HYDRAULIC CLOSING SENSOR Russian patent published in 2022 - IPC H01H35/24 

FIELD: instrumentation.

SUBSTANCE: invention relates to the field of instrumentation, namely to inertial sensors of threshold action, and is designed to close the actuating contacts after the effective acceleration that occurred when encountering an obstacle falls to a value below the threshold. The hydraulic closing sensor contains a sealed housing, an inertial body, a return spring, a check valve, bellows, movable and fixed contacts. The closure occurs due to the linear expansion of the bellows after the termination of the effect of linear acceleration along the sensitivity axis of the sensor under the action of the return spring of the inertial body.

EFFECT: providing a hydraulic safety device with a thermal compensation function.

1 cl, 2 dwg