DEVICE OF MECHANICAL INTERLOCKING OF THREE AUTOMATIC SWITCHES WITH ELECTRIC DRIVE Russian patent published in 2011 - IPC H01H9/24 

FIELD: electricity.

SUBSTANCE: invention can be used for electric circuit control in backup power supply input systems, namely for interlocking of three automatic switches that operate in switch on - switch off automatic mode. Device of mechanical interlocking of three automatic switches with electric drive consists of interlocking mechanisms (1, 2, 3) each of which is equipped with control element performed in a form of actuating pin (4) hinged at the retainer (5) and matching device (6) that includes two pairs of yoke plates (7, 8 and 9, 10). Yoke (7) plate is installed at the axis (11), yoke (8 and 9) plate is installed at the axis (12), yoke (10) plate is installed at the axis (13). At the yoke (7) pivot axis (11) there hinged is double-arm lever (14). At the yoke (13) pivot axis (10) there hinged is double-arm lever (15). The lower levers of the yoke plates (7 and 8) are connected between themselves by joint-hinge (16). The lower levers of the yoke plates (9 and 10) are connected between themselves by joint-hinge (17). The upper levers of the yoke plates (8 and 10) and double-arm lever (14) are hinged to actuating pin (4). The upper levers of the yoke plates (7, 9) and double-arm lever (15) are equipped with support (18) that interacts with actuating pin (4).

EFFECT: possibility to interlock in backup power supply input systems of three automatic switches that work in switch on - switch off automatic mode from electric drive.

2 cl, 5 dwg