Novel rubber membrane gas holder

The utility model belongs to the technical field of storage tank engineering, and relates to a novel rubber membrane gas chamber, which comprises a storage tank barrel, a tank top, a piston and a rubber membrane, the piston and the rubber membrane are arranged in the storage tank barrel, the rubber membrane is connected with the storage tank barrel and the piston to seal gas at the lower part of the piston, and the gas at the lower part of the piston is sealed through vertical movement of the piston. Gas enters or flows out of the gas holder from the gas inlet/outlet; the storage tank barrel is provided with a rubber film inlet and outlet. According to the utility model, the flange type rubber membrane inlet/outlet and the internal rubber membrane conveying platform are additionally arranged on the traditional rubber membrane gas chamber, so that the rubber membrane can be replaced only by opening the flange type rubber membrane inlet/outlet and utilizing the internal rubber membrane conveying platform to con