Mailbox pop-up device based on electromagnetic force

The utility model discloses a mailbox pop-up device based on electromagnetic force, and relates to the field of mailboxes, the mailbox pop-up device comprises a box body, a plurality of cavities and slots are respectively arranged in the box body, a mounting plate is inserted in the cavities, a buffer assembly is arranged in the mounting plate, and the buffer assembly is arranged in the box body. The buffering assembly comprises sliding grooves formed in the two sides of the interior of the mounting plate, and a buffering air bag and a damping air bag which are arranged on the inner wall of the mounting plate. By arranging the buffering assembly, when the movable block moves, a buffering air bag is extruded, the buffering air bag is compressed after being extruded, primary buffering is conducted on the electromagnetic catapult, air in the buffering air bag flows into a damping air bag through an inflation pipe, and when the damping air bag expands, secondary buffering can be conducted on the movable block; an