Gas well opening casing pressure burglar alarm

The utility model provides a gas well opening casing pressure burglar alarm and relates to an anti-theft petroleum machinery device for gas well casing pressure. The gas well opening casing pressure burglar alarm consists of a burglar alarm body, a plunger body, a guide rod, a support plate and a plug. The burglar alarm body is welded on a gas well opening flange, the plunger body (multiple holes are evenly distributed at the edge position of the innermost end of the plunger body) and the burglar alarm body are connected inside the burglar alarm body in a gap match mode, the guide rod and the plunger body are installed on the burglar alarm body through threads, the support plate is in threaded connection with the burglar alarm body, the guide rod is connected with the support plate (multiple holes are evenly distributed on the support plate) in the gap match mode, and the plug is connected with the burglar alarm body through threads. By adopting the gas well opening casing pressure burglar alarm, non-workers