Instrument verification joint and pressure verification platform

The invention relates to the technical field of instrument verification equipment, and discloses an instrument verification joint and a pressure verification platform, the instrument verification joint comprises a flange connection end (1) and a threaded connection end (2), the flange connection end can be connected with a flange structure of a diaphragm type pressure gauge (0), and the middle part of the flange connection end is provided with a through center hole (101); the threaded connection end is provided with a through hole (201) which penetrates in the axial direction of the threaded connection end and is communicated with the center hole, one end of the threaded connection end is connected with the flange connection end, and the other end of the threaded connection end can be connected with a threaded port of a pressure verification device. According to the invention, the problems that the connection port of the diaphragm type pressure gauge is of a flange structure, and the structure cannot be match