Portable pressure calibration device

The utility model relates to the field of pressure calibration, in particular to a portable pressure calibration device which comprises an installation support, a sliding limiting piece, a sliding piece, a lifting piece, a pressing piece, a fixing plate, a supporting plate, a rotating handle, a locking rotary knob, a threaded rod, a sliding rod, a sliding blocking piece and a pressure sensor. The side surface of the mounting bracket is connected with the sliding limiting piece; one end of the sliding limiting piece away from the mounting bracket is slidably connected with the sliding piece; the side surface of the sliding part is connected with that of the lifting part; multiple groups of connecting joints are arranged on the side surface of the lifting piece; the ends, away from the lifting piece, of the multiple connectors are connected with the pressing piece. According to the device, the accuracy of pressure detection calibration can be effectively improved, the adjusting efficiency and accuracy of the de