Rat syringe convenient for liquid adding

The utility model provides a rat syringe facilitating liquid adding. The rat injector facilitating liquid adding comprises a liquid medicine box. The bottom plate is fixedly mounted at the top of the liquid medicine box; the multiple supporting plates are fixedly installed at the top of the bottom plate, and U-shaped grooves are formed in the tops of the multiple supporting plates; the servo motor is fixedly mounted at the top of the bottom plate; the screw rod is fixedly mounted on an output shaft of the servo motor, and the screw rod is rotationally connected with one supporting plate; the limiting groove is formed in the top of the bottom plate; and the sliding plate is arranged on the screw rod in a threaded and sleeving mode, and the sliding plate is connected with the inner wall of the limiting groove in a sliding mode. The rat syringe facilitating liquid adding has the advantages that time and labor are saved, liquid adding is convenient, and liquid injection is convenient. 本实用新型提供一种便于加液的大鼠注射器。所述便于加液的大