High voltage isolator sound spring leaf for contact

The utility model discloses a high voltage isolator sound spring leaf for contact, the material of spring leaf is nickel titanium base shape memory alloy, the spring leaf middle part is the arc, and both ends are free end and stiff end respectively, the stiff end of spring leaf is provided with the bolt hole. The utility model discloses a nickel titanium base shape memory alloy who has good super-elasticity, heat stability and corrosion resistance prepares out the high voltage isolator sound spring leaf for contact product, substitutes present ordinary spring steel, and the isolator who results in crossed the thermal failure problem because closing spring loses efficacy in the fundamentally solution to the urgent needs of internal electric power operation enterprise for the electricity sector saves a large amount of maintenance, manpower and material resources for maintaining use, are satisfied to the emergence of the isolator accident of generating heat that significantly reduces and large tracts of land power failure, avoid great economic loss and abominable social influence owing to transmission line has a power failure and produces simultaneously.