Lock and lock structure

The utility model discloses a lockset and a lockset structure, the lockset comprises a lock head, and the lock head is provided with a connecting plug; the protective sleeve comprises a sleeve ring, the sleeve ring is provided with a first opening and a second opening, the lock head extends into the second opening and abuts against the inner wall of the sleeve ring, the sleeve ring is arranged around the lock head, and the connecting plug is exposed out of the first opening; and one side of the opening and closing part is connected with the lantern ring, and the opening and closing part overturns relative to the lantern ring so as to expose or block the first opening. According to the technical scheme, impurities such as iron powder, water mist and dust in the external environment are prevented from adhering to the connecting plug, the connecting plug is prevented from being corroded and damaged, and normal work of the lock is guaranteed. 本实用新型公开一种锁具和锁具结构，锁具包括锁头，所述锁头设有连接插头；保护套，所述保护套包括套环，所述套环设有第一开口和第二开口，所述锁头伸入