A portable gas chromatograph

Abstract

The utility model discloses a portable gas chromatograph relates to chromatograph technical field, aims at solving the current convenience instrument single detection channel, and the practicality is poorer technical problem, including box body, store material mechanism and seal material subassembly, the box body is through longitudinal baffle and is divided into electrical cavity and lateral cavity, and lateral cavity opening place is rotationally installed with side cover through the hinge, store material mechanism includes the fixed frame of fixed in the inboard of side cover, the electricity receiving disc of bolt mounting between fixed frame, the material tray of installing on the upside of electricity receiving disc and the carousel of rotation mounting on the upside of material tray, seal material subassembly is installed on the upside of material tray through elastic pressure subassembly, seal material subassembly includes the seal material board of being located on the upside of material tray, the connecting foot of being fixed in seal material board both sides and the butt joint of being set up in the middle place of seal material board, seal material board is half round structure and closes carousel, the utility model discloses have four channel rotation detection, and the advantage that operability is strong.

Description

Technical Field

[0001] This utility model relates to the field of chromatography technology, and more specifically, to a portable gas chromatograph. Background Technology

[0002] A gas chromatograph is a precision instrument used to separate and analyze volatile components in mixtures. It employs column chromatography with a gas as the mobile phase and a rinsing method. When an automated sample preparation and injection device pushes multiple analytes into the chromatographic column, the different partition coefficients of each component between the gas phase and the stationary liquid phase result in varying velocity profiles within the column. After traveling a certain column length, they sequentially exit the column and enter the detector. The detector detects these components, converting them into electrical signals that are then sent to a data processing workstation, thus completing the fully automated qualitative and quantitative analysis of the analytes.

[0003] Conventional gas chromatographs are bulky and inconvenient to carry, while portable gas chromatographs use a single sample acquisition channel, making it inconvenient to perform repeated analysis of multiple samples or a single type of sample, resulting in poor practicality. Therefore, we propose a portable gas chromatograph. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to practical needs, and provide a portable gas chromatograph to solve the technical problem that current convenient instruments have only a single detection channel and poor practicality.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a portable gas chromatograph, including a housing, a material storage mechanism, and a sealing assembly. The housing is divided into an electrical cavity and a side cavity by a longitudinal partition, and a side cover is rotatably installed at the opening of the side cavity via a hinge. The material storage mechanism includes a fixing frame fixed inside the side cover, a receiving plate installed between the fixing frames by bolts, a material tray installed on the upper side of the receiving plate, and a turntable rotatably installed on the upper side of the material tray. The sealing assembly is installed on the upper side of the material tray by a spring-loaded assembly. The sealing assembly includes a sealing plate located on the upper side of the material tray, connecting feet fixed on both sides of the sealing plate, and a mating interface opened in the middle of the sealing plate. The sealing plate has a semi-circular structure that encloses the turntable.

[0006] Preferably, a base is fixed to the lower inner side of the side cover, and the base and the power receiving panel are electrically connected through a plug and pins.

[0007] Preferably, both the material tray and the electrical receiving tray have connecting ends on their outer sides, and the fixing frame, connecting ends and connecting feet are fixedly connected by bolts.

[0008] Preferably, the turntable has a circular array of material inlets, and a rotating body is fixed in the middle of the upper surface of the turntable. The end face of the rotating body is an involute spline structure, including multiple involute teeth evenly distributed in the circumferential direction, and the rotating body is adapted to the interface.

[0009] Preferably, a pressure rod is fixed inside the tray, and the pressure rod corresponds to a pressure switch inside the side cavity.

[0010] Preferably, the lower surface of the sealing plate is provided with a rubber pad, and the rubber pad corresponds to the material inlet. The connecting foot is a frame structure with a longitudinal opening, and the connecting foot is fixedly connected to the connecting end through a spring-loaded component.

[0011] Preferably, the spring-loaded assembly consists of a bolt, a washer, and a spring, with the bolt nut and the washer elastically connected by the spring, and the washer pressing down to limit the connection to the bottom surface of the foot.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The box body of this utility model adopts a side cavity design, and the hinged side cover completes the loading and unloading, effectively reducing the size of the device and improving portability. The device's storage mechanism has four material inlets, which can be used to place the sample into the corresponding material inlet for storage. Then, the side cover can be closed to complete the sealing. The storage mechanism adopts a wheel-type structure to switch the corresponding test tubes and connect them with the chromatographic column detection mechanism. Through the above structure, the device adds a detection channel, which expands the device's usage conditions compared with the existing portable single detection channel, adapts to more actual situations, and enhances practicality.

[0014] 2. The semi-enclosed material storage mechanism of this utility model's sealing component, when the test tube in the corresponding material inlet is being tested, the semi-circular sealing plate blocks the test tubes in the other three material inlets, and the rubber gasket seals the test tube openings to avoid cross-contamination between different samples, ensuring the stability of sample molecules, thereby ensuring the accuracy of subsequent tests. When switching test tubes, the built-in motor of the junction plate is activated to drive the turntable to rotate. The turntable rotates 90 degrees to switch the position of the material inlet, and at the same time, the rotation pushes the sealing plate to rise, preventing the rubber gasket from rubbing molecules into the test tube and affecting the test results. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the side cover structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the material storage mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the base structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the unfolded state of this utility model;

[0020] Figure 6 This is a schematic diagram of the turntable structure of this utility model;

[0021] Figure 7 This is a schematic diagram of the sealing assembly of this utility model.

[0022] The following are the labels in the diagram: 1. Box body; 101. Side cavity; 2. Side cover; 3. Material storage mechanism; 301. Material tray; 302. Touch rod; 303. Electrical connection plate; 304. Base; 305. Fixing frame; 306. Rotating body; 307. Turntable; 308. Material inlet; 309. Connecting end; 4. Sealing assembly; 401. Sealing plate; 402. Rubber pad; 403. Interlocking interface; 404. Connecting foot; 5. Spring-loaded assembly. Detailed Implementation

[0023] like Figures 1 to 4 As shown, this utility model relates to a portable gas chromatograph, including a housing 1, a material storage mechanism 3, and a sealing assembly 4. The housing 1 is divided into an electrical cavity and a side cavity 101 by a longitudinal partition. A side cover 2 is hinged to the opening of the side cavity 101. The material storage mechanism 3 includes a fixing frame 305 fixed inside the side cover 2, a receiving plate 303 bolted to the fixing frame 305, a material tray 301 mounted on the receiving plate 303, and a turntable 307 rotatably mounted on the material tray 301. A base 304 is fixed to the lower inner side of the side cover 2, and the base 304 and the receiving plate 303 are electrically connected by a plug and pins. Both the material tray 301 and the receiving plate 303 have connecting ends 309 on their outer sides, and the fixing frame 305, connecting ends 309, and connecting pins 404 are fixedly connected by bolts. The turntable 307... The upper ring array 7 has a material inlet 308. A rotating body 306 is fixed in the middle of the upper surface of the turntable 307. The end face of the rotating body 306 has an involute spline structure, including multiple involute teeth evenly distributed in the circumference. The rotating body 306 is adapted to the interface 403. The box 1 adopts a side cavity design. The hinged side cover 2 completes the loading and unloading, effectively reducing the size of the device and improving portability. The device storage mechanism 3 has four material inlets 308. Samples can be placed into the corresponding material inlet 308 through test tubes for storage. Then, the side cover 2 can be closed to complete the sealing. The storage mechanism 3 adopts a wheel-type structure to switch the corresponding test tubes and connect them to the chromatographic column detection mechanism. Through the above structure, the device adds a detection channel, which expands the usage conditions of the device compared with the existing portable single detection channel, adapts to more actual situations, and enhances practicality.

[0024] like Figures 3 to 7As shown, this utility model relates to a portable gas chromatograph, including a housing 1, a material storage mechanism 3, and a sealing assembly 4. The sealing assembly 4 is mounted on the upper side of the material tray 301 via a spring-loaded assembly 5. The sealing assembly 4 includes a sealing plate 401 located on the upper side of the material tray 301, connecting feet 404 fixed on both sides of the sealing plate 401, and a mating interface 403 opened in the middle of the sealing plate 401. The sealing plate 401 has a semi-circular structure that encloses the turntable 307. A touch rod 302 is fixed inside the material tray 301, and the touch rod 302 corresponds to a touch-sensitive switch in the side cavity 101. A rubber pad 402 is provided on the lower surface of the sealing plate 401, and the rubber pad 402 corresponds to the material inlet 308. The connecting feet 404 are a frame structure with a longitudinal opening, and the connecting feet 404 are fixed to the connecting end 309 via the spring-loaded assembly 5. The fixed connection, the spring-loaded component 5 is composed of bolts, washers and springs, and the bolt nuts and washers are elastically connected by springs. The washers press down to limit the bottom surface of the connecting foot 404. The sealing component 4 is a semi-enclosed material storage mechanism 3. When the test tube in the corresponding material inlet 308 is being tested, the semi-circular sealing plate 401 blocks the test tubes in the other three material inlets 308. The rubber gasket 402 seals the test tube opening to avoid cross-contamination of different samples and ensure the stability of sample molecules, thereby ensuring the accuracy of subsequent tests. When switching test tubes, the built-in motor of the power receiving plate 303 is activated to drive the turntable 307 to rotate. The turntable 307 rotates 90 degrees to switch the position of the material inlet 308. At the same time, the rotating body 306 rotates to push the sealing plate 401 to rise, preventing the rubber gasket 402 from rubbing molecules into the test tube and affecting the test results.

[0025] Working Principle: This embodiment provides a portable gas chromatograph. The housing 1 adopts a side cavity design. During use, the hinged side cover 2 is used for manual loading and unloading. The storage mechanism 3 has four material inlets 308. Samples can be placed into the corresponding material inlet 308 through test tubes for storage. Then, the side cover 2 is closed to seal the instrument. The power supply panel 303 has a built-in motor that drives the material tray 301 of the storage mechanism 3 to rotate and switch the corresponding test tubes, so that they are connected to the chromatographic column detection mechanism. The sealing assembly 4... In the semi-enclosed material storage mechanism 3, when the test tube in the corresponding material inlet 308 is being tested, the semi-circular sealing plate 401 blocks the opening of the test tube in the other three material inlets 308, and the rubber gasket 402 seals the opening of the test tube. When the motor built into the start-up switch 303 drives the turntable 307 to rotate and switch the test tube, the turntable 307 rotates ninety degrees to switch the position of the material inlet 308. At the same time, the rotating body 306 rotates and pushes the sealing plate 401 to rise, so as to prevent the friction molecules of the rubber gasket 402 from entering the test tube.

[0026] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A portable gas chromatograph, comprising a housing (1), a material storage mechanism (3), and a sealing assembly (4), characterized in that: The box body (1) is divided into an electrical cavity and a side cavity (101) by a longitudinal partition. A side cover (2) is rotatably installed at the opening of the side cavity (101) by a hinge. The storage mechanism (3) includes a fixed frame (305) fixed inside the side cover (2), a receiving plate (303) installed between the fixed frames (305) by bolts, a material tray (301) installed on the upper side of the receiving plate (303), and a turntable (307) rotatably installed on the upper side of the material tray (301). The sealing assembly (4) is installed on the upper side of the material tray (301) via the spring-loaded assembly (5). The sealing assembly (4) includes a sealing plate (401) located on the upper side of the material tray (301), connecting feet (404) fixed on both sides of the sealing plate (401), and a mating interface (403) opened in the middle of the sealing plate (401). The sealing plate (401) is a semi-circular structure that encloses the turntable (307).

2. The portable gas chromatograph according to claim 1, characterized in that: The lower inner end of the side cover (2) is fixed with a base (304), and the base (304) and the power receiving plate (303) are electrically connected through a plug and a pin.

3. A portable gas chromatograph according to claim 2, characterized in that: Both the material tray (301) and the electrical receiving tray (303) are provided with connecting ends (309) on their outer sides, and the fixing frame (305), the connecting ends (309) and the connecting feet (404) are fixedly connected by bolts.

4. A portable gas chromatograph according to claim 3, characterized in that: The turntable (307) has a circular array of feeding ports (308). A rotating body (306) is fixed in the middle of the upper surface of the turntable (307). The end face of the rotating body (306) is an involute spline structure, including multiple involute teeth evenly distributed in the circumferential direction. The rotating body (306) is adapted to the interface (403).

5. A portable gas chromatograph according to claim 4, characterized in that: A pressure rod (302) is fixed inside the tray (301), and the pressure rod (302) corresponds to the pressure switch inside the side cavity (101).

6. A portable gas chromatograph according to claim 5, characterized in that: The sealing plate (401) has a rubber pad (402) on its lower surface, and the rubber pad (402) corresponds to the material inlet (308). The connecting foot (404) is a frame structure with a longitudinal opening, and the connecting foot (404) is fixedly connected to the connecting end (309) through the spring-loaded component (5).

7. A portable gas chromatograph according to claim 6, characterized in that: The spring-loaded assembly (5) consists of a bolt, a washer, and a spring. The nut of the bolt and the washer are elastically connected by the spring, and the washer presses down on the bottom surface of the limiting connecting foot (404).

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