On/off switch with contacts for electrical circuits and appliances

摘要

A switch with contacts includes a housing formed by snap-fit connection of an upper cover and a base, an operating lever and a movable contact holder, the operating lever and the moveable contact holder being movably-fit to one other. A stop device with a lock mechanism is provided in the housing, the lock mechanism being disposed between the stop device and the movable contact holder. An unlock mechanism is arranged between the stop device and the operating lever. The movable contact holder has positions at each of its two ends with the movable contact holder located in the positions of the two ends. The stop device and the movable contact holder are locked and stopped by the unlock mechanism.

主权项

1. A switch with contacts, comprising:
a housing, an operating lever and a movable contact holder, said operating lever and said movable contact holder being movably-fit to one another; a stop device disposed in the housing including a stop member, an unlock member, a reset member, and a positioning member connected with a limit member on the housing; a lock mechanism disposed between the stop device and the movable contact holder wherein said lock mechanism is composed of the stop member and a position-locking member provided on the movable contact holder, said stop member and said position-locking member being configured to cooperate with one another, wherein a first end of the reset member presses against the housing to form a resetting force that urges the stop member advance toward the position-locking member on the movable contact holder and wherein the positioning member is a lever and said position-locking member is a notch, wherein said positioning member is configured to turn inside the position-locking member; wherein the lock mechanism is configured to lock and stop said stop device and movable contact holder, an unlock mechanism arranged between the stop device and the operating lever; wherein an unlock point is positioned in a stroke of the operating lever, wherein a position of said unlock point is adjustable in said stroke of the operating lever, wherein said unlock mechanism is configured to unlock said lock mechanism when the operating lever reaches the unlock point, and wherein said unlock mechanism further comprises a pressing element disposed on the operating lever configured to press against the unlock member, and further configured to overcome the resetting force from the reset member and to urge separation of the stop member from the position-locking member on the movable contact holder, whereby the unlock mechanism is formed by unlocking said lock mechanism; and an elastic element configured to drive the movable contact holder, such that after the lock mechanism is released, the operating lever is movable inside the housing.