Anti-drop fast connector

The invention relates to an anti-drop fast connector. The anti-drop fast connector comprises a male plug and a female plug, wherein external threads are formed in the male plug, and internal threads are formed in the female plug; the male plug is divided into a fixed component and a movable component, a plurality of grooves are formed in the fixed component in the axial direction, and the movable component is arranged in the grooves; the external threads comprise fixed threads and movable threads, wherein the fixed threads are positioned in the fixed component, the movable threads are positioned in the movable component, and springs are arranged at the bottom of the movable component. Through the adoption of the structure of the anti-drop fast connector disclosed by the invention, the movable threads and the fixed threads are combined, the drop of the threads can be effectively avoided, the fixed threads and the movable threads are aligned and screwed during use, and after screwing in, the fixed threads and the movable threads are staggered, so that the purpose is achieved.