Chromatographic column with leakage-proof function

Abstract

The utility model discloses a chromatographic column with a leak-proof function, which relates to the technical field of chromatographic columns and comprises a chromatographic column body, one end of the chromatographic column body is provided with a liquid inlet pipeline, the other end of the chromatographic column body is connected with a liquid outlet pipeline, two ends of the chromatographic column body are provided with connecting ends, and leak-proof mechanisms are arranged at the connecting ends. The leak-proof mechanism comprises a sealed cabin fixedly mounted on the chromatographic column body, an absorption sponge is arranged in the sealed cabin, an extrusion plate is movably mounted in the sealed cabin, a push rod is fixedly mounted on the extrusion plate, a detection port is fixedly mounted at the bottom of the sealed cabin, and a detection mechanism is fixedly mounted in the detection port; an in-out through hole is formed in the side wall of the sealed cabin, and a pressing cap is fixedly installed at the tail end of the pushing rod. According to the chromatographic column with the leakage-proof function, the leakage-proof mechanism can prevent to-be-detected liquid from leaking into a detection instrument, and the leakage-proof mechanism is matched with the detection mechanism for use, so that whether leakage exists at the connecting end can be detected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of chromatographic column, specifically a chromatographic column with leakproof function. BACKGROUND

[0002] Liquid chromatographic column is an important tool for liquid chromatographic analysis, its principle is to use sample solution to interact with column filler surface in the process of liquid phase flow in the column, so as to realize separation and detection. The filler of liquid chromatographic column is usually solid particles, which has certain surface properties and can interact with sample molecules such as adsorption, chelation and ion exchange. According to the different fillers, liquid chromatographic column can be divided into normal phase column, reversed phase column, ion exchange column and other types. Among them, reversed phase column is the most widely used liquid chromatographic column. Liquid chromatographic column has high separation capacity, wide application range, high sensitivity and high selectivity.

[0003] The connecting end of the two ends of the chromatographic column is sealed by a special sealing ring. These sealing rings play a crucial role in the chromatographic analysis process, they ensure that the liquid inside the chromatographic column does not leak into the external environment. However, due to long-term use and constant mechanical pressure, these sealing rings will gradually age. Once the sealing ring ages, its sealing performance will decrease, which may cause the liquid in the chromatographic column to slowly penetrate out. This penetrating liquid not only pollutes the chromatographic column itself, but also may pollute the connected detection instrument, UTILITY MODEL CONTENT

[0004] The utility model aims at providing a chromatographic column with leakproof function to solve the problem of easy leakage of sealing ring in prior art.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a chromatographic column with leakproof function, including chromatographic column body, one end of chromatographic column body is equipped with liquid inlet pipeline, the other end of chromatographic column body is connected with liquid outlet pipeline, both ends of chromatographic column body are equipped with connecting end, connecting end is equipped with leakproof mechanism, leakproof mechanism includes sealing cabin body fixedly installed on chromatographic column body, absorbing sponge is equipped in sealing cabin body, extrusion plate is movably installed in sealing cabin body, push rod is fixedly installed on extrusion plate, detection port is fixedly installed on the bottom of sealing cabin body, detection mechanism is fixedly installed in detection port.

[0006] Preferably, the side wall of the sealing cabin body is provided with an access hole, and the end of the push rod is fixedly provided with a pressure cap.

[0007] Preferably, the extrusion plate is provided with a positioning slot, the push rod is installed on the extrusion plate through the positioning slot, and the liquid inlet pipeline and the liquid outlet pipeline are connected to the two ends of the chromatographic column body through the connecting end heads.

[0008] Preferably, the push rod extends out of the sealed cabin through an access hole, a sealing ring is arranged in the access hole, the extrusion plate is movably installed in the sealed cabin through the push rod, and the detection mechanism is connected to the sealed cabin through a detection port.

[0009] Preferably, the detection mechanism comprises a detection tank connected to the detection port, a docking port is fixedly installed at the upper end of the detection tank, an installation gap is formed in the side wall of the detection tank, an alarm indicator is fixedly installed in the installation gap, a liquid level switch is fixedly installed at the bottom of the detection tank, and control wires are arranged between the liquid level switch and the alarm indicator.

[0010] Preferably, the docking port is provided with threads, and the docking port is connected to the detection port through the threads.

[0011] Preferably, the detection tank is installed at the bottom of the sealed cabin through the detection port, the alarm indicator is installed on the detection tank through the installation gap, and the liquid level switch and the liquid level switch are connected together through the control wires, and the control wires are connected to an external power supply at both ends.

[0012] Compared with the prior art, the application has the following beneficial effects:

[0013] 1. In the experiment, if liquid leaks from the connecting port, the sponge absorption device will immediately absorb the leaked liquid, effectively preventing the measured liquid from seeping into the detection instrument, and after the experiment is completed, by applying pressure to the pressure cap, the push rod can be moved forward, the forward movement of the push rod will drive the extrusion plate to move forward synchronously, and then the pressure on the absorption sponge is applied to squeeze out the liquid in the sponge.

[0014] 2. When leakage occurs at the connecting end head, the liquid in the sponge is squeezed out, and then flows into the detection tank, causing the liquid level in the tank to rise, and after the liquid level switch senses the rising liquid level, the alarm system is triggered, causing the alarm indicator to light up, thereby warning the user that there is leakage at the connecting end head, otherwise, if no leakage occurs at the connecting end head, no liquid flows into the detection tank, the liquid level remains unchanged, and the alarm indicator remains off, thereby indicating to the user that no leakage occurs at the connecting end head. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2A partial structure schematic view of the utility model;

[0017] Figure 3 A leakage prevention mechanism schematic view of the utility model;

[0018] Figure 4 A detection mechanism schematic view of the utility model.

[0019] The figure mark: 1, liquid inlet pipeline; 2, connecting end head; 3, chromatographic column body; 4, liquid outlet pipeline; 5, leakage prevention mechanism; 501, sealed cabin body; 502, absorption sponge; 503, extrusion plate; 504, push rod; 505, pressure cap; 506, access through-hole; 507, detection port; 6, detection mechanism; 601, detection tank body; 602, butt joint; 603, liquid level switch; 604, control wire; 605, alarm indicator light; 606, installation gap. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0021] As Figure 1 And Figure 2 The utility model provides a chromatographic column with leakage prevention function's technical scheme, including chromatographic column body 3, chromatographic column body 3 one end is equipped with liquid inlet pipeline 1, chromatographic column body 3 other end is connected with liquid outlet pipeline 4, and chromatographic column body 3 both ends are equipped with connecting end head 2, and the place at connecting end head 2 is equipped with leakage prevention mechanism 5, and leakage prevention mechanism 5 includes sealed cabin body 501 fixedly installed on chromatographic column body 3, and absorption sponge 502 is equipped in sealed cabin body 501, leakage prevention mechanism 5 can prevent the leakage of the liquid to be measured into the detection instrument, and leakage prevention mechanism 5 is used in cooperation with detection mechanism 6, and whether the leakage exists at connecting end head 2 can be detected.

[0022] As Figure 2 And Figure 3 Leakage prevention mechanism 5 includes sealed cabin body 501 fixedly installed on chromatographic column body 3, and absorption sponge 502 is equipped in sealed cabin body 501, and extrusion plate 503 is movably installed in sealed cabin body 501, and push rod 504 is fixedly installed on extrusion plate 503, and detection port 507 is fixedly installed on the bottom of sealed cabin body 501, and access through-hole 506 is formed in the side wall of sealed cabin body 501, and pressure cap 505 is fixedly installed on the end of push rod 504, and positioning groove is formed in extrusion plate 503, and push rod 504 is installed on extrusion plate 503 through the positioning groove.

[0023] Specifically, in the liquid detection process, if it is found that there is liquid leakage from the position of the connecting end 2, the liquid will be absorbed by the specially designed absorption sponge 502. Such a design is to ensure that the liquid to be detected will not further penetrate into the internal part of the detection instrument, thereby avoiding potential damage to the detection equipment. After the entire detection process is completed, the operator can perform a simple action, i.e. pressing the pressure cap 505. This action will trigger a series of mechanical reactions: first, after the pressure cap 505 is pressed, it will drive the push rod 504 to move forward. During the forward movement of the push rod 504, it will further push the extrusion plate 503 to move forward. This forward movement of the extrusion plate 503 will eventually cause the absorption sponge 502 to be extruded. Through this extrusion, the liquid previously absorbed by the absorption sponge 502 will be extruded and guided into the detection port 507 for further detection analysis.

[0024] As shown in Figure 2 and Figure 4 , the detection mechanism 6 includes a detection tank 601 connected to the detection port 507, the detection tank 601 has a docking port 602 fixedly installed at the upper end, a mounting gap 606 is formed in the side wall of the detection tank 601, an alarm indicator 605 is fixedly installed in the mounting gap 606, a liquid level switch 603 is fixedly installed at the bottom of the detection tank 601, and a control wire 604 is arranged between the liquid level switch 603 and the alarm indicator 605. The docking port 602 is provided with a thread, and the docking port 602 is connected in the detection port 507 through the thread.

[0025] Specifically, if leakage occurs at the position of the connecting end 2, the liquid absorbed in the absorption sponge 502 can be released by extruding the absorption sponge 502, and the liquid will flow to the detection tank 601. As the liquid continues to flow in, the liquid level in the detection tank 601 will gradually rise. When the liquid level reaches a certain height, the liquid level switch 603 will sense the change and trigger the corresponding mechanism, thereby causing the alarm indicator 605 to be activated and lit, sending a clear signal to the user that there is a leakage problem at the position of the connecting end 2. Conversely, if there is no leakage at the position of the connecting end 2, no liquid will flow into the detection tank 601, and the liquid level switch 603 will not be triggered, so the alarm indicator 605 will remain off, which conveys to the user that there is no leakage at the position of the connecting end 2 at present.

[0026] Working principle: first through the liquid pipeline 1 to be detected liquid delivery to the chromatographic column body 3 in the detection, detection process once there is liquid from the connecting end 2 leakage will be absorbed by the sponge 502 absorption, prevent the liquid to be detected leakage into the detection instrument, after the detection can press the pressure cap 505, press the pressure cap 505 after it will drive the push rod 504 forward movement, the push rod 504 forward movement will drive the extrusion plate 503 forward movement, extrusion plate 503 forward movement will extrude the absorption of sponge 502, once the connecting end 2 appear leakage situation, extrusion absorption of sponge 502 after its internal liquid will be discharged, the absorption of sponge 502 discharged liquid will flow to the detection tank 601, along with the liquid level in the detection tank 601 rising liquid level switch 603 will control the alarm indicator light 605 open, so as to remind the user connecting end 2 appear seepage situation, connecting end 2 does not appear leakage situation will not have liquid flow into the detection tank 601, make the alarm indicator light 605 is in the extinguishing state, tell the user connecting end 2 does not appear seepage situation.

[0027] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present application being defined by the appended claims rather than the above description, and it is intended to embrace all changes and modifications that fall within the meaning and scope of the equivalent elements of the claims. Any reference signs in the claims should not be construed as limiting the claims to which they belong.

Claims

1. A chromatographic column with leakage-proof function, comprising a chromatographic column body (3), one end of the chromatographic column body (3) is provided with a liquid inlet pipeline (1), the other end of the chromatographic column body (3) is connected with a liquid outlet pipeline (4), and both ends of the chromatographic column body (3) are provided with connecting end heads (2), characterized in that: The connecting end (2) is provided with a leakage prevention mechanism (5), the leakage prevention mechanism (5) comprises a sealed cabin body (501) fixedly installed on the chromatographic column body (3), an absorbing sponge (502) is arranged in the sealed cabin body (501), an extrusion plate (503) is movably installed in the sealed cabin body (501), a push rod (504) is fixedly installed on the extrusion plate (503), a detection port (507) is fixedly installed at the bottom of the sealed cabin body (501), and a detection mechanism (6) is fixedly installed in the detection port (507).

2. The chromatographic column with a leak-proof function according to claim 1, characterized in that: A through hole (506) is formed in the side wall of the sealed cabin body (501), and a pressing cap (505) is fixedly installed at the end of the push rod (504).

3. The chromatographic column with leak-proof function according to claim 2, characterized in that: A positioning groove is formed in the extrusion plate (503), the push rod (504) is installed on the extrusion plate (503) through the positioning groove, and the liquid inlet pipeline (1) and the liquid outlet pipeline (4) are connected to the chromatographic column body (3) at two ends through the connecting end (2).

4. The chromatographic column with leak-proof function according to claim 3, characterized in that: The push rod (504) extends out of the sealed cabin body (501) through the through hole (506), a sealing ring is arranged in the through hole (506), the extrusion plate (503) is movably installed in the sealed cabin body (501) through the push rod (504), and the detection mechanism (6) is connected to the sealed cabin body (501) through the detection port (507).

5. The chromatographic column with leak-proof function according to claim 4, characterized in that: The detection mechanism (6) comprises a detection tank (601) connected to the detection port (507), a docking port (602) is fixedly installed at the upper end of the detection tank (601), an installation gap (606) is formed in the side wall of the detection tank (601), an alarm indicator (605) is fixedly installed in the installation gap (606), a liquid level switch (603) is fixedly installed at the bottom of the detection tank (601), and control wires (604) are arranged between the liquid level switch (603) and the alarm indicator (605).

6. The chromatographic column with leak-proof function according to claim 5, characterized in that: The docking port (602) is provided with threads, and the docking port (602) is connected to the detection port (507) through threads.

7. The chromatographic column with leak-proof function according to claim 5, characterized in that: The detection tank (601) is installed at the bottom of the sealed cabin body (501) through the detection port (507), the alarm indicator (605) is installed on the detection tank (601) through the installation gap (606), the liquid level switch (603) and the liquid level switch (603) are connected together through the control wires (604), and the control wires (604) are connected to an external power supply at both ends.

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