change the direction of force and amplify it a second time. Combined with the L-shaped left and right connecting arms to form a first-stage lever structure, the cutting edges of the left and right blades can obtain a significantly amplified biting force, easily achieving wire cutting and pressing operations, effectively saving effort. Moreover, the structure is compact, the operating radius is small, and it is easy for the operator's hands to operate, meeting the actual use needs of the work site. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the blade structure when the present invention is used as a wire cutter.

[0016] Figure 3 This is a schematic diagram of the blade structure when the present invention is used as a crimping tool.

[0017] Figure 4 This is a schematic diagram of the structure of the left connecting arm of the present invention.

[0018] Figure 5 This is a schematic diagram of the right connecting arm of the present invention.

[0019] Figure 6 This is a schematic diagram of the locking bolt of the present invention.

[0020] In the diagram, 1. Left blade, 2. Right blade, 3. Left connecting arm, 4. Right connecting arm, 5. Left handle, 6. Right handle, 7. Curved groove, 8. Spherical protrusion, 9. Partition hole, 10. Pin hole, 11. Pin shaft, 12. Locking bolt, 13. Semicircular groove, 14. Round hole, 15. Flat hole, 16. Cylindrical section, 17. Flat section, 18. Threaded section. Detailed Implementation

[0021] To clearly illustrate the technical features of this solution, the invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0022] like Figure 1 As shown, a pliers method for cutting and pressing wires with ease includes a left blade 1, a right blade 2, a left connecting arm 3, a right connecting arm 4, a left handle 5, and a right handle 6. The tail of the left blade 1 is provided with a curved groove 7, and the tail of the right blade 2 is provided with a spherical protrusion 8. The spherical protrusion 8 and the curved groove 7 are rotatably fitted together to form a locking structure. This locking structure is a two-stage lever structure that can realize the change of force direction and secondary amplification. The left connecting arm 3 and the right connecting arm 4 are L-shaped. The left connecting arm 3 is connected to the right blade 2, and the right connecting arm 4 is connected to the left blade 1 by a pin 11. The left connecting arm 3 and the right connecting arm 4 are connected by a locking bolt 12 and a locking nut. The tails of the left connecting arm 3 and the right connecting arm 4 are fixedly connected to the left handle 5 and the right handle 6, respectively.

[0023] The left blade 1 and the right blade 2 are each provided with a pin hole 10 in the middle position. The head of the left connecting arm 3 and the right connecting arm 4 are respectively provided with a pin hole 10 that matches the position of the blade. The two pin shafts 11 pass through the pin holes 10 between the left connecting arm 3 and the right blade 2, and between the right connecting arm 4 and the left blade 1, respectively, and are hinged together.

[0024] The front blades of the left blade 1 and the right blade 2 are joined together, and a partition hole 9 is provided between their rear parts. The overlapping parts of the left connecting arm 3 and the right connecting arm 4 are respectively provided with through holes corresponding to the position of the partition hole 9. The locking bolt 12 passes through the through hole and the partition hole 9 and is connected to the locking nut to connect the left connecting arm 3 and the right connecting arm 4.

[0025] The depth of the curved groove 7 is greater than half a circle, which can prevent the spherical protrusion 8 from coming outward.

[0026] like Figure 2 As shown, the blades of the left blade 1 and the right blade 2 are straight blades, used for wire cutters.

[0027] like Figure 3 As shown, the left blade 1 and the right blade 2 are respectively provided with a number of semi-circular grooves 13 of different diameters for use with wire clamps.

[0028] like Figure 4-5 As shown, the distance between the through hole and the tail of the left connecting arm 3 and the right connecting arm 4 is greater than the distance between the through hole and the head, which can form a first-level lever structure and achieve the effect of saving effort.

[0029] like Figure 6 As shown, the through hole on the left connecting arm 3 is a round hole 14, and the through hole on the right connecting arm 4 is a flat hole 15. The locking bolt 12 is provided with a cylindrical section 16 and a flat section 17 that mate with the round hole 14 and the flat hole 15. The head of the flat section 17 is a threaded section 18, which connects to the locking nut. With this design, the left connecting arm 3 and the locking bolt 12 are rotatably connected, while the right connecting arm 4 and the locking bolt 12 are restricted by the plane and cannot rotate. This design allows the locking bolt 12 to be positioned, facilitating the tightening of the locking nut.

[0030] Working principle: In use, the operator holds the left handle 5 and the right handle 6 and presses them inward. The left handle 5 and the right handle 6 drive the left connecting arm 3 and the right connecting arm 4 to rotate in opposite directions around the locking bolt 12. Since the left connecting arm 3 and the right connecting arm 4 are L-shaped, the L-shaped connecting arms form a primary lever structure, which initially amplifies the force applied by the left handle 5 and the right handle 6 and transmits it to the left blade 1 and the right blade 2. The front parts of the left blade 1 and the right blade 2 perform a biting motion under the hinge action of the pin 11. The locking structure at the tail of the left blade 1 and the right blade 2 engages with each other as the blades bite, forming a secondary lever structure. This can realize the change of force direction and secondary amplification. The primary lever structure and the secondary lever structure work together to give the cutting edges of the left blade 1 and the right blade 2 a greatly amplified biting force, easily realizing the cutting and pressing operations of the wire, and effectively achieving the labor-saving effect.

[0031] The above specific embodiments should not be construed as limiting the scope of protection of the present invention. For those skilled in the art, any alternative improvements or modifications made to the embodiments of the present invention shall fall within the scope of protection of the present invention.

[0032] Any aspects of this invention not described in detail are well-known to those skilled in the art.

Claims

1. A labor-saving method for cutting and crimping wires with pliers, characterized in that: It includes a left blade, a right blade, a left connecting arm, a right connecting arm, a left handle, and a right handle. The tail of the left blade is provided with a curved groove, and the tail of the right blade is provided with a spherical protrusion. The spherical protrusion and the curved groove are rotatably fitted to form a locking structure. The left and right connecting arms are L-shaped. The left connecting arm is connected to the right blade, and the right connecting arm is connected to the left blade, respectively, by a pin. The left and right connecting arms are connected by a locking bolt and a locking nut. The tails of the left and right connecting arms are fixedly connected to the left and right handles, respectively. In use, the operator holds the left and right handles and presses them inwards. The left and right handles drive the left and right connecting arms to rotate in opposite directions around the locking bolt. The L-shaped left and right connecting arms form a primary lever structure, which initially amplifies the force applied by the left and right handles and transmits it to the left and right blades. The front parts of the left and right blades engage under the hinge action of the pin, and the locking structure at the tail of the left and right blades engages with each other to form a secondary lever structure, realizing a change in the direction of force and a secondary amplification, easily achieving wire cutting and pressing operations, and achieving a labor-saving effect.

2. The method for cutting and crimping wires with a pair of pliers according to claim 1, characterized in that: The left and right blades are provided with pin holes in the middle, and the heads of the left and right connecting arms are provided with pin holes that match the blade positions. The two pins pass through the pin holes between the left connecting arm and the right blade, and between the right connecting arm and the left blade, respectively, and are hinged together.

3. The method for cutting and crimping wires with a pair of pliers according to claim 1, characterized in that: The front cutting edges of the left and right blades are joined together, and a partition hole is provided between their rear ends. The overlapping parts of the left and right connecting arms are respectively provided with through holes at the positions corresponding to the partition hole. The locking bolt passes through the through hole and the partition hole and connects with the locking nut to connect the left and right connecting arms.

4. The method for cutting and crimping wires with a pair of pliers according to claim 1, characterized in that: The depth of the curved groove is greater than half a circle.

5. The method for cutting and crimping wires with a pair of pliers according to claim 1, characterized in that: The left and right blades have straight cutting edges and are used with wire cutters.

6. The method for cutting and crimping wires with a pair of pliers according to claim 1, characterized in that: The left and right blades each have several semi-circular grooves of different diameters on their cutting edges for use with wire clamps.

7. A method for cutting and crimping wires with a pair of pliers according to claim 1, characterized in that: The distance between the through holes on the left and right connecting arms and the tail is greater than the distance between the through holes and the head.

8. A method for cutting and crimping wires with a pair of pliers according to claim 1, characterized in that: The through hole on the left connecting arm is a round hole, and the through hole on the right connecting arm is a flat hole. The locking bolt is provided with a cylindrical section and a flat section that mate with the round hole and the flat hole. The head of the flat section is a threaded section, and the threaded section is connected to the locking nut.

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