Gas chromatograph

Abstract

The utility model relates to the technical field of gas chromatographs, and discloses a gas chromatograph which comprises a detector shell, a protective cover is arranged on the left side of the top end of the detector shell, a handle is fixed at the top end of the left side of the protective cover, a first fixing foot is fixed at the rear end of the right side of the protective cover, and a second fixing foot is fixed at the rear end of the right side of the protective cover. A first fixing frame is arranged at the rear end of the right side of the top of the detector shell, and the first fixing foot is hinged to the interior of the first fixing frame. In the using process of the gas chromatograph, the protective cover is arranged outside the sample inlet in the left side of the top end of the detector shell, the protective cover can be used for performing auxiliary outer cover sealing on the outer side of the sample inlet, and in the placing process of the chromatograph, the outer side of the sample inlet can be subjected to protection and dust prevention, so that pollution to the position of a sample adding opening is reduced; when the gas chromatograph is used, the protective cover is turned over rightwards to be opened to expose the sample inlet, and the problem that the outer side of the sample adding opening of the gas chromatograph is inconvenient to protect and prevent dust is solved.

Description

Technical Field

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

[0002] Gas chromatography (GC) is an analytical instrument based on chromatographic separation technology, primarily used for qualitative and quantitative analysis of complex mixtures containing multiple components. It uses a gas as the mobile phase, a chromatographic column to separate the components in a mixture, and then a detector to detect and analyze them. GC is widely used in environmental monitoring, analysis of air pollutants, pesticide residue detection in food safety, and analysis of drug components in pharmaceuticals.

[0003] However, in actual operation, the sample addition port of a gas chromatograph is usually directly exposed. During long-term storage, a large amount of dust can easily accumulate on the outside, causing contamination of the injection port. Therefore, there are no measures to protect the sample addition port of the gas chromatograph from dust.

[0004] Now, a novel gas chromatograph is proposed to address the aforementioned shortcomings. Utility Model Content

[0005] The purpose of this invention is to provide a gas chromatograph to solve the problem mentioned in the background art of the inconvenience of external protection and dust prevention for the sample addition port of the gas chromatograph.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a gas chromatograph, comprising a detector housing, a protective cover provided on the left side of the top of the detector housing, and a handle fixed to the top of the left side of the protective cover; a fixing foot one fixed to the rear end of the right side of the protective cover; a fixing frame one provided at the rear end of the top right side of the detector housing, the fixing foot one being hinged to the interior of the fixing frame one; a fixing foot two fixed to the front end of the right side of the protective cover; a fixing frame two provided at the front end of the top right side of the detector housing, the fixing foot two being hinged to the interior of the fixing frame two.

[0007] As a further technical solution of this utility model, the bottom ends of the first fixing bracket and the second fixing bracket are respectively bonded and fixed to the top end of the detector housing, and the protective cover is an acrylic material component.

[0008] As a further technical solution of this utility model, a display screen is installed inside the front right side of the detector housing, a fixing frame is pasted and fixed to the top of the front right side of the detector housing, and a viewing plate is provided at the front end of the fixing frame. A knob is provided at each of the four corners of the front end of the viewing plate, and mounting feet are fixed at each of the four corners of the front end of the fixing frame, and threaded inner holes are provided inside the front end of the mounting feet.

[0009] As a further technical solution of this utility model, the knob is provided with an external thread, the insertion hole penetrates the interior of the viewing plate, and the rear end of the knob penetrates the interior of the insertion hole and is threadedly rotatably connected in the threaded inner hole.

[0010] As a further technical solution of this utility model, the viewing panel is a transparent acrylic material component.

[0011] As a further technical solution of this utility model, a bottom sleeve is fixed inside the four corners of the bottom of the detector housing, and a threaded groove is opened inside the bottom sleeve. A foot is provided at the bottom of the bottom sleeve, and a connecting rod is fixed at the top of the foot. A locking nut is rotatably connected to the external thread of the connecting rod.

[0012] As a further technical solution of this utility model, the bottom end of the foot is fixed with a bottom pad, and the top end of the connecting rod is threadedly rotatably connected in the threaded groove.

[0013] As a further technical solution of this utility model, an injection port is installed and fixed on the left side of the top of the detector housing, a chromatographic column is installed inside the detector housing, and a control panel is provided on the right side of the front end of the detector housing.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the gas chromatograph not only facilitates the external protection and dust prevention of the sample addition port of the gas chromatograph, facilitates the scratch protection of the outside of the chromatograph display component, but also facilitates the support of the bottom of the chromatograph.

[0015] The chromatograph is equipped with a detector housing, a protective cover, a handle, a fixing foot one, a fixing bracket one, a fixing bracket two, and a fixing foot two. During use, a protective cover is installed on the outside of the sample inlet on the top left side of the detector housing. The protective cover can be used to provide an auxiliary outer cover to seal the outside of the sample inlet. During the placement of the chromatograph, the outside of the sample inlet can be protected from dust, reducing contamination at the sample addition port. When using the chromatograph, the protective cover can be flipped to the right to expose the sample inlet.

[0016] With a viewing plate, display screen, fixed frame, mounting feet, knobs, sockets, and threaded internal holes, the chromatograph can be protected from scratches and impacts by installing and fixing a viewing plate at the front of the display screen, thus reducing damage to the display components.

[0017] Equipped with feet, a detector housing, a threaded groove on the bottom sleeve, a locking nut, a connecting rod, and an anti-slip pad, the chromatograph is stably supported when placed on the tabletop using the four sets of feet at the bottom. When there is a height difference between the left and right or front and back of the tabletop, the locking nut can be loosened from the outside of the connecting rod downwards, and the vertical position of the feet can be adjusted by rotating the connecting rod. This adjustable support assembly facilitates stable support of the bottom of the chromatograph. Attached Figure Description

[0018] Figure 1 This is a frontal cross-sectional view of the present invention.

[0019] Figure 2 This is a top view of the protective cover structure of this utility model;

[0020] Figure 3 This is a partial sectional view of the side panel of this utility model.

[0021] Figure 4 This utility model Figure 1 A magnified structural diagram at point A in the diagram.

[0022] In the diagram: 1. Base; 2. Detector housing; 3. Chromatographic column; 4. Inlet; 5. Protective cover; 6. Handle; 7. Fixing foot one; 8. Fixing bracket one; 9. Viewing panel; 10. Display screen; 11. Fixing frame; 12. Mounting foot; 13. Base pad; 14. Fixing bracket two; 15. Fixing foot two; 16. Knob; 17. Insertion hole; 18. Threaded inner hole; 19. Base sleeve; 20. Threaded groove; 21. Locking nut; 22. Connecting rod; 23. Anti-slip pad; 24. Control panel. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4This utility model provides an embodiment: a gas chromatograph, including a detector housing 2, a protective cover 5 is provided on the left side of the top of the detector housing 2, and a handle 6 is fixed to the top of the left side of the protective cover 5. A fixing foot 7 is fixed to the rear end of the right side of the protective cover 5. A fixing frame 8 is provided at the rear end of the top right side of the detector housing 2. The fixing foot 7 is hinged to the interior of the fixing frame 8. A fixing foot 15 is fixed to the front end of the right side of the protective cover 5. A fixing frame 14 is provided to the front end of the top right side of the detector housing 2. The fixing foot 15 is hinged to the interior of the fixing frame 14.

[0025] The bottom ends of the first fixing bracket 8 and the second fixing bracket 14 are respectively bonded and fixed to the top end of the detector housing 2, and the protective cover 5 is an acrylic component.

[0026] Specifically, such as Figure 1 and Figure 2 As shown, a protective cover 5 is provided on the outside of the sample inlet 4 on the left side of the top of the detector housing 2. The protective cover 5 can be used to cover and seal the outside of the sample inlet 4, protect the outside of the sample inlet 4 from dust, and reduce the contamination of the sample addition port. When using the chromatograph, the protective cover 5 can be flipped to the right to open and expose the sample inlet 4.

[0027] The display screen 10 is installed inside the front right side of the detector housing 2. The top of the front right side of the detector housing 2 is attached to the fixing frame 11, and the front end of the fixing frame 11 is provided with a viewing plate 9. The four corners of the front end of the viewing plate 9 are respectively provided with knobs 16. The four corners of the front end of the fixing frame 11 are respectively fixed with mounting feet 12, and the front end of the mounting feet 12 is provided with threaded inner holes 18. The knobs 16 are provided with external threads. The insertion hole 17 passes through the interior of the viewing plate 9. The rear end of the knob 16 passes through the interior of the insertion hole 17 and is threadedly connected to the threaded inner hole 18. The viewing plate 9 is a transparent acrylic component.

[0028] Specifically, such as Figures 1-3 As shown, by installing and fixing a viewing panel 9 at the front end of the display screen 10, the front end of the display screen 10 can be covered to prevent scratches and collisions. At the same time, the transparent viewing panel 9 will not affect the display content of the display screen 10.

[0029] The bottom of the detector housing 2 has four corners with a base sleeve 19 fixed inside. The base sleeve 19 has a threaded groove 20 inside. The bottom of the base sleeve 19 has a foot 1, and the top of the foot 1 has a connecting rod 22 fixed. The connecting rod 22 is threadedly connected to a locking nut 21. The top of the connecting rod 22 is threadedly connected to the threaded groove 20.

[0030] Specifically, such as Figure 1 and Figure 4As shown, the four sets of feet 1 at the bottom can support the chromatograph. When there is a height difference between the left and right or front and back positions of the platform, the locking nut 21 can be loosened from the outside of the connecting rod 22 and the vertical position of the feet 1 can be adjusted by rotating the connecting rod 22. The adjustable support assembly makes it easy to adjust and support the bottom of the chromatograph.

[0031] An inlet 4 is fixedly installed on the left side of the top of the detector housing 2. A chromatographic column 3 is installed inside the detector housing 2. A control panel 24 is set on the right side of the front end of the detector housing 2.

[0032] Working Principle: In use, the sample is introduced into the injection port 4 using a micro-syringe. Using gas as the mobile phase, column chromatography with a flushing method is employed for sample separation and analysis. Simultaneously, a protective cover 5 is installed on the outside of the injection port 4 at the top left of the gas chromatograph housing 2, providing auxiliary external sealing and dust protection. Furthermore, a viewing plate 9 is installed and fixed at the front of the display screen 10 to protect it from scratches and impacts. When the chromatograph is placed on a tabletop, it is supported by four sets of feet 1. If there is a height difference between the left and right or front and back of the tabletop, the locking nut 21 can be loosened downwards from the outside of the connecting rod 22, allowing adjustment of the foot 1's position by rotating the connecting rod 22, thus adjusting the support assembly.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A gas chromatograph, comprising a detector housing (2), characterized in that: A protective cover (5) is provided on the left side of the top of the detector housing (2), and a handle (6) is fixed on the top of the left side of the protective cover (5). A fixing foot (7) is fixed on the rear end of the right side of the protective cover (5). A fixing frame (8) is provided on the rear end of the top right side of the detector housing (2). The fixing foot (7) and the interior of the fixing frame (8) are hinged together. A fixing foot (15) is fixed on the front end of the right side of the protective cover (5). A fixing frame (14) is provided on the front end of the top right side of the detector housing (2). The fixing foot (15) and the interior of the fixing frame (14) are hinged together.

2. A gas chromatograph according to claim 1, characterized in that: The bottom ends of the first fixing bracket (8) and the second fixing bracket (14) are respectively bonded and fixed to the top end of the detector housing (2), and the protective cover (5) is an acrylic material component.

3. A gas chromatograph according to claim 1, characterized in that: The detector housing (2) has a display screen (10) installed inside the front right side. A fixing frame (11) is attached and fixed to the top of the front right side of the detector housing (2). A viewing plate (9) is provided at the front end of the fixing frame (11). A knob (16) is provided at the four corners of the front end of the viewing plate (9). Mounting feet (12) are fixed at the four corners of the front end of the fixing frame (11). A threaded inner hole (18) is provided inside the front end of the mounting feet (12).

4. A gas chromatograph according to claim 1, characterized in that: The knob (16) has an external thread on its exterior. The insertion hole (17) penetrates the interior of the viewing plate (9). The rear end of the knob (16) penetrates the interior of the insertion hole (17) and is threadedly connected to the threaded inner hole (18).

5. A gas chromatograph according to claim 1, characterized in that: The viewing panel (9) is a transparent acrylic material component.

6. A gas chromatograph according to claim 1, characterized in that: The detector housing (2) has a base sleeve (19) fixed inside the four corners at the bottom, and the base sleeve (19) has a threaded groove (20) inside. The bottom end of the base sleeve (19) is provided with a foot (1), and the top end of the foot (1) is fixed with a connecting rod (22), and the external thread of the connecting rod (22) is rotatably connected with a locking nut (21).

7. A gas chromatograph according to claim 1, characterized in that: The bottom end of the foot (1) is fixed with a bottom pad (13), and the top end of the connecting rod (22) is threadedly connected to the threaded groove (20).

8. A gas chromatograph according to claim 1, characterized in that: An inlet (4) is fixedly installed on the left side of the top of the detector housing (2), a chromatographic column (3) is installed inside the detector housing (2), and a control panel (24) is provided on the right side of the front end of the detector housing (2).

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