Novel gas chromatographic column frame

Abstract

The utility model discloses a novel gas chromatographic column frame. The novel gas chromatographic column frame comprises a frame box and a moving groove, according to the utility model, the top frame capable of synchronously moving outwards and inwards is adopted, when a chromatographic column is mounted and fixed, a worker can rotate and adjust a hand wheel according to the diameter of an annular structure formed by the chromatographic column, and the hand wheel rotates to drive a rotating rod to rotate, so that a worm is driven to rotate, a worm gear is driven to rotate, and a driving bevel gear is driven to rotate; the lead screw rotates to drive the movable seat to synchronously move outwards and inwards, so that adjustment is completed, a worker can insert an annular chromatographic column between protection pads between the top frames, then the top cover is rotated until a magnet block and the top frames are magnetically fixed, and then the chromatographic column can be mounted and fixed; according to the device, synchronous adjustment of the top frame can be completed only by rotating the hand wheel, the working efficiency is high, use is more convenient, a worker only needs to rotate the hand wheel and close the top covers one by one to complete fixed installation, and operation is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of chromatographic columns, in particular to a novel gas chromatographic column rack. Background Art

[0002] Gas chromatography columns are widely used in petroleum, chemical industry, biochemistry, medicine and health, food industry, environmental protection and other fields. In addition to being used for quantitative and qualitative analysis, they can also determine the physical and chemical constants of samples on the stationary phase, such as the distribution coefficient, activity coefficient, molecular weight and specific surface area. Gas chromatography columns are mostly capillary ring structures.

[0003] After searching, it was found that the announcement number was CN211825867U, and the name was a new type of gas chromatography column rack. The application proposed that the existing gas chromatography column rack cannot adapt to gas chromatography columns of different sizes, and the existing gas chromatography column rack is not convenient for storing and retrieving gas chromatography columns, which greatly wastes the time of staff. The size is conveniently adjusted through structures such as telescopic rod slots, and the gas chromatography column is protected by the setting of protective pads.

[0004] The existing technology has the following problems:

[0005] 1. This application adjusts the first fixed rod through a telescopic rod. The first fixed rod can only be adjusted in height. When fixing the annular gas chromatography column, the adjustment synchronization rate of the first fixed rod and the second fixed rod is low, and the independent adjustment of the telescopic rod is also relatively troublesome. At the same time, the vertical installation method makes the overall center of gravity of the gas chromatography column higher and the stability worse. At the same time, the first fixed plate and the second fixed plate of this application lack a fixing structure, and the hinged first fixed plate and the second fixed plate have a poor limiting effect on the gas chromatography column, and further improvements can be made.

[0006] To this end, we proposed a new gas chromatography column rack to solve the above disadvantages. Utility Model Content

[0007] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a new type of gas chromatography column rack.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a novel gas chromatography column rack, comprising a rack box and a movable slot, the top surface of the rack box is provided with a movable slot, and the inside of the rack box is slidably connected to a movable seat, and the movable seat passes through the movable slot and is slidably connected to the movable slot, the top surface of the movable seat is fixedly installed with a top frame, and the top surface of the top frame is hinged with a top cover through a hinge, and a protective pad is fixedly bonded to the inner surface of the top frame, the bottom surface of the rack box passes through a transmission shaft that is rotatably connected, and a worm gear is fixedly installed on the bottom surface of the transmission shaft, and the top surface of the transmission shaft is fixedly installed with a worm gear. A driving bevel gear is fixedly installed, and a screw rod is provided inside the frame box, and one end of the screw rod is rotatably connected to the inner wall of the frame box, and the other end of the screw rod is rotatably connected to the bottom surface of the frame box through a first bearing seat, the other end of the screw rod is fixedly connected to a driven bevel gear, and the driven bevel gear is meshed with the driving bevel gear, and the screw rod passes through the movable seat and is threadedly connected to the movable seat, the bottom surface of the frame box is rotatably connected to a rotating rod through a second bearing seat, and one end of the rotating rod is fixedly connected to a worm, and the worm is meshed with the worm gear, and the other end of the rotating rod is fixedly connected to a handwheel.

[0009] Preferably, a magnet block is embedded in the bottom surface of the other end of the top cover, and the top frame is made of magnetic metal material.

[0010] Preferably, the top frame and the movable groove are arranged in multiple groups at equal angles along the vertical center axis of the frame box, and the distance between the top frame and the vertical center axis of the frame box is the same.

[0011] Preferably, the top opening of the pad is provided with a bell mouth, and the pad adopts a flexible structure.

[0012] Preferably, a bracelet is fixedly mounted on the top surface of the top cover, and the inner diameter of the bracelet is greater than 3 cm.

[0013] Preferably, the outer wall of the movable seat abuts against the inner wall of the movable groove, and the movable groove is distributed in a cross shape.

[0014] Preferably, a support leg is fixedly installed at the corner of the bottom surface of the frame box, and the height of the support leg is greater than the outer diameter of the handwheel.

[0015] Preferably, the transmission shaft is rotatably connected to the bottom surface of the frame box via a limit bearing, and the transmission shaft, the worm and the frame box are coaxially arranged.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] (1) The utility model adopts a top frame that can be moved outward and inward synchronously. When installing and fixing the chromatographic column, the staff can rotate the adjustment hand wheel according to the diameter of the annular structure formed by the chromatographic column. The rotation of the hand wheel drives the rotating rod to rotate, and then drives the worm to rotate, thereby driving the worm wheel to rotate, and then drives the driving bevel gear to rotate, and then drives the driven bevel gear to rotate, and drives the screw to rotate. The rotation of the screw drives the moving seat to move outward and inward synchronously to complete the adjustment. The staff can insert the annular chromatographic column between the pads between the top frames, and then rotate the top cover until the magnet block and the top frame are magnetically fixed, and the chromatographic column can be installed and fixed. The device only needs to rotate the hand wheel to complete the synchronous adjustment of the top frame, which has high work efficiency and is more convenient to use. The staff only needs to rotate the hand wheel and close the top cover one by one to complete the fixed installation, and the operation is convenient and quick.

[0018] (2) The utility model adopts a top cover, which is magnetically connected to the top frame through a magnet block. The top frame is made of magnetic metal material. When the staff opens the top cover, they can lift and rotate it through the wristband to open the top cover, which improves the convenience of operation and makes the structure simpler and more practical. At the same time, the frame box adopts a horizontal structure. Compared with the traditional vertical structure, the stability of the chromatographic column is higher after it is inserted into the top frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments.

[0020] Figure 1 This is a schematic diagram of the external structure of a new type of gas chromatography column rack proposed in the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of a new type of gas chromatography column rack proposed in the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the top frame proposed by the utility model;

[0023] Figure 4 This is an enlarged view of node A of a new type of gas chromatography column rack proposed in this utility model.

[0024] Legend:

[0025] 1. Frame box; 2. Moving slot; 3. Screw; 4. Moving seat; 5. Top frame; 6. Protective pad; 7. Top cover; 8. Brace; 9. Magnet block; 10. Hinge; 11. First bearing seat; 12. Rotating rod; 13. Second bearing seat; 14. Handwheel; 15. Worm; 16. Worm gear; 17. Support leg; 18. Driven bevel gear; 19. Driving bevel gear; 20. Transmission shaft. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0027] Please refer to Figure 1-4 A novel gas chromatography column rack comprises a rack box 1 and a movable slot 2. The top surface of the rack box 1 is provided with a movable slot 2, and a movable seat 4 is slidably connected to the inside of the rack box 1, and the movable seat 4 passes through the movable slot 2 and is slidably connected to the movable slot 2. A top rack 5 is fixedly installed on the top surface of the movable seat 4. The top rack 5 is a slot-shaped structure, and the top surface of the top rack 5 is hinged with a top cover 7 through a hinge 10, and a protective pad 6 is fixedly bonded to the inner surface of the top rack 5. The bottom surface of the rack box 1 passes through and is rotatably connected to a transmission shaft 20, and a worm gear 16 is fixedly installed on the bottom surface of the transmission shaft 20, and a driving bevel gear 19 is fixedly installed on the top surface of the transmission shaft 20. A screw rod 3 is provided inside the rack box 1. One end of the screw rod 3 is rotatably connected to the inner wall of the frame box 1, the screw rod 3 is located directly below the movable groove 2, and the other end of the screw rod 3 is rotatably connected to the inner bottom surface of the frame box 1 through the first bearing seat 11, the other end of the screw rod 3 is fixedly connected to the driven bevel gear 18, and the driven bevel gear 18 is engaged with the driving bevel gear 19, and the screw rod 3 passes through the movable seat 4 and is threadedly connected to the movable seat 4, the bottom surface of the frame box 1 is rotatably connected to the rotating rod 12 through the second bearing seat 13, and one end of the rotating rod 12 is fixedly connected to the worm 15, and the worm 15 is engaged with the worm gear 16, and the other end of the rotating rod 12 is fixedly connected to the handwheel 14, and the handwheel 14 facilitates the rotation of the rotating rod 12.

[0028] When the chromatographic column is installed and fixed, the staff can turn the adjusting hand wheel 14 according to the diameter of the annular structure formed by the chromatographic column. The rotation of the hand wheel 14 drives the rotating rod 12 to rotate, and then drives the worm 15 to rotate, thereby driving the worm gear 16 to rotate, and then drives the driving bevel gear 19 to rotate, and then drives the driven bevel gear 18 to rotate, drives the screw rod 3 to rotate, and the rotation of the screw rod 3 drives the movable seat 4 to move outward and inward synchronously to complete the adjustment. The staff can insert the annular chromatographic column between the protective pads 6 between the top frame 5, and then rotate the top cover 7 until the magnet block 9 and the top frame 5 are magnetically fixed to install and fix the chromatographic column. The device only needs to turn the hand wheel 14 to complete the synchronous adjustment of the top frame 5, which has high work efficiency and is more convenient to use. The staff only needs to turn the hand wheel 14 and close the top cover 7 one by one to complete the fixed installation, and the operation is convenient and quick.

[0029] Specifically, a magnet block 9 is embedded in the bottom surface of the other end of the top cover 7, and the top frame 5 is made of magnetic metal material.

[0030] In this embodiment: the top cover 7 is magnetically connected to the top frame 5 through a magnet block 9, and the top frame 5 is made of magnetic metal material. When the staff opens the top cover 7, they can lift and rotate the top cover 7 through the wristband 8, which improves the convenience of operation and makes the structure simpler and more practical. At the same time, the frame box 1 adopts a horizontal structure. Compared with the traditional vertical structure, the stability of the chromatographic column is higher after it is inserted into the top frame 5.

[0031] Specifically, multiple groups of top frames 5 and movable slots 2 are arranged at equal angles along the vertical center axis of the frame box 1 , and the distance between the top frames 5 and the vertical center axis of the frame box 1 is the same.

[0032] In this embodiment, the uniform distribution of the top frame 5 facilitates the synchronous outward and inward movement of the top frame 5 by the same distance, thereby improving the synchronization rate of the adjustment.

[0033] Specifically, a trumpet mouth is provided at the top of the protective pad 6, and the protective pad 6 adopts a flexible structure.

[0034] In this embodiment, the flared mouth of the top of the protective pad 6 facilitates insertion into the gas chromatography column, and the flexible protective pad 6 prevents the gas chromatography column from being damaged.

[0035] Specifically, a wristband 8 is fixedly mounted on the top surface of the top cover 7 , and the inner diameter of the wristband 8 is greater than 3 cm.

[0036] In this embodiment: the wristband 8 facilitates the operation of the top cover 7.

[0037] Specifically, the outer wall of the movable seat 4 abuts against the inner wall of the movable groove 2, and the movable groove 2 is distributed in a cross shape.

[0038] In this embodiment, the moving groove 2 serves as a guide for the moving seat 4 , facilitating the stable movement of the moving seat 4 and preventing the moving seat 4 from rotating.

[0039] Specifically, a support leg 17 is fixedly installed at a corner of the bottom surface of the frame box 1 , and the height of the support leg 17 is greater than the outer diameter of the hand wheel 14 .

[0040] In this embodiment, the legs 17 facilitate raising the hand wheel 14 to facilitate rotating the hand wheel 14 .

[0041] Specifically, the transmission shaft 20 is rotatably connected to the bottom surface of the frame box 1 through a limit bearing, and the transmission shaft 20, the worm 15 and the frame box 1 are coaxially arranged.

[0042] In this embodiment: the stability of the regulation is improved.

[0043] Working principle: When installing and fixing the chromatographic column, the staff can rotate the adjustment hand wheel 14 according to the diameter of the annular structure formed by the chromatographic column. The rotation of the hand wheel 14 drives the rotating rod 12 to rotate, and then drives the worm 15 to rotate, thereby driving the worm gear 16 to rotate, and then drives the driving bevel gear 19 to rotate, and then drives the driven bevel gear 18 to rotate, and drives the screw rod 3 to rotate. The rotation of the screw rod 3 drives the moving seat 4 to move outward and inward synchronously to complete the adjustment. The staff can insert the annular chromatographic column between the pads 6 between the top frame 5, and then rotate the top cover 7 until the magnet block 9 is magnetically fixed to the top frame 5, and then it can be installed and fixed. Chromatographic column, this device only needs to turn the hand wheel 14 to complete the synchronous adjustment of the top frame 5, with high work efficiency and more convenient use. The staff only needs to turn the hand wheel 14 and close the top cover 7 one by one to complete the fixed installation, and the operation is convenient and quick. At the same time, the top cover 7 is magnetically connected to the top frame 5 through the magnet block 9. The top frame 5 is made of magnetic metal material. When the staff opens the top cover 7, they can lift and rotate the top cover 7 through the wristband 8 to open it, which improves the convenience of operation and the structure is simpler and more practical. At the same time, the frame box 1 adopts a horizontal structure. Compared with the traditional vertical structure, the chromatographic column is more stable after being inserted into the top frame 5.

[0044] It should be understood that the above-described specific embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.

Claims

1. A novel gas chromatography column rack, comprising a rack box (1) and a movable slot (2), characterized in that: The top surface of the frame box (1) is provided with a moving groove (2), and a moving seat (4) is slidably connected inside the frame box (1), and the moving seat (4) passes through the moving groove (2) and is slidably connected to the moving groove (2), a top frame (5) is fixedly installed on the top surface of the moving seat (4), and a top cover (7) is hingedly connected to the top surface of the top frame (5) through a hinge (10), and a protective pad (6) is fixedly bonded to the inner surface of the top frame (5), a transmission shaft (20) is rotatably connected to the bottom surface of the frame box (1), and a worm gear (16) is fixedly installed on the bottom surface of the transmission shaft (20), and a driving bevel gear (19) is fixedly installed on the top surface of the transmission shaft (20), a screw rod (3) is provided inside the frame box (1), and One end of the screw rod (3) is rotatably connected to the inner wall of the frame box (1), and the other end of the screw rod (3) is rotatably connected to the inner bottom surface of the frame box (1) through a first bearing seat (11), the other end of the screw rod (3) is fixedly connected to a driven bevel gear (18), and the driven bevel gear (18) is meshed with a driving bevel gear (19), and the screw rod (3) passes through the movable seat (4) and is threadedly connected to the movable seat (4), the bottom surface of the frame box (1) is rotatably connected to a rotating rod (12) through a second bearing seat (13), and one end of the rotating rod (12) is fixedly connected to a worm (15), and the worm (15) is meshed with a worm wheel (16), and the other end of the rotating rod (12) is fixedly connected to a hand wheel (14).

2. A novel gas chromatography column holder according to claim 1, characterized in that: A magnet block (9) is embedded in the bottom surface of the other end of the top cover (7), and the top frame (5) is made of magnetic metal material.

3. A novel gas chromatography column holder according to claim 1, characterized in that: The top frame (5) and the movable groove (2) are arranged in multiple groups at equal angles along the vertical center axis of the frame box (1), and the distance between the top frame (5) and the vertical center axis of the frame box (1) is the same.

4. A novel gas chromatography column holder according to claim 1, characterized in that: The top opening of the protective pad (6) is provided with a bell mouth, and the protective pad (6) adopts a flexible structure.

5. A novel gas chromatography column holder according to claim 1, characterized in that: A wristband (8) is fixedly mounted on the top surface of the top cover (7), and the inner diameter of the wristband (8) is greater than 3 cm.

6. A novel gas chromatography column holder according to claim 1, characterized in that: The outer wall of the movable seat (4) abuts against the inner wall of the movable groove (2), and the movable groove (2) is distributed in a cross shape.

7. A novel gas chromatography column holder according to claim 1, characterized in that: A support leg (17) is fixedly installed at a corner of the bottom surface of the frame box (1), and the height of the support leg (17) is greater than the outer diameter of the hand wheel (14).

8. A novel gas chromatography column holder according to claim 1, characterized in that: The transmission shaft (20) is rotatably connected to the bottom surface of the frame box (1) via a limit bearing, and the transmission shaft (20), the worm (15) and the frame box (1) are coaxially arranged.

Images