A type of sealing packaging bag

By designing a foldable bottom and top structure and an inner sealing strip, the problem of insufficient packaging bag space was solved, enabling a larger filling capacity and an aesthetically pleasing sealed packaging bag design.

CN224278176UActive Publication Date: 2026-05-26SHANGHAI HUAHANGYANG MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI HUAHANGYANG MACHINERY CO LTD
Filing Date
2025-06-19
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing packaging bags have insufficient space at the top, resulting in a smaller filling capacity.

Method used

The bag bottom and top are designed as foldable flat surfaces. Before filling, the material is filled through the inlet and sealed. When full, it takes on a cubic shape, increasing the filling capacity. The design of the inner sealing strip and the outlet improves the aesthetics.

Benefits of technology

It increases the amount of material that can be filled in the packaging bag, reduces the space occupied by the inlet, and enhances both aesthetics and practicality.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224278176U_ABST
    Figure CN224278176U_ABST
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Abstract

This utility model discloses a sealed packaging bag, comprising: a bag body, a bag bottom, a bag top, and side panels; the bag body includes: a front panel and a rear panel; side panels are provided on both sides of the front panel, and the side panels are used to connect the front panel and the rear panel; the bottom of the front panel is provided with a bag bottom, and the bag bottom is used to connect the front panel, the rear panel, and the side panels; the top of the front panel is provided with a bag top, and the bag top is used to connect the front panel, the rear panel, and the side panels; both the bag bottom and the bag top are foldable planes; before filling with material, a material inlet is provided at the connection between the bag top and the front panel or the rear panel; after being filled with material, the bag top is sealed to the front panel or the rear panel. This utility model, by making both the bag bottom and the bag top foldable planes, makes the packaging bag cubic in shape after being filled with material, thereby increasing the material capacity of the packaging bag.
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