This utility model provides an
early warning system for the operating mechanism of a high-
voltage circuit breaker, including a base, and a left side plate and a right side plate arranged parallel to each other on the top of the base. A first rotating shaft, a second rotating shaft, and a rotating column are provided between the left side plate and the right side plate. A first gear is provided on the first rotating shaft, and a second gear meshing with the first gear is provided on the second rotating shaft. A
crank arm is provided at one end of the second rotating shaft, and a disc spring is connected to the
crank arm. The other end of the disc spring is connected to the rotating column. A movable hinge is provided on the rotating column, and a telescopic rod is movably connected to the movable hinge. A movable part is provided at the front end of the telescopic rod, and a
piston is movably connected to the movable part. A cylinder is provided inside the left side plate, and the
piston is located inside the cylinder. A
pipe is provided above the cylinder, and a
detector for detecting the air pressure inside the cylinder is provided above the
pipe. When the air pressure inside the cylinder changes, the
detector monitors and transmits data in real time through the
pipe. The
system responds quickly, activates the
protection mechanism, and achieves the early warning effect.