Large-caliber drainage sampling valve
The utility model belongs to the technical field of gas sampling. A large-diameter drainage sampling valve comprises a middle rod, a supporting rod, a connecting rod, a sealing umbrella cover and a sealing ring, a threaded section is arranged on the middle rod, and a sampling through hole or a sampl...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model belongs to the technical field of gas sampling. A large-diameter drainage sampling valve comprises a middle rod, a supporting rod, a connecting rod, a sealing umbrella cover and a sealing ring, a threaded section is arranged on the middle rod, and a sampling through hole or a sampling guide pipe is arranged in the middle of the middle rod; the multiple supporting rods are circumferentially and uniformly distributed and hinged to the top of the middle rod, a sliding ring and a rotating nut are arranged on the middle rod, the sliding ring is arranged on the middle rod in a sliding mode, and the rotating nut is meshed with the threaded section in a matched mode; a connecting rod is arranged between each supporting rod and the sliding ring. The sealing umbrella cover is arranged on the outer side of the supporting rod in a covering manner; the sealing ring is arranged on the outer side of the lower end of the sealing umbrella cover, and the upper end of the sealing umbrella cover is connected wi |
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