At present, the traditional wire cutting pliers, commonly known as "locking pliers", are made of lever principle, which is not only large in size and inconvenient to carry, but also heavy in weight and laborious in operation.

The purpose of the utility model is to provide a mechanical wire breaking pliers, which is skillfully designed by applying the principle of combining lever, CAM and variable speed, achieving the purpose of light weight, small volume and very labor-saving operation.

The purpose of the utility model is such a kind of mechanical bolt cutters, by cutting head, pressure plate, round shaft, handle, upper and lower splints, is placed between the upper and lower splint fixed shaft, pin, joystick shaft, left, right shaft pin, lock wrench, the lower end of static cutting head is connected to the fixed shaft, static with the top of the handle and the handle pin connection; Is characterized by fan gear plate of one shaft connected with the lower end of the move tool bit is set on, rotor slot under lower plate arc plate, fan tooth plate equipped with the same slot plate groove, a fixed axis in which the left end of fan gear plate set a cylindrical pin on the back, and the lower plate between the fixed pin on a tension spring, with the top of the handle is equipped with eccentric shaft plate, and connected to the handle shaft, roller bearing under eccentric shaft plate on its external has promote tooth plate, promote tooth plate on the right side of a small tension spring, with the door tooth plate along the gear wheels, under the right shaft pin on a torsional spring, make the brace on the coaxial block clockwise stuck door tooth plate.

The utility model has novel design, beautiful shape, time-saving and labor-saving, and is convenient to carry.