Novel fully-sealed ultrathin food container

Abstract

The invention discloses a fully-sealed ultrathin food container. The container comprises a box cover and an open box body, wherein the box cover is provided with a downward-opened annular groove consisting of an inner groove wall, a groove top and an outer groove wall; the box body is provided with a box opening composite edge consisting of an inner straight edge, a flat edge and an outer straight edge; the groove is sleeved and buckled at the box opening composite edge; the inner side face of the outer groove wall of the groove is provided with a bump which latches the lower end part of the outer straight edge of the box opening composite edge; the outer straight edge of the box opening composite edge obliquely extends downwards and outwards and the lower end part of the box opening composite edge supports against the inner side face of the outer groove wall of the groove; the inner straight edge of the box opening composite edge or the inner groove wall of the groove is vertical; and the inner groove wall of the groove and the inner straight edge of the box opening composite edge support against each other and form an included angle of between 1 and 12 degrees. Due to the adoption of the scheme, the container has the advantages of stable inner sealing structure and the easy opening of the box cover compared with the prior art.

Description

technical field [0001] The invention relates to a novel fully-sealed ultra-thin food container which can prevent food soup from leaking and has high compressive strength. Background technique [0002] Traditional sealed food containers, such as the sealed lunch boxes disclosed in Patent Nos. 86210848, 87216769, 89200752, 94222756, etc., have sealing devices composed of locking mechanisms such as buckles, press buckles, and screws, and sealing elements. These designs not only have structural Complicated, high cost and other disadvantages, and not suitable for plastic, paper fast food boxes. Patent No. 89218416 discloses a plastic blister fast food box, which uses a self-locking structure of two concave-convex steps to replace the original product's planar fit, so that after the fast food box is closed, it is impossible to open without relying on the outside, and the sealing performance is improved . But when this fast food box is subjected to extrusion deformation, lid and ...

AI Technical Summary

Problems solved by technology

[0006] 1. Since the internal sealing structure is realized by the locking part, the locking part is realized by two protruding rings that are engaged, and a line seal is formed by the engagement of the two protruding rings. However, due to the small cross-sectional area of ​​the protruding rings, Moreover, the container is made of ultra-thin plastic with good elasticity and plasticity. When the container is deformed by pressure, the engagement degree of the two convex rings will decrease, so that the line seal will be destroyed, so that the stability of the inner sealing structure sex decline

[0007] 2. Also because the inner sealing structure is realized by two protruding rings that are engaged, it is more laborious to open the box cover

Images