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Improved sealed packaging container

A technology for sealing packaging and containers, which is applied in the field of containers, can solve problems such as the instability of the anti-tripping structure and the decrease of sealing performance, and achieve the effects of stabilizing the anti-tripping structure, improving the sealing performance, and overcoming external extrusion or torsion

Active 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 sealed packaging container

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of improved airtight packing container of the present invention, embodiment is as figure 1 As shown in -4, 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 fitting groove The...

Embodiment 2

[0040] Such as Figure 5 As shown, the difference between the present embodiment and the first embodiment is that the inner and outer groove walls of the first inner fitting groove 11 and the second inner fitting groove 21 adopt matching straight-edge structures and do not fit each other.

Embodiment 3

[0042] Such as Figure 6 As shown, the difference between the present embodiment and the second embodiment is only that the limiting protrusion 23 is omitted, and the outer groove wall of the second outer fitting groove 22 has a reverse tapered structure. The upper end of the outer groove wall 123 of the first outer fitting groove is locked by the outer groove wall of the second outer fitting groove 22 of the reverse cone structure, forming a second anti-tripping structure.

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Abstract

The invention discloses an improved sealed packaging container. The improved sealed packaging container comprises a container cover and an open container body. The edge of the container cover outwardsextends to be provided with a first annular inner matching groove with a downward groove opening, the opening edge of the container body outwards extends to be provided with a second annular inner matching groove with a downward groove opening, the lower end portion of the outer groove wall of the first inner matching groove and the lower end portion of the outer groove wall of the second matching groove are sequentially outwards and upwards bent and extend to form a first annular outer matching groove with an upward groove opening and a second outer matching groove with an upward groove opening correspondingly. The first inner matching groove, the first outer matching groove, the second inner matching groove and the second outer matching groove are all elastic matching grooves. The second inner matching groove is embedded into the first inner matching groove, and the first outer matching groove is embedded into the second outer matching groove. The improved sealed packaging containeris further provided with an anti-trip structure. The outer groove wall of the first outer matching groove is in line contact with the outer groove wall of the second outer matching groove in an elastic abutting manner. The packaging container has relatively high anti-deformation capability, the anti-trip structure is relatively stable, and the sealing performance is relatively good.

Description

technical field [0001] The invention relates to a container, in particular to an improved 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 box body faste...

Claims

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Application Information

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IPC IPC(8): B65D43/06
CPCB65D43/06
Inventor 蔡啸杰蔡沧洋张冬阳庄跃新
Owner MEIYANG PLASTIC METALS PRODS QUANZHOU
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