The utility model discloses a container which comprises a middle storable shell, the two ends of the middle storable shell are connected with a first side shell and a second side shell respectively in a sliding mode, and positioning
insertion strips are evenly arranged at the top and the bottom of the middle storable shell. The first side shell and the second side shell are both fixedly provided with edge sealing air bag pieces matched with the middle storable shell, the edge sealing air bag pieces are connected with air guide
pipe pieces, and air valves are installed on the air guide
pipe pieces. According to the utility model, the self structure is optimized, and a user can utilize the sliding connection effect between the positioning
insertion strip and the first side shell as well as between the positioning
insertion strip and the second side shell to enable the first side shell and the second side shell to get close to each other for storage or to be unfolded away from each other along the middle storable shell; and therefore, the device has the
advantage of being telescopic, stored and deformed, transportation is convenient, and the occupied space is reduced.