Packaging container

Abstract

The invention provides a packaging container. The packaging container comprises a container body part, a container opening part and a threaded part, wherein the threaded part comprises a plurality ofthreads distributed in the circumferential direction of the container opening part, each thread comprises a corresponding first thread section, a corresponding second thread section, a corresponding third thread section and a corresponding fourth thread section, the top faces of the first thread sections incline upwards from the first ends to the second ends of the first thread sections correspondingly, the first ends of the second thread sections are connected with the second ends of the first thread sections correspondingly, the bottom faces of the second thread sections extend from the first ends to the second ends of the second thread sections along the horizontal plane, the first thread sections or the second thread sections are provided with stop surfaces, the first ends of the thirdthread sections are in butt joint with the second ends of the second thread sections correspondingly, the third thread sections incline upwards from the first ends to the second ends of the third thread sections, the first ends of the fourth thread sections are in butt joint with the second ends of the third thread sections correspondingly, the fourth thread sections incline upwards from the first ends to the second ends of the fourth thread sections, and included angles between the fourth thread sections and the horizontal plane are larger than included angles between the third thread sections and the horizontal plane correspondingly. The arrangement of the threaded part of the packaging container is favorable for reducing opening force of a container cover.

Description

technical field [0001] The present disclosure relates to the technical field of packaging, in particular to a packaging container. Background technique [0002] In the related art, the thread portion on the mouth of some packaging containers adopts the general 82#GPI (glass packaging institute, Glass Packaging Institute) standard, the standard number is GPI20451, and 82# refers to the inner diameter of the bottle cap is 82mm. Such as figure 1 As shown, limited by the circumference of the bottle mouth, the existing general standard thread part includes six threads 31' of "four long and two short". The entry channel of the cover claw is about 1.5-2mm. The main reason for setting the threaded part in this way is to facilitate demoulding, and to avoid interference between the opening and closing of the bottle mouth mold and the demoulding action with the thread 31'. If six identical GPI long threads 31' are set, due to the high degree of overlap of the front and rear threads ...

AI Technical Summary

Problems solved by technology

If six identical GPI long threads 31' are set, due to the high overlap of the front and rear threads 31', the opening and closing of the bottle mouth mold will lead to risks such as thread 31' deformation and bottle mouth deformation.

If six identical GPI short threads 31' are set, the front and rear threads 31' have no vertical overlap, and the introduction is insufficient. When the container cap is pressed down and screwed in, the six cap claws are likely to engage eccentrically with the threads 31', and even screw into the crooked cap. lead to cap exception

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