Pressure container

The invention relates to the technical field of pressure vessels, and particularly discloses a pressure vessel which comprises a vessel tank body, a capacity expansion anti-explosion assembly is arranged in the middle of the vessel tank body, and a hand lifting block is fixedly mounted at the top end of the vessel tank body. Capacity expansion can be conducted on the vessel through the capacity expansion anti-explosion assembly, and the storage capacity of the vessel is increased; and when the internal pressure intensity of the pressure container is increased due to environment change, an alarm can be given in time to remind a worker to carry out maintenance, alarm monitoring can be carried out on the original space and the expanded space through twice alarms, gas leakage caused by valve looseness during carrying can be prevented through a limiting assembly, and the safety of carrying is improved. And when the pressure container is moved through the moving assembly, the moving ball can make contact with the g