Aircraft double-pin blade bolt mechanical anti-loosening assembly

The utility model relates to a mechanical anti-loosening assembly for a double-pin blade bolt of an aircraft, belongs to the technical field of aircrafts, and solves the problem that the blade bolt is inconvenient to disassemble in the prior art. The assembly comprises a paddle clamp, a paddle bolt, a ball plunger and a paddle clamp protrusion. A first bolt hole and a second bolt hole are formed in the paddle clamp; the ball plunger comprises a shell, a spring and a steel ball, one end of the shell is closed, the other end of the shell is open, and the spring is arranged in the shell. One end of the spring is connected with the closed end of the shell, the other end is connected with the steel ball, and at least part of the steel ball is located outside the open end of the shell; blade bolts are respectively arranged in the first bolt holes and the second bolt holes; a plurality of pit structures matched with the steel balls are arranged on the periphery of one end, close to the upper surface of the paddle cl