Counterweight mechanism of ocean bottom seismograph

The utility model provides a counterweight mechanism of an ocean bottom seismograph, which belongs to the technical field of ocean bottom seismic data acquisition equipment, and comprises an ocean bottom seismograph and a counterweight device, the counterweight device is arranged below the ocean bottom seismograph, and the counterweight device comprises a box body, a separation mechanism and a clamping mechanism, the separating mechanism comprises a rotating assembly, separating assemblies, a bottom plate and balancing weights, the separating assemblies are distributed on the rotating assembly in an annular array mode, the bottom plate is arranged below the separating assemblies, and each separating assembly is connected with the corresponding balancing weight through the corresponding clamping mechanism. Through the arrangement of the clamping mechanism, after the balancing weight is clamped, the ocean bottom seismograph can be prevented from falling off when sinking, and the ocean bottom seismograph can be