Gas chromatograph-mass spectrometer for chemical material detection

Abstract

The invention relates to the technical field of chemical detection, in particular to a gas chromatograph-mass spectrometer for chemical material detection, which comprises an instrument body, a detection carrier frame is fixedly arranged on the instrument body, a chromatographic column is mounted on the detection carrier frame, an electric telescopic rod is further fixedly mounted on the detection carrier frame, and the electric telescopic rod is fixedly mounted on the detection carrier frame. A moving matching hole is formed in the portion, on the lower side of the electric telescopic rod, of the detection carrying frame, a sample moving mechanism is fixedly installed on the electric telescopic rod and used for moving a sample, and when the sample is detected, a sample cylinder is placed in a limiting carrying hole, then the electric telescopic rod is started to drive the sample cylinder to move to a working point position, and the sample cylinder moves to the working point position. The detection bearing table is in contact with the ejected plate block in the moving process, so that the ejected plate block is driven to move, a linkage plate strip frame is driven to move downwards under the action of a matched strip frame, an adsorption plug plate is driven to move downwards along with downward movement of the linkage plate strip frame, and then negative pressure can be formed to adsorb and fix a sample cylinder.

Description

Technical Field

[0001] The invention relates to the technical field of chemical detection, in particular to a gas chromatography-mass spectrometry instrument for chemical material detection. Background Art

[0002] Gas chromatography-mass spectrometry is a powerful analytical instrument that combines the advantages of gas chromatography and mass spectrometry. It is used in the field of food safety to detect pesticide residues, veterinary drug residues, additives, preservatives, etc. in food to ensure food safety. It is used in the field of environmental monitoring to monitor pollutants in air, water quality and soil, such as volatile organic compounds, polycyclic aromatic hydrocarbons, pesticide residues, etc. Gas chromatography-mass spectrometry can also be used in the fields of medicine, petrochemicals, agriculture, etc., and its scope of use is very wide. However, the existing gas chromatography-mass spectrometry has certain shortcomings when used. On the one hand, it requires staff to fix the sample tube, which is troublesome to operate, and the structure of the sample tube used with it is relatively simple, and the sample tube cannot be automatically opened during the test to ensure that the sample will not be contaminated by external dust and impurities before the test. In addition, when sampling the sample, it is in a completely open space, so that external dust and impurities may have a certain impact on the sample, thereby affecting the test results. Summary of the invention

[0003] The object of the present invention is to provide a gas chromatography-mass spectrometer for chemical material detection to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: A gas chromatograph-mass spectrometer for chemical material detection comprises an instrument body, a detection carrier is fixedly arranged on the instrument body, a chromatographic column is installed on the detection carrier, an electric telescopic rod is also fixedly installed on the detection carrier, and a movable matching hole is opened on the detection carrier at the lower side of the electric telescopic rod; A sample moving mechanism is fixedly installed on the electric telescopic rod, and the sample moving mechanism is used to move the sample, and a sample holding component is placed on the sample carrying mechanism, and the sample holding mechanism holds the sample to protect the sample; The sample moving mechanism is also provided with an adsorption component, which adsorbs and fixes the sample carrying mechanism to ensure its stability; A limit bearing plate is fixedly arranged on the other side of the detection carrier opposite to the electric telescopic rod, and guide limit channels are symmetrically opened on the limit bearing plate, and supporting load-bearing rods are also symmetrically fixedly arranged at both ends of the detection carrier; A sampling protection component is provided on the detection carrier, and the sampling process is protected by the sampling protection component; The sampling protection component is driven by the sample moving mechanism, and the sampling protection component is also connected to the adsorption component driving mechanism, and the adsorption component driving mechanism drives the adsorption component to move during the movement of the sample moving component.

[0005] Preferably, the sample moving mechanism is a detection bearing platform, and the detection bearing platform is fixedly mounted on an electric telescopic rod; A limiting load hole is arranged on the detection bearing platform, an adsorption channel is opened at the bottom of the limiting load hole, and a matching connection hole is opened at the bottom of the adsorption channel; A push-up matching plate is fixedly arranged at the lower end of the detection bearing platform, and the push-up matching plate drives the sampling protection component to move.

[0006] Preferably, the adsorption component is an adsorption plug plate, and the adsorption plug plate is plugged into the adsorption channel; A matching connection rod is fixedly provided at the lower end of the adsorption plug plate, and the matching connection rod is inserted into the matching connection hole, and a matching connection bottom block is fixedly provided at the lower end of the matching connection rod, and a matching connection channel is provided on the matching connection bottom block.

[0007] Preferably, the sample holding component is a sample tube, and bearing support plates are symmetrically fixedly arranged at both ends of the sample tube, guide plug holes are symmetrically opened on the bearing support plates, and bearing matching rods are fixedly arranged on the bearing support plates; The two ends of the sample tube are symmetrically mounted with driving matching plates, the driving matching plates are provided with bearing through holes, and the bearing through holes are plugged with bearing matching rods.

[0008] Preferably, the two sides of the driving matching plate are symmetrically hinged with connecting driving rods, and the other end of the connecting driving rod is hinged with a matching carrier strip; Guide bearing rods are symmetrically fixedly arranged at both ends of the matching carrier strip, the guide bearing rods are inserted in the guide insertion holes, and a return spring is sleeved on the guide bearing rods.

[0009] Preferably, connecting support plates are symmetrically fixedly provided at both ends of the matching carrier strip, and the connecting support plates are hingedly connected to the connecting drive rod; A sealing carrier plate is fixedly arranged on the upper end of the matching carrier strip, and a sealing cover plate is fixedly arranged on the upper end of the sealing carrier plate. The sealing cover plate seals the tube opening of the sample tube.

[0010] Preferably, the sampling protection assembly comprises a movable support slat and a movable detection guard plate, the movable support slat is fixedly provided with a movable bearing rod, and the movable bearing rod is inserted into the movable matching hole; A top plate is fixedly arranged on one end of the movable load-bearing rod away from the movable supporting strip, and a matching spring is sleeved on the movable load-bearing rod; Movable connecting rods are symmetrically fixedly arranged at both ends of the movable supporting slats, and bearing upright plates are symmetrically fixedly arranged on the upper sides of both ends of the movable supporting slats, and matching strip frames are fixedly arranged on the bearing upright plates.

[0011] Preferably, there are two movable detection guard plates, which are respectively installed at two ends of the detection carrier; An inner convex bearing plate is fixedly arranged inside the movable detection guard plate, and an inner convex pushing plate is fixedly arranged on the inner convex bearing plate.

[0012] Preferably, an externally connected load-bearing rod is fixedly provided on the outside of the movable detection guard plate, and a load-bearing matching through hole is opened on the externally connected load-bearing rod, and a supporting load-bearing matching through hole is inserted into the load-bearing matching through hole; A drooping connecting rod is fixedly arranged on the externally connected bearing rod at the lower side of the bearing matching through hole, and a matching connecting frame is fixedly arranged on the drooping connecting rod, and the matching connecting frame is hinged to the other end of the movable connecting rod.

[0013] Preferably, the adsorption component driving mechanism is a linkage slat frame, and two ends of the linkage slat frame are symmetrically fixed with limited position matching vertical plates, and the limited position matching vertical plates are inserted in the guide limit channel; A driving matching column is fixedly arranged on the limiting matching vertical plate, and the driving matching column is inserted in the matching strip frame. A supporting linkage strip is also fixedly arranged on the linkage strip frame, and the supporting linkage strip is inserted in the matching connection channel.

[0014] Compared with the prior art, the invention has the following advantages: 1. When testing the sample, place the sample tube in the restricted loading hole, and then start the electric telescopic rod to drive it to the working point. During the movement, the detection carrier will contact the top plate, and then it will drive the top plate to move. In this way, under the action of the cooperation frame, the linkage plate frame will be driven to move downward. As the linkage plate frame moves downward, it will also drive the adsorption plug plate to move downward, thereby forming a negative pressure to adsorb and fix the sample tube. No manual operation is required, which is very convenient.

[0015] 2. When the top plate moves, it will also drive the movable detection guard plate to move, so that the movable detection guard plate is sleeved on the chromatographic column. At the same time, the lower end surface of the movable detection guard plate is in contact with the detection support platform, thereby providing a relatively closed sampling space and reducing the impact of external dust and impurities on the sample.

[0016] 3. In addition, when the movable detection guard plate is moving toward each other, the inner convex push plate inside it will contact the driving matching plate on the positive tube, so that the driving matching plate will be pushed to move under the action of the inner convex push plate, and then the matching carrier strip can be driven to move under the action of the driving matching plate, so that the sample tube is in an open state, so that smooth sampling and detection can be achieved in a closed space. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a first-person perspective diagram of the instrument assembly.

[0018] Figure 2 A second perspective diagram of the instrument assembly.

[0019] Figure 3 for Figure 2 A magnified schematic diagram of center A.

[0020] Figure 4 This is a schematic diagram of the structure of the instrument.

[0021] Figure 5 Schematic diagram of the assembly of the detection support platform and the sample cylinder.

[0022] Figure 6 A first-person perspective diagram of the inspection platform assembly.

[0023] Figure 7 Schematic diagram of the second perspective of the inspection platform assembly.

[0024] Figure 8 Exploded view of the sample cylinder assembly.

[0025] Fig. 9 It is a schematic diagram of the coordination between the movable supporting slats and the linkage slat frame.

[0026] Fig.10 It is a structural schematic diagram of the activity detection guard plate.

[0027] In the figure: 1. Instrument body; 11. Detection carrier; 12. Chromatographic column; 13. Electric telescopic rod; 14. Moving matching hole; 15. Limiting bearing plate; 16. Guide limiting channel; 17. Supporting matching rod; 2. Detection bearing platform; 21. Limiting hole; 22. Adsorption channel; 23. Matching connection hole; 24. Push-up matching plate; 25. Adsorption plug plate; 26. Matching connecting rod; 27. Matching connecting bottom block; 28. Matching connecting channel; 3. Sample cylinder; 31. Bearing support plate; 32. Guide plug hole; 33. Bearing matching rod; 34. Drive matching plate; 35. Bearing through hole; 36. Connecting drive rod; 37. Matching carrier strips; 371, guide bearing rod; 372, reset spring; 38, connecting bearing plate; 39, sealing bearing plate; 391, sealing cover plate; 4, movable supporting strips; 41, movable bearing rod; 42, top plate; 43, matching spring; 44, movable connecting rod; 45, bearing vertical plate; 46, matching strip frame; 5, movable detection guard plate; 51, inner convex bearing plate; 52, inner convex pushing plate; 53, external bearing rod; 54, bearing matching through hole; 55, drooping connecting rod; 56, matching connecting frame; 6, linkage strip frame; 61, limit matching vertical plate; 62, driving matching column; 63, supporting linkage strips. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The present invention provides a technical solution: like Figure 1 and Figure 2As shown, a gas chromatography-mass spectrometer for chemical material detection includes an instrument body 1, on which a detection carrier 11 is fixedly arranged, on which a chromatographic column 12 is installed, and on which an electric telescopic rod 13 is also fixedly installed, and on which a moving matching hole 14 is opened on the detection carrier 11 at the lower side of the electric telescopic rod 13, a sample moving mechanism is fixedly installed on the electric telescopic rod 13, and the sample moving mechanism is used to move the sample, and a sample holding component is placed on the sample holding mechanism, and the sample holding mechanism holds the sample to protect the sample, and an adsorption component is also arranged on the sample moving mechanism, and the adsorption component The sample carrying mechanism is adsorbed and fixed to ensure its stability. A limit bearing plate 15 is fixedly arranged on the other side of the detection carrier 11 opposite to the electric telescopic rod 13. Guide limit channels 16 are symmetrically opened on the limit bearing plate 15, and supporting loading rods 17 are symmetrically fixedly arranged at both ends of the detection carrier 11. A sampling protection component is arranged on the detection carrier 11, and the sampling process is protected by the sampling protection component; the sampling protection component is driven by the sample moving mechanism, and the sampling protection component is also connected to the adsorption component driving mechanism, and the adsorption component driving mechanism drives the adsorption component to move during the movement of the sample moving component.

[0030] like Figure 6 and Figure 7 As shown, the sample moving mechanism is a detection carrier platform 2, which is fixedly mounted on an electric telescopic rod 13. A limiting load hole 21 is provided on the detection carrier platform 2, an adsorption channel 22 is provided at the bottom of the limiting load hole 21, a matching connection hole 23 is provided at the bottom of the adsorption channel 22, and a push-up matching plate 24 is fixedly provided at the lower end of the detection carrier platform 2, which drives the sampling protection component to move.

[0031] like Figure 6 and Figure 7 As shown, the adsorption component is an adsorption plug plate 25, which is inserted in the adsorption channel 22, and a matching connecting rod 26 is fixedly provided at the lower end of the adsorption plug plate 25, and the matching connecting rod 26 is inserted in the matching connecting hole 23, and a matching connecting bottom block 27 is fixedly provided at the lower end of the matching connecting rod 26, and a matching connecting channel 28 is provided on the matching connecting bottom block 27. In addition, when the adsorption plug plate 25 does not move downward, its upper end surface is flush with the end surface of the port of the adsorption channel 22.

[0032] like Figure 5 and Figure 8As shown, the sample holding component is a sample tube 3, and bearing support plates 31 are symmetrically fixedly provided at both ends of the sample tube 3. Guide plug holes 32 are symmetrically opened on the bearing support plates 31, and a bearing matching rod 33 is fixedly provided on the bearing support plates 31. Drive matching plates 34 are symmetrically installed at both ends of the sample tube 3, and a bearing through hole 35 is opened on the driving matching plate 34. The bearing through hole 35 is plugged with the bearing matching rod 33. In addition, when the sample tube 3 is installed on the detection bearing platform 2, it is plugged into the limiting load hole 21.

[0033] like Figure 5 and Figure 8 As shown, the two sides of the driving matching plate 34 are symmetrically hinged with connecting driving rods 36, and the other end of the connecting driving rods 36 is hinged with matching carrier strips 37, and the two ends of the matching carrier strips 37 are symmetrically fixed with guide bearing rods 371, which are inserted into the guide plug-in holes 32, and the guide bearing rods 371 are sleeved with reset springs 372, and the two ends of the reset springs 372 are respectively fixed on the bearing support plate 31 and the matching carrier strips 37.

[0034] like Figure 5 As shown, connecting support plates 38 are symmetrically fixedly provided at both ends of the matching carrier strip 37, and the connecting support plates 38 are hinged to the connecting driving rod 36. A sealing support plate 39 is fixedly provided at the upper end of the matching carrier strip 37, and a sealing cover plate 391 is fixedly provided at the upper end of the sealing support plate 39, and the sealing cover plate 391 seals the tube mouth of the sample tube 3.

[0035] like Figure 1 , Figure 2 , Fig. 9 and Fig.10 As shown, the sampling protection assembly includes a movable supporting slat 4 and a movable detection guard plate 5, a movable supporting slat 4 is fixedly provided with a movable bearing rod 41, the movable bearing rod 41 is inserted into the movable matching hole 14, and a top plate 42 is fixedly provided at one end of the movable bearing rod 41 away from the movable supporting slat 4, and a matching spring 43 is sleeved on the movable bearing rod 41, and the two ends of the matching spring 43 are respectively fixed on the detection carrier 11 and the top plate 42.

[0036] like Fig. 9 As shown, movable connecting rods 44 are symmetrically fixed at both ends of the movable supporting slats 4, and supporting vertical plates 45 are symmetrically fixed on the upper sides of both ends of the movable supporting slats 4. Matching strip frames 46 are fixed on the bearing vertical plates 45, and the inner wall of the matching strip frames 46 is smooth and free of burrs.

[0037] like Fig.10 As shown, there are two movable detection guard plates 5 , which are respectively installed at the two ends of the detection carrier 11 , and an inner convex bearing plate 51 is fixedly provided inside the movable detection guard plate 5 , and an inner convex pushing plate 52 is fixedly provided on the inner convex bearing plate 51 .

[0038] like Figure 1 and Fig.10 As shown, an externally connected load-bearing rod 53 is fixedly provided on the outside of the movable detection guard plate 5, and a load-bearing matching through hole 54 is opened on the externally connected load-bearing rod 53, in which a supporting load-bearing rod 17 is inserted, and a drooping connecting rod 55 is fixedly provided on the externally connected load-bearing rod 53 at the lower side of the load-bearing matching through hole 54, and a matching connecting frame 56 is fixedly provided on the drooping connecting rod 55, and the matching connecting frame 56 is hinged to the other end of the movable connecting rod 44.

[0039] like Figure 1 and Fig. 9 As shown, the adsorption component driving mechanism is a linkage slat frame 6, and the two ends of the linkage slat frame 6 are symmetrically fixed with limit matching vertical plates 61, the limit matching vertical plates 61 are inserted in the guide limit channel 16, and the limit matching vertical plates 61 are in contact with the inner wall of the guide limit channel 16. A driving matching column 62 is fixedly arranged on the limit matching vertical plates 61, and the driving matching column 62 is inserted in the matching strip frame 46, and the driving matching column 62 is in contact with the inner wall of the matching strip frame 46. A supporting linkage slat 63 is also fixedly arranged on the linkage slat frame 6, and the supporting linkage slat 63 is inserted in the matching connection channel 28, and the supporting linkage slat 63 is in contact with the inner wall of the matching connection channel 28.

[0040] When testing the sample, the sample is added to the sample tube 3. The specific adding operation is to push the driving matching plate 34 in the direction of the sample tube 3 by hand at the same time. As the driving matching plate 34 moves, the matching carrier strip 37 is pushed to move under the action of the connecting driving rod 36, thereby causing the sealing cover plate 391 on the matching carrier strip 37 to move so that it no longer covers the tube mouth of the sample tube 3. In this way, the sample tube 3 can be in an open state, and the sample can be added to the sample tube 3. After the sample is added, the driving matching plate 34 can be released to reset the sealing cover plate 391 under the action of the reset spring 372, and cover the tube mouth of the sample tube 3 again to seal and protect the sample. Then, the sample tube 3 can be opened. The sample tube is positioned and inserted in the limiting hole 21. Under the action of the sample tube 3, the port of the adsorption channel 22 can be sealed. The electric telescopic rod 13 is started to drive the detection carrier 2 to move, and then the sample tube 3 can be driven to move. As the detection carrier 2 moves, the push-up matching plate 24 will contact the pushed plate 42. In this way, under the action of the push-up matching plate 24, the pushed plate 42 will be pushed to move. As the pushed plate 42 moves, the movable support strip 4 will also move with it. As the movable support strip 4 moves, the linkage strip frame 6 will move downward under the cooperation of the matching strip frame 46 and the driving matching column 62, which will also drive the supporting linkage strip 63 to move downward. As the supporting linkage strip 63 moves downward, it will also pull the matching connecting bottom block 27 to move downward, which will drive the adsorption plug plate 25 to move downward. As the adsorption plug plate 25 moves downward, negative pressure can be formed in the adsorption channel 22. Under the action of the negative pressure, the sample tube 3 can be firmly fixed in the limiting hole 21, thereby ensuring the stability of the sample tube 3 during the sampling process. In addition, as the movable supporting strip 4 moves, the movable detection guard plate 5 will be driven to move toward the direction of the chromatographic column 12 under the action of the movable connecting rod 44, and finally the movable detection guard plate 5 will contact with the chromatographic column 12, and the lower end surface of the movable detection guard plate 5 will contact with the upper end surface of the detection carrier 2, so that the sampling process can be completed in one step during sampling. The relatively sealed space avoids external interference. In addition, during the movement of the movable detection guard plate 5, the inner convex push plate 52 inside it will contact the driving matching plate 34 on the sample tube 3. As the movable detection guard plate 5 moves, the driving matching plate 34 will move under the action of the inner convex push plate 52, and then the sealing cover plate 391 can be driven to move under the action of the driving matching plate 34, so that the sample tube 3 is automatically opened, thereby realizing smooth sampling. After the sampling is completed, the electric telescopic rod 13 drives the detection support platform 2 to move in the opposite direction and reset, and the movable detection guard plate 5 separates from each other, and at the same time, the adsorption plug plate 25 moves upward and resets. The negative pressure disappears and the sample tube 3 loses its fixation, making it convenient to remove it.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas chromatography-mass spectrometry instrument for chemical material detection, comprising an instrument body, a detection carrier fixedly arranged on the instrument body, a chromatographic column installed on the detection carrier, characterized in that: An electric telescopic rod is also fixedly mounted on the detection carrier, and a movable matching hole is opened on the detection carrier at the lower side of the electric telescopic rod; A sample moving mechanism is fixedly installed on the electric telescopic rod, and the sample moving mechanism is used to move the sample, and a sample holding component is placed on the sample carrying mechanism, and the sample holding mechanism holds the sample to protect the sample; The sample moving mechanism is also provided with an adsorption component, which adsorbs and fixes the sample carrying mechanism to ensure its stability; A limit bearing plate is fixedly arranged on the other side of the detection carrier opposite to the electric telescopic rod, and guide limit channels are symmetrically opened on the limit bearing plate, and supporting load-bearing rods are also symmetrically fixedly arranged at both ends of the detection carrier; A sampling protection component is provided on the detection carrier, and the sampling process is protected by the sampling protection component; The sampling protection component is driven by the sample moving mechanism, and the sampling protection component is also connected to the adsorption component driving mechanism, and the adsorption component driving mechanism drives the adsorption component to move during the movement of the sample moving component.

2. The gas chromatography-mass spectrometry instrument for chemical material detection according to claim 1, characterized in that: The sample moving mechanism is a detection bearing platform, and the detection bearing platform is fixedly mounted on an electric telescopic rod; A limiting load hole is arranged on the detection bearing platform, an adsorption channel is opened at the bottom of the limiting load hole, and a matching connection hole is opened at the bottom of the adsorption channel; A push-up matching plate is fixedly arranged at the lower end of the detection bearing platform, and the push-up matching plate drives the sampling protection component to move.

3. The gas chromatography-mass spectrometry instrument for chemical material detection according to claim 2, characterized in that: The adsorption component is an adsorption plug plate, and the adsorption plug plate is plugged into the adsorption channel; A matching connection rod is fixedly provided at the lower end of the adsorption plug plate, and the matching connection rod is inserted into the matching connection hole, and a matching connection bottom block is fixedly provided at the lower end of the matching connection rod, and a matching connection channel is provided on the matching connection bottom block.

4. The gas chromatography-mass spectrometry instrument for chemical material detection according to claim 3, characterized in that: The sample holding component is a sample tube, and the two ends of the sample tube are symmetrically fixed with bearing support plates, the bearing support plates are symmetrically provided with guide plug holes, and the bearing support plates are fixedly provided with bearing matching rods; The two ends of the sample tube are symmetrically mounted with driving matching plates, the driving matching plates are provided with bearing through holes, and the bearing through holes are plugged with bearing matching rods.

5. The gas chromatography-mass spectrometry instrument for chemical material detection according to claim 4, characterized in that: The two sides of the driving matching plate are symmetrically hinged with connecting driving rods, and the other end of the connecting driving rod is hinged with a matching carrier strip; Guide bearing rods are symmetrically fixedly arranged at both ends of the matching carrier strip, the guide bearing rods are inserted in the guide insertion holes, and a return spring is sleeved on the guide bearing rods.

6. The gas chromatography-mass spectrometry instrument for chemical material detection according to claim 5, characterized in that: The two ends of the matching carrier strip are also symmetrically fixed with connecting support plates, and the connecting support plates are hinged with the connecting drive rod; A sealing bearing plate is fixedly arranged on the upper end of the matching carrier strip, and a sealing cover plate is fixedly arranged on the upper end of the sealing bearing plate. The sealing cover plate seals the tube opening of the sample tube.

7. A gas chromatography-mass spectrometry instrument for chemical material detection according to claim 6, characterized in that: The sampling protection assembly includes a movable support strip and a movable detection guard plate, and a movable bearing rod is fixedly arranged on the movable support strip, and the movable bearing rod is inserted into the movable matching hole; A top plate is fixedly arranged on one end of the movable load-bearing rod away from the movable supporting strip, and a matching spring is sleeved on the movable load-bearing rod; Movable connecting rods are symmetrically fixedly arranged at both ends of the movable supporting slats, and bearing upright plates are symmetrically fixedly arranged on the upper sides of both ends of the movable supporting slats, and matching strip frames are fixedly arranged on the bearing upright plates.

8. The gas chromatography-mass spectrometry instrument for chemical material detection according to claim 7, characterized in that: There are two movable detection guard plates, which are respectively installed at the two ends of the detection carrier; An inner convex bearing plate is fixedly arranged inside the movable detection guard plate, and an inner convex pushing plate is fixedly arranged on the inner convex bearing plate.

9. A gas chromatography-mass spectrometry instrument for chemical material detection according to claim 8, characterized in that: An external connecting bearing rod is fixedly arranged on the outside of the movable detection guard plate, and a bearing matching through hole is opened on the external connecting bearing rod, and a supporting matching bearing rod is inserted into the bearing matching through hole; A drooping connecting rod is fixedly arranged on the externally connected bearing rod at the lower side of the bearing matching through hole, and a matching connecting frame is fixedly arranged on the drooping connecting rod, and the matching connecting frame is hinged to the other end of the movable connecting rod.

10. A gas chromatography-mass spectrometry instrument for chemical material detection according to claim 9, characterized in that: The adsorption component driving mechanism is a linkage slat frame, and the two ends of the linkage slat frame are symmetrically fixed with limited position matching vertical plates, and the limited position matching vertical plates are inserted in the guide limit channel; A driving matching column is fixedly arranged on the limiting matching vertical plate, and the driving matching column is inserted in the matching strip frame. A supporting linkage strip is also fixedly arranged on the linkage strip frame, and the supporting linkage strip is inserted in the matching connection channel.

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