Abstract: A container includes a box body having a housing trough, a jutting flange on the top that has buffer ridges on two ends, and an engaging member and a latch member extending outwards from two sides close to the frame rim of the jutting flange and an upper lid. The engaging member has a hook and the latch member has a sloped end. The upper lid has a clipping member and a latch plate having respectively a latch slot corresponding to and engageable with the hook and sloped end so that the upper lid can be anchored on the housing trough in an openable manner, and also can form a sealing condition with the box body. Thereby the upper lid can be lifted and opened to remove goods held in the box body by first hitting the buffer ridges to offset too much lifting force. The clipping member further has a latch flange on one end to lean against the outer side of the box body with one sloped surface of the hook holding the periphery rim of the upper cap.

Abstract: A container device with a tightly engaged cover comprises a container; each of at least two lateral walls having a buckling recess; a cover; each of at least two sides of the cover being formed with downward buckling plate; an inner side of each buckling plate having at least one buckle; an upper side of one end of the buckle having a buckling block. When the cover covers upon the container, the buckling plates of the cover will be expanded so that the cover covers the container. The buckles of the buckling plates of the cover will align to and enter into the buckling recesses of the container so that the buckles move downwards through a length; and thus the buckling blocks of the buckles will engage in the buckling recesses of the container; and the container is engaged with the cover by horizontal insertion and buckling effect.