High-pressure liquid chromatographic column sieve plate

Abstract

The utility model discloses a high-pressure liquid chromatographic column sieve plate, which relates to the technical field of high-pressure liquid chromatographic column sieve plates, and comprises a fixing plate, the top of the fixing plate is fixedly connected with a fixing column, the outer side of the fixing column is slidably connected with a mounting block, one end of the mounting block is fixedly connected with a column tube, the top of the column tube is provided with a pressing cap, and the pressing cap is fixedly connected with the fixing column. Through the arrangement of the mounting block, the first spring, the limiting block, the inlet groove, the fixed column, the clamping strip, the limiting groove, the movable block, the connecting rod and the second spring, the high-pressure liquid chromatographic column sieve plate has the advantages that the stability after the column pipe is mounted is improved, the phenomenon that the column pipe is easy to fall off from the fixed frame plate under an unexpected condition is avoided, and the service life of the column pipe is prolonged. Through the arrangement of the fixed plate, the push rod, the base, the clamping groove, the transmission rod, the first spring, the third spring and the fixed block, the high-pressure liquid chromatographic column sieve plate has the advantages that the height of the fixed plate is conveniently increased, the flexibility of equipment is improved, and inconvenience in adjusting the fixed frame plate is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of high - pressure liquid chromatography column sieve plates, and particularly relates to a high - pressure liquid chromatography column sieve plate. Background Technique

[0002] High - performance liquid chromatography is also known as "high - pressure liquid chromatography column sieve", "high - speed liquid chromatography", "high - resolution liquid chromatography", "modern column chromatography", etc. It is an important branch of chromatography. Using a liquid as the mobile phase and adopting a high - pressure infusion system, a single solvent with different polarities or a mixed solvent with different ratios, buffer solution, etc. as the mobile phase is pumped into a chromatographic column filled with a stationary phase. After the components in the column are separated, they enter a detector for detection or further collection, so as to realize the analysis or separation of the sample.

[0003] A high - pressure liquid chromatography column sieve plate disclosed in the Chinese utility model patent application publication specification CN 215026210 U, although it avoids the damage of the sieve plate caused by inclination, when the fixed support plate is accidentally knocked down, since the device clamps and fixes the column tube on the fixed support plate through a limit card slot and a limit hook, when the fixed support plate topples, it is easy for the limit hook to fall off from the limit card slot, and the column tube falls off from the fixed support plate and drops to the ground, causing damage to the column tube and the parts inside. Therefore, there is a problem that the column tube is prone to fall off from the fixed support plate under accidental conditions. And when the length of the column tube is greater than the length of the support rod, since the length of the support rod is fixed, the height of the fixed support plate cannot be adjusted, resulting in the fixed support plate and the support rod being unable to support the column tube. Therefore, there is a problem that it is inconvenient to adjust the support rod. In summary, this utility model has the problems that the column tube is prone to fall off from the fixed support plate under accidental conditions and it is inconvenient to adjust the height of the fixed support plate. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a high - pressure liquid chromatography column sieve plate, which solves the problems put forward in the above - mentioned background technique.

[0006] (II) Technical Solutions

[0007] To achieve the above purposes, the utility model is realized through the following technical solutions: It includes a fixing plate, a fixing column is fixedly connected to the top of the fixing plate, an installation block is slidably connected to the outside of the fixing column, one end of the installation block is fixedly connected to a column tube, a pressure cap is installed on the top of the column tube, and a control valve is installed on the outside of the bottom of the column tube;

[0008] A limiting block is movably connected to the inner wall of the fixed column. An movable block is slidably connected to the inner wall of the limiting block. A connecting rod is fixedly connected to the bottom of the movable block. A clamping strip is fixedly connected to the bottom of the connecting rod. A second spring is fixedly connected to the bottom of the clamping strip. The bottom of the second spring is fixedly connected to the limiting block;

[0009] A third spring is fixedly connected to the inner wall of the fixed plate. A push rod is fixedly connected to one end of the third spring. One end of the push rod is progressively connected to a transmission rod. A first spring is fixedly connected to the bottom of the transmission rod. The bottom of the first spring is fixedly connected to the base.

[0010] Optionally, a clamping groove is formed on the outer side of the base. A fixing block is slidably connected to the inner wall of the clamping groove. The transmission rod is slidably connected to the outer side of one end of the fixing block.

[0011] Optionally, a limiting groove is formed on the inner wall of the fixed column. The limiting grooves are annularly distributed on the inner wall of the fixed column.

[0012] Optionally, the lower end of the transmission rod is triangular in shape, and the upper end of the transmission rod is beveled.

[0013] Optionally, an inlet groove is formed at the top of the inner wall of the mounting block. The shape of the limiting block is the same as that of the mounting block.

[0014] Optionally, there are two third springs and two push rods. The push rods are distributed at the left and right ends of the fixed plate.

[0015] (III) Beneficial effects

[0016] The utility model provides a high-pressure liquid chromatography column sieve plate, which has the following beneficial effects:

[0017] 1. For the high-pressure liquid chromatography column sieve plate, through the settings of the mounting block, the first spring, the limiting block, the inlet groove, the fixed column, the clamping strip, the limiting groove, the movable block, the connecting rod, and the second spring, a high-pressure liquid chromatography column sieve plate has the advantage of improving the stability after the column tube is installed, and avoiding the column tube from easily falling off the fixed frame plate under accidental conditions.

[0018] 2. For the high-pressure liquid chromatography column sieve plate, through the settings of the fixed plate, the push rod, the base, the clamping groove, the transmission rod, the first spring, the third spring, and the fixing block, a high-pressure liquid chromatography column sieve plate has the advantage of conveniently increasing the height of the fixed plate, increasing the flexibility of the device, and avoiding the inconvenience of adjusting the height of the fixed frame plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front shaft side structural schematic diagram of the utility model;

[0020] Figure 2This is a schematic diagram of the front sectional structure of the present utility model;

[0021] Figure 3 This is a schematic diagram of the sectional structure of the mounting block of the present utility model;

[0022] Figure 4 This is the present utility model Figure 2 Schematic diagram of the enlarged structure at position A in;

[0023] Figure 5 This is the present utility model Figure 2 Schematic diagram of the enlarged structure at position B in;

[0024] Figure 6 This is the present utility model Figure 2 Schematic diagram of the enlarged structure at position C in.

[0025] In the figure: 1, fixed plate; 2, push rod; 3, base; 4, card slot; 5, limiting block; 6, compression cap; 7, column tube; 8, control valve; 9, mounting block; 10, first spring; 11, transmission rod; 12, inlet groove; 13, fixed column; 14, card strip; 15, limiting groove; 16, movable block; 17, connecting rod; 18, second spring; 19, third spring; 20, fixed block. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0027] Embodiment 1

[0028] Please refer to Figures 1 to 6 , the present utility model provides a technical solution: a high-pressure liquid chromatography column sieve plate, including a fixed plate 1, a fixed column 13 is fixedly connected to the top of the fixed plate 1, a limiting groove 15 is opened on the inner wall of the fixed column 13, the limiting grooves 15 are annularly distributed on the inner wall of the fixed column 13, a mounting block 9 is slidably connected to the outside of the fixed column 13, an inlet groove 12 is opened on the top inner wall of the mounting block 9, the shape of the limiting block 5 is the same as that of the mounting block 9, one end of the mounting block 9 is fixedly connected to a column tube 7, a compression cap 6 is installed on the top of the column tube 7, and a control valve 8 is installed on the outer side of the bottom of the column tube 7;

[0029] A limiting block 5 is movably connected to the inner wall of the fixed column 13. An active block 16 is slidably connected to the inner wall of the limiting block 5. A connecting rod 17 is fixedly connected to the bottom of the active block 16. A clamping strip 14 is fixedly connected to the bottom of the connecting rod 17. A second spring 18 is fixedly connected to the bottom of the clamping strip 14. The second spring 18 is fixedly connected to the bottom of the limiting block 5. Through the settings of the fixing plate 1, the push rod 2, the base 3, the clamping groove 4, the transmission rod 11, the first spring 10, the third spring 19, and the fixing block 20, a high-pressure liquid chromatography column sieve plate is convenient for increasing the height of the fixing plate 1 and avoiding the inconvenience of adjusting the support rod.

[0030] During use, the mounting block 9 on the column tube 7 is sleeved on the fixed column 13. Then, the active block 16 is pressed downward, so that the connecting rod 17 pushes the clamping strip 14 downward. The clamping strip 14 withdraws from the limiting groove 15. The second spring 18 contracts under the downward pressure of the clamping strip 14. While holding the active block 16, the limiting block 5 is rotated to misalign the limiting block 5 with the inlet groove 12 on the mounting block 9. After the limiting block 5 and the inlet groove 12 are misaligned, the active block 16 is released, and the second spring 18 pushes the clamping strip 14 into the limiting groove 15 to limit the limiting block 5, so that the limiting block 5 fixes the mounting block 9.

[0031] Embodiment 2

[0032] Please refer to Figures 1 to 6 The utility model provides a technical solution: a high-pressure liquid chromatography column sieve plate, including a fixing plate 1. A fixed column 13 is fixedly connected to the top of the fixing plate 1. A mounting block 9 is slidably connected to the outside of the fixed column 13. One end of the mounting block 9 is fixedly connected to a column tube 7. A compression cap 6 is installed at the top of the column tube 7. A control valve 8 is installed on the outer side of the bottom of the column tube 7;

[0033] A third spring 19 is fixedly connected to the inner wall of the fixing plate 1. The number of the third springs 19 is two. The number of the push rods 2 is two. The push rods 2 are distributed at the left and right ends of the fixing plate 1. One end of the third spring 19 is fixedly connected to the push rod 2. One end of the push rod 2 is connected to a transmission rod 11 in a progressive manner. The lower end of the transmission rod 11 is triangular in shape, and the upper end of the transmission rod 11 is beveled. A first spring 10 is fixedly connected to the bottom of the transmission rod 11. The bottom of the first spring 10 is fixedly connected to a base 3. A clamping groove 4 is opened on the outer side of the base 3. A fixing block 20 is slidably connected to the inner wall of the clamping groove 4. The outer side of one end of the fixing block 20 is slidably connected to the transmission rod 11. Through the settings of the fixing plate 1, the push rod 2, the base 3, the clamping groove 4, the transmission rod 11, the first spring 10, the third spring 19, and the fixing block 20, a high-pressure liquid chromatography column sieve plate is convenient for increasing the height of the fixing plate 1, increasing the flexibility of the equipment, and avoiding the inconvenience of adjusting the height of the fixed support plate.

[0034] In use, push the push rod 2, and the push rod 2 will push the transmission rod 11 downward. Then the first spring 10 contracts. While moving downward, the transmission rod 11 pulls the fixed block 20 back from the card slot 4 on the base 3 into the fixing plate 1, enabling the fixing plate 1 to move. After adjusting the position of the fixing plate 1, release the push rod 2, and the third spring 19 will push the push rod 2 back to its original position. The first spring 10 will push the transmission rod 11 upward, and the transmission rod 11 will push the fixed block 20 into the card slot 4 to fix the fixing plate 1.

[0035] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, with equivalent substitution or change, should be covered within the protection scope of the present invention.

Claims

1. A high-pressure liquid chromatography column sieve plate, comprising a fixing plate (1), characterized in that: A fixing column (13) is fixedly connected to the top of the fixing plate (1). An installation block (9) is slidably connected to the outer side of the fixing column (13). One end of the installation block (9) is fixedly connected to a column pipe (7). A compression cap (6) is installed on the top of the column pipe (7). A control valve (8) is installed on the outer side of the bottom of the column pipe (7); A limiting block (5) is movably connected to the inner wall of the fixing column (13). A movable block (16) is slidably connected to the inner wall of the limiting block (5). A connecting rod (17) is fixedly connected to the bottom of the movable block (16). A clamping strip (14) is fixedly connected to the bottom of the connecting rod (17). A second spring (18) is fixedly connected to the bottom of the clamping strip (14). The second spring (18) is fixedly connected to the limiting block (5) at the bottom; A third spring (19) is fixedly connected to the inner wall of the fixing plate (1). One end of the third spring (19) is fixedly connected to a push rod (2). One end of the push rod (2) is connected to a transmission rod (11) in a progressive manner. A first spring (10) is fixedly connected to the bottom of the transmission rod (11). The first spring (10) is fixedly connected to a base (3) at the bottom.

2. The high-pressure liquid chromatography column sieve plate according to claim 1, wherein: A clamping groove (4) is formed on the outer side of the base (3). A fixing block (20) is slidably connected to the inner wall of the clamping groove (4). The transmission rod (11) is slidably connected to the outer side of one end of the fixing block (20).

3. A high-pressure liquid chromatography column sieve plate according to claim 1, characterized in that: A limiting groove (15) is formed on the inner wall of the fixing column (13). The limiting grooves (15) are annularly distributed on the inner wall of the fixing column (13).

4. A high-pressure liquid chromatography column sieve plate according to claim 1, characterized in that: The lower end of the transmission rod (11) is triangular in shape, and the upper end of the transmission rod (11) is beveled.

5. A high-pressure liquid chromatography column sieve plate according to claim 1, wherein: An inlet groove (12) is formed on the top of the inner wall of the installation block (9). The shape of the limiting block (5) is the same as that of the installation block (9).

6. The high-pressure liquid chromatography column sieve plate according to claim 1, characterized in that: There are two third springs (19) and two push rods (2). The push rods (2) are distributed at the left and right ends of the fixing plate (1).

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