Pressure vessel sealing head with pressure balancing function

The utility model provides a pressure vessel end socket with a pressure balancing function, which relates to the technical field of pressure vessel end sockets and comprises a cover plate, a main body of the cover plate is of a circular structure, a through hole is formed in the center of the inside of the cover plate, and the through hole formed in the cover plate is used for mounting a pressure relief pipe. The problems that an existing pressure container cannot achieve good sealing and automatic pressure relief operation under the condition that electric power is insufficient or no electric power is supplied, and then limitation exists are solved. In a normal state, a sliding block magnetically adsorbed in a guide rail can drive a bearing seat and a counter weight installed above the bearing seat through a stud to rapidly move to the position above a shifting plate under the popping action of a spring, and the counter weight is arranged to efficiently replace traditional electric power limiting to continue