The invention discloses a
projectile internal charging structure for preventing
flame-over ignition of a fuse in an explosive-proof state. The
projectile internal charging structure comprises an explosive-proof type fuse 5, a
flame isolation part 2, propellants and explosives 3 and a charging
projectile 4, wherein the explosive-proof type fuse 5 is located on the top of a projectile, the bottom end of the explosive-proof type fuse 5 is provided with a detonating tube 1, and the
flame isolation part 2 is arranged between the detonating tube 1 of the explosive-proof type fuse 5 and the chargingprojectile 4 and is in
close contact with the detonating tube 1 of the explosive-proof type fuse 5 and the charging projectile 4. The flame isolation part is used for isolating the fuse from leaked high-temperature and high-pressure gas caused by
cracking or breaking of structures like a fuse body due to accident ignition of sensitive explosion elements like a
detonator inside the fuse in the explosive-proof state, and the situation that the gas flows to the explosive loading surface of the projectile or a battle part to cause
combustion and explosion by accident is prevented. The flame isolation part is in
close contact with the detonating tube and the explosives in the projectile, and the occupied axial space is very small. By means of the projectile internal charging structure, safety of the projectile or the battle part is improved, and the structure is suitable for small-bore shells, especially small-bore anti-hail cloud-seeding shells with small-size and low-
mass fuses.