Vacuum detection capsule used in container

A technology of vacuum detection and capsule, which is applied in liquid tightness measurement using liquid/vacuum degree, machine/structural component test, fluid tightness test, etc. It can solve problems such as insufficient vacuum degree, health hazards, losses, etc. , to achieve the effect of simple structure

CN112945486APending Publication Date: 2021-06-11王伟
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-06-11

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Abstract

The invention discloses a vacuum detection capsule used in a container. The vacuum detection capsule comprises a capsule lower shell and a capsule upper shell, the capsule lower shell and the capsule upper shell are detachably connected, an elastic inner container is placed in a containing cavity formed by the capsule lower shell and the capsule upper shell, the elastic inner container is of a hollow structure, air holes are formed in the side wall of the capsule upper shell, the capsule upper shell is of a transparent structure, and scale marks are engraved on the outer wall of the capsule upper shell. The vacuum detection capsule is simple in structure, the capsule composed of the capsule lower shell, the capsule upper shell and the elastic inner container is placed in the container, then the container is vacuumized, at the moment, the internal air pressure of the elastic inner container is higher than the external air pressure of the elastic inner container, after the elastic inner container expands and stabilizes, the reading can be read through the position, relative to the scale marks, of the top face of the elastic inner container, and after a period of time, if the reading changes, the air pressure inside and outside the elastic inner container changes, the elastic inner container retracts, the sealing performance of the container is proved to be poor, and therefore the purpose of leakage detection is achieved.
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Description

technical field

[0001] The invention relates to the technical field of sealing detection, in particular to a vacuum detection capsule used in a container. Background technique

[0002] In daily life, most items are stored under normal pressure, such as clothing, mattresses and food, etc. Storing items under normal pressure tends to breed microorganisms, produce mites and mildew, and these microorganisms are harmful to the human body. There are health hazards; compared with storing items under normal pressure, these microorganisms will die due to lack of oxygen when storing items under vacuum conditions, so that items can be stored for a long time without mold or deterioration, while vacuum storage requires a vacuum Containers are used to store items. For example, food cans are used to store food, and vacuum bags are used to store clothes to prevent the above situation. However, during the use of the above vacuum containers, there may be air leakage, resulting in insufficient...

Examples

Embodiment Construction

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0017] refer to Figure 1-3 , a vacuum detection capsule used in a container, comprising a capsule lower shell 2 and a capsule upper shell 3, the capsule lower shell 2 and the capsule upper shell 3 are detachably connected, and the capsule lower shell 2 and the capsule upper shell 3 form a cavity An elastic liner 1 is placed, and the elastic liner 1 is a hollow structure. The upper shell 3 of the capsule is provided with air holes 5 on the side wall. 2 and the capsule upper casing 3 are all made of food-grade plastics, which can be directly used in food storage containers to improve its safety in use.

[0018] Wherein, the elastic liner 1 is attached to the inner wa...