Miniaturized portable gas chromatograph-mass spectrometer

Abstract

The utility model discloses a miniaturized portable gas chromatograph-mass spectrometer, which comprises an equipment main body and a protective box outside the equipment main body, the protective box is mounted outside the equipment main body in a covering manner, and a radiator is arranged at the bottom of the inner side of the protective box; according to the utility model, the equipment main body is arranged on the radiator arranged in the protection box and is limited by the support strips and the barrier strips which are arranged on the radiator in pairs, so that the stability of the equipment main body in the protection box is maintained, and the protection box can be used as a protection structure for isolating the equipment main body from the outside in the carrying and using stages of the equipment main body; the device body is prevented from being in direct contact with the ground or being completely exposed in the external environment, the two shoulder straps symmetrically installed on the protection box are easily worn by a detector, and the fatigue problem caused by long-time hand lifting due to the fact that the weight of the device body is large is avoided; and the detection probe is easy to store and extend out for detection.

Description

A miniaturized portable gas chromatography-mass spectrometry instrument Technical Field

[0001] This utility model relates to the technical field of gas chromatography-mass spectrometry, and in particular to a miniaturized portable gas chromatography-mass spectrometry instrument. Background Technology

[0002] Gas chromatography-mass spectrometry (GC-MS) is widely used in environmental protection, electronics, textiles, petrochemicals, fragrances and flavors, pharmaceuticals, agriculture, and food safety. It is used for the analysis of organic pollutants in the environment (air, water, and soil pollution analysis); analysis of pesticide residues, veterinary drug residues, and pharmaceutical residues; analysis of aroma components in fragrances and flavors; and detection of hazardous substances in the textile industry.

[0003] In existing technologies, when using miniaturized portable gas chromatography-mass spectrometry (GC-MS) instruments on the market, the testing personnel need to carry the instrument by the handle and take the detection probe to perform the testing. However, because the miniaturized portable GC-MS instruments are still relatively heavy and do not have corresponding hanging or wearing structures, they are prone to fatigue during long-term testing. Furthermore, when conducting water quality testing, the equipment is placed directly on the ground by the shore, making it difficult to guarantee the protective effect of the equipment and the safety of its use.

[0004] To address this issue, a miniaturized portable gas chromatography-mass spectrometry instrument is proposed, which has the advantages of being easy to carry and being easy to protect, thereby solving the problems mentioned in the background technology. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a miniaturized portable gas chromatography-mass spectrometry instrument.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a miniaturized portable gas chromatography-mass spectrometry instrument, comprising a main body and an external protective case. The protective case is installed on the outside of the main body, and a radiator is provided on the bottom inside the protective case. The radiator is in contact with the bottom surface of the main body, and several cooling fans are installed inside the radiator. Support bars are fixed on the left and right sides of the top surface of the radiator, and baffles are fixed on the upper and lower sides of the top surface of the radiator. A detection probe is connected to the main body via a flexible hose. Two shoulder straps are snapped on the outer surface of the protective case, and a ventilation mesh is embedded in the left side wall of the protective case. A side opening is provided on the right side wall of the protective case, and a movable cover is hinged to the side of the protective case with the side opening.

[0007] As a further description of the above technical solution: the protective case has a pick-up and put-out opening on the side away from the shoulder strap, and two guide rails are fixed on the outer surface of the protective case corresponding to the pick-up and put-out opening. A sealing plate is installed between the two guide rails of the protective case. The side of the sealing plate is provided with a guide strip that slides and connects with the guide rail. The sealing plate is in contact with the side of the protective case with the pick-up and put-out opening. A limit block is welded to the bottom of the guide rail corresponding to the sealing plate.

[0008] As a further description of the above technical solution: a suspension column is welded to the inner wall of the protective box, and the flexible tube of the detection probe is connected to it.

[0009] As a further description of the above technical solution: a rubber strip is adhered to the side of the support strip facing the main body of the equipment, and the cross-section of the rubber strip is a right-angled triangle structure, and the inclined surface of the rubber strip is in contact with the main body of the equipment.

[0010] As a further description of the above technical solution: an observation window is embedded in the surface of the sealing plate, and the observation window is made of tempered glass; a protrusion is welded to the upper surface of the sealing plate.

[0011] As a further description of the above technical solution: a lithium battery pack is provided on the top of the main body of the device, and a power strip is provided on the surface of the casing of the lithium battery pack.

[0012] As a further description of the above technical solution: the main body of the equipment is a gas chromatography-mass spectrometry instrument, and the model of the gas chromatography-mass spectrometry instrument is: Hecheng LIT360 portable GC-MS.

[0013] This utility model has the following beneficial effects:

[0014] In this invention, the main body of the device is placed on a heat sink inside a protective case, and is limited by a pair of support bars and baffles on the heat sink, maintaining the stability of the main body within the protective case. During the carrying and use of the main body, the protective case itself serves as a protective structure that isolates the main body from the outside world, preventing the main body from directly contacting the ground or being completely exposed to the external environment. The two shoulder straps symmetrically installed on the protective case are easy for the testing personnel to wear, avoiding fatigue caused by carrying the heavy main body for a long time. The side openings and movable covers on the protective case facilitate the storage and extension of the testing probe. At the same time, when the main body is powered on, several cooling fans installed on the heat sink provide air cooling for the main body. Combined with the ventilation net on the left side wall of the protective case, ventilation and heat dissipation of the main body are taken into account while providing protection. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the structure of a miniaturized portable gas chromatography-mass spectrometry instrument according to the present invention.

[0016] Figure 2 is a side view of the protective box;

[0017] Figure 3 is a three-dimensional view of the radiator;

[0018] Figure 4 is a schematic diagram of the guide rail and sealing plate.

[0019] Legend:

[0020] 1. Main body of the equipment; 2. Protective box; 3. Radiator; 4. Detection probe; 5. Suspension column; 6. Lithium battery pack; 7. Shoulder strap; 8. Ventilation mesh; 9. Side opening; 10. Movable cover; 11. Loading / unloading port; 12. Guide rail; 13. Sealing plate; 14. Limiting block; 15. Support bar; 16. Cooling fan; 17. Stop bar; 18. Rubber strip; 19. Guide bar. Detailed Implementation

[0021] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] According to an embodiment of the present invention, a miniaturized portable gas chromatography-mass spectrometry instrument is provided.

[0023] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. As shown in Figures 1-4, a miniaturized portable gas chromatography-mass spectrometry instrument according to an embodiment of the present invention includes a main body 1 and an external protective case 2. The protective case 2 is installed on the outside of the main body 1, and a heat sink 3 is provided on the bottom inside the protective case 2. The heat sink 3 is in contact with the bottom surface of the main body 1, and a plurality of cooling fans 16 are installed inside the heat sink 3. Support bars 15 are fixed on the left and right sides of the top surface of the heat sink 3, and baffles 17 are fixed on the upper and lower sides of the top surface of the heat sink 3. The main body of the equipment 1 is connected to the detection probe 4 via a flexible hose. Two shoulder straps 7 are fastened to the outer surface of the protective box 2. A ventilation net 8 is embedded in the left side wall of the protective box 2, and a side opening 9 is opened on the right side wall of the protective box 2. A movable cover plate 10 is hinged to the side of the protective box 2 with the side opening 9. The upper part of the shoulder straps 7 is provided with a sponge pad to increase the comfort of contact with the detection personnel. The main body of the equipment 1 is a gas chromatography-mass spectrometry instrument. The principle of gas chromatography-mass spectrometry instrument is an existing known technology, and there are mature products. Therefore, its principle will not be further explained.

[0024] In one embodiment, the protective box 2 has a pick-up and put-out opening 11 on the side away from the shoulder strap 7, and two guide rails 12 are fixed on the outer surface of the protective box 2 corresponding to the pick-up and put-out opening 11. A sealing plate 13 is installed between the two guide rails 12 of the protective box 2. The side of the sealing plate 13 is provided with a guide strip 19 that is slidably connected to the guide rail 12. The sealing plate 13 is in contact with the side of the protective box 2 with the pick-up and put-out opening 11. A limit block 14 is welded to the bottom of the guide rail 12 corresponding to the sealing plate 13. With this structure, the sealing plate 13 can be quickly installed and removed, which meets the requirements of efficient pick-up and put-out of the main body of the equipment 1.

[0025] In one embodiment, a suspension column 5 is welded to the inner wall of the protective box 2, and the flexible tube of the detection probe 4 is connected to it. This structure makes it easy to place the flexible tube of the detection probe 4 and increases the neatness.

[0026] In one embodiment, a rubber strip 18 is bonded to the side of the support strip 15 facing the device body 1, and the cross-section of the rubber strip 18 is a right-angled triangle structure, and the inclined surface of the rubber strip 18 is in contact with the device body 1. This structure facilitates the positioning of the device body 1 and increases the stability of the installation.

[0027] In one embodiment, an observation window is embedded in the surface of the sealing plate 13, and the observation window is made of tempered glass. A protrusion is welded to the upper surface of the sealing plate 13. With this structure, it is easy to observe the detection data of the main body of the device 1. The protrusion is used for hand-held movement of the sealing plate 13.

[0028] In one embodiment, a lithium battery pack 6 is disposed on the top of the device body 1, and a power strip is disposed on the surface of the casing of the lithium battery pack 6. This structure facilitates the power supply of the device body 1 and the heat sink 3. The capacity specification of the lithium battery pack 6 can be selected according to actual needs.

[0029] In one embodiment, the main body of the device 1 is specifically a gas chromatography-mass spectrometry (GC-MS) instrument, and the model of the GC-MS instrument is: Hecheng LIT360 portable GC-MS. This model of GC-MS instrument adopts a lightweight design to meet the needs of organic pollutant analysis in the environment (pollutant analysis in air, water, and soil).

[0030] Working principle:

[0031] In use, the main body 1 of the device is placed on the heat sink 3 inside the protective box 2, and the device body 1 is kept stable inside the protective box 2 by the support bars 15 and the baffle bars 17 set in pairs on the heat sink 3. During the carrying and use of the main body 1, the protective box 2 itself can serve as a protective structure to isolate the main body 1 from the outside world, preventing the main body 1 from directly contacting the ground or being completely exposed to the external environment. The two shoulder straps 7 symmetrically installed on the protective box 2 are easy for the testing personnel to wear, avoiding fatigue caused by carrying the heavy main body 1 for a long time. The side opening 9 and movable cover 10 set on the protective box 2 facilitate the storage and extension of the detection probe 4. At the same time, when the main body 1 is powered on, several cooling fans 16 installed on the heat sink 3 provide air cooling for the main body 1. Combined with the ventilation net 8 set on the left side wall of the protective box 2, ventilation and heat dissipation of the main body 1 are taken into account while providing protection.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 miniaturized portable gas chromatography-mass spectrometry instrument, comprising a main body (1) and an external protective case (2), characterized in that: The main body of the equipment (1) is covered by a protective box (2), and a radiator (3) is provided at the bottom inside the protective box (2). The radiator (3) is in contact with the bottom surface of the main body of the equipment (1), and several cooling fans (16) are installed inside the radiator (3). Support bars (15) are fixed on the left and right sides of the top surface of the radiator (3), and baffles (17) are fixed on the upper and lower sides of the top surface of the radiator (3). A detection probe (4) is connected to the main body of the equipment (1) through a flexible hose. Two shoulder straps (7) are snapped on the outer surface of the protective box (2), and a ventilation net (8) is embedded in the left side wall of the protective box (2). A side opening (9) is opened on the right side wall of the protective box (2). A movable cover plate (10) is hinged on the side of the protective box (2) with the side opening (9).

2. The miniaturized portable gas chromatography-mass spectrometry instrument according to claim 1, characterized in that: The protective case (2) has a pick-up and put-out opening (11) on the side away from the shoulder strap (7), and two guide rails (12) are fixed on the outer surface of the protective case (2) corresponding to the pick-up and put-out opening (11). A sealing plate (13) is installed between the two guide rails (12) of the protective case (2). The side of the sealing plate (13) is provided with a guide strip (19) that is slidably connected to the guide rail (12). The sealing plate (13) is in contact with the side of the protective case (2) with the pick-up and put-out opening (11). A limit block (14) is welded to the bottom of the guide rail (12) corresponding to the sealing plate (13).

3. The miniaturized portable GC-MS of claim 1, wherein: The inner wall of the protective box (2) is welded with a hanging column (5), and the flexible tube of the detection probe (4) is connected to it.

4. The miniaturized portable GC-MS of claim 1, wherein: The support strip (15) has a rubber strip (18) bonded to the side facing the main body (1), and the cross section of the rubber strip (18) is a right-angled triangle structure, and the inclined surface of the rubber strip (18) is in contact with the main body (1).

5. A miniaturized portable gas chromatography-mass spectrometry instrument according to claim 2, characterized in that: An observation window is embedded in the surface of the sealing plate (13), and the observation window is made of tempered glass. A protrusion is welded to the upper surface of the sealing plate (13).

6. The miniaturized portable GC-MS of claim 1, wherein: A lithium battery pack (6) is provided on the top of the main body (1) of the device, and a power strip is provided on the surface of the casing of the lithium battery pack (6).

7. A miniaturized portable gas chromatography-mass spectrometry instrument according to claim 1, characterized in that: The main body of the device (1) is a gas chromatography-mass spectrometry instrument, and the model of the gas chromatography-mass spectrometry instrument is: Hecheng LIT360 portable GC-MS.

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