Locking mechanisms to secure multiple cart components

A cart comprising:

• a lower platform;
• an upper platform;
• a first storage area disposed between the lower platform and the upper platform;
• a second storage area disposed adjacent to the upper platform;
• a door configured to secure the first storage area, wherein the door is configured to rotate outwards with respect to the upper platform;
• a hatch configured to secure the second storage area, wherein the hatch is configured to rotate upwards with respect to the upper platform;
• and
• a locking mechanism coupled to the upper platform and configured to lock both the hatch and the door in a locked position, wherein unlocking the locking mechanism unlocks both the door and the hatch, wherein the locking mechanism comprises:
• a double cam comprising a first hook that engages the hatch, and a second hook that engages the door;
• a body;
• a bezel coupled to the body;
• a piston configured to rotate inside the body, wherein the piston moves axially inside the body during unlocking or locking of the locking mechanism;
• and
• a screw configured to couple the double cam to the piston.