Soft cavity for testing the air tightness of a soft bag packaging product
By designing a flexible cavity for testing the airtightness of soft bag packaging products, and adopting an upper and lower cavity structure and nitrogen spring support, the adaptability problem of testing multi-size packaging products was solved, and efficient and low-cost airtightness testing was achieved.
CN224552656UActive Publication Date: 2026-07-24SHANGHAI ZHONGXUN TESTING TECH CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI ZHONGXUN TESTING TECH CO LTD
- Filing Date
- 2025-10-22
- Publication Date
- 2026-07-24
AI Technical Summary
Technical Problem
Existing packaging bag sealing testing equipment cannot adapt to packaging products of various sizes, resulting in increased production costs and low testing efficiency.
Method used
A flexible chamber for testing the airtightness of flexible bag packaging products is designed. It adopts an upper and lower cavity structure, and uses nitrogen spring support and strong magnet attraction to achieve sealing. Combined with O-ring and sponge design, it forms a flexible and adaptable chamber to packaging products of different sizes.
Benefits of technology
It enables universal testing of packaged products of different sizes, reduces production costs, improves testing efficiency and accuracy, and ensures the reliability and safety of testing.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224552656U_ABST
Abstract
The utility model belongs to the field of packaging bag air tightness detection, specifically discloses a kind of soft cavity of soft bag packaging product air tightness test, including upper cavity portion, lower cavity portion, the butterfly hinge of connecting upper cavity portion and lower cavity portion one side and the nitrogen spring of respectively connecting upper cavity portion and lower cavity portion same side mounting hole, upper and lower cavity hollow form cavity, by screw extrusion the sealing pad and O ring between upper and lower cavity one form seal, after upper and lower cavity close by upper cavity surface O ring two form seal, cavity opens through nitrogen spring support, it is convenient to detect article to fetch, it is rubber pad between upper and lower cavity and pressing plate, sponge is filled between pressing plate and cover plate, this makes chamber become soft cavity, height space size can be elastically changed in certain range, different size packaging product in certain range can be detected, reach the effect of one cavity multi-use, effectively save cost.
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