Gas chromatographic column heat preservation device

Abstract

The utility model discloses a gas chromatographic column heat preservation device which comprises a shell, a partition plate is arranged in the shell, and through grooves are formed in the two sides of the surface of the top of the partition plate in a penetrating mode. According to the device, the double-shaft motor is turned on, the double-shaft motor drives the screw rod to rotate, and the movable block on the screw rod is limited through the limiting rod, so that the movable block can move on the screw rod, the movable block drives the connecting block to move while moving, and the connecting block drives the abutting plate to move while moving; when the abutting plates abut against the two sides of the inner wall of the gas chromatographic column body, the gas chromatographic column body can be automatically limited and fixed to prevent the gas chromatographic column body from inclining and shifting, so that the firmness of the gas chromatographic column body in the shell is conveniently kept, and the service life of the gas chromatographic column is prolonged. The risk that the chromatographic column is damaged due to the fact that the device is prone to being impacted or collided in the moving process is reduced, and therefore the gas chromatographic column body can be protected.

Description

Technical Field

[0001] The utility model relates to the technical field of gas chromatography columns, in particular to a heat preservation device for a gas chromatography column. Background Art

[0002] Gas chromatography columns are widely used in petroleum, chemical industry, biochemistry, medicine and health, food industry, environmental protection and other aspects. In addition to being used for quantitative and qualitative analysis, it can also measure physical and chemical constants such as the distribution coefficient, activity coefficient, molecular weight and specific surface area of samples on the stationary phase. It is an instrument for analyzing and detecting each component in a mixed gas.

[0003] The existing Chinese patent with the publication number of CN105929094B discloses a heat preservation box for a gas chromatography column. The above-mentioned prior art solution has the following defects. Although the above-mentioned technical solution is applicable to the heat preservation of chromatographic columns of portable gas chromatographs or on-line gas chromatographs, the chromatographic columns assembled in the heat preservation box can be packed columns or capillary columns, or both packed columns and capillary columns are assembled at the same time. However, in the above-mentioned technical solution, the gas chromatography column cannot be limited and fixed, and it is easily impacted or collided during the movement of the device, which is extremely easy to cause damage to the chromatographic column, thus easily affecting the subsequent normal use of the gas chromatography column.

[0004] Therefore, we propose a heat preservation device for a gas chromatography column to solve the above drawbacks. Content of the Utility Model

[0005] The purpose of the utility model is to solve the defects existing in the prior art, and to propose a heat preservation device for a gas chromatography column.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a heat preservation device for a gas chromatography column, including a housing, a partition is arranged inside the housing, and through grooves are arranged on both sides of the top surface of the partition. A gas chromatography column body is arranged on the partition. A double-shaft motor is installed at the middle position of the upper surface of the bottom end of the housing, and a screw rod is fixedly connected to the output end of the double-shaft motor. A moving block is threadedly connected to the screw rod, and a connecting block is arranged on the top surface of the moving block through the through groove. A groove is arranged on one side of the top surface of the connecting block. An abutting plate is arranged on one side of the connecting block, and a stop block is arranged at the middle position of the one side surface of the abutting plate. One end of the stop block extends into the groove. A spring is arranged between the stop block and the groove. Limiting rods are arranged on both sides of the inner wall of the housing through the moving block. Heaters are installed on both sides of the inner wall of the housing above the partition. A top cover is arranged above the housing, and insertion blocks are arranged on both sides of the bottom surface of the top cover. One end of the insertion block extends into the slots arranged on both sides of the top surface of the housing.

[0007] Preferably, first magnets are provided on both side surfaces of the top cover, and second magnets are provided on both side surfaces of the housing, and the first magnets and the second magnets attract each other.

[0008] Preferably, handles are provided on both sides of the top surface of the top cover.

[0009] Preferably, a plug rod penetrates through the connecting block and is located below the stop block on one side surface of the abutting plate, and the plug rod is movably connected to the connecting block.

[0010] Preferably, the connecting block is movably connected to the through groove.

[0011] Preferably, the stop block is slidably connected to the groove.

[0012] Preferably, the abutting plate is of an arc-shaped structure.

[0013] Preferably, a heat preservation plate is provided on the bottom surface of the top cover inside the housing.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows;

[0015] (1) In the present utility model, the top cover is opened, the gas chromatography column body is placed on the top surface of the partition plate, the top cover is closed, and by using the heater, the inside of the housing can be heated, so that the gas chromatography column body can be heat-preserved. Among them, by turning on the biaxial motor, the biaxial motor drives the screw rod to rotate, and then the moving block on the screw rod is limited by the limiting rod, so that the moving block can move on the screw rod. While the moving block is moving, it drives the connecting block to move, and while the connecting block is moving, it drives the abutting plate to move. When the abutting plate abuts against both sides of the inner wall of the gas chromatography column body, the gas chromatography column body can be automatically limited and fixed, preventing the gas chromatography column body from tilting and shifting, so as to facilitate maintaining the firmness of the gas chromatography column body in the housing, reducing the risk that the chromatographic column is damaged due to being easily impacted or collided during the movement of the device, and thus protecting the gas chromatography column body.

[0016] (2) In the present utility model, after the top cover is closed, by using the first magnets on the top cover and the second magnets on the housing, the top cover can be fixed on the housing, which can improve the firmness of the top cover on the housing. Then, by using the housing and the top cover, the gas chromatography column body in the housing can be protected, which is beneficial to improving its protection effect. When the abutting plate contacts the inner wall of the gas chromatography column body, the abutting plate will move, which can compress the spring between the stop block and the groove. By using the spring, the impact force caused by the abutting plate on the gas chromatography column body can be reduced, so as to protect it and facilitate maintaining the subsequent normal use of the gas chromatography column body. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments.

[0018] Figure 1 Structural schematic diagram of a gas chromatography column heat preservation device proposed by the present invention;

[0019] Figure 2 Enlarged view A of a gas chromatography column heat preservation device proposed by the present invention;

[0020] Figure 3 Front view of a gas chromatography column heat preservation device proposed by the present invention;

[0021] Figure 4 Structural schematic diagram of the abutting plate of a gas chromatography column heat preservation device proposed by the present invention;

[0022] Figure 5 Structural schematic diagram of the partition plate of a gas chromatography column heat preservation device proposed by the present invention.

[0023] Legend:

[0024] 1. Housing; 2. Handle; 3. Top cover; 4. Heat preservation plate; 5. Gas chromatography column body; 6. Partition plate; 7. Through groove; 8. First magnet; 9. Second magnet; 10. Insert block; 11. Insert slot; 12. Heater; 13. Screw; 14. Limit rod; 15. Moving block; 16. Connecting block; 17. Biaxial motor; 18. Spring; 19. Groove; 20. Insert rod; 21. Abutting plate; 22. Stopper. Specific embodiments

[0025] To make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the following further elaborates on the present invention in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0026] Please refer to Figures 1-5, A gas chromatography column insulation device, comprising a housing 1. Inside the housing 1, there is a partition plate 6, and through slots 7 are provided on both sides of the top surface of the partition plate 6. A gas chromatography column body 5 is arranged on the partition plate 6. In the middle position of the upper surface of the bottom end of the housing 1, a biaxial motor 17 is installed, and a screw rod 13 is fixedly connected to the output end of the biaxial motor 17. A moving block 15 is threadedly connected to the screw rod 13, and a connecting block 16 is provided through the through slot 7 on the top surface of the moving block 15. A groove 19 is provided through one side of the top surface of the connecting block 16. One side of the connecting block 16 is provided with an abutting plate 21, and a stop block 22 is provided at the middle position of one side surface of the abutting plate 21. One end of the stop block 22 extends into the inside of the groove 19. A spring 18 is provided between the stop block 22 and the groove 19. Limiting rods 14 are provided through the moving block 15 on both sides of the inner wall of the housing 1. Heaters 12 are installed on both sides of the inner wall of the housing 1 above the partition plate 6. Above the housing 1, there is a top cover 3, and insertion blocks 10 are provided on both sides of the bottom surface of the top cover 3. One end of the insertion block 10 extends into the inside of the insertion slots 11 opened on both sides of the top surface of the housing 1. Open the top cover 3, place the gas chromatography column body 5 on the top surface of the partition plate 6, close the top cover 3, and by using the heaters 12, the inside of the housing 1 can be heated, thereby insulating the gas chromatography column body 5. Among them, by turning on the biaxial motor 17, the biaxial motor 17 drives the screw rod 13 to rotate. Then, the limiting rods 14 limit the moving block 15 on the screw rod 13. While the moving block 15 moves, it drives the connecting block 16 to move. While the connecting block 16 moves, it drives the abutting plate 21 to move. When the abutting plate 21 abuts against both sides of the inner wall of the gas chromatography column body 5, the gas chromatography column body 5 can be automatically limited and fixed, preventing the gas chromatography column body 5 from tilting and shifting, thereby facilitating maintaining the firmness of the gas chromatography column body 5 in the housing 1 and reducing the risk of damage to the chromatographic column caused by being easily impacted or collided during the movement of the device, thus protecting the gas chromatography column body 5.

[0027] In this embodiment: First magnets 8 are provided on both side surfaces of the top cover 3, and second magnets 9 are provided on both side surfaces of the housing 1. The first magnets 8 and the second magnets 9 attract each other.

[0028] Specifically, after closing the top cover 3, by using the first magnets 8 on the top cover 3 and the second magnets 9 on the housing 1, the top cover 3 can be fixed on the housing 1, which can improve the firmness of the top cover 3 on the housing 1.

[0029] In this embodiment: Handles 2 are provided on both sides of the top surface of the top cover 3.

[0030] Specifically, by using the handles 2, it is convenient to pull the top cover 3, thereby facilitating removing the top cover 3 from the housing 1.

[0031] In this implementation: One side surface of the abutting plate 21 is provided with a plug rod 20 penetrating through the connecting block 16 below the stop block 22, and the plug rod 20 is movably connected to the connecting block 16.

[0032] Specifically, by using the plug rod 20, the abutting plate 21 can be limited, so as to facilitate maintaining the stability of the abutting plate 21 during the movement process.

[0033] In this implementation: The connecting block 16 is movably connected to the through groove 7.

[0034] Specifically, it is convenient for the connecting block 16 to move in the through groove 7, so as to drive the abutting plate 21 to move, and it is convenient to limit and fix the gas chromatography column body 5.

[0035] In this implementation: The stop block 22 is slidably connected to the groove 19.

[0036] Specifically, the stop block 22 can move in the groove 19, and can squeeze the spring 18 in the groove 19, so as to reduce the extrusion force exerted by the abutting plate 21 on the gas chromatography column body 5.

[0037] In this implementation: The abutting plate 21 has an arc-shaped structure.

[0038] Specifically, it is convenient to limit and fix the gas chromatography column body 5, and is convenient for maintaining the firmness of the gas chromatography column body 5 in the housing 1.

[0039] In this implementation: The bottom surface of the top cover 3 is provided with a heat preservation plate 4 inside the housing 1.

[0040] Specifically, by using the heat preservation plate 4, the heat dissipation in the housing 1 can be reduced, so as to keep the gas chromatography column body 5 warm.

[0041] In this implementation: The control panel controls the circuit, which can be realized by simple programming by those skilled in the art, and belongs to the common knowledge in this field. Only its use is carried out without modification, so the control method and circuit connection will not be described in detail.

[0042] Working principle: Open the top cover 3, place the gas chromatography column body 5 on the top surface of the partition plate 6, close the top cover 3, and by using the heater 12, the inside of the housing 1 can be heated, so that the gas chromatography column body 5 can be kept warm. Among them, by turning on the biaxial motor 17, the biaxial motor 17 drives the screw 13 to rotate, and then the limiting rod 14 limits the moving block 15 on the screw 13. While moving, the moving block 15 drives the connecting block 16 to move. While moving, the connecting block 16 drives the abutting plate 21 to move. When the abutting plate 21 abuts against both sides of the inner wall of the gas chromatography column body 5, the gas chromatography column body 5 can be automatically limited and fixed, preventing the gas chromatography column body 5 from tilting and shifting, so as to facilitate maintaining the firmness of the gas chromatography column body 5 in the housing 1, reducing the risk that the chromatographic column is damaged due to being easily impacted or collided during the movement of the device, thereby protecting the gas chromatography column body 5. Among them, after closing the top cover 3, by using the first magnet 8 on the top cover 3 and the second magnet 9 on the housing 1, the top cover 3 can be fixed on the housing 1, which can improve the firmness of the top cover 3 on the housing 1. By using the housing 1 and the top cover 3, the gas chromatography column body 5 in the housing 1 can be protected, which is beneficial to improving its protection effect. Among them, when the abutting plate 21 contacts the inner wall of the gas chromatography column body 5, the abutting plate 21 will move, which can squeeze the spring 18 between the stop block 22 and the groove 19. By using the spring 18, the impact force of the abutting plate 21 on the gas chromatography column body 5 can be reduced, thereby protecting it and facilitating the subsequent normal use of the gas chromatography column body 5.

[0043] It should be understood that the above specific embodiments of the present invention are only used for exemplary illustration or explanation of the principle of the present invention, and do not constitute a limitation to the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modification examples falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A gas chromatography column heat preservation device, comprising a housing (1), characterized in that: A partition (6) is provided inside the shell (1), and through grooves (7) are provided on both sides of the top surface of the partition (6), a gas chromatograph column body (5) is provided on the partition (6), a dual-axis motor (17) is installed at the middle position of the upper surface of the bottom end of the shell (1), and a screw (13) is fixedly connected to the output end of the dual-axis motor (17), a moving block (15) is threadedly connected to the screw (13), and a connecting block (16) is provided on the top surface of the moving block (15) through the through groove (7), a groove (19) is provided on one side of the top surface of the connecting block (16), and a contact plate (21) is provided on one side of the connecting block (16), and A stopper (22) is provided at the middle position of one side surface of the abutment plate (21), one end of the stopper (22) extends to the inside of the groove (19), a spring (18) is provided between the stopper (22) and the groove (19), limiting rods (14) are provided on both sides of the inner wall of the shell (1) penetrating the moving block (15), heaters (12) are installed on both sides of the inner wall of the shell (1) above the partition (6), a top cover (3) is provided above the shell (1), and plug blocks (10) are provided on both sides of the bottom surface of the top cover (3), one end of the plug block (10) extends to the inside of a slot (11) opened on both sides of the top surface of the shell (1).

2. A gas chromatography column insulation device according to claim 1, characterized in that: First magnets (8) are provided on both side surfaces of the top cover (3), and second magnets (9) are provided on both side surfaces of the shell (1), and the first magnets (8) and the second magnets (9) attract each other.

3. A gas chromatography column insulation device according to claim 1, characterized in that: Handles (2) are provided on both sides of the top surface of the top cover (3).

4. A gas chromatography column insulation device according to claim 1, characterized in that: A side surface of the abutment plate (21) is located below the stopper (22) and is provided with an insertion rod (20) penetrating the connection block (16), and the insertion rod (20) is movably connected to the connection block (16).

5. A gas chromatography column insulation device according to claim 1, characterized in that: The connecting block (16) is movably connected to the through slot (7).

6. A gas chromatography column insulation device according to claim 1, characterized in that: The stopper (22) is slidably connected to the groove (19).

7. A gas chromatography column insulation device according to claim 1, characterized in that: The abutment plate (21) is an arc-shaped structure.

8. A gas chromatography column insulation device according to claim 1, characterized in that: The bottom surface of the top cover (3) is located inside the shell (1) and is provided with a heat preservation plate (4).

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