Filling device for preparing chromatographic column

Abstract

The utility model discloses a filling device for preparing a chromatographic column, which relates to the technical field of filling devices and comprises a bottom plate, four telescopic rods are mounted at the upper end of the bottom plate, a vibration plate is mounted at the upper ends of the telescopic rods, a power cabin is mounted at the upper end of the bottom plate close to the left side, a motor is mounted in the power cabin, and the output end of the motor is connected with a rotating shaft. One end of the rotating shaft penetrates through the power cabin and extends to the lower end of the vibration plate, two convex flywheels are fixedly installed at the positions, located at the lower end of the vibration plate, of the outer side of the rotating shaft, the outer sides of the four telescopic rods are all sleeved with springs, the two ends of each spring are fixedly connected with the vibration plate and the bottom plate correspondingly, and a lifting guide rail is fixedly installed at the upper end of the vibration plate through screws. A vertical plate is installed in the lifting guide rail, connecting blocks are fixedly connected to the positions, close to the upper end and the lower end, of one side of the vertical plate, clamping rings are fixedly connected to one ends of the connecting blocks, a storage box is installed at the upper end of the power cabin, and a conveying pump is installed at the upper end of the storage box.

Description

Technical Field

[0001] The utility model relates to the technical field of filling devices, in particular to a filling device for preparing a chromatographic column. Background Art

[0002] The chromatographic column is an important part of chromatographic analysis, which is used to separate compounds in a mixture. According to the properties of the compounds to be separated and the analysis conditions, a suitable filler material is selected and filled into the chromatographic column. The existing chromatographic column filling device easily leads to insufficient filling or uneven distribution of the filler, which affects the performance and separation effect of the chromatographic column. Therefore, those skilled in the art provide a filling device for preparing a chromatographic column to solve the problems raised in the above background technology. Utility Model Content

[0003] The utility model aims to provide a filling device for preparing a chromatographic column to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A filling device for preparing a chromatographic column comprises a base plate, four telescopic rods are threadedly mounted on the upper end of the base plate near the right side, the four telescopic rods are arranged in a matrix, a vibration plate is fixedly mounted on the upper end of the telescopic rods by screws, a power cabin is fixedly mounted on the upper end of the base plate near the left side by screws, a motor is fixedly mounted on the inner bottom wall of the power cabin by screws, an output end of the motor is fixedly connected to a rotating shaft via a coupling, one end of the rotating shaft passes through the power cabin and extends to the lower end of the vibration plate, two convex flywheels are fixedly connected to the outer side of the rotating shaft at the lower end of the vibration plate, the two convex flywheels are respectively located at the lower end of the vibration plate near the left side and near the right side and are movably connected to the vibration plate.

[0006] As a further solution of the utility model: the outer sides of the four telescopic rods are all sleeved with springs, the top ends of the springs are fixedly connected to the vibration plate, and the bottom ends of the springs are fixedly connected to the bottom plate.

[0007] As a further solution of the utility model: a lifting guide rail is fixedly installed on the upper end of the vibration plate by screws, a reciprocating screw is rotatably installed in the lifting guide rail, and the upper end of the reciprocating screw passes through the top of the lifting guide rail and is fixedly connected to a rotating handle.

[0008] As a further solution of the utility model: the outer side of the reciprocating screw is threadedly connected with a sliding block, and a vertical plate is fixedly installed on the side of the sliding block away from the lifting guide rail.

[0009] As a further solution of the utility model: the vertical plate is fixedly connected to the upper end and the lower end of the side away from the lifting guide rail with a connecting block, and the connecting block is fixedly connected to a clamping ring at the end away from the vertical plate.

[0010] As a further solution of the utility model: a material storage box is fixedly installed on the upper end of the power cabin by screws, and a feed pump is fixedly installed on the upper end of the material storage box by screws.

[0011] As a further solution of the utility model: the suction port of the feed pump is connected with the material storage box through a pipeline, the discharge port of the feed pump is equipped with a delivery pipe, and the lower end of the delivery pipe is equipped with a material injection nozzle.

[0012] As a further solution of the utility model: the center of the injection nozzle is perpendicular to the center of the clamping ring.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The chromatographic column can be quickly fixed by the clamping ring, and then the reciprocating screw rod is rotated by the turning handle so that the slider can drive the vertical plate to move up and down on the lifting guide rail, so that the chromatographic column can be docked with the injection nozzle by adjusting the height, which is convenient for injecting materials into the chromatographic column.

[0015] 2. The motor drives the shaft to rotate, thereby driving the convex flywheel to rotate. When the protruding end of the convex flywheel rotates upward, it will lift up the vibration plate. When the protruding end of the convex flywheel rotates downward, the vibration plate will fall. The rapid rotation of the convex flywheel makes the vibration plate vibrate up and down, which can compact the filled chromatographic column and make the filler in the chromatographic column fully uniform, ensuring the filling density and uniformity.

[0016] 3. The spring sleeved on the outside of the telescopic rod can provide a downward pulling force to the vibration plate when the vibration plate descends, so that the vibration plate descends faster and ensures the vibration effect of the vibration plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic diagram of the overall structure of a filling device for preparing a chromatographic column.

[0018] Figure 2 The present invention is a schematic diagram of the structure of a convex flywheel in a filling device for preparing a chromatographic column.

[0019] Figure 3 The present invention is a schematic diagram of the structure of a vibration plate and a telescopic rod in a filling device for preparing a chromatographic column.

[0020] Figure 4 The present invention is a schematic structural diagram of a lifting guide rail and a vertical plate in a filling device for preparing a chromatographic column.

[0021] Figure 5 The present invention is a front view of a lifting guide rail in a filling device for preparing a chromatographic column.

[0022] In the figure: 1. bottom plate; 2. power compartment; 3. storage box; 4. feed pump; 5. motor; 6. vibration plate; 7. lifting guide rail; 8. vertical plate; 9. spring; 10. delivery pipe; 11. injection nozzle; 12. rotating shaft; 13. convex flywheel; 14. telescopic rod; 15. reciprocating screw rod; 16. rotating handle; 17. connecting block; 18. retaining ring; 19. slider. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model provides Figure 1-5The filling device for preparing a chromatographic column shown in the figure comprises a base plate 1, four telescopic rods 14 are threadedly installed at the upper end of the base plate 1 near the right side, the four telescopic rods 14 are arranged in a matrix, a vibration plate 6 is fixedly installed on the upper end of the telescopic rods 14 by screws, a power cabin 2 is fixedly installed at the upper end of the base plate 1 near the left side by screws, a motor 5 is fixedly installed on the inner bottom wall of the power cabin 2 by screws, an output end of the motor 5 is fixedly connected to a rotating shaft 12 through a coupling, one end of the rotating shaft 12 passes through the power cabin 2 and extends to the lower end of the vibration plate 6, two convex flywheels 13 are fixedly connected to the outer side of the rotating shaft 12 at the position at the lower end of the vibration plate 6, the two convex flywheels 13 are respectively located at the lower end of the vibration plate 6 near the left side and near the right side and are movably connected to the vibration plate 6, the outer sides of the four telescopic rods 14 are all sleeved with springs 9, the top end of the spring 9 is fixedly connected to the vibration plate 6, and the bottom of the spring 9 is fixedly connected to the base plate 1 The upper end of the vibration plate 6 is fixedly installed with a lifting guide rail 7 by screws, and a reciprocating screw 15 is rotatably installed in the lifting guide rail 7. The upper end of the reciprocating screw passes through the top of the lifting guide rail 7 and is fixedly connected with a rotating handle 16. The outer side of the reciprocating screw is threadedly connected with a slider 19. A vertical plate 8 is fixedly installed on the side of the slider 19 away from the lifting guide rail 7. The vertical plate 8 is fixedly connected with a connecting block 17 near the upper end and the lower end of the side away from the lifting guide rail 7. The connecting block 17 is fixedly connected with a clamping ring 18 at one end away from the vertical plate 8, a storage box 3 is fixedly installed on the upper end of the power compartment 2 by screws, a feed pump 4 is fixedly installed on the upper end of the storage box 3 by screws, the suction port of the feed pump 4 is connected with the storage box 3 through a pipeline, a delivery pipe 10 is installed at the discharge port of the feed pump 4, and a material injection nozzle 11 is installed at the lower end of the delivery pipe 10, and the center of the material injection nozzle 11 is perpendicular to the center of the clamping ring 18.

[0025] Working principle of the utility model: When the utility model is used, the chromatographic column is first fixed by the clamp ring 18, and then the reciprocating screw rod 15 is rotated by the rotating handle 16, so that the slider 19 drives the vertical plate 8 to move on the lifting guide rail 7, thereby driving the chromatographic column to move up and down, so that the chromatographic column is docked with the injection nozzle 11, and then the feeding pump 4 is started, and the filler is sucked out from the storage box 3 through the suction port of the feeding pump 4, and then injected into the chromatographic column through the delivery pipe 10 and the injection nozzle 11. After the filling is completed, the reciprocating screw rod 15 is rotated by the rotating handle 16, and the vertical plate 8 drives the chromatographic column downward through the slider 19, so that the chromatographic column is away from the injection nozzle 11, and then the motor is started. 5. The motor 5 drives the rotating shaft 12 to rotate, and drives the convex flywheel 13 to rotate. The rotation of the convex flywheel 13 causes the vibration plate 6 to move downward at a high speed, thereby generating vibration to compact the inner filler of the chromatographic column. Because a certain degree of compression and contraction will occur in the process of compacting the filler, resulting in a reduction in the volume of the filler, it should be noted that when filling the chromatographic column, the amount of filler should be slightly more than the required final filling amount. By putting more filler, it can be ensured that the filler is fully and evenly filled into the capillary during the compaction process, and after the compaction is completed, the density and uniformity of the filler can meet the requirements of the analysis.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A filling device for preparing a chromatographic column, comprising a bottom plate (1), characterized in that: Four telescopic rods (14) are threadedly mounted at positions near the right side of the upper end of the base plate (1), the four telescopic rods (14) are arranged in a matrix, a vibration plate (6) is fixedly mounted on the upper ends of the telescopic rods (14) by screws, a power cabin (2) is fixedly mounted on the upper end of the base plate (1) by screws, a motor (5) is fixedly mounted on the inner bottom wall of the power cabin (2) by screws, an output end of the motor (5) is fixedly connected to a rotating shaft (12) by a coupling, one end of the rotating shaft (12) passes through the power cabin (2) and extends to the At the lower end of the vibration plate (6), two convex flywheels (13) are fixedly connected to the outer side of the rotating shaft (12) at the position of the lower end of the vibration plate (6); the two convex flywheels (13) are respectively located at the positions close to the left and right sides of the lower end of the vibration plate (6) and are movably connected to the vibration plate (6); a lifting guide rail (7) is fixedly installed at the upper end of the vibration plate (6) by screws; a reciprocating screw rod (15) is rotatably installed in the lifting guide rail (7); the upper end of the reciprocating screw rod (15) passes through the top of the lifting guide rail (7) and is fixedly connected to a rotating handle (16).

2. A filling device for preparing a chromatographic column according to claim 1, characterized in that: The outer sides of the four telescopic rods (14) are each sleeved with a spring (9), the top end of the spring (9) is fixedly connected to the vibration plate (6), and the bottom end of the spring (9) is fixedly connected to the bottom plate (1).

3. A filling device for preparing a chromatographic column according to claim 1, characterized in that: The outer side of the reciprocating screw rod (15) is threadedly connected to a slider (19), and a vertical plate (8) is fixedly mounted on a side of the slider (19) away from the lifting guide rail (7).

4. A filling device for preparing a chromatographic column according to claim 3, characterized in that: A connecting block (17) is fixedly connected to the upper end and the lower end of the vertical plate (8) at one side away from the lifting guide rail (7); a clamping ring (18) is fixedly connected to the connecting block (17) at one end away from the vertical plate (8); a material storage box (3) is fixedly installed on the upper end of the power cabin (2) by screws; and a feed pump (4) is fixedly installed on the upper end of the material storage box (3) by screws.

5. A filling device for preparing a chromatographic column according to claim 4, characterized in that: The suction port of the feed pump (4) is connected to the material storage box (3) through a pipeline, and the discharge port of the feed pump (4) is equipped with a delivery pipe (10), and the lower end of the delivery pipe (10) is equipped with a material injection nozzle (11).

6. A filling device for preparing a chromatographic column according to claim 5, characterized in that: The center of the injection nozzle (11) is perpendicular to the center of the clamping ring (18).

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