Chromatographic column sample introduction assembly of ion chromatographic column incubator

Abstract

The utility model relates to the technical field of chromatographic column sample injection assemblies, in particular to an ion chromatographic column incubator chromatographic column sample injection assembly which comprises a box body, four connecting columns are fixedly connected to the inner wall of the box body, and a push rod is slidably connected to the inner wall of each connecting column. A supporting plate can be inserted along the box body, in the process, a second inserting rod is pulled to move in the reverse direction of the supporting plate along the box body, a second spring can be compressed, then the supporting plate extrudes a push rod, the push rod can vertically slide downwards along a corresponding connecting column, and a third spring begins to be compressed; when no external force acts on the supporting plate, a third spring pushes the supporting plate to pop up the supporting plate under the action of the resilience force of the third spring, so that the second inserting rod and the corresponding second inserting groove are located on the same central axis, and the second spring pushes the corresponding second inserting rod to enter the second inserting groove under the action of the resilience force of the third spring; therefore, the effect of quickly disassembling and assembling the chromatographic column supporting plate can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of chromatographic column injection components, and in particular to an ion chromatography column oven chromatographic column injection component. Background Art

[0002] In an ion chromatograph, the chromatographic column is usually installed in a column oven. If the chromatographic column needs to be replaced, the column oven needs to be opened and the chromatographic column needs to be taken out of the column oven for replacement.

[0003] A search revealed that Chinese patent publication number CN219391931U discloses an ion chromatography column oven column injection assembly, comprising a sliding plate and a cover plate fixed to the outer end of the sliding plate. The sliding plate is slidably connected to the side wall of the column oven, the side wall of the column oven is provided with a sliding guide unit that cooperates with the sliding plate, and the sliding plate is provided with a positioning protrusion that cooperates with the sliding guide unit. The sliding guide unit is connected to an elastic element so that the sliding guide unit always fits with the positioning protrusion when passing through the positioning protrusion. The utility model uses the elastic element to ensure that the sliding guide unit always fits with the sliding plate. When the sliding guide unit passes through the positioning protrusion of the sliding plate, it can always fit with the positioning protrusion to form a tight fit, thereby ensuring the stability of the sliding plate's movement.

[0004] With respect to the above-mentioned related technologies, the inventors found the following defects: the above-mentioned scheme can make the sliding guide unit always fit with the sliding plate through the elastic element, and when the sliding guide unit passes through the positioning protrusion of the sliding plate, it can always fit with the positioning protrusion to form a tight fit, thereby ensuring the stability of the movement of the sliding plate. However, this device cannot quickly disassemble and assemble the chromatographic column support plate, and the chromatographic column is fixedly supported by the support plate, and the temperature of the chromatographic column can be adjusted by the support plate. The inability to quickly disassemble and assemble the chromatographic column support plate may easily result in the inability to promptly repair or replace the heating plate or fan when it is damaged, resulting in unstable temperature control of the chromatographic column during subsequent use. Utility Model Content

[0005] In order to facilitate the rapid disassembly and assembly of a chromatographic column support plate, the present application provides an ion chromatography column oven chromatographic column injection assembly.

[0006] The chromatographic column injection assembly of the ion chromatography column oven provided in the present application adopts the following technical solution: it includes a box body, the inner wall of the box body is fixedly connected to four connecting columns, the inner wall of each connecting column is slidably connected to a push rod, the outer surface of each push rod is sleeved with a third spring, the bottom end of each third spring is fixedly connected to the corresponding connecting column, and the other end is fixedly connected to the corresponding push rod, the inner wall of the box body is slidably connected to a support plate, two second slots are provided on both sides of the support plate, the inner wall of the box body is slidably connected to four second plug rods, the inner wall of each second slot is plugged into the corresponding second plug rod, the outer surface of each second plug rod is sleeved with a second spring, and one end of each second spring close to the support plate is fixedly connected to the corresponding second plug rod, and the other end is fixedly connected to the box body.

[0007] Optionally, fixing grooves are provided on both the left and right sides of the box body, a pull plate is inserted into the inner wall of each fixing groove, and a side of each pull plate close to the box body is fixedly connected to the corresponding second insertion rod.

[0008] Optionally, a cover plate is inserted into the inner wall of the box body, two clamping blocks are fixedly connected to the outer surface of the cover plate, and a first slot is provided on a side of the cover plate away from the clamping blocks.

[0009] Optionally, two card slots are provided on the inner wall of the box body, and the inner wall of each card slot is engaged with a corresponding card block.

[0010] Optionally, a first plug rod is slidably connected to the inner wall of the box body, a first spring is sleeved on the outer surface of the first plug rod, one end of the first spring close to the cover is fixedly connected to the first plug rod, and the other end is fixedly connected to the box body.

[0011] Optionally, the outer surface of the first insertion rod is plugged into the first slot, and an end of the first insertion rod away from the first slot is fixedly connected to a pull block.

[0012] Optionally, a temperature sensor and several clamping plates are fixedly mounted on the upper surface of the support plate, and a heating plate and a fan are fixedly mounted on the bottom surface of the support plate.

[0013] In summary, this application has the following beneficial technical effects:

[0014] 1. The utility model is provided with a connecting column, a push rod, a third spring, a support plate, a second slot, a second plug rod, a second spring and other components, and the support plate is inserted along the box body. During this process, the second plug rod is pulled to make the second plug rod move along the box body in the opposite direction of the support plate, the second spring will be compressed, and then the support plate will squeeze the push rod, and the push rod will slide vertically downward along the corresponding connecting column, and the third spring will begin to compress until the second plug rod and the corresponding second slot are on the same central axis. At this time, the second spring will push the corresponding second plug rod into the second slot under the action of its rebound force. When no external force acts on the support plate, the third spring will push the support plate to pop out under the action of its rebound force, thereby completing the effect of quick disassembly and assembly of the chromatographic column support plate.

[0015] 2. The utility model is provided with a cover plate, a box body, a slot, a block, a first spring, a first rod, a first spring, a first slot, a pull block and other components. By inserting the cover plate with the block along the slot and then pulling the pull block, the pull block will drive the first rod to slide horizontally along the box body. At this time, the first spring begins to compress, and then the cover plate is pressed to close the box body. At this time, the first rod and the first slot are on the same central axis. The first spring will push the first rod into the first slot under the action of its rebound force, thereby achieving the effect that the device can quickly install the cover plate through the arrangement of the first rod and the block. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the embodiment of the present application;

[0017] Figure 2 This is a schematic diagram of the internal structure of the box in the embodiment of the present application;

[0018] Figure 3 This is a schematic diagram of the support plate structure in an embodiment of the present application;

[0019] Figure 4 It is a schematic structural diagram of the heating plate in an embodiment of the present application.

[0020] Figure numerals: 1. Box body; 2. Cover plate; 3. Fixing slot; 4. Card slot; 5. Card block; 6. First slot; 7. First insertion rod; 8. Pull block; 9. First spring; 10. Support plate; 11. Second slot; 12. Second insertion rod; 13. Second spring; 14. Pull plate; 15. Temperature sensor; 16. Card plate; 17. Heating plate; 18. Fan; 19. Push rod; 20. Third spring; 21. Connecting column. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1 - Figure 4 This application is described in further detail.

[0022] The present application embodiment discloses an ion chromatography column oven chromatography column injection assembly. Figure 1 As shown, the box body 1 includes a fixing groove 3 on both the left and right sides of the box body 1. A pull plate 14 is inserted into the inner wall of each fixing groove 3. Each pull plate 14 is fixedly connected to the corresponding second insertion rod 12 on the side closest to the box body 1. When the pull plate 14 is inserted into the fixing groove 3, it will fully enter the corresponding fixing groove 3. The central part of each fixing groove 3 is relatively concave, making it easier for the fingers to pull the pull plate 14.

[0023] See also Figure 2 、 Figure 4 The inner wall of the box body 1 is fixedly connected with four connecting columns 21, and the inner wall of each connecting column 21 is slidably connected with a push rod 19. The outer surface of each push rod 19 is sleeved with a third spring 20. The bottom end of each third spring 20 is fixedly connected to the corresponding connecting column 21, and the other end is fixedly connected to the corresponding push rod 19. The push rod 19 can slide vertically along the corresponding connecting column 21. When the top end of the push rod 19 and the corresponding connecting column 21 are on the same plane, the bottom end of the push rod 19 contacts the inner bottom wall of the corresponding connecting column 21. Through the setting of the third spring 20, when the push rod 19 slides vertically downward along the corresponding connecting column 21, the third spring 20 begins to compress, and at this time the push rod 19 has a vertical upward elastic force.

[0024] See also Figure 2 、 Figure 3 The inner wall of the box body 1 is slidably connected with a first plug rod 7, the outer surface of the first plug rod 7 is plugged into the first slot 6, and the end of the first plug rod 7 away from the first slot 6 is fixedly connected with a pull block 8. By pulling the pull block 8, the pull block 8 will drive the first plug rod 7 to move horizontally along the box body 1 toward the outside of the box body 1. The first plug rod 7 can fix the cover plate 2 by plugging it into the first slot 6.

[0025] See also Figure 2 、 Figure 3 The outer surface of the first plug rod 7 is sleeved with a first spring 9. The end of the first spring 9 close to the cover plate 2 is fixedly connected to the first plug rod 7, and the other end is fixedly connected to the box body 1. When the pull block 8 is pulled, the first spring 9 will be compressed under the action of the horizontal movement of the first plug rod 7. Then, when there is no external force acting on the pull block 8, the first spring 9 will push the first plug rod 7 to reset it under the action of its rebound force. In this process, the cover plate 2 can be disassembled and assembled by resetting the first plug rod 7 and whether the first plug rod 7 is connected to the first slot 6.

[0026] See also Figure 2 、 Figure 3The inner wall of the box body 1 is slidably connected with a support plate 10, and two second slots 11 are provided on both sides of the support plate 10. The inner wall of the box body 1 is slidably connected with four second rods 12, and the inner wall of each second slot 11 is plugged into the corresponding second rod 12. By placing the support plate 10 along the box body 1 and supporting it with the push rod 19, the support plate 10 is pressed to push the push rod 19 to slide vertically downward along the corresponding connecting column 21 until the second slot 11 and the corresponding second rod 12 are on the same central axis. At this time, the push rod 19 is flush with the corresponding connecting column 21. At this time, the support plate 10 can be quickly fixed by plugging the second rod 12 into the corresponding second slot 11.

[0027] See also Figure 2 、 Figure 3 The outer surface of each second plug rod 12 is sleeved with a second spring 13, and one end of each second spring 13 close to the support plate 10 is fixedly connected to the corresponding second plug rod 12, and the other end is fixedly connected to the box body 1. Through the setting of the second spring 13, it is necessary to pull the pull plate 14 during the installation of the support plate 10. The pull plate 14 will drive the corresponding second plug rod 12 to slide horizontally outward along the box body 1 until the second slot 11 and the corresponding second plug rod 12 are on the same central axis. At this time, release the pull plate 14, and the second spring 13 will push the corresponding second plug rod 12 into the corresponding second slot 11 under the action of its rebound force.

[0028] See also Figure 1 、 Figure 2 The inner wall of the box body 1 is plugged with a cover plate 2, and the outer surface of the cover plate 2 is fixedly connected to two card blocks 5. The inner wall of the box body 1 is provided with two card slots 4, and the inner wall of each card slot 4 is engaged with the corresponding card block 5. The cover plate 2 is provided with a first slot 6 on the side away from the card block 5. In the process of installing the cover plate 2, it is first necessary to tilt the cover plate 2 and insert the card block 5 into the corresponding card slot 4. At this time, press the other side of the cover plate 2 to install the cover plate 2.

[0029] See also Figure 4 A temperature sensor 15 and several card plates 16 are fixedly installed on the upper surface of the support plate 10, and a heating plate 17 and a fan 18 are fixedly installed on the bottom surface of the support plate 10. The temperature sensor 15 can control the temperature on the support plate 10 to prevent the chromatographic column from being damaged by excessive temperature. The chromatographic column can be clamped and fixed by the setting of the card plate 16, and the support plate 10 can be heated by the setting of the heating plate 17. The fan 18 can blow the heated air inside to circulate it and make the heating more uniform.

[0030] The implementation principle of the ion chromatography column oven chromatography column injection assembly of the embodiment of the present application is as follows: first, the heating plate 17 and the fan 18 are installed on the support plate 10, and then the support plate 10 is inserted along the box body 1. At this time, the support plate 10 will be in contact and squeezed with the push rod 19, and then the pull plate 14 is pulled. The pull plate 14 will drive the corresponding second insertion rod 12 to slide horizontally outward along the box body 1. At this time, the support plate 10 is pressed until the second slot 11 and the corresponding second insertion rod 12 are on the same central axis. At this time, the pull plate 14 is released, and the second spring 13 will push the corresponding second insertion rod 12 into the corresponding second slot 11 under the action of its rebound force. In this process, the third spring 20 will be The push rod 19 is squeezed and compressed. When no external force acts on the support plate 10, the third spring 20 will push the support plate 10 to pop out under the action of its rebound force, so as to facilitate the quick disassembly and assembly of the support plate 10, and then the cover plate 2 with the card block 5 is tilted into the box body 1, and the card block 5 is inserted into the corresponding card slot 4, and then the pull block 8 is pulled. At this time, the first insertion rod 7 will move horizontally along the box body 1 toward the outside of the box body 1, and then press the other side of the cover plate 2 until the first insertion rod 7 and the first slot 6 are on the same central axis. At this time, release the pull block 8, and the first spring 9 will push the first insertion rod 7 to reset and insert it into the first slot 6 under the action of its rebound force, so that the cover plate 2 can be quickly installed.

[0031] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An ion chromatography column oven chromatographic column injection assembly, comprising a box (1), characterized in that: The inner wall of the box body (1) is fixedly connected with four connecting columns (21), the inner wall of each connecting column (21) is slidably connected with a push rod (19), the outer surface of each push rod (19) is sleeved with a third spring (20), the bottom end of each third spring (20) is fixedly connected to the corresponding connecting column (21), and the other end is fixedly connected to the corresponding push rod (19), the inner wall of the box body (1) is slidably connected with a support plate (10), two second slots (11) are provided on both sides of the support plate (10), the inner wall of the box body (1) is slidably connected with four second plug rods (12), the inner wall of each second slot (11) is plugged with the corresponding second plug rod (12), the outer surface of each second plug rod (12) is sleeved with a second spring (13), and one end of each second spring (13) close to the support plate (10) is fixedly connected to the corresponding second plug rod (12), and the other end is fixedly connected to the box body (1).

2. The ion chromatography column oven chromatographic column injection assembly according to claim 1, characterized in that: The box body (1) is provided with fixing grooves (3) on both the left and right sides, and a pull plate (14) is inserted into the inner wall of each fixing groove (3), and the side of each pull plate (14) close to the box body (1) is fixedly connected to the corresponding second insertion rod (12).

3. The ion chromatography column oven chromatographic column injection assembly according to claim 2, characterized in that: A cover plate (2) is inserted into the inner wall of the box body (1), two clamping blocks (5) are fixedly connected to the outer surface of the cover plate (2), and a first slot (6) is provided on a side of the cover plate (2) away from the clamping blocks (5).

4. The ion chromatography column oven chromatographic column injection assembly according to claim 3, characterized in that: Two card slots (4) are provided on the inner wall of the box body (1), and the inner wall of each card slot (4) is engaged with a corresponding card block (5).

5. The ion chromatography column oven chromatographic column injection assembly according to claim 4, characterized in that: The inner wall of the box body (1) is slidably connected to a first insertion rod (7), the outer surface of the first insertion rod (7) is sleeved with a first spring (9), one end of the first spring (9) close to the cover plate (2) is fixedly connected to the first insertion rod (7), and the other end is fixedly connected to the box body (1).

6. The ion chromatography column oven chromatography column injection assembly according to claim 5, characterized in that: The outer surface of the first insertion rod (7) is plugged into the first slot (6), and one end of the first insertion rod (7) away from the first slot (6) is fixedly connected to a pull block (8).

7. The ion chromatography column oven chromatographic column injection assembly according to claim 1, characterized in that: A temperature sensor (15) and a plurality of clamping plates (16) are fixedly mounted on the upper surface of the support plate (10), and a heating plate (17) and a fan (18) are fixedly mounted on the bottom surface of the support plate (10).

Images