Portable pressure monitoring device for gas pipeline

The utility model relates to the technical field of gas pipeline pressure monitoring, in particular to a portable pressure monitoring device for a gas pipeline, which comprises a lower shell, a threaded hole is arranged on the bottom surface of the lower shell, a clamping plate is fixedly connected onto the end surface of the lower shell, and a pressure detector is arranged in the lower shell. A pressure detector, a gas inlet pipe, a connector, a first flange, a second flange, a T-shaped pipe, a limiting ring, a piston, a spring and the like are arranged on the portable pressure monitoring device for the gas pipeline, when the portable pressure monitoring device is used, the connector is firstly connected with the gas pipeline needing to be detected, then a control switch is turned on, and if the pressure in the pipeline is too large, the pressure in the pipeline is detected. The pressure detector can send out an instruction to the buzzer to give out a sound prompt, meanwhile, pressure in the pipeline pushes