A gas chromatograph facilitating replacement of a chromatographic column

Abstract

The utility model discloses a gas chromatography convenient to replace chromatographic column, including gas chromatography, be provided with operating groove on the gas chromatography, be provided with assembly chamber on operating groove, be equipped with the bearing plate on assembly chamber, be equipped with the firm mechanism on the bearing plate, and the firm mechanism includes operating block, and operating block and bearing plate fixed assembly, the inside of operating block is provided with the traction cavity, and the side of operating block all is provided with the moving mouth, and the side of operating block all is fixed assembly has the guide rod in symmetry, and the one end of two guide rods all is fixed assembly has the limit stop, and two guide rods all are movably assembled and have the movable block, and the movable block all are fixed assembly has and inserts the pole, and the above -mentioned gas chromatography convenient to replace chromatographic column solves the installation lack of firmness between the chromatographic column of winding on the ring and the bearing plate of existing, and it is easy to cause the ring and the bearing plate to shake between, and the problem of producing the abnormal sound, brings the inconvenience to use.

Description

Technical Field

[0001] This utility model relates to the field of gas chromatographs, specifically a gas chromatograph with an easy-to-change chromatographic column. Background Technology

[0002] A gas chromatograph (GC) is an instrument that uses chromatographic separation and detection techniques to perform qualitative and quantitative analysis of complex mixtures of multiple components. GC uses a gas as the mobile phase (carrier gas). When the sample is injected into the injector via a microsyringe, it is carried by the carrier gas into a packed or capillary column. Due to differences in the partition or adsorption coefficients of the components in the sample between the mobile phase (gas phase) and the stationary phase (liquid or solid phase) in the column, the components undergo repeated partitioning between the two phases under the flushing effect of the carrier gas, resulting in separation of the components within the column. A detector connected to the column then detects the components sequentially based on their physicochemical properties.

[0003] When installing existing chromatographic columns, the column, wound on a reel, needs to be clipped onto a support plate inside the equipment. However, existing gas chromatographs still have the following problems after installing the column:

[0004] In existing gas chromatography, the column is wound around a reel and connected to the support plate by a snap-fit ​​mechanism. This results in a lack of stability in the installation between the column and the support plate, which can easily cause shaking and noise, making it inconvenient to use. Therefore, it is necessary to use a gas chromatograph with an easy-to-replace column in the field of existing gas chromatography technology. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, the installation between the existing chromatographic column wound on the reel and the support plate lacks stability, which easily leads to shaking between the reel and the support plate, producing abnormal noise and causing inconvenience to use. This utility model proposes a gas chromatograph that facilitates column replacement.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a gas chromatograph that facilitates column replacement, comprising:

[0007] A gas chromatograph, wherein the gas chromatograph is provided with an operating slot, an assembly chamber is provided on the operating slot, and a support plate is assembled on the assembly chamber;

[0008] The stabilizing mechanism includes an operating block, which is fixedly assembled with a support plate. The operating block has a traction cavity inside and a moving port on each side of the operating block, which communicates with the traction cavity. Guide rods are symmetrically fixedly assembled on each side of the operating block, and the guide rods are located between the support plate and the moving port. A limit block is fixedly assembled at one end of each guide rod, and a movable block is movably assembled on each guide rod. An insertion rod is fixedly assembled on each movable block, and one end of the insertion rod movably passes through the limit block.

[0009] Preferably, each of the movable blocks has a fixed plate fixedly mounted on its end face, a traction disc is movably mounted on the traction cavity, a plurality of sliding blocks are fixedly mounted on the traction disc, the sliding blocks are movably mounted to the moving port, each of the sliding blocks has a fixed mounting plate fixedly mounted on its end face, and an adjusting rod is movably mounted on each mounting plate, the other end of the adjusting rod being movably mounted to the fixed plate.

[0010] Preferably, the traction disc has a rotating cavity inside, the end face of the operating block is threaded with an adjusting bolt, one end of the adjusting bolt is movably inserted into the traction cavity, and the other end of the adjusting bolt is fixedly fitted with a rotating rod.

[0011] Preferably, one end of the rotating rod extends movably into the rotating cavity, and a rotating disk is fixedly mounted on one end of the rotating rod, with the rotating disk movably assembled with the rotating cavity.

[0012] Preferably, multiple arc plates are fixedly mounted on the bearing plate, the multiple arc plates are located on the outside of the stabilizing mechanism, and a coil ring is snapped onto the multiple arc plates.

[0013] Preferably, the coil is fixedly equipped with multiple clamping plates, the chromatographic column body is wound on the coil, the chromatographic column body is located inside the clamping plates, and column nuts are inserted into both ends of the chromatographic column body. Conical graphite pads are inserted into both ends of the chromatographic column body, and the conical graphite pads are located inside the column nuts.

[0014] Preferably, the inner wall of the coil is provided with multiple insertion holes, and the insertion rod is inserted into each insertion hole.

[0015] Preferably, the top surface of the assembly chamber is symmetrically and fixedly equipped with an external threaded connector, the two ends of the chromatographic column body are respectively inserted into the external threaded connector, and the conical graphite pad is respectively threaded into the external threaded connector.

[0016] Preferably, multiple mounting blocks are fixedly mounted on the symmetrical inner walls of the assembly chamber, and multiple fixing blocks are fixedly mounted on the symmetrical end faces of the bearing plate. Fastening bolts are threaded onto the fixing blocks and mounting blocks.

[0017] Preferably, the support plate is provided with ventilation holes, the operating groove is hinged with a cabinet door, and the surface of the cabinet door is fixedly fitted with a handle.

[0018] The advantages of this utility model are:

[0019] 1. The fixing block on the bearing plate of this utility model is fixed to the mounting block on the assembly chamber by fastening bolts. The coil ring is snapped onto multiple arc plates. By adjusting the position of the coil ring and rotating the adjusting bolt on the operating block, the rotating disk on the rotating rod rotates in the rotating cavity, causing the traction disk to move in the traction cavity. The traction disk drives the sliding block to move in the moving port. Under the action of the adjusting rod, the movable block moves on the two guide rods respectively. The movable block drives the insertion rod to move on the limiting block respectively, so that the insertion rod is inserted into the corresponding insertion hole. This increases the stability of the chromatographic column body on the coil ring, avoids swaying, and improves the use effect.

[0020] 2. This utility model inserts both ends of the chromatographic column body into the column nut and the conical graphite pad respectively, so that the conical graphite pad is located inside the column nut. The column nut is then threadedly assembled with the external threaded connector, thereby fixing both ends of the chromatographic column body. At this time, the gas chromatograph is used through the chromatographic column body, which is convenient for installation and replacement.

[0021] 3. This utility model uses multiple insert rods to connect the insertion holes, making the coil ring more stable, uniform and comprehensive, and improving the installation effect. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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.

[0023] Figure 1 This is a schematic diagram of the assembly structure of the gas chromatograph, chromatographic column, support plate, and stabilizing mechanism of this utility model.

[0024] Figure 2 This is a schematic diagram of a gas chromatograph.

[0025] Figure 3 This is a schematic diagram of the chromatographic column structure;

[0026] Figure 4 A schematic diagram of the stable mechanism structure;

[0027] Figure 5 A cross-sectional structural diagram for stabilizing the mechanism.

[0028] The reference numerals in the attached figures represent:

[0029] 10. Gas chromatograph; 11. Operating tank; 12. Assembly chamber; 13. Mounting block;

[0030] 20. Support plate; 21. Fixing block; 22. Fastening bolts; 23. Vent hole;

[0031] 30. External threaded connector; 31. Cabinet door; 32. Handle; 33. Coil ring;

[0032] 40. Plate; 41. Column body; 42. Column nut; 43. Conical graphite pad;

[0033] 50. Socket; 51. Curved plate;

[0034] 52. Stabilizing mechanism; 5200. Operating block; 5201. Traction disc; 5202. Sliding block; 5203. Mounting plate; 5204. Guide rod; 5205. Limiting block; 5206. Movable block; 5207. Insert rod; 5208. Fixing plate; 5209. Adjusting rod; 5210. Adjusting bolt; 5211. Traction chamber; 5212. Moving port; 5213. Rotating chamber; 5214. Rotating rod; 5215. Rotating disc. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are for explaining the utility model only and are not intended to limit the utility model. It should be noted that this utility model is already in the actual research and development stage. Example

[0037] The following is in conjunction with the appendix Figures 1 to 5 This application will be described in further detail.

[0038] like Figure 1 and Figure 4 as well as Figure 5As shown, a gas chromatograph with an easy-to-change chromatographic column includes a gas chromatograph 10. The gas chromatograph 10 has an operating slot 11, an assembly chamber 12, a support plate 20 mounted on the assembly chamber 12, and a stabilizing mechanism 52 mounted on the support plate 20. The stabilizing mechanism 52 includes an operating block 5200, which is fixedly assembled with the support plate 20. The operating block 5200 has a traction cavity 5211 inside, and its sides are provided with displacement... The movable port 5212 is connected to the traction chamber 5211. Guide rods 5204 are symmetrically fixedly mounted on the sides of the operating block 5200. The guide rods 5204 are located between the bearing plate 20 and the movable port 5212. Limit blocks 5205 are fixedly mounted on one end of each guide rod 5204. Movable blocks 5206 are movably mounted on each guide rod 5204. Insert rods 5207 are fixedly mounted on each movable block 5206, with one end of each insert rod 5207 movably penetrating the limit block. Block 5205 and movable block 5206 are all fixedly mounted with fixing plates 5208 on their end faces. A traction disc 5201 is movably mounted on the traction cavity 5211. Multiple sliding blocks 5202 are fixedly mounted on the traction disc 5201. The sliding blocks 5202 are movably mounted to the moving port 5212. A mounting plate 5203 is fixedly mounted on the end face of each sliding block 5202. An adjusting rod 5209 is movably mounted on each mounting plate 5203. The other end of the adjusting rod 5209 corresponds to the fixing plate 5208. 208 is assembled in an active manner. The traction disc 5201 has a rotating cavity 5213 inside. The end face of the operating block 5200 is threaded with an adjusting bolt 5210. One end of the adjusting bolt 5210 is movably inserted into the traction cavity 5211. A rotating rod 5214 is fixedly installed at one end of the adjusting bolt 5210. One end of the rotating rod 5214 is movably inserted into the rotating cavity 5213. A rotating disc 5215 that rotates in the rotating cavity 5213 is fixedly installed at one end of the rotating rod 5214.

[0039] In this invention, rotating the adjusting bolt 5210 on the operating block 5200 causes the rotating disk 5215 on the rotating rod 5214 to rotate in the rotating cavity 5213, causing the traction disk 5201 to move in the traction cavity 5211. The traction disk 5201 drives the sliding block 5202 to move in the moving port 5212. Under the action of the adjusting rod 5209, the movable block 5206 moves on the two guide rods 5204 respectively, and the movable block 5206 drives the insertion rod 5207 to move on the limiting block 5205 respectively.

[0040] Reference Figures 1 to 3Multiple arc plates 51 are fixedly mounted on the support plate 20. The multiple arc plates 51 are located outside the stabilizing mechanism 52. A coil ring 33 is snapped onto the multiple arc plates 51. Multiple clamping plates 40 are fixedly mounted on the coil ring 33. A chromatographic column body 41 is wound around the coil ring 33. The chromatographic column body 41 is located inside the clamping plates 40. Column nuts 42 are inserted into both ends of the chromatographic column body 41. Conical graphite pads 43 are inserted into both ends of the chromatographic column body 41. Conical graphite pads 43 are located inside the column nuts 42. Multiple insertion holes 50 are provided on the inner wall of the coil ring 33. Insertion rods 5207 are inserted into the insertion holes 50. External threaded connectors 30 are symmetrically fixedly mounted on the top surface of the assembly chamber 12. The two ends of the chromatographic column body 41 are respectively inserted into the external threaded connectors 30, and the conical graphite pads 43 are respectively threaded into the external threaded connectors 30.

[0041] In this invention, the coil ring 33 is snapped onto multiple arc plates 51, and the position of the coil ring 33 is adjusted so that the insertion rod 5207 is inserted into the insertion hole 50. The two ends of the chromatographic column body 41 are respectively inserted into the column nut 42 and the conical graphite pad 43, so that the conical graphite pad 43 is located inside the column nut 42. The column nut 42 is threadedly assembled with the external threaded connector 30, so that the two ends of the chromatographic column body 41 are fixed.

[0042] Reference Figure 1 and Figure 2 Multiple mounting blocks 13 are fixedly mounted on the symmetrical inner walls of the assembly chamber 12. Multiple fixing blocks 21 are fixedly mounted on the symmetrical end faces of the bearing plate 20. Fastening bolts 22 are threaded onto the fixing blocks 21 and mounting blocks 13. Ventilation holes 23 are provided on the bearing plate 20. Cabinet doors 31 are hinged to the operating slot 11. Handles 32 are fixedly mounted on the surface of the cabinet doors 31.

[0043] In this utility model, the fixing block 21 on the bearing plate 20 is fixed to the mounting block 13 on the assembly chamber 12 by fastening bolts 22.

[0044] Working principle: The fixing block 21 on the bearing plate 20 is fixed to the mounting block 13 on the assembly chamber 12 by the fastening bolt 22. The coil ring 33 is snapped onto multiple arc plates 51. The position of the coil ring 33 is adjusted. The adjusting bolt 5210 on the operating block 5200 is rotated, so that the rotating disk 5215 on the rotating rod 5214 rotates in the rotating cavity 5213, causing the traction disk 5201 to move in the traction cavity 5211. The traction disk 5201 drives the sliding block 5202 to move in the moving port 5212. Under the action of the adjusting rod 5209, the movable block 5206 is respectively on the two guide rods. The movable block 5206 moves the insertion rod 5207 on the limiting block 5205, so that the insertion rod 5207 is inserted into the insertion hole 50, which increases the stability of the chromatographic column body 41 on the coil ring 33, avoids swaying, and improves the use effect. The two ends of the chromatographic column body 41 are inserted into the column nut 42 and the conical graphite pad 43 respectively, so that the conical graphite pad 43 is located inside the column nut 42. The column nut 42 is threaded with the external threaded connector 30, so that the two ends of the chromatographic column body 41 are fixed. At this time, the gas chromatograph 10 is used through the chromatographic column body 41.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A gas chromatograph with an easy-to-change chromatographic column, characterized in that: include: Gas chromatograph (10), the gas chromatograph (10) is provided with an operating slot (11), the operating slot (11) is provided with an assembly chamber (12), and the assembly chamber (12) is equipped with a support plate (20). The stabilizing mechanism (52) includes an operating block (5200), which is fixedly assembled with the bearing plate (20). The operating block (5200) has a traction cavity (5211) inside, and a moving port (5212) is provided on the side of the operating block (5200). The moving port (5212) is connected to the traction cavity (5211). Guide rods (5204) are symmetrically fixedly assembled on the side of the operating block (5200). The guide rods (5204) are located between the bearing plate (20) and the moving port (5212). A limit block (5205) is fixedly assembled at one end of each of the two guide rods (5204). A movable block (5206) is movably assembled on each of the two guide rods (5204). An insertion rod (5207) is fixedly assembled on each of the movable blocks (5206). One end of the insertion rod (5207) movably passes through the limit block (5205).

2. A gas chromatograph with an easy-to-change chromatographic column according to claim 1, characterized in that: The end face of each movable block (5206) is fixedly fitted with a fixing plate (5208), the traction chamber (5211) is movably fitted with a traction disc (5201), the traction disc (5201) is fixedly fitted with multiple sliding blocks (5202), the sliding blocks (5202) are movably fitted with the moving port (5212), the end face of each sliding block (5202) is fixedly fitted with a mounting plate (5203), the mounting plate (5203) is movably fitted with an adjusting rod (5209), and the other end of the adjusting rod (5209) is movably fitted with the fixing plate (5208).

3. A gas chromatograph with an easy-to-change chromatographic column according to claim 2, characterized in that: The traction disc (5201) has a rotating cavity (5213) inside. The end face of the operating block (5200) is threaded with an adjusting bolt (5210). One end of the adjusting bolt (5210) is movably inserted into the traction cavity (5211), and one end of the adjusting bolt (5210) is fixedly fitted with a rotating rod (5214).

4. A gas chromatograph with an easy-to-change chromatographic column according to claim 3, characterized in that: One end of the rotating rod (5214) is movably inserted into the rotating cavity (5213), and a rotating disk (5215) is fixedly mounted on one end of the rotating rod (5214). The rotating disk (5215) is movably assembled with the rotating cavity (5213).

5. A gas chromatograph with an easy-to-change chromatographic column according to claim 4, characterized in that: Multiple arc plates (51) are fixedly mounted on the bearing plate (20). The multiple arc plates (51) are located outside the stabilizing mechanism (52), and a coil ring (33) is snapped onto the multiple arc plates (51).

6. A gas chromatograph with an easy-to-change chromatographic column according to claim 5, characterized in that: The coil (33) is fixedly equipped with multiple clamping plates (40). The chromatographic column body (41) is wound around the coil (33). The chromatographic column body (41) is located inside the clamping plate (40). Column nuts (42) are inserted into both ends of the chromatographic column body (41). Conical graphite pads (43) are inserted into both ends of the chromatographic column body (41). The conical graphite pads (43) are located inside the column nuts (42).

7. A gas chromatograph with an easy-to-change chromatographic column according to claim 6, characterized in that: The inner wall of the coil (33) is provided with multiple insertion holes (50), and the insertion rod (5207) is inserted into the insertion holes (50).

8. A gas chromatograph with an easy-to-change chromatographic column according to claim 6, characterized in that: The top surface of the assembly chamber (12) is symmetrically fixed with an external threaded connector (30). The two ends of the chromatographic column body (41) are respectively inserted into the external threaded connector (30), and the conical graphite pad (43) is respectively threaded into the external threaded connector (30).

9. A gas chromatograph with an easy-to-change chromatographic column according to claim 1, characterized in that: Multiple mounting blocks (13) are fixedly mounted on the symmetrical inner walls of the assembly chamber (12), and multiple fixing blocks (21) are fixedly mounted on the symmetrical end faces of the bearing plate (20). Fastening bolts (22) are threaded onto the fixing blocks (21) and the mounting blocks (13).

10. A gas chromatograph with an easy-to-change chromatographic column according to claim 1, characterized in that: The support plate (20) is provided with ventilation holes (23), and the operating groove (11) is hinged with a cabinet door (31). The surface of the cabinet door (31) is fixedly fitted with a handle (32).

Images