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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 stable anti-tripping structure, improving 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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of improved 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 fitting groove The...

Embodiment 2

[0046] Such as Figure 4 As shown, the difference between this embodiment and Embodiment 1 is only that: the groove bottom of the first outer fitting groove 12 and the groove bottom of the second outer fitting groove 22 are in surface contact with each other; the inner fitting groove of the first inner fitting groove 11 The groove wall adopts a straight edge structure, and each corner is a circular arc transition structure. The outer groove wall of the first inner fitting groove 11 adopts a tapered surface structure. The first inner fitting groove 11 and the second inner fitting groove 21 are interference fit. The arc transition of the inner groove wall of the first inner fitting groove 11 is tangent to the inner groove wall of the second inner fitting groove 21 to form an inner sealing structure along the line. The outer groove wall of the first inner matching groove 11 is not in contact with the outer groove wall of the second inner matching groove 21, the first inner pressi...

Embodiment 3

[0048] Such as Figure 5As shown, the difference between this embodiment and Embodiment 1 is that the first inner pressing part 1111 is omitted, the inner groove wall of the first inner fitting groove 11 adopts a straight edge structure, and the first inner fitting groove 11 is connected to the second inner fitting groove. The interference fit of the fitting groove 21 uses the arc transitions of the inner and outer groove walls of the first inner fitting groove 11 to be tangent to the inner and outer groove walls of the second inner fitting groove 21 respectively to form an inner sealing structure along the line and Sealed structure along the middle line.

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Abstract

The invention discloses an improved sealed packaging container. The improved sealed packaging container comprises a container lid and an open container body. An edge of the container lid is provided with a first inner matching groove and a first outer matching groove of a rotating structure, and a mouth of the container body is correspondingly provided with a second inner matching groove and a second outer matching groove of the rotating structure. The second inner matching groove is nested in the first inner matching groove, and the first outer matching groove is nested in the second outer matching groove. An anti-tripping structure is further arranged on the improved anti-deformation packaging container. The inner groove wall of the first inner matching groove and the inner groove wall of the second inner matching groove and / or the outer groove wall of the first inner matching groove and the outer groove wall of the second inner matching groove are line contact with each other in an elastic jacking manner. The outer groove wall of the second outer matching groove extends downwards from the upper end portion and is provided with two indentations which are easy to tear. The portion between the two indentations forms an anti-counterfeiting and easy-open strip, and the depth of the two indentations is slightly smaller than the wall thickness of the outer groove wall of the second outer matching groove. The improved sealed packaging container has strong anti-deformation capability, and good sealing performance since the anti-tripping structure is stable.

Description

technical field [0001] The present invention relates to containers, in particular to improved airtight packaging containers. 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 bod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D43/02B65D55/02
CPCB65D43/0204B65D55/024
Inventor 蔡沧洋张冬阳蔡啸杰庄跃新
Owner MEIYANG PLASTIC METALS PRODS QUANZHOU
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