Double-base flow capsule type accumulator

The utility model discloses a double-base flow capsule type accumulator, which overcomes the defects that existing similar products are low in bearing pressure and are easy to leak after being impacted by pulse. The double-base flow capsule type accumulator comprises a shell, an air valve and a hydraulic valve, wherein the air valve and the hydraulic valve are respectively arranged on the two ends of the shell, an elastic capsule is arranged in an inner cavity of the shell, an opening is arranged on one end of the elastic capsule, the opening end of the elastic capsule is connected with an air valve base in a closed mode, and a seal ring is embedded on the outer peripheral wall of the air valve connected with a shell base material. A valve port and a valve rod are arranged in the inner cavity of the hydraulic valve, a seal ring which is arranged on one end of the valve rod, the end of the valve rod is arranged in the inner cavity of the shell, and a spring is arranged on the valve rod. The outer peripheral wall of the hydraulic valve connected with the shell base material is respectively fixed on the inner side and the outer side of the shell through an inner pressure ring and an outer pressure ring, and a seal piece is embedded between the inner pressure ring and the outer pressure ring. The double-base flow capsule type accumulator greatly increases sealing performance by adopting two sealing technology, is suitable for two kinds of matrix liquid such as water and petroleum base hydraulic oil and the like, and greatly enlarges application fields of accumulator products.