Foldable mechanism and infant carrier thereof

An infant carrier comprising:

• a main frame comprising a front leg and a rear leg;
• a seat mounted on the main frame;
• and
• a foldable mechanism comprising:
• a first mount connected to one of the front leg and the rear leg;
• a second mount connected to the other of the front leg and the rear leg and pivotally connected to the first mount to make the front leg pivotally connected to the rear leg, the second mount having a first mating portion and a second mating portion spaced apart from the first mating portion, the infant carrier being locked in the folded state when the first mount rotates to a first rotating position relative to the second mount, the infant carrier being locked in the expanded state when the first mount rotates to a second rotating position relative to the second mount;
• and
• a locking member movably disposed between the first mount and the second mount, the locking member being movable along an axial direction of a rotation axis of the first mount and the second mount to lock and release rotation of the first mount relative to the second mount, the locking member having a positioning portion and a locking portion, the first mount being locked at the first rotating position or the second rotating position via movement of the locking member;
• wherein the positioning portion is engaged with the first mating portion to lock the first mount at the first rotating position, and the positioning portion is disengaged from the first mating portion to release the first mount;
• wherein the locking portion is engaged with the second mating portion to lock the first mount at the second rotating position, and the locking portion is disengaged from the second mating portion to release the first mount;
• wherein a depth of the first mating portion is shallower than a depth of the second mating portion.