| 摘要 |
A sealing tester for the neck of a bottle is provided to easily perform a sealing test work and to minimize an internal space among a bottle neck, a bottle cap, a piston, and a sealing ring and to precisely test a sealing state between the bottle neck and the bottle cap. A sealing tester includes a sealing tester main body(10) inserted into a bottle neck through the inlet opening of the bottle neck, a main body fixing member(20) detachably engaged with the sealing tester main body to tightly fixing the sealing tester main body to the internal side of the bottle neck, a movement member(30) movably inserted into the guide hole of the sealing tester main body, and a sealing ring(S1) inserted to surround the movement member. The sealing tester main body includes a pushing unit(12) pushing the sealing ring in one direction in one leading end and a fastening unit(13) in the other leading end while the guide hole penetrates through the inside of the sealing tester main body so that the sealing tester main body is inserted into the inlet opening surface of the bottle neck(B) to expose the fastening unit to the outside.
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