US Patent 9820587 Merchandise security hook

A merchandise security hook, comprising a base, a backboard, an upper iron wire, a lower iron wire, a lock sleeve, a key, a rotary core and an example merchandise, wherein a short hook is arranged between the lower iron wire and the backboard, the base is arranged between the upper iron wire and the backboard and is connected with the upper iron wire through a pressing piece and a pressing screw, a base spring is sleeved on the lower iron wire, a lock sleeve is arranged at an end of the lower iron wire, a plastic stop block is arranged between the lock sleeve and the upper iron wire, a label and a return spring are arranged at an end of the upper iron wire. The merchandise security hook is designed reasonable and easy to use.