Patent ID: 9021886
Filing Date: 2015-05-05
Classification: G01L

Abstract:
1. A pressure gauge comprises a pedestal, a C-shaped spring tube set on the pedestal, a needle pivot rotatably mounted on the pedestal, a needle fixedly connected to the needle pivot and a indicating panel, the spring tube is connected to the needle pivot and able to drive the needle pivot to rotate, wherein, a fixing portion is provided on one end of the spring tube, the fixing portion is bending to the center of the pedestal and communicated to the spring tube; the pedestal is provided with a convex mounting portion set on the face adjacent to the spring tube, and the mounting portion is provided with an open slot matched with the fixing portion; the fixing portion is installed in the open slot; a first through-hole for gas flowing is provided on the bottom of the open slot, and the first through-hole is communicated to the fixing portion.