Quick mounting and dismounting device for automatic anchor sealing gun head of ballastless track plate of high-speed railway

The utility model belongs to the technical field of track plate anchor sealing, and provides a quick mounting and dismounting device for an automatic anchor sealing gun head of a ballastless track plate of a high-speed railway, which comprises a gun nozzle, a grinding part and a spring. The gun nozzle comprises a base and a connecting column, threads are arranged at the bottom of the base, and a first protruding block is fixedly arranged on the connecting column. The grinding part is provided with a stepped hole, the stepped hole comprises a small hole section and a large hole section, the hole diameter of the large hole section is matched with the outer diameter of the first protruding block, second protruding blocks are fixedly arranged at the hole opening of the large hole section, and a gap between every two adjacent second protruding blocks forms an inserting opening matched with the corresponding first protruding block; a stop part is fixedly arranged on the inner wall of the large hole section; and the