Abstract: A loss prevention structure for an adapter, that includes: a plurality of adapters, and a latch fastening seat. Wherein, each adapter has a flexible latch lock piece connected to a side of the adapter, the latch lock piece has a movable end and a latch buckle at a tail portion of the latch lock piece. The latch fastening seat is formed by two opposite indent plates, and a plurality of connection elements. A jacket hole is formed by an indent portion between the two indent plates, to hold on to a connection cable or a fixing rod. In the latch fastening seat is disposed at least a fastening portion, and the fastening portion is provided with at least a penetrating portion leading to outside.

Abstract: An anti-theft connector head structure includes at least a connector head, a latch lock piece, a fastening ring, and a protection sleeve. On a side of a main body of the connector head is disposed a first connector end, on the other side of the main body is disposed a second connector end. The latch lock piece is a flexible wire body, a tail portion of a movable end on one side of the latch lock piece is provided with a buckle, on the other side of the latch lock piece is a fixed end, disposed on the main body of the connector head. In a center of the fastening ring is provided with a connector seat, connected and fixed to a fixed point. In the protection sleeve is provided with a chamber, to receive the fastening ring and the buckle.