Key chain capable of preventing loss by scanning two-dimensional code mobile phone number

The utility model discloses a key chain capable of preventing loss by scanning a two-dimensional code mobile phone number, which comprises an opening, a connecting belt, a rotating plate, a connecting block, a fixing ring, a connecting hole, a first end cover, a second end cover, a two-dimensional code, a bolt and a side groove. A picker can scan the two-dimensional code through a smart phone to obtain the mobile phone number of an owner of the key chain, then a loser can be notified to take the key chain, and the key chain has the advantages that the person picking the key can contact the loser more conveniently, and the key chain is effectively prevented from being lost. 本实用新型公开了一种通过扫描二维码手机号码防丢的钥匙扣，包括开口、连接带、转板、连接块、固定环、连接孔、第一端盖、第二端盖、二维码、螺栓和侧面槽，本实用新型通过设置了二维码于第一端盖前端，捡拾者可通过使用智能手机对二维码进行扫描以获取该钥匙扣的主人的手机号码，然后可通知遗失者进行取拿，到达了更方便使得捡拾钥匙的人联系到失主，有效防止钥匙扣丢失的有益效果。