Fixator for measuring morphological parameters of Chinese softshell turtles

The invention discloses a fixator for measuring morphological parameters of Chinese softshell turtles, and particularly belongs to the technical field of morphological parameter measurement of Chinese softshell turtles, and the fixator comprises a bottom fixing plate, a head fixing plate, a side positioning frame and a back fixing device; the head fixing plate is fixed on the bottom fixing plate and is provided with a notch for the head of the Chinese softshell turtle to pass through; the back fixing device comprises a main fixing mechanism, an auxiliary fixing mechanism, a fixing frame and a triangular transmission block; the main fixing mechanism comprises a main positioning supporting leg, a first connecting piece and a first sliding rail rod, the first sliding rail rod is fixed to the fixing frame, and the main positioning supporting leg is connected with the first sliding rail rod in a sliding mode; the number of the auxiliary fixing mechanisms is two, the two auxiliary fixing mechanisms are the same in