Air-pressure-type switch triggering device

The invention discloses an air-pressure-type switch triggering device which comprises a cylinder, a piston body, a connecting rod and a conductive contact. The piston body is located in the cylinder and connected with the inner wall of the cylinder in a sliding mode, the piston rod divides the cylinder into a high-pressure side and a low-pressure side, the side face, located on the low-pressure side of the cylinder, of the piston body is connected with one end of the connecting rod, a reset spring wraps the connecting rod, one end of the reset spring is connected with the inner wall of the cylinder, the cylinder is additionally provided with an air exhaust valve, a positioning pin and an air inlet, and the air inlet is located at the high-pressure side of the cylinder and is connected with a high-pressure air pump through an air pipe. High-pressure gas and the spring serve as drive force for driving a high-pressure switch contact to be opened and closed, use of an electromagnetic coil is effectively avoided,