A COMBINED LIFTING PLATFORM AND A RELAY-TYPE LIFTING METHOD FOR CARGO

摘要

A combined lifting platform includes a first lifting platform device and a second lifting platform device. The second lifting platform device comprises a second main platform chassis (200) and a second bridge platform chassis (217) combined together with the second main platform chassis. The second main platform (202) is mounted on the second main platform chassis (217) by a raising mechanism of the main platform, and the second bridge platform (207) is mounted on the second bridge platform chassis (217) by a raising mechanism for the bridge platform. The lowest height of the second main platform (202) and the second bridge platform (207) atthe lowest position is larger than or equal to the lowest height of first bridge platform at the lowest position, and is less than or equal to the maximally raised height of the first main platform; the maximally raised height of the second main platform and the second bridge platform is larger than the maximally raised height of the first main platform. The invention also discloses a relay-type lifting method for cargo, and the invention can be used in transportation of airfreight and in the other occasion.