| 摘要 |
PURPOSE:To facilitate automatic operation, by switching a quantity-detecting pipe type specimen leading valve carrier from a flow path of specimen fluid for enabling continuous introduction of specimens and constructing economical and simple structure. CONSTITUTION:A quantity detecting pipes 1 are arranged on top of an outer- cylinder 2 with angular distances of 90 deg. and 4 pairs of specimen inlet ports 6, carrier inlet ports 7, carrier outlet ports 8, and specimen outlet ports 9 are connected to the bottom of a fixed plate 4 per each 90 deg.. 3 pairs of carrier passages 10 and a pair of specimen passages 11 and carrier bypass 12 are formed in the inside cylinder 3 with angular distances of 90 deg.. And, the inside cylinder is allowed to rotate per each 90 deg. angle. Thus, the carrier flows into the flow path from the carrier outlet port 8 after passing through the pipe 1 from the port 7. Next, the fluid specimen enters into the pipe 1 through the path 11. In the mean time, the carrier flows to the path passing through the carrier bypass 12. Next, a constant quantity of specimen inside the quantity detecting pipe is pushed by the carrier to the path. Thus, by rotating the inside cylinder to an angle of 90 deg., the specimen can be introduced into a plurality of paths continuously.
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