GROUND WATER SAMPLING APPARATUS

摘要

PROBLEM TO BE SOLVED: To sample ground water in a bore hole in a pressurized inactive state with simple constitution and simple operation. SOLUTION: This ground water sampling apparatus has a sampling container 2; an upper base part 4 having a passage opening of passages (4a'-4a) and formed with a bore hole 4g in the peripheral wall of a recess 4e; an upper slide port 6 formed with a fitting groove part 6d and a through-hole 6c and slidably disposed at the side face of the upper base part 4; a trigger 8 formed with a fitting groove part 8e at a shaft part 8a which is slidably inserted in the upper base part recess 4e; a fitting member 9 fitted into the bore hole 4g in the peripheral wall of the upper base part recess 4e; a trigger 8 flip-up spring 14 energizing the force to push up the trigger 8 on the basis of the upper base part 4; a slide port flip-up spring 15 energizing the force to push up the upper slide port 6 on the basis of the upper base part 4; and a weight 10 which is a separate body from the above structure. COPYRIGHT: (C)2010,JPO&INPIT