Multi-cylinder anti-theft cylinder lock and key thereof

The utility model belongs to safety and theftproof tool, particularly a multi-rotor theftproof ball lock and a key. The lock is composed of three rotors and a key of which the double-side gear teeth are mutually vertical. A lock body is equipped with a spring hole. Each rotor is provided with a ball hole. The interior of the spring hole is provided with a spring. Each ball hole is provided with a spring. A lock core is divided into three rotors. The directions of the key holes of two rotors fixed to the front side of the lock body with the clamping pieces of a fixing disc and a fixing rotor are the same. The direction of the key hole of the third rotor is mutually vertical to the directions of the key holes of the other two rotors. The unlocking key is formed by the connection of a handle and a rotating rod. The rotating rod is equally divided into three sections. The middle section is provided with no gear teeth. The planes of the double-side key gear teeth of the other two sections are vertical to each other. The key of the utility model has a complicated structure and others can not easily copy the complicated structure. The structure of the lock body is unique and thieves can not unlock the lock body with skeleton keys. Thus, the utility model has the advantage of very good safety performance.