Double-tube double-chamber air spring structure with variable volume damping

The invention discloses a double-tube double-chamber air spring structure with variable volume damping, the double-tube double-chamber air spring structure with variable volume damping comprises a main air chamber, a compression throttle pipe, a stretching throttle pipe, a one-way valve, an additional air chamber, a water pipe and a water storage tank, the main air chamber is composed of an upper cover plate, a rubber leather bag and a piston base; the additional air chamber is arranged outside the main air chamber; the compression throttle pipe and the stretching throttle pipe are mounted at the upper ends of the outer parts of the main air chamber and the additional air chamber in a sealing manner and are connected with the two air chambers; the one-way valve is mounted at the middle ends of pipelines of the compression throttle pipe and the stretching throttle pipe; and the water pipe is connected with the water storage tank and the sprayer in the additional air chamber. The air spring is suitable for vehi