Arch sag detection device for floating type ocean platform buoy

The invention discloses a sag detection device for a floating type ocean platform buoy, and relates to the technical field of buoy sag detection devices. The device comprises a mounting cover, an air pressure sensor, a temperature sensor and a storage battery pack are mounted on the inner wall of the mounting cover, and the storage battery pack supplies power to the air pressure sensor and the temperature sensor; the bottom end of the mounting cover is fixedly connected with a magnetic sucker through a transition net; the air pressure sensor and the temperature sensor are respectively connected with the signal transmitter through data transmission cables; and water-insoluble gas is injected into the mounting cover through a gas conveying pipe. The device has the beneficial effects that after the mounting cover is adsorbed to the floating barrel through the magnetic suction cup, water-insoluble gas is injected into the mounting cover, so that a stable environment is formed in the floating barrel, the internal