Gel purification system

Abstract

The invention relates to the technical field of purification systems, in particular to a gel purification system which comprises a purification column, sealing plugs are inserted into two end openings of the purification column, and the upper end and the lower end of the purification column are sleeved with threaded sleeves in a threaded mode; a telescopic rod is vertically and fixedly mounted on the upper surface of the threaded sleeve, a mounting plate is fixedly mounted at the top end of the telescopic rod, a hollow rod is vertically and fixedly mounted on the lower surface of the mounting plate, a suction cup is fixedly mounted at the bottom end of the hollow rod, a through opening is formed in the upper surface of the mounting plate, and a rotating rod is rotatably mounted in the through opening in a sealed mode; the rotating rod is connected with the mounting plate through an elastic component, a desorption opening is formed in the surface of the hollow rod, and a covering plate is fixedly mounted at the end, located in the hollow rod, of the rotating rod through a connecting rod. And through cooperation of a suction cup, a telescopic rod, a hollow rod and a covering plate, a threaded sleeve connected to the end of the purification column in a threaded and sleeving mode can be fixed, and rotation of the threaded sleeve is limited.

Description

Technical Field

[0001] The present invention relates to the technical field of purification systems, and in particular to a gel purification system. Background Art

[0002] The gel purification system is an analytical instrument used in the fields of environmental science and technology and resource science and technology. The purification column is the core of the gel purification system. By equipping it with different types of gel fillers, it can purify and separate macromolecular substances in various molecular weight ranges. Sealing plugs are usually inserted at both ends of the existing purification column and fixed by threaded sleeves.

[0003] After the threaded sleeve is threadedly installed on the end of the purification column and the sealing plug is fixed, there is no mechanism for fixing the threaded sleeve. Therefore, the threaded sleeve may become loose after long-term use, thereby causing the fixing effect of the sealing plug to deteriorate. Summary of the invention

[0004] The purpose of the present invention is to solve the following shortcomings in the prior art: after the threaded sleeve is threadedly installed on the end of the purification column and the sealing plug is fixed, there is no mechanism to fix the threaded sleeve. The threaded sleeve may become loose after long-term use, thereby causing the fixing effect of the sealing plug to deteriorate, and a gel purification system is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A gel purification system, comprising a purification column, wherein sealing plugs are inserted into ports at both ends of the purification column, a liquid flow channel is vertically opened on the upper surface of the sealing plug, a joint is arranged inside one end of the liquid flow channel located outside, threads are opened on the surfaces at both ends of the purification column, and threaded sleeves are connected to the threads, a plug rod is symmetrically fixedly installed on the surface of the sealing plug, and a pair of slots for inserting the plug rod are opened at both ends of the purification column;

[0007] A telescopic rod is vertically fixedly installed on the upper surface of the threaded sleeve, a mounting plate is fixedly installed on the top of the telescopic rod, a hollow rod is vertically fixedly installed on the lower surface of the mounting plate, a suction cup is fixedly installed on the bottom end of the hollow rod, a through opening connected to the hollow rod is provided on the upper surface of the mounting plate, a rotating rod is sealingly and rotatably installed in the through opening, the rotating rod is connected to the mounting plate through an elastic component, a desorption port is provided on the surface of the hollow rod, a covering plate for covering the desorption port is fixedly installed on one end of the rotating rod located in the hollow rod through a connecting rod, and the suction cup corresponds to the position of the sealing plug.

[0008] Preferably, the elastic component comprises a torsion spring sleeved on the rotating rod, a mounting block is fixedly mounted on the top end of the rotating rod, and two ends of the torsion spring are fixedly connected to the mounting block and the mounting plate respectively.

[0009] Preferably, a limiting component is provided on the upper surface of the mounting plate, and the limiting component is used to limit the rotation of the mounting block.

[0010] Preferably, the limiting assembly includes a limiting rod, the surface of the mounting block is provided with a locking opening for inserting the end of the limiting rod, a placement plate is fixedly installed on the upper surface of the mounting plate, the surface of the placement plate is provided with a through opening, the limiting rod is slidably inserted in the through opening, and is connected to the placement plate through a telescopic component.

[0011] Preferably, the telescopic component comprises a telescopic spring sleeved on a limiting rod, a fixing block is fixedly mounted on one end of the limiting rod, and two ends of the telescopic spring are fixedly connected to the fixing block and the placement plate respectively.

[0012] Preferably, sealing rings are fixedly mounted on the inner walls of both end ports of the purification column, and the outer wall of the sealing plug is in sliding sealing contact with the inner ring wall of the sealing ring.

[0013] Preferably, circular filter discs are provided near both ends of the purification column, and the filter discs are used to filter impurities in the test sample and are locked by a locking assembly.

[0014] Preferably, the locking assembly includes a retaining ring, a mounting ring is fixedly mounted on the side wall of the filter, a sliding block is symmetrically fixedly mounted on the side wall of the mounting ring, annular grooves are symmetrically provided on the inner wall of the purification column, two sockets for the sliding blocks to enter are provided at both ends of the purification column, two pairs of the sockets are respectively connected to the two annular grooves, the annular groove walls are symmetrically provided with rotation limit openings for the two sliding blocks to enter, the retaining ring is slidably arranged in the annular groove, and is connected to the annular groove wall through an elastic component.

[0015] Preferably, the elastic component includes two spring rods symmetrically and vertically fixedly installed in the annular groove, one end of the two spring rods is fixedly connected to the surface of the butt ring, and the butt ring is against the wall of the annular groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The threaded sleeve connected to the end of the purification column can be fixed by the cooperation between the suction cup, the telescopic rod, the hollow rod and the covering plate, so as to limit its rotation and prevent it from rotating after long-term use, thereby causing the fixing effect of the sealing plug to deteriorate;

[0018] 2. The impurities in the test sample can be filtered out by the set filter. At the same time, under the action of the locking component, the filter can be installed and disassembled quickly to avoid removing it for cleaning or replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a schematic diagram of the front three-dimensional structure of a gel purification system proposed by the present invention;

[0020] Figure 2 A schematic diagram of a top-down stereoscopic structure of a purification column in a gel purification system proposed by the present invention;

[0021] Figure 3 A schematic diagram of a partial three-dimensional structure of the end of a purification column in a gel purification system proposed by the present invention;

[0022] Figure 4 A schematic diagram of a partial three-dimensional structure of a filter disc in a gel purification system proposed by the present invention;

[0023] Figure 5 This is a schematic diagram of the front cross-sectional structure of a purification column and a sealing plug in a gel purification system proposed by the present invention;

[0024] Figure 6 A schematic diagram of a partial three-dimensional structure of a mounting plate and a hollow rod in a gel purification system proposed by the present invention;

[0025] Figure 7 for Figure 5 A magnified view of the structure at center;

[0026] Figure 8 for Figure 6 Enlarged view of the structure at point B in the middle.

[0027] In the figure: 1 purification column, 2 sealing plug, 3 liquid flow channel, 4 threaded sleeve, 5 telescopic rod, 6 mounting plate, 7 hollow rod, 8 suction cup, 9 rotating rod, 10 desorption port, 11 covering plate, 12 torsion spring, 13 mounting block, 14 limiting rod, 15 locking port, 16 telescopic spring, 17 sealing ring, 18 plug rod, 19 slot, 20 abutment ring, 21 mounting ring, 22 sliding block, 23 annular groove, 24 socket, 25 rotation limit port, 26 spring rod, 27 joint, 28 filter disc. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] The terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present invention are only for the convenience of description and are not used to limit the scope of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of the present invention without substantially changing the technical content.

[0030] Reference Figure 1-Figure 8A gel purification system comprises a purification column 1, sealing plugs 2 are inserted into the ports at both ends of the purification column 1, sealing rings 17 are fixedly installed on the inner walls of the ports at both ends of the purification column 1, the outer wall of the sealing plug 2 is in sliding sealing contact with the inner ring wall of the sealing ring 17, a liquid flow channel 3 is vertically opened on the upper surface of the sealing plug 2, a joint 27 is arranged inside the end of the liquid flow channel 3 located outside, and the two joints 27 are respectively used to connect with the output pipe and the input pipe of the sample, threads are opened on the surfaces at the upper and lower ends of the purification column 1, and threaded sleeves 4 are threadedly sleeved, plug rods 18 are symmetrically fixedly installed on the surface of the sealing plug 2, and a pair of slots 19 for inserting the plug rods 18 are opened at both ends of the purification column 1;

[0031] A telescopic rod 5 is vertically fixedly installed on the upper surface of the threaded sleeve 4, a mounting plate 6 is fixedly installed on the top of the telescopic rod 5, a hollow rod 7 is vertically fixedly installed on the lower surface of the mounting plate 6, a suction cup 8 is fixedly installed on the bottom end of the hollow rod 7, a through hole connected to the hollow rod 7 is opened on the upper surface of the mounting plate 6, a rotating rod 9 is sealed and rotatably installed in the through hole, the rotating rod 9 is connected to the mounting plate 6 through an elastic component, the elastic component includes a torsion spring 12 sleeved on the rotating rod 9, a mounting block 13 is fixedly installed on the top of the rotating rod 9, and the two ends of the torsion spring 12 are fixedly connected to the mounting block 13 and the mounting plate 6 respectively, a desorption port 10 is opened on the surface of the hollow rod 7, and a covering plate 11 for covering the desorption port 10 is fixedly installed on one end of the rotating rod 9 located in the hollow rod 7 through a connecting rod, and the suction cup 8 corresponds to the position of the sealing plug 2;

[0032] When installing the sealing plug 2, it is necessary to align the two insertion rods 18 with the two slots 19 and insert them until the sealing plug 2 is against the purification column 1, and then the threaded sleeve 4 is threadedly sleeved on the end of the purification column 1. After the sealing plug 2 is pressed and fixed, the suction cup 8 and the sealing plug 2 can be against each other by controlling the extension and contraction of the telescopic rod 5. Since the covering plate 11 located in the hollow rod 7 covers the desorption port 10, the gas located in the hollow rod 7 will slip out from the gap between the suction cup 8 and the contact surface of the sealing plug 2, and then the suction cup 8 will be attracted to the sealing plug 2. The sealing plug 2 cannot rotate under the restriction of the insertion rod 18 and the slot 19, so that the threaded sleeve 4 cannot rotate at this time, so as to avoid its self-rotation after long-term use, thereby causing the fixing effect of the sealing plug 2 to deteriorate;

[0033] When desorption is needed, it is only necessary to rotate the rotating rod 9 to control the covering plate 11 to no longer cover the desorption port 10. At this time, the gas in the outside will enter the hollow rod 7 from the desorption port 10, and the adsorption of the suction cup 8 and the sealing plug 2 will be automatically released. Then release the rotating rod 9, and the rotating rod 9 will quickly rotate and reset with the covering plate 11 under the elastic potential energy of the torsion spring 12, and the covering plate 11 will cover the desorption port 10 again.

[0034] A limiting assembly is provided on the upper surface of the mounting plate 6, and the limiting assembly is used to limit the rotation of the mounting block 13. The limiting assembly includes a limiting rod 14, and a locking hole 15 for inserting the end of the limiting rod 14 is opened on the surface of the mounting block 13. A placement plate is fixedly installed on the upper surface of the mounting plate 6, and a through hole is opened on the surface of the placement plate. The limiting rod 14 is slidably inserted in the through hole and connected to the placement plate through a telescopic component. The telescopic component includes a telescopic spring 16 sleeved on the limiting rod 14, and a fixed block is fixedly installed on one end of the limiting rod 14. The two ends of the telescopic spring 16 are respectively fixedly connected to the fixed block and the placement plate;

[0035] When the suction cup 8 and the sealing plug 2 are attracted to each other and the cover plate 11 covers the desorption port 10, the end of the limiting rod 14 will be inserted into the locking port 15, thereby limiting the rotation of the rotating rod 9 and preventing the rotating rod 9 from rotating due to the external vibration force, thereby causing the cover plate 11 to no longer cover the desorption port 10;

[0036] When it is necessary to control the rotation of the rotating rod 9 , the limiting rod 14 can be pulled to move the end thereof out of the locking opening 15 .

[0037] A circular filter 28 is provided near both ends of the purification column 1. The filter 28 is used to filter impurities in the test sample and is locked by a locking assembly. The locking assembly includes a butt ring 20. A mounting ring 21 is fixedly installed on the side wall of the filter 28. A sliding block 22 is symmetrically fixedly installed on the side wall of the mounting ring 21. An annular groove 23 is symmetrically provided on the inner wall of the purification column 1. Two sockets 24 for the sliding block 22 to enter are provided at both ends of the purification column 1. The two pairs of sockets 24 are respectively connected to the two annular grooves 23. The groove wall of the annular groove 23 is symmetrically provided with rotation limit openings 25 for the two sliding blocks 22 to enter. The butt ring 20 is slidably configured in the annular groove 23 and is connected to the groove wall of the annular groove 23 through an elastic component. The elastic component includes two spring rods 26 symmetrically and vertically fixedly installed in the annular groove 23. One end of the two spring rods 26 is fixedly connected to the surface of the butt ring 20, and the butt ring 20 is against the groove wall of the annular groove 23.

[0038] After long-term use, more impurities may accumulate on the surface of the filter 28, which may cause the filter 28 to be blocked and affect the water permeability of the filter 28. At this time, it is only necessary to unscrew the threaded sleeve 4 from the end of the purification column 1 and remove the sealing plug 2, and then control the filter 28 to move in the direction close to the ring 20 to shrink the multiple spring rods 26 until the two sliding blocks 22 are respectively moved out of the two rotation-limiting ports 25, and the rotation restriction of the filter 28 can be released, and then the filter 28 is rotated until the two sliding blocks 22 are respectively rotated to the positions corresponding to the two sockets 24, and then the filter 28 can be taken out of the purification column 1;

[0039] When it is necessary to install the filter 28, it is only necessary to align the two sliding blocks 22 with the two sockets 24 and insert them until the two sliding blocks 22 are in contact with the retaining ring 20. At this time, a pressing force is applied to the retaining ring 20 to shrink the multiple spring rods 26. At this time, the two sliding blocks 22 will enter the annular groove 23, and then the filter 28 is controlled to rotate in the purification column 1 until the two sliding blocks 22 are respectively corresponding to the positions of the two limit rotation ports 25. At this time, the filter 28 is released, and the pressing force applied to the retaining ring 20 disappears. The retaining ring 20 will quickly move and reset under the elastic potential energy of the multiple spring rods 26, and the two sliding blocks 22 are respectively pushed into the two limit rotation ports 25 to complete the installation of the filter 28. It is convenient and quick.

[0040] The present invention provides that when installing the sealing plug 2, it is necessary to align the two insertion rods 18 with the two slots 19 and insert them respectively, until the sealing plug 2 is against the purification column 1, and then the threaded sleeve 4 is threadedly sleeved on the end of the purification column 1. After the sealing plug 2 is pressed and fixed, the suction cup 8 can be made to be against the sealing plug 2 by controlling the extension and contraction of the telescopic rod 5. Since the covering plate 11 located in the hollow rod 7 covers the desorption port 10, the gas located in the hollow rod 7 will slip out from the gap between the contact surface of the suction cup 8 and the sealing plug 2, and then the suction cup 8 will be attracted to the sealing plug 2. The sealing plug 2 cannot rotate under the restriction of the insertion rod 18 and the slot 19, so that the threaded sleeve 4 cannot rotate at this time, so as to avoid its self-rotation after long-term use, thereby causing the fixing effect of the sealing plug 2 to deteriorate. When desorption is required, it is only necessary to rotate the rotating rod 9 to control the covering plate 11 to no longer cover the desorption port 10. At this time, the gas located in the outside will enter the hollow rod 7 from the desorption port 10, and the adsorption of the suction cup 8 and the sealing plug 2 will be automatically released.

[0041] In the present invention, unless otherwise clearly specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gel purification system, comprising a purification column (1), characterized in that: Sealing plugs (2) are inserted into the ports at both ends of the purification column (1), a liquid flow channel (3) is vertically opened on the upper surface of the sealing plug (2), a joint (27) is provided inside the end of the liquid flow channel (3) located outside, threads are opened on the surfaces at both ends of the purification column (1), and threaded sleeves (4) are connected to the threads, a plug rod (18) is symmetrically fixedly installed on the surface of the sealing plug (2), and a pair of slots (19) for inserting the plug rod (18) are opened at both ends of the purification column (1); A telescopic rod (5) is vertically fixedly mounted on the upper surface of the threaded sleeve (4); a mounting plate (6) is fixedly mounted on the top of the telescopic rod (5); a hollow rod (7) is vertically fixedly mounted on the lower surface of the mounting plate (6); a suction cup (8) is fixedly mounted on the bottom end of the hollow rod (7); a through opening connected to the hollow rod (7) is provided on the upper surface of the mounting plate (6); a rotating rod (9) is sealed and rotatably mounted in the through opening; the rotating rod (9) is connected to the mounting plate (6) via an elastic component; a desorption port (10) is provided on the surface of the hollow rod (7); a covering plate (11) for covering the desorption port (10) is fixedly mounted on one end of the rotating rod (9) located in the hollow rod (7) via a connecting rod; the suction cup (8) corresponds to the position of the sealing plug (2).

2. A gel purification system according to claim 1, characterized in that: The elastic component comprises a torsion spring (12) sleeved on a rotating rod (9), a mounting block (13) is fixedly mounted on the top of the rotating rod (9), and two ends of the torsion spring (12) are respectively fixedly connected to the mounting block (13) and the mounting plate (6).

3. A gel purification system according to claim 2, characterized in that: A limiting component is provided on the upper surface of the mounting plate (6), and the limiting component is used to limit the rotation of the mounting block (13).

4. A gel purification system according to claim 3, characterized in that: The limiting assembly comprises a limiting rod (14), a locking opening (15) for inserting the end of the limiting rod (14) is provided on the surface of the mounting block (13), a placement plate is fixedly mounted on the upper surface of the mounting plate (6), a through opening is provided on the surface of the placement plate, the limiting rod (14) is slidably inserted in the through opening, and is connected to the placement plate via a telescopic component.

5. A gel purification system according to claim 4, characterized in that: The telescopic component comprises a telescopic spring (16) sleeved on a limiting rod (14); a fixing block is fixedly mounted on one end of the limiting rod (14); and two ends of the telescopic spring (16) are respectively fixedly connected to the fixing block and the placement plate.

6. A gel purification system according to claim 1, characterized in that: Sealing rings (17) are fixedly mounted on the inner walls of both end ports of the purification column (1), and the outer wall of the sealing plug (2) is in sliding sealing contact with the inner wall of the sealing ring (17).

7. A gel purification system according to claim 1, characterized in that: Circular filter discs (28) are provided near both ends of the purification column (1). The filter discs (28) are used to filter impurities in the test sample and are locked by a locking assembly.

8. A gel purification system according to claim 7, characterized in that: The locking assembly comprises a retaining ring (20), a mounting ring (21) fixedly mounted on the side wall of the filter disc (28), a sliding block (22) symmetrically fixedly mounted on the side wall of the mounting ring (21), an annular groove (23) symmetrically provided on the inner wall of the purification column (1), two sockets (24) for the sliding block (22) to enter are provided at both ends of the purification column (1), two pairs of the sockets (24) are respectively connected to the two annular grooves (23), the groove wall of the annular groove (23) is symmetrically provided with rotation limiting openings (25) for the two sliding blocks (22) to enter, the retaining ring (20) is slidably arranged in the annular groove (23), and is connected to the groove wall of the annular groove (23) through an elastic component.

9. A gel purification system according to claim 8, characterized in that: The elastic component comprises two spring rods (26) symmetrically and vertically fixedly installed in the annular groove (23), one end of the two spring rods (26) is fixedly connected to the surface of the butt ring (20), and the butt ring (20) butts against the groove wall of the annular groove (23).

Images