GAS HOLDER INCLUDING MOVING POST

摘要

PURPOSE: A gas holder with a moving post is provided to stably store gas and to prevent damage to a seal rubber by maintaining horizontality when a piston deck ascends. CONSTITUTION: A gas holder comprises a body(10), an inner post(14), a piston deck(20), a seal rubber(22), a moving post(30), and an outer post(40). The body has an internal space for storing gas. An extension port is formed on top of the body. The inner post is fixed on the center of the internal space in an erected state. A moving port which is penetrated by the inner post is formed in the center of the piston deck. The piston deck ascends along the inner post according to change in gas pressure. One end of the seal rubber is fixed in the body and the other end thereof is connected to the piston deck. The seal rubber partitions the internal space with the piston deck. The opened bottom of the moving post is connected to the moving port to ascend with the piston deck. The closed top of the moving post is positioned inside the extension port. The moving post is arranged to cover the inner post. The opened bottom of the outer post is connected to the extension port to be erectly fixed. The top of the outer post is closed.