JPH0184064U - - Google Patents

Description

[Brief explanation of the drawing]

1 is an exploded perspective view showing one embodiment of the sample metering valve of the present invention, FIG. 2 is a front view of the same, and FIG. 3 is a plan view showing the polished surface of one of the fixing elements 10 in FIG. 4 is a bottom view of the same, FIG. 5 is a sectional view taken along the AOA line in FIG. 8 is a sectional view taken along the COC line in FIG. 7, FIG. 9 is a plan view showing the polished surface of the other fixed element 50 in FIG. 1, and FIG. 10 is a bottom view of the same. FIG. 11 is a sectional view taken along the DOD line in FIG. 9, and FIG. 12 is a close-fitting member 60.
FIG. 13 is an explanatory diagram showing an example of a holding member, FIG. 14 is a schematic diagram showing the first state of the fluid circuit system in the embodiment, and FIG. 16 to 19 are cross-sectional explanatory views showing an example of a tapered passageway, and FIGS. 20 and 21 are explanatory views showing an example of a sample aspiration method. , FIGS. 22 to 25 are schematic diagrams of conventional sample metering valves. FIG. 22 shows the first state, FIG. 23 shows the second state, FIG. 24 shows the third state, and FIG. Figure 25 is the fourth
It shows the status of. 10, 50...fixed element, 30...movable element,
60... Close contact member, 70... Holding member, 80
... Fixing member, 90 ... Drive source, 12, 32,
52... Hole, 14, 54... Notch, 34...
Hole, 36... Connection member, P ₁ , P ₂ , P ₃ , P
₄ , P ₁₁ , P ₁₂ , P ₂₁ , P ₂₂ , P ₃₁ ,
P ₃₂ , P ₄₁ , P ₄₂ , P ₅₁ , P ₅₂ , P _5
3 , _P54 , _P55 , _P56 , _P13 , _P10 ,
_P23 , _P20 , _P33 , _P30 , _P43 , _P4
0 , 16, 18, 22, 24, 26, 28, 38
,42,44,56,57,58,62,63,
64, 66, Q ₁ , Q ₂ , Q ₁₁ , Q ₂₁ , Q _1
0 , Q ₁₃ , Q ₁₄ , Q ₂₀ , Q ₂₃ , Q ₃ , Q
₄ ... passage, 92... axis, 94, 95... disc,
71...Screw part, 61...Knob, 62...Fixing screw, 63...Fixing tool, 64...Spring, 6
5... Holder, 66... Threaded part, r ₁ , r ₂ , r
₃ ... Radius, O... Center, 10a, 30a, 30
b, 50a... Polished surface, 101, 102, 105
,110,113,120,123,130,1
33,140,143...Piping, 102a...Thin tube, _C1 , _C2 , _C3 , _C4 , _C5 ...Syringe unit, _C6 ...Diluent chamber, _C11 , C
₁₂ , C ₁₃ , C ₁₄ ... sample chamber unit, C ₁₅ ... drain chamber, 150 ... sample container, 152 ... sample, 154 ... sealing plug, F ... force, 204 ... element in resting state ,200,20
2...Movable element.

Claims (1)

[Claims for Utility Model Registration] Two fixed elements 10, 50 that are always in a stationary state
and one movable element 30 which is sandwiched between the fixed elements and can be moved by a certain amount with respect to the fixed elements;
A fixing member 80 for fixing the fixed element, a holding member 70 for arranging and holding the fixed element and the movable element at predetermined positions, and a close contact member 60 for bringing the fixed element and the movable element into close contact with each other. and a driving source 90 that is connected to the movable element and moves the movable element by a certain amount. n sets of quantitative passages forming pairs having a volume are provided, and the n sets of quantitative passages have a volume of n.
It consists of n mutually independent first metering passages and another n mutually independent second metering passages, and is connected to one or both of the two fixing elements, or one end to one of the fixing elements. (n-1) first connecting passages are provided with the other end disposed on the other fixing element, and the first connecting passages are provided with one or both of the two fixing elements, or with one end disposed on the other fixing element. (n-1) second connecting passages are provided with their ends disposed in the other fixing element, and one first suction passage P ₁ is provided in either or both of the two fixing elements.
, one second suction passage _P2 , and one first
supply passage P ₃ and one second supply passage P
₄ , and either or both of the two fixing elements are provided with a number of dilution passages in the range of n to 2n, and either or both of the two fixing elements are provided with dilution passages; A number of transfer passages within a range of n to 2n are provided, and the movable element 30
(a) With the first suction passage _P1 and the first supply passage _P3 at both ends, the first metering passage becomes the first By alternately passing one connecting passage, these passages are connected in series to form one passage,
Each of the second quantitative passages is sandwiched between each of the n dilution passages and the n transfer passages, so that the passages are connected in series to form n passages. , the first state, and (b) the second suction passage _P2 and the second supply passage _P4 are at both ends, and the second quantitative passages alternately pass through the second connection passages. By this, these passages are connected in series to form one passage,
and each of the first quantitative passages is sandwiched between each of the n dilution passages and the n transfer passages, so that the respective passages are connected in series to form n passages. a second state, and further includes one fixing element 10 having three passages 18, 24, 2 passing through it.
6, and two of these passages 18,
24 and a first
Two hollow loop-shaped passages 16, 2 connecting the supply passage _P3 and the second supply passage _P4 , respectively.
2, and groove-shaped passages 38 are provided on the surface of the movable element 30 on the fixed element 10 side, and these passages are connected in series as shown in the following (a) or (b) by movement of the movable element. A sample metering valve characterized by: (a) In the first state, the first supply passage P ₃ ,
Passage 16, Passage 18, Passage 38, Passage 26. (b) In the second state, the second supply passage P ₄ ,
Passage 22, Passage 24, Passage 38, Passage 26.