Special self-reminding type mechanical pressure gauge for hydraulic pump station

The utility model discloses a special self-reminding type mechanical pressure gauge for a hydraulic pump station, which comprises a shell, the bottom of the shell is communicated with a connecting pipe, the bottom end face of the connecting pipe is provided with a bottom groove extending upwards, the outer side of the bottom of the connecting pipe is provided with a ring groove, the ring groove is internally sleeved with a limiting ring, and the limiting ring is provided with a through hole. A notch is reserved in the surface of the limiting ring, mounting sleeves are fixed to the two sides of the notch, a stud penetrates through the interior of each mounting sleeve, one end of each stud is attached to the end face of the corresponding mounting sleeve in a limiting mode, and the other end of each stud is sleeved with a fastening nut used for fastening and limiting; through the designed limiting ring, the mounting sleeve and the stud, when the thread on the inner wall of the connecting pipe slips and is broken