Adjustable natural gas flowmeter testing device

The utility model discloses an adjustable natural gas flowmeter testing device, relates to flowmeter leakproofness testing technical field, the device includes bottom plate, adjusting installation mechanism and testing mechanism, the four corners of bottom plate upper end are all vertically equipped with the support pillar, the upper end of support pillar is horizontally equipped with the top plate, the top plate is equipped with the top plate, the top plate is equipped with the bottom plate, and the bottom plate is equipped with the adjusting installation mechanism and the testing mechanism. A supporting plate is vertically installed at the lower end of the top plate, a second chuck is installed on the side wall, close to the center of the top plate, of the supporting plate, a penetrating hole is formed in the center of the second chuck, and the diameter of the penetrating hole is smaller than that of a natural gas flowmeter channel pipe. Flanges at the two ends of natural gas flow meters with different diam