Novel multifunctional mobile phase filtering device

Abstract

The utility model belongs to the technical field of mobile phase filtering devices, and particularly relates to a novel multifunctional mobile phase filtering device which comprises a mounting frame, a first supporting plate fixedly connected to the end of the mounting frame, a connecting pipe fixedly connected to the bottom of a tank body, and a fixing column fixedly connected to the inner side wall of a first mounting groove. A second mounting groove is formed in the bottom of the connecting pipe, a sealing ring is mounted in the second mounting groove, a filter pipe is movably connected to the interior of the second mounting groove, a limiting convex ring is arranged at the end of the filter pipe, a limiting ring is fixedly connected to the inner side wall of the connecting pipe, and a supporting ring is fixedly connected to the inner side wall of the filter pipe; the top of the supporting ring is movably connected with a filter membrane base, and the bottom of the limiting ring is attached to the top of the filter membrane base. According to the utility model, the limiting frame and the limiting convex ring are arranged, so that the filter pipe and the filter membrane are convenient to replace; and the intermittent rotating assembly is arranged, so that the device has multiple functions.

Description

Technical Field

[0001] This utility model belongs to the technical field of mobile phase filtration devices, specifically a novel multifunctional mobile phase filtration device. Background Technology

[0002] A mobile phase filtration device is an auxiliary device used in liquid chromatography analysis. Its main function is to filter the mobile phase reagents used in HPLC to remove particles or impurities. The filtered mobile phase reagents will not clog the chromatographic column, which can effectively extend the service life of the chromatographic column. At the same time, the filtration of the mobile phase reagents by the filter membrane method also has the function of defoaming.

[0003] After a period of use, the filter membrane of a mobile phase filtration device needs to be replaced in a timely manner to avoid affecting the filtration effect after the filter membrane reaches its service limit. However, in the existing technology, the filter membrane is usually fixed inside the filter tube, and the filter tube is threaded to the bottom of the mobile phase storage tank. Disassembly is time-consuming and laborious, making filter membrane replacement inconvenient. Summary of the Invention

[0004] The purpose of this invention is to provide a novel multifunctional mobile phase filtration device that solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A novel multifunctional mobile phase filtration device is provided, comprising a mounting frame, a first support plate fixedly connected to the end of the mounting frame, a tank fixedly connected to the top of the first support plate, a connecting pipe fixedly connected to the bottom of the tank, a fixing ring fixedly connected to the circumferential surface of the connecting pipe, a first mounting groove formed on the circumferential surface of the fixing ring, a fixing column fixedly connected to the inner wall of the first mounting groove, a limiting frame rotatably connected to the outside of the fixing column, a second mounting groove formed at the bottom of the connecting pipe, a sealing ring installed inside the second mounting groove, a filter tube movably connected inside the second mounting groove, with the top of the filter tube fitting against the bottom of the sealing ring, a limiting protrusion ring provided at the end of the filter tube, and the end of the limiting frame away from the fixing column engaging with the inside of the limiting protrusion ring, a limiting ring movably connected to the inner wall of the connecting pipe, a support ring fixedly connected to the inner wall of the filter tube, a filter membrane base movably connected to the top of the support ring, and the bottom of the limiting ring fitting against the top of the filter membrane base.

[0006] Optionally, a first control valve is fixedly connected inside the connecting tube, and a second control valve is fixedly connected inside the filter tube, with the second control valve located below the filter membrane base.

[0007] Optionally, an air pump is fixedly connected to the inner bottom of the mounting bracket, an air pipe is fixedly connected to the output end of the air pump, a connecting frame is fixedly connected to the end of the air pipe away from the air pump, and the output end of the connecting frame is fixedly connected to the top of the tank.

[0008] Optionally, a second support plate is rotatably connected inside the mounting bracket, and a liquid collection bottle is snapped onto the top of the second support plate, with the liquid collection bottle located below the filter tube.

[0009] Optionally, an intermittent rotation assembly is installed on the inner bottom of the mounting bracket, and the intermittent rotation assembly is fixedly connected to the bottom of the second support plate.

[0010] Optionally, the intermittent rotation assembly includes a motor, the output end of which is fixedly connected to a rotating column, a turntable and a rotating rod are fixedly connected to the circumferential surface of the rotating column, a limiting column is fixedly connected to the top of the rotating rod, a limiting disk is movably connected to the outside of the limiting column, a connecting column is fixedly connected to the inside of the limiting disk, and the top of the connecting column is fixedly connected to the bottom of the second support plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This utility model is equipped with a limiting frame and a limiting protrusion ring. When it is necessary to replace the filter membrane base inside the filter tube, push the filter tube upwards. The top of the filter tube will squeeze the sealing ring. Since the sealing ring itself is elastic, it will deform after being squeezed, allowing the filter tube to move upwards a short distance. By rotating the limiting frame, the restriction on the limiting protrusion ring is released, making it easy to remove the filter tube. When removing it, the limiting ring separates from the filter membrane base, thereby releasing the restriction on the filter membrane base. The filter membrane base can then be removed from the inside of the filter tube for replacement of the filter membrane inside the filter membrane base, making the replacement of the filter tube and filter membrane convenient.

[0013] 2. This utility model is equipped with an intermittent rotation component. When in use, the intermittent rotation component can drive the second support plate to rotate and use the upper collection bottle to collect the filtered mobile phase reagent. Multiple collection bottles can be used to collect a single mobile phase reagent as needed, or multiple collection bottles can be used to collect different mobile phase reagents simultaneously, making this utility model multifunctional. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0016] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0017] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0018] Figure 4 This utility model Figure 3 Enlarged structural diagram at point B;

[0019] Figure 5 This utility model Figure 3 A magnified structural diagram at point C.

[0020] In the diagram: 1. Mounting bracket; 2. First support plate; 3. Tank body; 4. Connecting pipe; 5. First control valve; 6. Fixing ring; 7. First mounting groove; 8. Fixing column; 9. Limiting bracket; 10. Second mounting groove; 11. Sealing ring; 12. Filter tube; 13. Limiting protrusion ring; 14. Limiting ring; 15. Filter membrane base; 16. Support ring; 17. Second support plate; 18. Collection bottle; 19. Air pump; 20. Air pipe; 21. Connecting bracket; 22. Intermittent rotation assembly; 23. Second control valve. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] Reference Figure 1-5A novel multifunctional mobile phase filtration device includes a mounting frame 1. A first support plate 2 is fixedly connected to the end of the mounting frame 1. A tank 3 is fixedly connected to the top of the first support plate 2. A connecting pipe 4 is fixedly connected to the bottom of the tank 3. A fixing ring 6 is fixedly connected to the circumferential surface of the connecting pipe 4. A first mounting groove 7 is formed on the circumferential surface of the fixing ring 6. A fixing column 8 is fixedly connected to the inner side wall of the first mounting groove 7. A limit frame 9 is rotatably connected to the outside of the fixing column 8. A second mounting groove 10 is formed at the bottom of the connecting pipe 4. A sealing ring 11 is installed inside the second mounting groove 10. The second mounting groove 10 is movably connected to a filter tube 12, and the top of the filter tube 12 is in contact with the bottom of the sealing ring 11. The end of the filter tube 12 is provided with a limiting protrusion ring 13, and the end of the limiting frame 9 away from the fixed post 8 is engaged with the inside of the limiting protrusion ring 13. The inner wall of the connecting tube 4 is movably connected to a limiting ring 14, and the limiting ring 14 moves inside the connecting tube 4. The inner wall of the filter tube 12 is fixedly connected to a support ring 16, and the top of the support ring 16 is movably connected to a filter membrane base 15, and the bottom of the limiting ring 14 is in contact with the top of the filter membrane base 15. When the filter membrane base 15 inside the filter tube 12 needs to be replaced, push the filter tube 12 upwards. The top of the filter tube 12 will press against the sealing ring 11. Since the sealing ring 11 itself is elastic, it will deform after being pressed, allowing the filter tube 12 to move upwards a short distance. By rotating the limiting bracket 9, the restriction on the limiting protrusion ring 13 can be released, making it easier to remove the filter tube 12. When removing it, the limiting ring 14 separates from the filter membrane base 15, thereby releasing the restriction on the filter membrane base 15. The filter membrane base 15 can then be removed from the inside of the filter tube 12 to replace the filter membrane inside the filter membrane base 15, making the replacement of the filter tube 12 and the filter membrane convenient.

[0023] A first control valve 5 is fixedly connected inside the connecting pipe 4, and a second control valve 23 is fixedly connected inside the filter pipe 12, with the second control valve 23 located below the filter membrane base 15. The filter membrane base 15 controls the flow of the mobile phase reagent inside the tank 3 via the first control valve 5, and controls the flow of the filtered mobile phase reagent via the second control valve 23.

[0024] An air pump 19 is fixedly connected to the bottom of the mounting bracket 1. An air pipe 20 is fixedly connected to the output end of the air pump 19. A connecting bracket 21 is fixedly connected to the end of the air pipe 20 away from the air pump 19, and the output end of the connecting bracket 21 is fixedly connected to the top of the tank 3. The air pump 19 supplies air to the inside of the connecting bracket 21 through the air pipe 20, thereby pushing the mobile phase reagent inside the tank 3 to fall and be filtered.

[0025] The mounting bracket 1 is internally rotatably connected to a second support plate 17, and a collection bottle 18 is snapped onto the top of the second support plate 17, with the collection bottle 18 located below the filter tube 12. The second support plate 17 is used to hold the collection bottle 18.

[0026] An intermittent rotation assembly 22 is installed at the bottom of the mounting bracket 1, and the intermittent rotation assembly 22 is fixedly connected to the bottom of the second support plate 17. In use, the intermittent rotation assembly 22 can drive the second support plate 17 to rotate, and the filtered mobile phase reagent is collected by the collection bottle 18 above. Multiple collection bottles 18 can be used to collect a single mobile phase reagent as needed, or multiple collection bottles 18 can be used to collect different mobile phase reagents simultaneously, making this utility model multifunctional.

[0027] The intermittent rotation assembly 22 includes a motor, with a rotating column fixedly connected to the motor's output end. A turntable and a rotating rod are fixedly connected to the circumference of the rotating column. A limiting post is fixedly connected to the top of the rotating rod, and a limiting disk is movably connected to the outside of the limiting post. A connecting post is fixedly connected inside the limiting disk, and the top of the connecting post is fixedly connected to the bottom of the second support plate 17. In use, the intermittent rotation assembly 22 drives the rotating column to rotate via the motor, thereby driving the turntable and rotating rod to rotate. The rotating rod drives the limiting post to move inside the limiting disk, limiting the limiting disk via the turntable. This, in turn, drives the limiting disk to rotate via the limiting post, which in turn drives the second support plate 17 to rotate, thereby changing the position of the upper collection bottle 18.

[0028] Working principle: During use, the air pump 19 pressurizes the air supply to the connecting frame 21 through the air pipe 20, pushing the mobile phase reagent inside the tank 3 downwards. After being filtered by the filter membrane in the filter membrane base 15 inside the filter tube 12, it falls from below the filter tube 12 and is collected by the collection bottle 18. When the filter membrane needs to be replaced, the filter tube 12 is pushed upwards. The top of the filter tube 12 compresses the sealing ring 11. Since the sealing ring 11 is elastic, it deforms after being compressed, allowing the filter tube 12 to move upwards a short distance. By rotating the limiting frame 9, the restriction on the limiting protrusion ring 13 is released, thus facilitating the removal of the filter tube 12. When the filter is removed, the limiting ring 14 separates from the filter membrane base 15, thereby releasing the restriction on the filter membrane base 15. The filter membrane base 15 can then be removed from the inside of the filter tube 12 for replacement of the filter membrane inside the filter membrane base 15, making the replacement of the filter tube 12 and the filter membrane convenient. In addition, the intermittent rotating component 22 can drive the second support plate 17 to rotate, so that the filtered mobile phase reagent can be collected using the upper collection bottle 18. Multiple collection bottles 18 can be used to collect a single mobile phase reagent as needed, or multiple collection bottles 18 can be used to collect different mobile phase reagents simultaneously, making this utility model multifunctional.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel multifunctional mobile phase filtration device, comprising a mounting frame (1), characterized in that: The mounting bracket (1) is fixedly connected to a first support plate (2) at its end. A tank (3) is fixedly connected to the top of the first support plate (2). A connecting pipe (4) is fixedly connected to the bottom of the tank (3). A fixing ring (6) is fixedly connected to the circumferential surface of the connecting pipe (4). A first mounting groove (7) is provided on the circumferential surface of the fixing ring (6). A fixing column (8) is fixedly connected to the inner wall of the first mounting groove (7). A limit bracket (9) is rotatably connected to the outside of the fixing column (8). A second mounting groove (10) is provided at the bottom of the connecting pipe (4). A sealing ring (11) is installed inside the second mounting groove (10). The second mounting groove (10) is movably connected to a filter tube (12), and the top of the filter tube (12) is in contact with the bottom of the sealing ring (11). The end of the filter tube (12) is provided with a limiting protrusion ring (13), and the end of the limiting frame (9) away from the fixed column (8) is engaged with the inside of the limiting protrusion ring (13). The inner wall of the connecting tube (4) is movably connected to a limiting ring (14), and the inner wall of the filter tube (12) is fixedly connected to a support ring (16). The top of the support ring (16) is movably connected to a filter membrane base (15), and the bottom of the limiting ring (14) is in contact with the top of the filter membrane base (15).

2. The novel multifunctional mobile phase filtration device as described in claim 1, characterized in that: The connecting pipe (4) is fixedly connected to a first control valve (5), and the filter pipe (12) is fixedly connected to a second control valve (23), and the second control valve (23) is located below the filter membrane base (15).

3. The novel multifunctional mobile phase filtration device as described in claim 2, characterized in that: An air pump (19) is fixedly connected to the inner bottom of the mounting bracket (1), and an air pipe (20) is fixedly connected to the output end of the air pump (19). A connecting frame (21) is fixedly connected to the end of the air pipe (20) away from the air pump (19), and the output end of the connecting frame (21) is fixedly connected to the top of the tank (3).

4. The novel multifunctional mobile phase filtration device as described in claim 3, characterized in that: The mounting bracket (1) is rotatably connected to a second support plate (17), and a liquid collection bottle (18) is snapped onto the top of the second support plate (17), and the liquid collection bottle (18) is located below the filter tube (12).

5. A novel multifunctional mobile phase filtration device as described in claim 4, characterized in that: The inner bottom of the mounting bracket (1) is equipped with an intermittent rotation component (22), and the intermittent rotation component (22) is fixedly connected to the bottom of the second support plate (17).

6. The novel multifunctional mobile phase filtration device as described in claim 5, characterized in that: The intermittent rotation assembly (22) includes a motor, the output end of which is fixedly connected to a rotating column, the circumferential surface of which is fixedly connected to a turntable and a rotating rod, the top of which is fixedly connected to a limiting column, the outside of which is movably connected to a limiting disk, the inside of which is fixedly connected to a connecting column, and the top of which is fixedly connected to the bottom of the second support plate (17).

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