High-strength spring

The utility model discloses a high-strength spring. The device structurally comprises a rotating shaft, a mounting hole, a fixing plate, a disc, a protection ring, a protection cover, a high-strengthspring, a mounting disc, an end cover, a clamping block and a positioning pin, the rotating shaft is embedded into the front surface of the end cover; a mounting hole is embedded in the front surfaceof the disc; the front surface of the mounting disc and the protective cover are of an integrated structure; the inner side of the protective cover is nested with the outer surface of the high-strength spring; a high-strength spring is arranged on the front surface of the mounting disc; the back surface of the end cover is bonded with the front surface of the mounting disc; the utility model discloses a high-strength spring. A high-strength spring is arranged on the structure; when pressure acts on the spring, the spring is compressed firstly, and then the pressure is transmitted to the uppercover plate, so that the up