Reagent board card clamping mechanism

The utility model discloses a reagent board card clamping mechanism which is characterized in that a support frame is arranged on a mounting seat, a positioning sleeve is arranged on the support frame, a linkage rod is arranged in the positioning sleeve, a driving motor is arranged on one side surface of the support frame, a driving dial is arranged at the output end of the driving motor, and a grooved wheel is arranged at one end, close to the driving motor, of the linkage rod; a plurality of radial grooves are formed in the outer side face of the grooved wheel in the circumferential direction, outer concave locking arcs are arranged on the outer side face of the driving shifting disc, inner concave locking arcs are arranged on the outer side face of the grooved wheel and located between the adjacent radial grooves, and shifting rods are arranged on the side face, close to the supporting frame, of the driving shifting disc and located in the outer concave locking arcs. A rotating disc is arranged at the end,