Extraction column suitable for multi-element system separation device

Abstract

The utility model relates to the technical field of extraction columns, in particular to an extraction column suitable for a multi-element system separation device, which comprises an extraction pipe, the top of the extraction pipe is connected with an insertion column in a sliding manner, the top surface of the insertion column is connected with a first adapter through a pipeline, and the inside of the extraction pipe is connected with an adsorption pad in a sliding manner. The extraction device has the advantages that the depth of the connecting pipe inserted into the sleeve can be limited through the baffle, the first adapters are connected with an external hose, extraction operation can be performed, the top end and the bottom end of the extraction pipe are mounted in a sleeving manner, the extraction pipe is convenient to replace, and the extraction efficiency is improved. When liquid leakage occurs at the joint of the connecting pipe and the sleeve, the liquid can flow into the blocking ring, the blocking ring can block the liquid and prevent the liquid from flowing to the outside, the liquid can make contact with the induction electrode of the water sensor to trigger the buzzer, and real-time alarming can be conducted when liquid leakage occurs in the device operation process.

Description

Technical Field

[0001] This utility model relates to the field of extraction column technology, and in particular to an extraction column suitable for a multi-element system separation device. Background Technology

[0002] An extraction column is a sample pretreatment device developed from a chromatography column, used for extraction, separation, and concentration. It is mainly used for sample pretreatment of target compounds in various food, agricultural and livestock products, environmental samples, and biological samples. Solid-phase extraction technology has been widely used in many national standards (GB / T) and industry analytical standards. When a complex sample solution passes through the adsorbent in the extraction column, the adsorbent selectively retains the target compound and a small amount of components with similar properties through polar interactions, hydrophobic interactions, or ion exchange, while other components permeate through the column. Subsequently, another solvent system is used to selectively elute the target compound, thereby achieving the separation, purification, and enrichment of complex samples.

[0003] During the use of the extraction column, its output end is inserted into the drain pipe to discharge the extracted liquid. However, sometimes leakage occurs at the connection between the extraction column and the drain pipe, which seriously affects the extraction effect and separation accuracy. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this invention is to provide an extraction column suitable for a multi-element system separation device, in order to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.

[0006] To achieve the above objectives, one embodiment of this utility model provides an extraction column suitable for a multi-element system separation device, comprising an extraction tube, a plug-in column slidably connected to the top of the extraction tube, a first adapter connected to the top surface of the plug-in column via a pipe, an adsorption pad slidably connected inside the extraction tube, the adsorption pad corresponding vertically to the plug-in column, a connecting tube fixedly connected to the bottom of the extraction tube, a sleeve fitted onto the outer surface of the connecting tube, a second adapter fixedly connected to the bottom end of the sleeve, a threaded sleeve threadedly connected to the top end of the sleeve, and a support fixedly connected to the top end of the threaded sleeve. The ring includes a support ring slidably connected to a connecting pipe, a blocking ring fixedly connected to the top surface of the support ring, two symmetrically arranged L-shaped brackets slidably connected to the outer surface of the blocking ring, a spring fixedly connected to the outer side of each L-shaped bracket, a locking pin fixedly connected to the end of the spring away from the L-shaped bracket, the locking pin penetrating the L-shaped bracket and engaging with the blocking ring, an assembly ring fixedly connected between the two L-shaped brackets, the assembly ring slidably connected to the blocking ring, and two symmetrically arranged water immersion sensors bonded to the bottom surface of the assembly ring, the sensing electrodes of the water immersion sensors corresponding vertically to the support ring.

[0007] Preferably, in any of the above embodiments, an annular pad is fixedly connected to the inner wall of the extraction tube, and the bottom surface of the adsorption pad is in contact with the top surface of the annular pad.

[0008] Preferably, in any of the above embodiments, a rubber sleeve is fixedly connected to the outer surface of the insertion post, and the rubber sleeve is slidably connected to the extraction tube.

[0009] Preferably, in any of the above embodiments, the inner wall of the sleeve is fixedly connected with a plurality of circumferentially arrayed baffles, and the bottom surface of the connecting tube is in contact with the top surface of the baffles.

[0010] Preferably, in any of the above solutions, the bottom surface of the assembly ring is fixedly connected to two symmetrically arranged positioning pins, and the inner wall of the blocking ring is fixedly connected to two symmetrically arranged positioning frames, and the assembly ring is engaged with the positioning frames by means of positioning pins.

[0011] Preferably, in any of the above embodiments, a sealing gasket is fixedly connected to the bottom surface of the support ring, and a sealing groove is provided at the top end of the sleeve, wherein the sealing gasket is slidably connected to the sleeve through the sealing groove.

[0012] Preferably, in any of the above embodiments, a vertical plate is fixedly connected to the bottom surface of each water immersion sensor, the bottom surface of the vertical plate is in contact with the top surface of the support ring, and the sensing electrode of the water immersion sensor is located between the two vertical plates.

[0013] Preferably, in any of the above embodiments, the top surface of the assembly ring has two clearance grooves, and a buzzer is fixedly installed on the top surface of each water immersion sensor, the buzzer being electrically connected to the water immersion sensor.

[0014] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0015] 1. When extraction is required, insert the plug-in post to the top and insert the connecting tube into the sleeve until the bottom surface of the connecting tube is in contact with the top surface of the baffle. The baffle limits the depth of the connecting tube insertion into the sleeve. The first adapter connects to the external hose for extraction. The top and bottom of the extraction tube are installed by a sleeve connection for easy replacement. If leakage occurs at the connection between the connecting tube and the sleeve, the liquid will flow into the blocking ring. The blocking ring prevents the liquid from flowing to the outside. The liquid will also contact the sensing electrode of the water immersion sensor to trigger the buzzer, providing real-time alarm in case of leakage during device operation.

[0016] 2. When the water immersion sensor needs to be repaired, the locking pin can be pulled outward until it disengages from the blocking ring. This releases the locking relationship between the blocking ring and the L-shaped bracket, allowing the assembly ring to be pulled out from inside the blocking ring. This enables the water immersion sensor to be quickly disassembled for repair. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the assembly of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the assembly of this utility model;

[0019] Figure 3 This is an exploded structural diagram of the assembly of this utility model;

[0020] Figure 4 This is an exploded structural diagram of the sleeve of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the blocking ring of this utility model;

[0022] Figure 6 This is a schematic diagram of the assembly ring of this utility model.

[0023] In the diagram: 1-Extraction tube, 2-Plug-in post, 3-First adapter, 4-Adsorption pad, 5-Connecting tube, 6-Sleeve, 7-Second adapter, 8-Threaded sleeve, 10-Support ring, 11-Blocking ring, 12-L-shaped bracket, 13-Spring, 14-Locking pin, 15-Assembly ring, 16-Water immersion sensor, 17-Annular pad, 18-Rubber sleeve, 19-Baffle, 20-Positioning pin, 21-Positioning frame, 22-Sealing gasket, 23-Sealing groove, 24-Vertical plate, 25-Allowing groove, 26-Buzzer. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited thereto.

[0025] like Figures 1 to 6 As shown, an extraction column suitable for a multi-element system separation device includes an extraction tube 1, a plug-in column 2 slidably connected to the top of the extraction tube 1, a first adapter 3 connected to the top surface of the plug-in column 2 via a pipe, an adsorption pad 4 slidably connected inside the extraction tube 1, the adsorption pad 4 corresponding vertically to the plug-in column 2, a connecting tube 5 fixedly connected to the bottom of the extraction tube 1, a sleeve 6 sleeved on the outer surface of the connecting tube 5, a second adapter 7 fixedly connected to the bottom end of the sleeve 6, a threaded sleeve 8 threadedly connected to the top end of the sleeve 6, a support ring 10 fixedly connected to the top end of the threaded sleeve 8, the support ring 10 slidably connected to the connecting tube 5, and the support ring... A blocking ring 11 is fixedly connected to the top surface of the support ring 10. Two symmetrically arranged L-shaped brackets 12 are slidably connected to the outer surface of the blocking ring 11. A spring 13 is fixedly connected to the outer side of each L-shaped bracket 12. A locking pin 14 is fixedly connected to the end of the spring 13 away from the L-shaped bracket 12. The locking pin 14 passes through the L-shaped bracket 12 and engages with the blocking ring 11. An assembly ring 15 is fixedly connected between the two L-shaped brackets 12. The assembly ring 15 is slidably connected to the blocking ring 11. Two symmetrically arranged water immersion sensors 16 are bonded to the bottom surface of the assembly ring 15. The sensing electrodes of the water immersion sensors 16 correspond vertically to the support ring 10.

[0026] As an optional technical solution of this utility model, an annular pad 17 is fixedly connected to the inner wall of the extraction tube 1, and the bottom surface of the adsorption pad 4 is in contact with the top surface of the annular pad 17. The annular pad 17 can support the adsorption pad 4 and prevent the adsorption pad 4 from sliding inside the extraction tube 1.

[0027] As an optional technical solution of this utility model, a rubber sleeve 18 is fixedly connected to the outer surface of the plug-in post 2. The rubber sleeve 18 is slidably connected to the extraction tube 1. The setting of the rubber sleeve 18 can improve the sealing between the plug-in post 2 and the extraction tube 1.

[0028] As an optional technical solution of this utility model, the inner wall of the sleeve 6 is fixedly connected with a number of circumferentially arrayed baffles 19, and the bottom surface of the connecting tube 5 is in contact with the top surface of the baffles 19. The depth of the connecting tube 5 inserted into the sleeve 6 can be limited by the setting of the baffles 19.

[0029] As an optional technical solution of this utility model, the bottom surface of the assembly ring 15 is fixedly connected with two symmetrically arranged positioning pins 20, and the inner wall of the blocking ring 11 is fixedly connected with two symmetrically arranged positioning frames 21. The assembly ring 15 is engaged with the positioning frames 21 through the positioning pins 20, and the positioning frames 21 can support the assembly ring 15.

[0030] As an optional technical solution of this utility model, a sealing gasket 22 is fixedly connected to the bottom surface of the support ring 10, and a sealing groove 23 is opened at the top of the sleeve 6. The sealing gasket 22 is slidably connected to the sleeve 6 through the sealing groove 23. The setting of the sealing gasket 22 improves the sealing performance between the support ring 10 and the sleeve 6.

[0031] As an optional technical solution of this utility model, each water immersion sensor 16 has a vertical plate 24 fixedly connected to its bottom surface. The bottom surface of the vertical plate 24 is in contact with the top surface of the support ring 10. The sensing electrode of the water immersion sensor 16 is located between the two vertical plates 24. The vertical plate 24 can support the water immersion sensor 16 and prevent the water immersion sensor 16 from falling off the assembly ring 15.

[0032] As an optional technical solution of this utility model, two clearance grooves 25 are opened through the top surface of the assembly ring 15. A buzzer 26 is fixedly installed on the top surface of each water immersion sensor 16. The buzzer 26 is electrically connected to the water immersion sensor 16. When liquid comes into contact with the sensing electrode of the water immersion sensor 16, it triggers the buzzer 26. When leakage occurs during the operation of the device, an alarm can be triggered in real time.

[0033] An extraction column suitable for multi-element system separation devices operates on the following principle:

[0034] 1) When extraction is required, insert the plug 2 into the top of the plug 2, insert the connecting tube 5 into the sleeve 6 until the bottom surface of the connecting tube 5 is in contact with the top surface of the baffle 19.

[0035] 2): When leakage occurs at the connection between the connecting pipe 5 and the sleeve 6, the liquid will flow into the blocking ring 11. The blocking ring 11 can block the liquid and prevent it from flowing to the outside. Moreover, the liquid will contact the sensing electrode of the water immersion sensor 16 and trigger the buzzer 26.

[0036] 3): When the water immersion sensor 16 needs to be repaired, the locking pin 14 can be pulled outward until the locking pin 14 is disengaged from the blocking ring 11. Then the locking relationship between the blocking ring 11 and the L-shaped bracket 12 can be released. At this time, the assembly ring 15 can be pulled out from inside the blocking ring 11.

[0037] In summary, this extraction column, suitable for multi-element system separation devices, allows for extraction operations by inserting the plug-in column 2 to its top and inserting the connecting tube 5 into the sleeve 6 until the bottom surface of the connecting tube 5 is in contact with the top surface of the baffle 19. The baffle 19 limits the depth of insertion of the connecting tube 5 into the sleeve 6. Furthermore, the first adapter 3 connects to external flexible tubing for extraction operations. The top and bottom of the extraction tube 1 are installed using a sleeve connection, facilitating replacement. If leakage occurs at the connection between the connecting tube 5 and the sleeve 6, the liquid... The liquid will flow into the blocking ring 11, which can block the liquid and prevent it from flowing to the outside. The liquid will also contact the sensing electrode of the water immersion sensor 16 to trigger the buzzer 26. When leakage occurs during the operation of the device, an alarm can be set in real time. When the water immersion sensor 16 needs to be repaired, the locking pin 14 can be pulled outward until the locking pin 14 is disengaged from the blocking ring 11. This will release the locking relationship between the blocking ring 11 and the L-shaped bracket 12. At this time, the assembly ring 15 can be pulled out from the blocking ring 11, realizing the quick disassembly of the water immersion sensor 16 for easy repair.

Claims

1. An extraction column suitable for use in a multi-element system separation apparatus, characterised in that: The utility model provides an improved and improved extraction tube (1), the top of the extraction tube (1) is slidably connected with a plug-in column (2), the top surface of the plug-in column (2) is connected with a first adapter (3) through a pipeline, the inside of the extraction tube (1) is slidably connected with an adsorption pad (4), the adsorption pad (4) corresponds to the plug-in column (2) up and down, the bottom of the extraction tube (1) is fixedly connected with a connecting pipe (5), the outer surface of the connecting pipe (5) is sleeved with a sleeve pipe (6), the bottom end of the sleeve pipe (6) is fixedly connected with a second adapter (7), the top end of the sleeve pipe (6) is threadedly connected with a threaded sleeve (8), the top end of the threaded sleeve (8) is fixedly connected with a support ring (10), the support ring (10) is slidably connected with the connecting pipe (5), the top surface of the support ring (10) is fixedly connected with a blocking ring (11), the outer surface of the blocking ring (11) is slidably connected with two symmetrically arranged L-shaped supports (12), one spring (13) is fixedly connected with the outer side of each L-shaped support (12), the end, away from the L-shaped support (12), of the spring (13) is fixedly connected with a locking pin (14), the locking pin (14) penetrates through the L-shaped support (12) and is clamped with the blocking ring (11), the two L-shaped supports (12) are fixedly connected with an assembling ring (15), the assembling ring (15) is slidably connected with the blocking ring (11), the bottom surface of the assembling ring (15) is bonded with two symmetrically arranged water immersion sensors (16), the sensing electrode of the water immersion sensor (16) corresponds to the support ring (10) up and down.

2. An extraction column suitable for use in a multi-element system separation apparatus according to claim 1, characterised in that: The inner wall of the extraction tube (1) is fixedly connected with an annular pad (17), and the bottom surface of the adsorption pad (4) is attached to the top surface of the annular pad (17).

3. An extraction column suitable for use in a multi-element system separation apparatus according to claim 2, characterised in that: The outer surface of the plug-in column (2) is fixedly connected with a rubber sleeve (18), and the rubber sleeve (18) is slidably connected with the extraction tube (1).

4. An extraction column suitable for use in a multi-element system separation apparatus according to claim 3, characterised in that: The inner wall of the sleeve pipe (6) is fixedly connected with a plurality of circumferentially arranged baffles (19), and the bottom surface of the connecting pipe (5) is attached to the top surface of the baffles (19).

5. An extraction column suitable for use in a multi-element system separation apparatus according to claim 4, characterised in that: The bottom surface of the assembling ring (15) is fixedly connected with two symmetrically arranged positioning pins (20), the inner wall of the blocking ring (11) is fixedly connected with two symmetrically arranged positioning frames (21), and the assembling ring (15) is clamped with the positioning frames (21) through the positioning pins (20).

6. An extraction column suitable for use in a multi-element system separation apparatus according to claim 5, characterised in that: The bottom surface of the support ring (10) is fixedly connected with a sealing pad (22), the top end of the sleeve pipe (6) is provided with a sealing groove (23), and the sealing pad (22) is slidably connected with the sleeve pipe (6) through the sealing groove (23).

7. An extraction column suitable for use in a multi-element system separation apparatus according to claim 6, characterised in that: The bottom surface of each water immersion sensor (16) is fixedly connected with a vertical plate (24), the bottom surface of the vertical plate (24) is attached to the top surface of the support ring (10), and the sensing electrode of the water immersion sensor (16) is located between the two vertical plates (24).

8. An extraction column suitable for use in a multi-element system separation apparatus according to claim 7, characterised in that: Two avoiding grooves (25) are formed in the top surface of the assembling ring (15), one buzzer (26) is fixedly installed on the top surface of each water immersion sensor (16), and the buzzer (26) is electrically connected with the water immersion sensor (16).

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