Bidirectional sealing automatic partition device

The utility model belongs to the technical field of valves, and particularly relates to a bidirectional sealing automatic partition device. Comprising a valve body, retainers are welded to the two ends of the valve body and connected through a guide rod, the guide rod is connected with a valve plate in a penetrating mode, springs are arranged on the two sides of the valve plate and connected to the guide rod in a sleeved mode, and a sealing block is arranged in the valve body. According to the utility model, the pressure on the two sides can be automatically balanced when the pressure difference of media on the two sides exceeds a set value through different pressures on the two sides, so that the container is prevented from overpressure deformation, and meanwhile, the media on the two sides are effectively separated when the operation is stopped. When the pressure on the two sides of the container exceeds the set upper limit of the container, air is automatically sucked/exhausted to ensure that the container