Fastening structure and seal box with the fastening structure

Abstract

The present invention discloses a fastening structure having a fastening flange extended outward from the periphery of a cover, and the fastening flange has a latch portion under the fastening flange for latching and fixing the cover; and a hinge portion for connecting the fastening flange at the periphery of the cover, and the hinge portion has a plurality of sections of crevices for reducing a hinge area that connects the fastening flange to the cover. The invention also discloses a sealed box that includes the fastening structure, and a container having a latch structure disposed at a top edge of the container and used together with the latch portion for latching and fixing the cover. Without changing the thickness of the hinge portion, the invention can save efforts for the operation of the sealed box while maintaining the stress of the hinge portion.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a plastic box, and more particularly to a fastening device of a box body and a plastic container with the fastening device.BACKGROUND OF THE INVENTION[0002]Referring to FIGS. 1 to 3 for a traditional structure of a sealed box having a container for containing objects or storing food, the plastic sealed box 100 includes a sealed box 100 having a container 110 and a cover 120. The container 110 includes a plurality of fixing protrusions 111 disposed at the top of the container 110 and a plurality of fastening flanges 130 disposed at the periphery of the cover 120, and the fastening flanges 130 are connected to the periphery of the cover 120 by a hinge portion 140 and turned through the hinge portion 140. The fastening flange 130 includes a locking slot 131 corresponding to the fixing protrusion 111 for latching and fixing the protrusion 111, such that the fastening flange 130 can latch the cover 120 to the container 110.[000...

AI Technical Summary

Benefits of technology

[0008]The primary objective of the present invention is to overcome the foregoing shortcomings and avoid the existing deficiencies by providing a fastening structure that can maintain the stress of a hinge portion for saving efforts for the operations of folding and opening the fastening flange than the prior art without changing the thickness of the hinge portion between a cover and a fastening flange.

[0009]Another objective of the present invention is to provide a sealed box having a container without the fixing protrusions to maintain the integrity of the periphery at the top of the container, such that if the sealed box is one with a circular opening, then the fastening flange no longer need any locking slot to be aligned precisely at the fixing protrusion, and the fastening flange can latch with the cover to facilitate the operations of the container.

[0010]The fastening structure of the invention is a fastening structure disposed at the periphery of a cover, comprising: at least one fastening flange extended outward from the periphery of the cover, a latch portion disposed under the fastening flange for latching and fixing the cover; and a hinge portion for connecting the fastening flange at the periphery of the cover, wherein the hinge portion has a plurality of sections of crevices for reducing a hinge area where the fastening flange is connected to the cover.

Problems solved by technology

Further, the design of the fixing protrusion 111 no longer can keep the integrity of the periphery of the top of the container 110.

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