Combined spring seal

The utility model discloses a combined spring seal. The combined spring seal comprises a check ring, a V-shaped ring, a first U-shaped spring seal, a second U-shaped spring seal and a T-shaped ring which are arranged from bottom to top in sequence. A V-shaped ring slot is formed in the top surface of the check ring, the bottom of the V-shaped ring butts against the V-shaped ring slot, and an O-shaped ring slot is formed in the top surface of the V-shaped ring; a first O-shaped convex ring and a first U-shaped ring slot are formed in the bottom and the top of the first U-shaped spring seal respectively, and the first O-shaped convex ring butts against the O-shaped ring slot; a second O-shaped convex ring and a second U-shaped ring slot are formed in the bottom and the top of the second U-shaped spring seal respectively, the second O-shaped convex ring butts against the first U-shaped ring slot, and the bottom of the T-shaped ring butts against the second U-shaped ring slot. The combined spring seal can bear the high pressure environment, can ensures such seal combinations can resist high temperature and low temperature, has a good corrosion resistance to hydrogen sulfide, and can be widely applied to sealing of valves in the petrochemical engineering field.