Heat insulated electric welding pliers

Abstract

The invention provides a pair of electric welding pliers, belonging to electric welding technical field, and solving the problems that the existing electric welding pliers are easy to scald hands, a spring is easy to damage and the like. The heat insulated electric welding pliers comprise a hand shank, a handle and a metal connecting piece arranged at the front end of the hand shank, wherein, the metal connecting piece is in transmission connection with the handle through a pin shaft; the handle and the metal connecting piece are respectively provided with an upper copper head and a lower copper head; blocking components which are made of an insulated and thermal insulation material are arranged on the metal connecting piece and the surface of the lower copper head in a surrounding manner; and the blocking component and the metal connecting piece are independent and are connected through a dismountable connecting structure. The electric welding pliers of the invention have the advantages that a baffle plate and a reset spring insulation component are adopted to insulate heat; and the clearance between the metal connecting piece and the reset spring insulation component reduces direct heat transmission area between the metal connecting piece and the reset spring insulation component, thus preventing that the reset spring is damaged by heating, and prolonging the service life of the reset spring and the electric welding pliers.

Description

technical field [0001] The invention belongs to the field of electric welding technology, and relates to an electric welding tool, in particular to a heat-insulating electric welding tongs. Background technique [0002] In the current electric welding tongs, the metal connecting piece, the lower copper head insulation cover and the lower copper head are all separate accessories, which not only has many installation procedures and is cumbersome, but also has many accessories and high assembly costs. [0003] The return spring is either arranged on the conductor, or on the lower copper head, or on the metal connector; therefore, the existing return spring not only carries electricity but also conducts heat. When the welding pliers are working, the temperature of the return spring will be very high, and annealing will easily occur, which will damage the elasticity of the return spring, and the upper copper head and the handle will not be reset in place, and eventually the upper...

AI Technical Summary

Problems solved by technology

However, when the electric welding tongs are working, the temperature of the conductor is extremely high, and the spring gasket is easily damaged by heat, so this method cannot protect the spring for a long time.

[0006] When the return spring is arranged on the conductor, the length of the conductor needs to be very long, and the depth inserted into the handle is relatively deep, so the handle will be hotter.

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