Violent-opening-preventing oil tank lock of motorcycle

The utility model discloses an anti-violent-opening oil tank lock of a motorcycle. Motorcycle field, including a mounting ring, an oil tank cover is rotationally connected into the mounting ring; a lock cover is rotationally connected into the oil tank cover; the lower end of the lock cover is fixedly connected with a first sealing gasket; the lower end of the mounting ring is fixedly connected with a second sealing gasket; the mounting ring is uniformly and rotationally connected with bolts through threads; annular grooves are formed in the lower ends of the bolts; the lower end of the mounting ring is fixedly connected with an annular piece, the annular piece is rotationally connected with a threaded pin through threads, one end of the threaded pin is sleeved with a sealing ring and clamped with the threaded pin through an annular groove, the bolt is prevented from rotating from the upper end of the mounting ring and being taken out when the threaded pin is not taken down, and therefore a thief is prevented