Gas pressure protection device capable of preventing glue from flowing back

Abstract

The invention discloses a gas pressure protection device capable of preventing glue from flowing back. The gas pressure protection device comprises a fixed base and a barrel body installed on the fixed base. A connector is arranged at the lower end of the fixed base. A first plug ring is arranged on the outer wall of the connector and abuts against the inner wall of the barrel body. A barrel coreis movably arranged in the connector. A sealing head is arranged at the upper end of the barrel core. A second plug ring is arranged on the outer wall of the sealing head and abuts against the inner wall of the connector. A middle ring is arranged at the middle end of the barrel core. A third plug ring is arranged on the outer wall of the middle ring and abuts against the inner wall of the barrelbody. A lower rod is arranged at the lower end of the barrel core. A middle hole is further formed in the barrel core and penetrates the barrel core. A first full-closed area is formed by making the first plug ring abut against the inner wall of the barrel body, and therefore glue backflow caused when quick drying glue flows back due to gas pressure is prevented. A second full-closed area is formed by making the third plug ring abut against the inner wall of the barrel body, the quick drying glue in the barrel body is isolated from the first closed area, the sealed environment in the barrel body is further enhanced, and the convenience degree of use of the quick drying glue is greatly improved.

Description

technical field [0001] The invention relates to the technical field of glue backflow prevention, in particular to an air pressure protection device for glue backflow prevention. Background technique [0002] In some stations that need to use glue, an air pressure dispensing machine is usually equipped to facilitate the staff to use it quickly, thereby improving production efficiency. If it is too large, or the quick-drying glue backflows due to improper placement, it is extremely inconvenient to use and seriously affects production efficiency. Contents of the invention [0003] The object of the present invention is to provide an air pressure protection device for preventing glue from flowing back, so as to solve the problems raised in the above-mentioned background technology. [0004] In order to achieve the above object, the present invention provides the following technical solution: an air pressure protection device for preventing glue backflow, comprising a fixing s...

AI Technical Summary

Problems solved by technology

[0002] In some stations that need to use glue, an air pressure dispensing machine is usually equipped to facilitate the staff to use it quickly, thereby improving production efficiency. If it is too large, or the quick-drying glue backflows due to improper placement, etc., it is extremely inconvenient to use, which seriously affects production efficiency

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