SWITCHING MECHANISM IN ELECTRIC DRIVE WITH MANUAL DOUBLER Russian patent published in 2017 - IPC F16K31/05 

FIELD: electricity.

SUBSTANCE: switching mechanism in an electric drive with built-in manual doubler comprises a housing, a flywheel projecting from the housing, inside the housing there is a switching lever of a first type with first and a second force application points, an output shaft, a flange of the flywheel with cams and a pusher, a spring-loaded two-way damper with cams, a spring-loaded two-way coupling with cams, a wheel with cams and a stop from electric motor transmission, an element with to effect on the coupling from transmitting lever, a spring-loaded lock with a projection. The flange, the damper, the coupling and the wheel are mounted on output shaft for rotation. The damper and the coupling are in a mutual spring-loaded tandem and are free along the output shaft axis including mutual movement. At that the coupling can move in the guides of the output shaft, so that the coupling and the damper can rotate only together with the output shaft. At that the cams of the damper are adapted on one side for the flange cams, and on the other side for the coupling cams. The coupling cams on the other side are adapted for the wheel cams. The flange cams with the damper cams and the coupling cams with the wheel coupling can engage and disengage during axial reciprocal movement, while the damper cams with the coupling cams do not leave the engagement zone during the reciprocal axial movement. An element is arranged between the coupling and the wheel without the possibility of rotation around the output shaft. The spring-loaded lock with the projection is mounted on an element for turning through 90 degrees with possibility of taking two positions-along axis of the output shaft in manual mode and perpendicular to axis of output shaft in electric mode.

EFFECT: simplification of switching algorithm, improvement of reliability and performance in manual mode, exclusively by rotation of the flywheel, without the transmitting lever with manual effect.

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