Load safety switch

The utility model relates to a load safety switch which belongs to the class of electric appliance switches. The utility model takes a switch composed of a porcelain seat, an upper and a lower closing covers, a fixed bolt and three upper, three middle and three lower lug plates fixed on the porcelai...

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Bibliographic Details
Main Authors YU YONGXUE, YU XIANGHUI, SUN ZHANCHEN
Format Patent
LanguageEnglish
Published 02.04.1997
Edition6
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Summary:The utility model relates to a load safety switch which belongs to the class of electric appliance switches. The utility model takes a switch composed of a porcelain seat, an upper and a lower closing covers, a fixed bolt and three upper, three middle and three lower lug plates fixed on the porcelain seat as the basis, wherein, concave static contacts are arranged on the six middle and lower lug plates, and a pilot hole is arranged on the upper closing cover; the inner of the hole is inserted with a push-and-pull body, wherein, the upper end surface of which is fixed with a lifting press-button, and the push-and-pull body is provided with two guide posts which are sheathed with bouncing frames which are separately provided with three holes; the inner of each hole is provided with a pressure spring, a connecting plate and a movable contact with two concave ends, and excitation springs are separately installed between both sides of the two guide posts of the push-and-pull body and the hole walls of the bouncing frames. The switch can instantly close and cut off circuits.
Bibliography:Application Number: CN1995223016U