Patent ID: 8621898

Claim:
A foldable lock, comprising: a first body, comprising a first mating face resting in a first plane and a rotatable fastener exposed from the first mating face; a second body, comprising a second mating face resting in a second plane parallel to the first plane and a containing trough on the second mating face, the second mating face and the first mating face being moveable relative to each other in a direction parallel to the first and the second plane to separably mate with each other so that the rotatable fastener enters the containing trough and the second body separably conjugates with the first body, wherein the rotatable fastener selectively rotates in the containing trough; and a rod set, comprising a plurality of locking rods pivotally connected in series and connected to the first body and the second body at two ends of the rod set, wherein each locking rod is rotatable in two-dimension space with a connection joint as a rotation axis; the rotation axis is parallel to the normal line of the first mating face and the normal line of the second mating face; wherein the locking rods are selectively rotated to a stacking state to form a block configuration with the first body and the second body and to an expanded state to form a closed ring with the first body and the second body.