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Improved structure of sealed packaging container

A technology of sealing packaging and improving structure, applied in the field of containers, can solve the problems of decreased sealing performance, instability of anti-tripping structure, etc., and achieve the effect of ensuring stability, stable anti-tripping structure, and overcoming external force extrusion or torsion

Inactive Publication Date: 2018-12-21
MEIYANG PLASTIC METALS PRODS QUANZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Further, when the anti-tripping structure of this packaging container is unstable, its sealing performance will of course also decrease thereupon.

Method used

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  • Improved structure of sealed packaging container
  • Improved structure of sealed packaging container
  • Improved structure of sealed packaging container

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The improved structure of a kind of airtight packing container of the present invention, embodiment is as figure 1 As shown in -3, it includes a box cover 1 and an open box body 2. The edge of the box cover 1 extends outwards and is provided with an annular first inner fitting groove 11 with a notch downward. The first inner fitting The lower end of the outer groove wall 113 of the groove is bent and extended outwards and upwards in turn to form an annular first outer matching groove 12 with the notch upward; The ring-shaped second inner fitting groove 21, the lower end of the outer groove wall 213 of the second inner fitting groove is bent and extended outwards and upwards in turn to form an annular second outer fitting groove 22 with the notch upward; The first inner fitting groove 11, the first outer fitting groove 12, the second inner fitting groove 21 and the second outer fitting groove 22 are elastic fitting grooves; the outer fitting groove of the second outer fi...

Embodiment 2

[0046] like Figure 4 As shown, the difference between this embodiment and Embodiment 1 is only that: the inner groove wall of the first inner fitting groove 11 and the inner groove wall of the second inner fitting groove 21 both adopt a straight edge structure, and the inner groove wall of the first inner fitting groove 11 The inner groove wall is not in contact with the inner groove wall of the second inner fitting groove 21 .

Embodiment 3

[0048] like Figure 5 As shown, the difference between the present embodiment and the second embodiment is only that a first inner pressing member 1111 is additionally provided on the outer surface of the inner groove wall of the first inner matching groove 11 . The first internal pressing member 1111 can adopt a closed-loop structure or an intermittent structure, and the intermittent structure can adopt a point shape or a zigzag shape. The sealing performance of the surface sealing structure of the corresponding groove walls of the first outer fitting groove 12 and the second outer fitting groove 22 is enhanced by the first inner pressing member 1111 .

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Abstract

The invention discloses an improved structure of a sealed packaging container, comprising a container cover and an open container body. Edges of the container cover are provided with a first inner mating groove and a first outer mating groove of a rotary structure. An opening of the container body is correspondingly provided with a second inner mating groove and a second outer mating groove of therotary structure. The second inner mating groove is nested in the first inner mating groove, and the first outer mating groove is nested in the second outer mating groove. An anti-tripping structureis further arranged. At least one pair of corresponding groove walls of the first inner mating groove and the second inner mating groove or the first outer mating groove and the second outer mating groove are in a tapered shape matched with each other and are attached to each other. An outer groove wall of the second outer mating groove extends downwards from an upper end part to form two indentations which are easy to tear. A security tear-off stripe is formed in a portion between the two indentations. The depth of the two indentations is slightly smaller than the wall thickness of the outergroove wall of the second outer mating groove. The packaging container disclosed by the invention is high in deformation resistance, stable in anti-tripping structure, and good in sealing performance.

Description

technical field [0001] The invention relates to a container, in particular to an improved structure of a sealed packaging container. Background technique [0002] Traditional food containers or packaging containers, such as the sealed lunch boxes disclosed in patents such as Patent Nos. 86210848, 87216769, 89200752, and 94222756, have sealing devices composed of locking mechanisms such as buckles, buckles, and screws, and sealing elements. These designs are not only There are disadvantages such as complex structure and high cost, and it is not suitable for plastic and 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D43/06B65D43/08B65D53/00A45C11/20
CPCA45C11/20B65D43/065B65D43/08B65D53/00
Inventor 蔡沧洋张冬阳蔡啸杰庄跃新
Owner MEIYANG PLASTIC METALS PRODS QUANZHOU
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