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A Controllable
Continuous and Dosed Gas Sampler
This patent of practical new type is a kind of
controllable continuous and dosed gas sampler
mainly used for site determination of underground
air in mines. It is composed of cylinder (4),
piston (5), bearings (6), screwing rod (7), screwing
pin (9), handle (10), and shift ring (12). Its
features lie in that it has a set of screw system
and a set of position shift device. Using the
srew system, even and dosed sampling of the vacuating
piston can be achieved. At the same time, matching
with the position shift device, quick restoring
of the gas collecting structure may be realized,
to make the operation of gas collecting even more
convenient, correct and fast, which not only achieves
the result of quantity analysis but also obviously
cutd the cost.
Patent number：98203548.9
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