CN216395344U - Multifunctional chromatographic column liquid adding device - Google Patents
Multifunctional chromatographic column liquid adding device Download PDFInfo
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- CN216395344U CN216395344U CN202122957384.4U CN202122957384U CN216395344U CN 216395344 U CN216395344 U CN 216395344U CN 202122957384 U CN202122957384 U CN 202122957384U CN 216395344 U CN216395344 U CN 216395344U
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- chromatographic column
- interface
- connecting pipe
- adding device
- liquid storage
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Abstract
The utility model relates to a multifunctional chromatographic column liquid adding device, which comprises a chromatographic column with a feed port, a glass piston inserted on the feed port of the chromatographic column, a first connecting pipe, a liquid storage bottle, a second connecting pipe and a gas pump, wherein one end part of the first connecting pipe is connected with the glass piston, the liquid storage bottle is provided with a first interface, a second interface and a third interface, the other end part of the first connecting pipe is movably inserted into the liquid storage bottle through the first interface, the two end parts of the second connecting pipe are respectively connected with the second interface and the gas pump, and an exhaust valve is detachably arranged on the third interface of the liquid storage bottle. The elution solvent is directly pressed into the chromatographic column by pressurization, a liquid storage ball and a funnel do not need to be arranged at the upper end of the chromatographic column for pouring liquid, the operation is simple and convenient, and the liquid adding device is in a sealed state during use, so that the volatilization of the elution solvent is avoided, and the environment pollution is avoided. In addition, can turn into constant voltage pressurization chromatographic column through simple operation, raise the efficiency, realize a multi-functional chromatographic column liquid feeding device.
Description
Technical Field
The utility model belongs to the technical field of chromatographic columns in laboratories, and particularly relates to a multifunctional chromatographic column liquid adding device.
Background
When a chromatographic column is used in a laboratory at present, a liquid storage ball b is usually connected to the upper end of a chromatographic column a, a funnel c is placed on the liquid storage ball b, and a developing solvent is added into the chromatographic column a through the funnel c, the structure is shown in figure 1, the whole chromatographic column device is high in height, and the operation is not easy when an elution solvent is added; a large amount of solvent is stored in the liquid storage ball to increase the bearing of the chromatographic column, so that the chromatographic column is easy to damage; the solvent is stored in an open way and is easy to volatilize, thus causing the problems of environmental pollution, physical injury of experimenters and the like. And the laboratory chromatographic column is usually a normal pressure chromatographic column, and the elution solvent has slow flow and longer elution time during elution.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide the multifunctional chromatographic column liquid adding device which is simple and convenient to operate and high in elution efficiency.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a multi-functional chromatographic column liquid feeding device, is including the chromatographic column that has the feed inlet, the liquid feeding device still including inserting and establishing glass piston, a tip on the feed inlet of chromatographic column with first connecting pipe, stock solution bottle, second connecting pipe that the glass piston links to each other and be used for to the gaseous gas pump of stock solution bottle conveyor gas, be equipped with on the stock solution bottle respectively with first interface, second interface and the third interface of the inside intercommunication of stock solution bottle, another tip of first connecting pipe by first interface movably inserts in the stock solution bottle and stretch into below the liquid level in the stock solution bottle or be located on the liquid level, the both ends of second connecting pipe respectively with second interface and gas pump link to each other, detachably sets up discharge valve on the third interface of stock solution bottle.
According to some embodiments of the utility model, the third interface is provided with an extension portion which is folded outwards and formed in an extending manner, the lower portion of the exhaust valve is provided with a first protruding portion which protrudes outwards along the circumferential direction of the exhaust valve, and a connecting clip for clamping the exhaust valve and the third interface is arranged between the extension portion and the first protruding portion.
Furthermore, the exhaust valve adopts glass products, the inner side surface of the third interface is a frosted surface, the outer surface of the exhaust valve contacting with the third interface is a frosted surface, and vaseline is coated between the exhaust valve and the third interface.
According to some implementation aspects of the utility model, a one-way valve is arranged between the second connecting pipe and the second interface or in the second connecting pipe.
According to some embodiments of the utility model, the glass piston is a glass piston with a regulating valve.
According to some implementation aspects of the utility model, the upper end of the chromatography column is provided with a second bulge part which bulges outwards, the glass piston is provided with a third bulge part which bulges outwards, and a clamping part for clamping the glass piston and the chromatography column is arranged between the second bulge part and the third bulge part.
Further, the clamping piece is a rubber band.
According to some implementation aspects of the utility model, the inner side surface of the feeding hole of the chromatography column is a frosted surface, the outer surface of the glass piston, which is in contact with the feeding hole, is a frosted surface, and vaseline is coated between the glass piston and the feeding hole.
According to some embodiments of the utility model, a sealing ring is arranged between the first connecting pipe and the first interface.
According to some embodiments of the utility model, the first connection pipe is a rubber hose; and/or the second connecting pipe is a hose.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
the liquid adding device directly presses the elution solvent into the chromatographic column by pressurization, a liquid storage ball and a funnel do not need to be arranged at the upper end of the chromatographic column for pouring liquid, the operation is simple and convenient, and the liquid adding device is in a sealed state during use, so that the volatilization of the elution solvent is avoided, and the environment pollution is avoided. In addition, can turn into constant voltage pressurization chromatographic column through simple operation, raise the efficiency, realize a multi-functional chromatographic column liquid feeding device.
Drawings
FIG. 1 is a schematic diagram of a conventional chromatographic column in a liquid feeding state;
FIG. 2 is a schematic structural diagram of a multifunctional chromatographic column filling device according to an embodiment of the present invention;
FIG. 3 is an enlarged view of the point A in FIG. 2;
in the figure: 1. a chromatography column; 1a, a second boss; 2. a first connecting pipe; 3. a liquid storage bottle; 4. a second connecting pipe; 5. a one-way valve; 6. a gas pump; 7. an exhaust valve; 8. a connecting clip; 9. a glass piston; 9a, a third boss.
Detailed Description
The utility model is further described with reference to the drawings and the specific embodiments in the following description:
referring to fig. 2-3, the multifunctional chromatographic column liquid adding device comprises a chromatographic column 1 with a feeding port, a glass piston 9 inserted on the feeding port of the chromatographic column 1, a first connecting pipe 2 with one end connected with the glass piston 9, a liquid storage bottle 3, a second connecting pipe 4 and a gas pump 6 for delivering gas to the liquid storage bottle 3, wherein the liquid storage bottle 3 is provided with a first interface, a second interface and a third interface which are respectively communicated with the inside of the liquid storage bottle 3, the other end of the first connecting pipe 2 is movably inserted into the liquid storage bottle 3 from the first interface of the liquid storage bottle 3 and extends into the liquid storage bottle 3 below the liquid level or above the liquid level, the two ends of the second connecting pipe 4 are respectively connected with the second interface and the gas pump 6, a vent valve 7 is detachably arranged on the third interface of the liquid storage bottle 3, and the gas is delivered into the liquid storage bottle 3 through the gas pump 6 to increase the pressure in the liquid storage bottle 3, the liquid in the liquid storage bottle 3 enters the chromatographic column 1 through the first connecting pipe 2 under the action of air pressure, a liquid storage ball does not need to be placed on the chromatographic column 1, the elution solvent is prevented from being poured from a high position manually, and the operation is simple and labor-saving; in addition, the first connecting pipe 2 can be separated from the liquid level in the liquid storage bottle 3 to be positioned above the liquid level, so that a constant-pressure pressurized chromatographic column can be obtained, and the elution speed of the chromatographic column is improved.
The third interface of stock solution bottle 3 can be used to the liquid feeding of stock solution bottle 3, and the third interface is equipped with the extension that turns over to the evagination and extend the formation, and discharge valve 7's lower part has along its circumferencial direction outside bellied first bellying, sets up between extension and the first bellying to be used for the connecting clamp 8 that presss from both sides discharge valve 7 and third interface clamp tightly, when avoiding gas pump 6 to pressurize stock solution bottle 3, dashes discharge valve 7 open. In this example, the exhaust valve 7 is made of glass, the inner side surface of the third interface is a frosted surface, the outer surface of the exhaust valve 7 contacting with the third interface is a frosted surface, and vaseline is coated between the exhaust valve 7 and the third interface to play a role in sealing and prevent air leakage.
Set up check valve 5 on the second interface of stock solution bottle 3, second connecting pipe 4 is connected on check valve 5, and under the condition of closing gas pump 6, the gas can not flow out in the stock solution bottle 3, can keep the pressure in the stock solution bottle 3, the energy saving.
The glass piston 9 is a glass piston with an adjusting valve for adjusting the amount of the eluting solvent entering the chromatography column 1.
Referring to fig. 3, the upper end of the chromatographic column 1 is provided with a second convex part 1a protruding outwards, the glass piston 9 is provided with a third convex part 9a protruding outwards, and a clamping member for clamping the glass piston 9 and the chromatographic column 1 is arranged between the second convex part 1a and the third convex part 9a to prevent the glass piston 9 from being flushed away by pressurization. The clamping piece can be a rubber band, and the second protruding part 1a and the third protruding part 9a are shaped like a horn.
The inner side surface of the feeding hole of the chromatographic column 1 is a frosted surface, the outer surface of the glass piston 9, which is in contact with the feeding hole, is a frosted surface, and vaseline is coated between the glass piston 9 and the feeding hole to play a role in sealing and prevent air leakage.
In this example, a sealing ring is arranged between the first connecting tube 2 and the first interface of the liquid storage bottle 3, and the first connecting tube 2 can be movably inserted on the sealing ring, when the end part of the first connecting tube 2 extends below the liquid level of the liquid storage bottle 3, the eluting solvent in the liquid storage bottle 3 can be pressed into the chromatographic column 1; when the end of the first connecting pipe 2 is positioned above the liquid level of the liquid storage bottle 3, the chromatographic column 1 can be pressurized and converted into a constant-pressure pressurized chromatographic column, and the use function of the chromatographic column 1 is diversified.
The first connecting pipe 2 is a corrosion-resistant rubber hose, and the second connecting pipe 4 is a hose.
The operating principle of the chromatographic column liquid adding device is as follows:
when the chromatographic column liquid adding device is used, sufficient elution solvent is added into the liquid storage bottle 3 from the third interface of the liquid storage bottle 3 and does not pass through the first connecting pipe 2, then the exhaust valve 7 is inserted into the third interface, and the third interface and the exhaust valve 7 are clamped by the connecting clamp 8.
The regulating valve on the glass piston 9 is opened, the gas pump 6 is started, and when the pressure in the liquid storage bottle 3 is enough to press the elution solvent into the chromatographic column 1, the gas pump 6 is closed, so that the regulating valve on the glass piston 9 can be regulated to control the dropping speed of the elution solvent. When the elution does not need to be dripped with an elution solvent, the exhaust valve 7 is opened to release the gas in the liquid storage bottle 3. When the chromatographic column 1 needs to be pressurized to increase the elution speed, the first connecting tube 2 is pulled out of the liquid level of the elution solvent.
In conclusion, the chromatographic column liquid adding device is simple and convenient to add the elution solvent, the elution solvent does not need to be poured into the chromatographic column from a high position, and the operation is safe. When the device is used, the whole device is in a sealed state, so that the environmental pollution and the personal injury caused by volatilization of the elution solvent are avoided, and the consumption of the elution solvent is saved. And the column can be converted into a constant-pressure pressurized chromatographic column after simple operation, so that the elution speed is increased, the working efficiency is improved, and the use functions are diversified. In addition, the setting of check valve 5, under the circumstances of closing gas pump 6, can keep the pressure in the stock solution bottle 3, realize continuously impressing the elution solvent in the stock solution bottle 3 in chromatographic column 1, need not that the experimenter is on duty always, the energy saving, raise the efficiency.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the utility model, and not to limit the scope of the utility model, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a multi-functional chromatographic column liquid feeding device, is including the chromatographic column that has the feed inlet, its characterized in that: the liquid adding device further comprises a glass piston inserted into a feed port of the chromatographic column, a first connecting pipe, a liquid storage bottle, a second connecting pipe and a gas pump, wherein one end of the glass piston is connected with the glass piston, the gas pump is used for conveying gas to the liquid storage bottle, the liquid storage bottle is provided with a first interface, a second interface and a third interface which are respectively communicated with the inside of the liquid storage bottle, the other end of the first connecting pipe is movably inserted into the liquid storage bottle through the first interface and extends into the liquid storage bottle below the liquid level or above the liquid level, the two ends of the second connecting pipe are respectively connected with the second interface and the gas pump, and an exhaust valve is detachably arranged on the third interface of the liquid storage bottle.
2. The multifunctional chromatographic column liquid adding device of claim 1, which is characterized in that: the third interface is provided with an extending part which is turned over outwards and extends to form, the lower part of the exhaust valve is provided with a first protruding part which protrudes outwards along the circumferential direction of the exhaust valve, and a connecting clamp used for clamping the exhaust valve and the third interface is arranged between the extending part and the first protruding part.
3. The multifunctional chromatographic column liquid adding device of claim 1 or 2, which is characterized in that: the exhaust valve adopts glass products, the medial surface of third interface is the frosting, the surface of exhaust valve and third interface contact is the frosting, coating vaseline between exhaust valve and the third interface.
4. The multifunctional chromatographic column liquid adding device of claim 1, which is characterized in that: and a one-way valve is arranged between the second connecting pipe and the second interface or in the second connecting pipe.
5. The multifunctional chromatographic column liquid adding device of claim 1, which is characterized in that: the glass piston is a glass piston with a regulating valve.
6. The multifunctional chromatographic column liquid adding device of claim 1 or 5, which is characterized in that: the upper end of chromatography post sets up outside bellied second bellying, be equipped with outside bellied third bellying on the glass piston, set up between second bellying, the third bellying and be used for with the chucking spare of glass piston, chromatography post chucking.
7. The multifunctional chromatographic column liquid adding device of claim 6, which is characterized in that: the clamping piece is a rubber band.
8. The multifunctional chromatographic column liquid adding device of claim 1 or 5, which is characterized in that: the inner side surface of the feed inlet of the chromatographic column is a frosted surface, the outer surface of the glass piston in contact with the feed inlet is a frosted surface, and vaseline is coated between the glass piston and the feed inlet.
9. The multifunctional chromatographic column liquid adding device of claim 1, which is characterized in that: and a sealing ring is arranged between the first connecting pipe and the first interface.
10. The multifunctional chromatographic column liquid adding device of claim 1, which is characterized in that: the first connecting pipe is a rubber hose; and/or the second connecting pipe is a hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122957384.4U CN216395344U (en) | 2021-11-25 | 2021-11-25 | Multifunctional chromatographic column liquid adding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122957384.4U CN216395344U (en) | 2021-11-25 | 2021-11-25 | Multifunctional chromatographic column liquid adding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216395344U true CN216395344U (en) | 2022-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122957384.4U Active CN216395344U (en) | 2021-11-25 | 2021-11-25 | Multifunctional chromatographic column liquid adding device |
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| Country | Link |
|---|---|
| CN (1) | CN216395344U (en) |
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2021
- 2021-11-25 CN CN202122957384.4U patent/CN216395344U/en active Active
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