Transportation device and method for ocean engineering structures

A transportation device for ocean engineering structures, by comprising:

• a transport case body with an accommodating cavity for loading cargoes, wherein the accommodating cavity has an opening;
• a supporting member comprising a supporting plate, a protective plate and at least one supporting rod, wherein the supporting plate is arranged in the accommodating cavity, the supporting plate is driven to ascend and descend in a first direction by at least one lifting mechanism to ascend to a first position to be close to the opening or descend to a second position to be far away from the opening, the protective plate is rotationally connected to the transport case body to shield or expose the opening, at least one sliding groove is provided at the protective plate, each sliding groove is correspondingly and slidably connected to one supporting rod, one end of the supporting rod is fixed on the supporting plate, the other end of the supporting rod is slidably connected to the sliding groove, the sliding groove has a first end and a second end which are oppositely arranged, and the supporting member has a first state and a second state;
• when the supporting member is at the first state, the supporting plate is driven to ascend to the first position by the lifting mechanism, the other end of the supporting rod slides to the first end of the sliding groove, and the protective plate is exposed to reveal the opening, allowing the accommodating cavity to be opened;
• and
• when the supporting member is at the second state, the supporting plate is driven to descend to the second position by the lifting mechanism, the other end of the supporting rod slides to the second end of the sliding groove, and the protective plate covers the opening, thereby completely sealing the accommodating cavity.