Sample injection column position integrated valve

Abstract

The utility model discloses a sampling column position integrated valve, which relates to the technical field of column position valves, and comprises an external stator and a valve core rotor, the upper surface of the external stator is provided with a counter bore I, a counter bore II, a counter bore III, a counter bore IV, a counter bore V, a counter bore VI and a counter bore VII; a first strip-shaped groove, a second strip-shaped groove, a second communicating hole, a third communicating hole, a fourth communicating hole, a sixth communicating hole and a seventh communicating hole are formed in the lower surface of the external stator, and a first communicating hole and a fifth communicating hole are formed in the first strip-shaped groove and the second strip-shaped groove correspondingly. An arc-shaped groove I, an arc-shaped groove II, a strip-shaped groove III, an arc-shaped groove III and an arc-shaped groove IV are formed in the upper surface of the valve core rotor; through the cooperation of the external stator and the valve core rotor, the functions of a sample injection valve and a column position valve can be realized at the same time, the number of valves is reduced, the reliability is improved, the cost is reduced, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of column valve, especially to a sample injection column position integrated valve. BACKGROUND

[0002] Chromatographic analysis separation technology is widely used in medicine and health, disease monitoring, livestock quarantine, food hygiene and safety, environmental monitoring and other industrial and agricultural quality detection, and is most commonly used in various preparation and purification. The column valve is one of the key components of the liquid column position of the chromatographic instrument, especially in the field of preparation and purification or protein chromatography. The sample injection valve is used to send the sample into the chromatographic column flow phase controlled and connected by the column valve of high-pressure liquid flow or to flush different components or to switch between multiple separation systems. The sample injection valve and the column valve are used as important components of the chromatographic instrument device. If the two can be combined into one, the reliability, efficiency, and cost of the system will be greatly improved.

[0003] Therefore, the sample injection column position integrated valve solves the above problems. SUMMARY

[0004] The utility model provides a kind of sample injection column position integrated valve to solve the above technical problems.

[0005] To solve the above technical problems, the utility model provides a kind of sample injection column position integrated valve, including external stator and valve core rotor, the external stator upper surface is equipped with counterbore one, counterbore two, counterbore three, counterbore four, counterbore five, counterbore six and counterbore seven, the external stator lower surface is equipped with strip slot one, strip slot two, communication hole two, communication hole three, communication hole four, communication hole six and communication hole seven, the strip slot one and strip slot two inside are equipped with communication hole one and communication hole five respectively, the valve core rotor upper surface is equipped with arc slot one, arc slot two, strip slot three, arc slot three and arc slot four.

[0006] Preferably, the counterbore one, the counterbore two, the counterbore three, the counterbore four, the counterbore five, the counterbore six and the counterbore seven are communicated with the communication hole one, the communication hole two, the communication hole three, the communication hole four, the communication hole five, the communication hole six and the communication hole seven respectively.

[0007] Preferably, the valve core rotor is adaptively connected at the bottom of the external stator.

[0008] Compared with the related art, the sample injection column position integrated valve provided by the utility model has the following beneficial effects:

[0009] Through the cooperation of the external stator and the valve core rotor, the functions of the sample injection valve and the column valve can be realized at the same time, the number of valves is reduced, the reliability is improved, the cost is reduced, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the first perspective view of the external stator of the utility model;

[0011] Figure 2 It is the second perspective view of the external stator of the utility model;

[0012] Figure 3 It is the structure schematic diagram of the valve core rotor of the utility model;

[0013] Figure 4 It is the first working state schematic diagram of the utility model;

[0014] Figure 5 It is the second working state schematic diagram of the utility model;

[0015] Figure 6 It is the third working state schematic diagram of the utility model;

[0016] Figure 7 It is the fourth working state schematic diagram of the utility model;

[0017] Figure 8 It is the fifth working state schematic diagram of the utility model.

[0018] Reference signs in the drawing: 1, external stator, 11, counterbore one, 111, communication hole one, 12, counterbore two, 121, communication hole two, 13, counterbore three, 131, communication hole three, 14, counterbore four, 141, communication hole four, 15, counterbore five, 151, communication hole five, 16, counterbore six, 161, communication hole six, 17, counterbore seven, 171, communication hole seven, 18, strip-shaped groove one, 19, strip-shaped groove two, 2, valve core rotor, 21, arc-shaped groove one, 22, arc-shaped groove two, 23, strip-shaped groove three, 24, arc-shaped groove three, 25, arc-shaped groove four. DETAILED DESCRIPTION

[0019] Embodiment, by Figures 1-3The utility model provides external stator 1 and valve core rotor 2, the valve core rotor 2 is connected in the bottom of external stator 1, the upper surface of external stator 1 is equipped with counterbore one 11, counterbore two 12, counterbore three 13, counterbore four 14, counterbore five 15, counterbore six 16 and counterbore seven 17, the lower surface of external stator 1 is equipped with strip groove one 18, strip groove two 19, communicating hole two 121, communicating hole three 131, communicating hole four 141, communicating hole six 161 and communicating hole seven 171, the inside of strip groove one 18 and strip groove two 19 is equipped with communicating hole one 111 and communicating hole five 151 respectively, the upper surface of valve core rotor 2 is equipped with arc groove one 21, arc groove two 22, strip groove three 23, arc groove three 24 and arc groove four 25. Through the cooperation of external stator 1 and valve core rotor 2, the merging function of sample valve and column valve can be realized, and quantitative ring sampling and chromatographic column positive flushing, back flushing and bypass function can be realized.

[0020] The counterbore one 11, counterbore two 12, counterbore three 13, counterbore four 14, counterbore five 15, counterbore six 16 and counterbore seven 17 are communicated with communicating hole one 111, communicating hole two 121, communicating hole three 131, communicating hole four 141, communicating hole five 151, communicating hole six 161 and communicating hole seven 171 respectively.

[0021] Various flow path functions can be realized by rotating valve core rotor, and five working states in the reference Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 are bypass, positive flushing over column manual sampling (Downflow+manual load), back flushing over column (Upflow), pump washing and sampling positive flushing over column (Inject+Downflow) respectively.

[0022] Working principle:

[0023] In use, by rotating the valve rotor 2, the arc-shaped groove one 21, the arc-shaped groove two 22, the strip-shaped groove three 23, the arc-shaped groove three 24 and the arc-shaped groove four 25 on the surface of the valve rotor 2 are communicated with the strip-shaped groove one 18, the strip-shaped groove two 19, the communication hole one 111, the communication hole two 121, the communication hole three 131, the communication hole four 141, the communication hole five 151, the communication hole six 161 and the communication hole seven 171 on the inner surface of the back of the external stator 1, and the through-passage of the flow path is realized by combining the sink hole one 11, the sink hole two 12, the sink hole three 13, the sink hole four 14, the sink hole five 15, the sink hole six 16 and the sink hole seven 17 on the outside of the external stator 1 with the pipeline. At different angles, various flow path functions are realized, which are respectively Bypass, Downflow+manual load, Upflow, pump wash, Inject+Downflow, respectively corresponding to Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 .

Claims

1. A sample introduction column position integrated valve, characterized by: It includes external stator (1) and valve core rotor (2), the upper surface of external stator (1) is provided with counterbore one (11), counterbore two (12), counterbore three (13), counterbore four (14), counterbore five (15), counterbore six (16) and counterbore seven (17), the lower surface of external stator (1) is provided with strip slot one (18), strip slot two (19), communication hole two (121), communication hole three (131), communication hole four (141), communication hole six (161) and communication hole seven (171), the inner part of strip slot one (18) and strip slot two (19) is respectively provided with communication hole one (111) and communication hole five (151), the upper surface of valve core rotor (2) is provided with arc slot one (21), arc slot two (22), strip slot three (23), arc slot three (24) and arc slot four (25).

2. The valve according to claim 1, wherein The counterbore one (11), counterbore two (12), counterbore three (13), counterbore four (14), counterbore five (15), counterbore six (16) and counterbore seven (17) are communicated with communication hole one (111), communication hole two (121), communication hole three (131), communication hole four (141), communication hole five (151), communication hole six (161) and communication hole seven (171) respectively.

3. The valve according to claim 1, wherein The valve core rotor (2) is adaptively connected at the bottom of external stator (1).

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