FIELD: electricity.
SUBSTANCE: invention refers to fast connection key in electrical control and/or adjustment devices. Fast connection key with protective lock includes key 1 for fast connection of electric wires, with bottom part ending on ledge 2 and additional fixture in the form of a tab 3 connected to the base bottom 1a of key 1 in connection area 4 enabling movement of the whole additional fixture 3 closer or farther from the base 1a of the key, with return to initial state depending on presence or absence of pressure on additional fixture 3 that features a lug 5 running along external half of fixture end and oriented outwards, located on the completely smooth and flat surface and continuing till curve 3a, lug surface rests, approaches and glides on short rack 6 of device case 7 in the internal flange area 8a of its bottom part 8, the lug rests and glides when key 1 is shifted (swung) towards internal part of the case 7 when additional fixture 3 bends inside closer to the base 1a of the key 1 thus allowing the lug 5 to rest on short rack 6 and rack 6 over ledge 2 of the key 1 and to act as protective lock, or to unlock.
EFFECT: prevention of accidental disconnection of key.
5 dwg
