Syringe with integrated screw structure

The utility model discloses an integrated injector with a screw structure, which comprises an injector needle tube, a connector is fixedly arranged at the lower end of the injector needle tube, a piston is movably clamped at the lower end of the inside of the injector needle tube, a push rod is fixedly arranged at the upper end of the piston, a sleeve is sleeved on the outer side surface of the lower end of the connector, and a screw is arranged in the sleeve. An anti-loosening connecting mechanism for preventing loosening between the sleeve and the syringe needle tube is arranged between the sleeve and the syringe needle tube, the anti-loosening connecting mechanism comprises a thread, latches and a clamping piece, the thread is arranged on the surface of the outer side of the sleeve, and a plurality of latches are uniformly and fixedly arranged on the surface of the outer side of the upper end of the sleeve. The anti-loosening device is good in using effect, the sleeve can be screwed and fixed without hindr