Fuel gas buried ball valve key

The utility model discloses a fuel gas buried ball valve key which comprises a conduction rod, an opening device and a rotating device, one end of the conduction rod is connected with the opening device, and the other end of the conduction rod is connected with the rotating device. The opening device comprises a mounting block, a key head and a fastening bolt, a groove is formed in the mounting block, a fastening hole is formed in the side wall of the groove, and the fastening bolt penetrates through the fastening hole to fix the key head in the groove. The main body part of the conduction rod is composed of the telescopic rod and the universal joint, the length of the conduction rod can be adjusted according to the field environment during use, meanwhile, the universal joint can enable the conduction rod to be bent by a certain angle when a ball valve key is shielded by an obstacle, and the ball valve is opened and closed under the condition that the obstacle is not moved. And the key head is detachably conn