Syringe with anti-falling needle head

The utility model discloses a syringe with an anti-falling needle head, and relates to the technical field of medical instruments. The injector comprises an injector body, a needle head part and an anti-falling part, the lower end of the needle head part is connected with the upper end of the injector body, and the anti-falling part is arranged on the upper surface of the injector body. Medicine injection is achieved through mutual matching of the injector body and the needle head portion, meanwhile, the anti-falling component is used for enhancing the fixing function of connection of the needle head portion and the injector body, stability of the needle head portion in the using process is guaranteed, and the phenomenon that the needle head portion is prone to falling off when exhausting is conducted on a needle tube and injection is conducted on a patient is avoided. And due to the internal pressure effect of the injector, the needle head falls off, medicine waste and injury to a patient are caused, and the