High performance liquid chromatograph convenient to use

Abstract

The utility model relates to the technical field of high performance liquid chromatographs, in particular to a high performance liquid chromatograph convenient to use, which comprises a detector and an auxiliary device, a separation system is arranged above the detector, a sample introduction system is arranged above the separation system, a power system is arranged above the sample introduction system, a placing box is arranged above the power system, and the placing box is connected with the detector. The auxiliary device is arranged on the surface of the placing box, the auxiliary device comprises three concave blocks and a placing block, and the three concave blocks are respectively and fixedly connected with the surface of the placing box. And the unstable transmission of the mobile phase caused by the shaking or excessive bending of the guide pipe is reduced, the accuracy and repeatability of chromatographic analysis are improved, and the situation that the guide pipes need to be manually smoothened after being wound is reduced, so that the manual burden is relieved, and the overall practicability of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high performance liquid chromatographs, in particular to a convenient-to-use high performance liquid chromatograph. Background Art

[0002] A high performance liquid chromatograph is an analytical separation instrument widely used in the fields of chemistry, biology, medicine, etc. It is based on the difference in the distribution coefficients of the components in a mixture between the stationary phase and the mobile phase, so that the components are separated in the chromatographic column. The sample solution is injected into the mobile phase through an injector and then passes through the chromatographic column with the mobile phase. Different components have different interactions with the stationary phase in the column, so they move at different speeds and are finally separated. The separated components enter the detector to generate corresponding signals, thus obtaining a chromatogram.

[0003] Prior art such as the utility model with the publication number CN218481472U. The utility model relates to a circulating high performance liquid chromatograph, including a power system, a sampling system, a separation system and a detection system. Two support columns are fixedly connected to the front of the power system. One end of each of the two support columns is fixedly connected to a support plate. An operation screen is rotatably connected between the opposite sides of the two support plates. A rotating disk is rotatably connected to one side of one of the support plates. By pinching a connecting plate and an assisting plate, a limiting strip is driven to squeeze a limiting spring and slide into an installation groove to release the limitation on the rotating disk. The operation screen is rotated to an angle that is comfortable and clear for the line of sight to view. The operation screen drives the rotating disk to rotate different position limiting grooves to a position opposite to the limiting strip. Then, the connecting plate is released, and the limiting spring will push the limiting strip to snap into the corresponding limiting groove to limit the rotating disk. Thus, it is convenient to flexibly adjust the angle of the operation screen according to the line of sight level of the operator's height, which is convenient for the operator to operate, helps to improve the operation comfort, and solves the problem that since the display screen is fixedly connected to the outer surface of one of the operating systems in the high performance liquid chromatograph, for operators of different heights, the line of sight level observed by the eyes and the horizontal height of the display screen are different. In order to facilitate taller operators to observe the display screen, the operator needs to squat or bend down to operate, and the comfort during the operation is poor.

[0004] In daily work, it is found that when using the existing high performance liquid chromatograph, multiple container bottles are placed above it, and conduits are inserted into the container bottles for liquid infusion. However, when multiple conduits are placed above, it is easy for the conduits to become entangled and knotted, resulting in unstable liquid infusion. Manual untangling of the knotted conduits is required, which makes the operation troublesome and the overall use inconvenient. Furthermore, when using the existing high performance liquid chromatograph, multiple conduits above are prone to knotting and need to be manually untangled, resulting in inconvenient use. Summary of the Utility Model

[0005] The purpose of the present utility model is to solve the disadvantages in the prior art that multiple upper conduits are prone to knotting and need to be manually straightened, resulting in inconvenient use, and to propose a high-performance liquid chromatograph that is convenient to use.

[0006] To achieve the above object, the present utility model adopts the following technical scheme: A high-performance liquid chromatograph that is convenient to use, including a detector and an auxiliary device. Above the detector is provided a separation system, above the separation system is provided an injection system, above the injection system is provided a power system, above the power system is provided a placement box, and the auxiliary device is arranged on the surface of the placement box. The auxiliary device includes a concave block and a placement block. The number of the concave blocks is three, and the three concave blocks are respectively fixedly connected to the surface of the placement box. The placement block is arranged on one side of the placement box, and the placement block is inserted into the inner wall of the concave block. Two fixing rods are fixedly connected to the surface of the placement block, two cross bars are fixedly connected to the surface of the two fixing rods, and a plurality of placement members are fixedly connected to the surface of the cross bar. Two pressing rods are slidably connected to the surface of the fixing rod, and a connecting block is fixedly connected to the surface of the two pressing rods. Through the above components, when restricting the conduit, the conduit can be evenly placed in the placement members on the surface of the cross bar, and then the pressing rod is pressed on the placement member to achieve the restraint of the conduit, reducing the situation of the conduit being disorderly wound and knotted and the trouble of manual straightening. At the same time, the placement block can be inserted into different concave blocks, and the restraint position can be adjusted according to the working requirements.

[0007] Preferably, a threaded groove is formed on the surface of the fixing rod, and a nut is threadedly connected to the surface of the threaded groove. Through the above components, by rotating the nut at the threaded groove on the surface of the fixing rod, the nut can press down the pressing rod, so that the pressing rod can stably cooperate with the placement member to restrain the conduit.

[0008] Preferably, a spring is sleeved on the surface of the fixing rod, and two ends of the spring are respectively fixedly connected to the surfaces of the pressing rod and the cross bar. Through the above components, when the nut loses the downward pressure on the pressing rod, the spring can control the pressing rod to reset.

[0009] Preferably, a positioning column is slidably connected to the inner wall of the concave block, and the positioning column is inserted into the inner wall of the placement block. Through the above components, after the placement block is inserted into the concave block, the positioning column can be inserted into the inner wall of the placement block to play a role in limiting the placement block.

[0010] Preferably, a moving device is arranged on the surface of the detector. The moving device includes fixing blocks. The number of the fixing blocks is two, and the two fixing blocks are respectively fixedly connected to the two side surfaces of the detector. A rolling ball is rotatably connected to the inner wall of the fixing block. Through the above components, through the cooperation of the fixing block and the rolling ball, the overall movement of the device can be realized, improving the overall ease of use.

[0011] Preferably, a limiting block is slidably connected to the inner wall of the fixing block, and a screw rod is rotatably connected to the inner wall of the fixing block. The screw rod is threadedly connected to the inner wall of the limiting block. Through the above components, the screw rod can be rotated, and the screw rod can drive the limiting block to move in the fixing block, so that the limiting block contacts the placement surface, improving the stability effect.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0013] 1. In the present utility model, by setting the auxiliary device, it is possible to realize the restraint of the conduit above the high-performance liquid chromatograph, ensure that the conduit is in a stable state, reduce the instability of the mobile phase transmission caused by the shaking or excessive bending of the conduit, improve the accuracy and repeatability of chromatographic analysis, reduce the need for manual smoothing after the conduits are entangled with each other, thereby reducing the manual burden and improving the overall practicality of the equipment.

[0014] 2. In the present utility model, by setting the moving device, it is convenient to move the high-performance liquid chromatograph on the desktop or workbench, reducing the situation that handling is troublesome and laborious, and improving the overall ease of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of a conveniently used high-performance liquid chromatograph proposed by the present utility model;

[0016] Figure 2 is a side-view structural schematic diagram of a conveniently used high-performance liquid chromatograph proposed by the present utility model;

[0017] Figure 3 is a partial structural schematic diagram of the auxiliary device of a conveniently used high-performance liquid chromatograph proposed by the present utility model;

[0018] Figure 4 is a conveniently used high-performance liquid chromatograph proposed by the present utility model Figure 3 structural schematic diagram of part A therein;

[0019] Figure 5 is a structural schematic diagram of the moving device of a conveniently used high-performance liquid chromatograph proposed by the present utility model.

[0020] Legend:

[0021] 1. Detector; 2. Separation system; 3. Sampling system; 4. Power system; 5. Placing box; 6. Auxiliary device; 61. Concave block; 62. Positioning column; 63. Fixed rod; 64. Placing block; 65. Cross bar; 66. Placing member; 67. Pressing rod; 68. Nut; 69. Threaded groove; 610. Connecting block; 611. Spring; 7. Moving device; 71. Fixed block; 72. Ball; 73. Screw; 74. Limiting block. Detailed implementation manner

[0022] Please refer to Figures 1-5 , the present utility model provides a technical solution: a high performance liquid chromatograph convenient to use, including a detector 1 and an auxiliary device 6. A separation system 2 is arranged above the detector 1, an injection system 3 is arranged above the separation system 2, a power system 4 is arranged above the injection system 3, a placing box 5 is arranged above the power system 4, and the auxiliary device 6 is arranged on the surface of the placing box 5.

[0023] Next, specifically describe the specific settings and functions of its auxiliary device 6 and moving device 7.

[0024] Specifically, the auxiliary device 6 includes a concave block 61 and a placing block 64. The number of concave blocks 61 is three, and the three concave blocks 61 are respectively fixedly connected to the surface of the placing box 5. The placing block 64 is arranged on one side of the placing box 5, and the placing block 64 is inserted into the inner wall of the concave block 61. Two fixed rods 63 are fixedly connected to the surface of the placing block 64, two cross bars 65 are fixedly connected to the surface of the two fixed rods 63, a plurality of placing members 66 are fixedly connected to the surface of the cross bar 65, and two pressing rods 67 are slidably connected to the surface of the fixed rod 63. Two connecting blocks 610 are fixedly connected to the surface of the two pressing rods 67.

[0025] In this embodiment: When restricting the catheter, the catheter can be evenly placed in the placing members 66 on the surface of the cross bar 65, and then the pressing rod 67 is pressed on the placing member 66 to realize the binding of the catheter, reducing the situation of messy winding and knotting of the catheter and the trouble of manual smoothing. At the same time, the placing block 64 can be inserted into different concave blocks 61, and the binding position can be adjusted according to the working requirements.

[0026] Specifically, a threaded groove 69 is formed on the surface of the fixed rod 63, and a nut 68 is threadedly connected to the surface of the threaded groove 69.

[0027] In this embodiment: Rotate the nut 68 at the threaded groove 69 on the surface of the fixed rod 63, and the nut 68 can press down the pressing rod 67, so that the pressing rod 67 can stably cooperate with the placing member 66 to bind the catheter.

[0028] Specifically, a spring 611 is sleeved on the surface of the fixed rod 63. The two ends of the spring 611 are respectively fixedly connected to the surfaces of the pressure rod 67 and the cross rod 65. When the nut 68 loses the downward pressure on the pressure rod 67, the spring 611 can control the reset of the pressure rod 67.

[0029] Specifically, a positioning column 62 is slidably connected to the inner wall of the concave block 61, and the positioning column 62 is inserted into the inner wall of the placing block 64.

[0030] In this embodiment: After the placing block 64 is inserted into the concave block 61, the positioning column 62 can be inserted into the inner wall of the placing block 64 to play a role in limiting the placing block 64.

[0031] Specifically, a moving device 7 is arranged on the surface of the detector 1. The moving device 7 includes fixing blocks 71. The number of the fixing blocks 71 is two, and the two fixing blocks 71 are respectively fixedly connected to the two side surfaces of the detector 1. A rolling ball 72 is rotatably connected to the inner wall of the fixing block 71. Through the cooperation of the fixing block 71 and the rolling ball 72, the overall movement of the device can be realized, and the overall usability can be improved.

[0032] Specifically, a limiting block 74 is slidably connected to the inner wall of the fixing block 71, and a screw rod 73 is rotatably connected to the inner wall of the fixing block 71. The screw rod 73 is threadedly connected to the inner wall of the limiting block 74.

[0033] In this embodiment: The screw rod 73 can be rotated, and the screw rod 73 can drive the limiting block 74 to move in the fixing block 71, so that the limiting block 74 contacts the placing surface, and the stability effect can be improved.

[0034] Working principle: When in use, place the solvent bottle on the placing box 5, insert a conduit into the solvent bottle, and then the conduit can be evenly placed on the placing member 66 on the surface of the cross rod 65 in sequence. Then rotate the nut 68, and the nut 68 moves on the thread groove 69 on the surface of the fixed rod 63 and presses down the pressure rod 67. The pressure rod 67 drives another pressure rod 67 to move through the connecting block 610, and the spring 611 is stressed. When the pressure rod 67 moves to a certain position, the pressure rod 67 can press on the placing member 66, thereby binding the conduit. At the same time, the positions of the placing block 64 and the placing member 66 can be changed according to the placement of the conduit. The placing member 66 can be inserted into the concave block 61 in the required direction, and then the positioning column 62 in the concave block 61 is inserted into the inner wall of the placing block 64, and the adjustment can be completed. When it is necessary to move the whole on the desktop or tabletop, just rotate the screw rod 73, the screw rod 73 drives the limiting block 74 to move, so that the limiting block 74 loses contact with the desktop and tabletop, and then the whole can be moved by the rolling of the rolling ball 72 to complete the use.

Claims

1. An easy-to-use high-performance liquid chromatograph, comprising a detector (1) and an auxiliary device (6), characterized in that: Above the detector (1), a separation system (2) is provided. Above the separation system (2), a sampling system (3) is provided. Above the sampling system (3), a power system (4) is provided. Above the power system (4), a placement box (5) is provided. The auxiliary device (6) is arranged on the surface of the placement box (5). The auxiliary device (6) includes a concave block (61) and a placement block (64). The number of the concave blocks (61) is three. The three concave blocks (61) are respectively fixedly connected to the surface of the placement box (5). The placement block (64) is arranged on one side of the placement box (5). The placement block (64) is inserted into the inner wall of the concave block (61). Two fixing rods (63) are fixedly connected to the surface of the placement block (64). Two cross bars (65) are fixedly connected to the surface of the two fixing rods (63). A plurality of placement members (66) are fixedly connected to the surface of the cross bar (65). Two pressing rods (67) are slidably connected to the surface of the fixing rod (63). A connecting block (610) is fixedly connected to the surface of the two pressing rods (67).

2. An efficient liquid chromatograph that is convenient to use according to claim 1, characterized in that: A threaded groove (69) is formed on the surface of the fixing rod (63), and a nut (68) is threadedly connected to the surface of the threaded groove (69).

3. An efficient liquid chromatograph that is convenient to use according to claim 1, characterized in that: A spring (611) is sleeved on the surface of the fixing rod (63), and the two ends of the spring (611) are respectively fixedly connected to the surfaces of the pressing rod (67) and the cross bar (65).

4. An efficient liquid chromatograph that is convenient to use according to claim 1, characterized in that: A positioning column (62) is slidably connected to the inner wall of the concave block (61), and the positioning column (62) is inserted into the inner wall of the placement block (64).

5. An efficient liquid chromatograph that is convenient to use according to claim 1, characterized in that: A moving device (7) is arranged on the surface of the detector (1). The moving device (7) includes fixing blocks (71). The number of the fixing blocks (71) is two. The two fixing blocks (71) are respectively fixedly connected to the two side surfaces of the detector (1). A rolling ball (72) is rotatably connected to the inner wall of the fixing block (71).

6. An efficiently usable high performance liquid chromatograph according to claim 5, wherein: A limiting block (74) is slidably connected to the inner wall of the fixing block (71). A screw rod (73) is rotatably connected to the inner wall of the fixing block (71), and the screw rod (73) is threadedly connected to the inner wall of the limiting block (74).

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