Bolt cutters

Abstract

The invention discloses a pair of bolt clippers. The bolt clippers comprise two clamping plates. Two cutting heads are arranged between the two clamping plates. The two cutting heads are hinged to the two clamping plates correspondingly. The front portions of the two cutting heads are provided with cutting edges. Clipper handles are hinged to the rear ends of the two cutting heads correspondingly. A cylindrical pin is further arranged between the two clamping plates and located behind the two cutting edges and located between the two cutting heads. The two ends of the cylindrical pin are connected to the two clamping plates correspondingly. The two cutting heads are provided with grooves matched with the outer sidewall of the cylindrical pin. Holes which are formed in the clamping plates or the cutting heads to allow first pin shafts to penetrate through are circular-arc-shaped holes. The cylindrical pin serves as the center of the circular-arc-shaped holes. Compared with traditional bolt clippers, the bolt clippers provided by the invention have longer power arms and shorter resisting arms, and are higher in lever ratio. Thus, on the condition of the same lever ratio of clipper handles, the bolt clippers provided by the invention can save more effort than the traditional bolt clippers.

Description

technical field [0001] The invention belongs to the technical field of hardware tools, in particular to a bolt cutter. Background technique [0002] Bolt cutters are usually used to cut metal wires with small diameters. Traditional bolt cutters include two opposite splints, and two opposite cutter heads are arranged between the two splints. The first pin shaft is hinged with the two splints, the opposite sides of the front parts of the two cutter heads are respectively symmetrical blades, the rear ends of the two cutter heads are respectively hinged with pincer handles through a second pin shaft, and the front ends of the two pincer handles are provided with oppositely extending The two arms partially overlap and the overlapping parts are hinged together through a third pin shaft. When in use, the two pliers handles are manually opened. At this time, the two pliers handles rotate around the third pin shaft, and the rotation of the pliers handles drives The second pin shaft ...

AI Technical Summary

Problems solved by technology

[0003] The cutter head of a traditional bolt cutter can be regarded as a lever with the first pin as the fulcrum, and the pliers handle can be regarded as a lever with the third pin as the fulcrum. Through the combination of the two levers, a secondary lever is formed. , which greatly enlarges the overall leverage ratio, although the current structure of the two-stage lever has greatly increased the shearing force between the two blades and reduced the force required to be applied to the two pliers handles for cutting metal wires , but the current bolt cutters still need to exert a lot of force on the pliers handle during use, and it is difficult for a single person to operate continuously for a long time

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