Connecting device and detection method for coming in and going out negative pressure environment

Abstract

The invention provides a connecting device and a detection method for coming in and going out the negative pressure environment. A hollow cavity is formed in a matrix to accommodate an intermittent rotor. A sealing element is arranged in a contact place of the intermittent rotor and the inner surface of the matrix, the intermittent rotor divides the hollow cavity into an upper cavity and a lower cavity, and air exchange cannot be carried out between the upper cavity and the lower cavity; the upper end extension part of the matrix is connected to an upper cover plate, and a feed inlet is formedin the upper cover plate; the lower end extension part of the matrix is connected to a lower cover plate and a discharge port is formed in the lower cover plate; a first hole and a second hole corresponding to the feed inlet and the discharge port are separately formed in the intermittent rotor, and a material enters the negative pressure detection environment through the feed inlet and the firsthole when the intermittent rotor rotates. The connecting device can connect atmosphere to a negative pressure environment detection platform, so that the inflated and packaged material can come in and go out of the negative pressure detection platform smoothly to achieve online detection of all materials, so that it is ensured that outgoing products are qualified products, and a condition that the product percent of pass is evaluated by casual inspection of the products is avoided.

Description

technical field [0001] The invention relates to the technical field of vacuum detection, in particular to a connection device and a detection method for entering and exiting a negative pressure environment. Background technique [0002] Existing negative pressure detection platforms are all independent individuals. During detection, it is necessary to place the object to be detected in the normal pressure environment, and then close the platform for vacuuming, and observe the state of the object to be tested in the negative pressure environment, thereby judging Whether the item is leaking. The defect of the existing technology is that the negative pressure detection platform is an equipment independent of the production line, and a batch of produced materials can only be randomly inspected, and it is impossible to detect all the produced products, which increases the leakage of defective products. The main reason for this situation is that the platform of the negative press...

AI Technical Summary

Problems solved by technology

The defect of the existing technology is that the negative pressure detection platform is an equipment independent of the production line, and a batch of produced materials can only be randomly inspected, and it is impossible to detect all the produced products, which increases the leakage of defective products. The main reason for this situation is that the platform of the negative pressure environment is a closed space, and the external atmosphere exists everywhere, without a suitable transition device, once the negative pressure environment and External connection, negative pressure environment will not be able to form

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