Follow-up clamping and loading device utilizing deep sea pressure energy and using method thereof

The invention relates to the technical field of underwater pipeline connector sealing performance testing, in particular to a follow-up clamping and loading device utilizing deep sea pressure energy and a using method of the follow-up clamping and loading device. The underwater pipeline connector clamping device comprises an air bag, a clamping mechanism and a load applying mechanism, the clamping mechanism and the load applying mechanism are connected with the air bag through a clamping mechanism air supply pipeline and a load applying mechanism air supply pipeline respectively, an air source is provided by the air bag, and clamping mechanism clamping plates are arranged at the upper end and the lower end of an underwater pipeline connector and used for clamping the underwater pipeline connector. The loading mechanism is arranged at the upper and lower ends of the clamping plate of the clamping mechanism and is used for applying ballast to the upper and lower ends of the underwater pipeline connector. Accord