Container energy storage system fire extinguishing device with nozzle convenient to replace

The utility model discloses a container energy storage system fire extinguishing device convenient to replace a nozzle, which comprises a nozzle main body and a cushion cover, a circular bulge is fixedly connected to the nozzle main body, the upper side of the circular bulge is in contact with a limiting nut, a fixed sleeve is sleeved on the limiting nut, a protective sleeve is arranged on the outer side of the fixed sleeve, and the fixed sleeve is fixedly connected with one protective sleeve. The two sides of the protective sleeve are fixedly connected with first protrusions, the two corresponding first protrusions are fixedly connected through a screw rod, the protective sleeve is rotationally connected with the circular protrusions, the inner side of the fixing sleeve is attached to the limiting nut, and the two sides of the upper end of the protective sleeve are fixedly connected with connecting bases. The fixing sleeve can be driven to rotate by utilizing the first bulge, so that the limiting nut can con