Bottom supporting platform of high performance liquid chromatograph

Abstract

The utility model relates to the technical field of liquid chromatographs, in particular to a high performance liquid chromatograph bottom supporting platform which comprises a bottom plate, a fixing box arranged on the upper surface of the bottom plate, a liquid chromatograph arranged in the fixing box, fixing plates arranged on the left side and the right side of the liquid chromatograph respectively, and gradienters arranged on the inner side faces and the rear side faces of the fixing plates respectively. The lower surfaces of the fixing plates make contact with the upper surface of the bottom plate, the upper surfaces of the fixing plates make contact with the upper bottom face in the fixing box, the outer side faces of the two fixing plates are each provided with two motors, the motors are in central symmetry relative to the fixing plates, limiting holes are formed in the four corners of the bottom plate respectively, fixing columns are arranged in the limiting holes, and the upper ends of the fixing columns are inserted into the limiting holes. The outer surface of the fixing column is slidably sleeved with a height adjusting device. According to the utility model, the knob rotates to drive the moving part to move upwards or downwards, and the height of the bottom plate is finely adjusted, so that the liquid chromatograph above is kept balanced and stable in the operation and installation processes.

Description

Technical Field

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

[0002] Liquid chromatograph is an instrument for separating and analyzing compounds, and is widely used in chemistry, biochemistry, pharmaceuticals, environmental analysis, etc. Liquid chromatography is based on the distribution behavior of samples between the mobile liquid phase and the stationary phase, and the separation and detection of compounds are achieved through this distribution.

[0003] At present, after the liquid chromatograph is installed on the supporting platform, the height change of the supporting platform will affect the overall stability of the liquid chromatograph, and the supporting platform needs to be fine-tuned during the installation process to ensure the balance and stability of the platform. At the same time, during use, an unstable supporting platform may cause vibration during the operation of the instrument, affecting the accuracy of the analysis. Utility Model Content

[0004] The utility model aims to solve the shortcomings existing in the prior art and proposes a bottom support platform for a high performance liquid chromatograph, comprising a bottom plate, a fixed box is arranged on the upper surface of the bottom plate, a liquid chromatograph is arranged in the fixed box, fixed plates are arranged on the left and right sides of the liquid chromatograph respectively, a level is arranged on the inner side and the rear side of the fixed plate respectively, the lower surface of the fixed plate contacts the upper surface of the bottom plate, and the upper surface contacts the upper bottom surface of the fixed box, two motors are arranged on the outer sides of the two fixed plates, the motors are symmetrical relative to the center of the fixed plates, limiting holes are arranged at the four corners of the bottom plate respectively, fixing columns are arranged in the limiting holes, the upper ends of the fixing columns are inserted in the limiting holes, a supporting column is arranged at the lower ends of the fixing columns, and a sliding sleeve height adjustment device is arranged on the outer surface of the fixing columns.

[0005] Furthermore, the height adjustment device includes a moving part, which is a T-shaped structure. A slide groove is provided in the moving part, and a threaded rod is provided in the slide groove. The threaded rod is transversely arranged at the center position of the slide groove. The end of the threaded rod passes through the bottom surface of the moving part and is arranged on the outside and connected to the knob; the threaded rod is threadedly connected to a slider, and a rotating shaft is provided on the side of the slider. The slider is connected to one end of a connecting rod through the rotating shaft, and the other end of the connecting rod is connected to the support column through the rotating shaft.

[0006] Furthermore, when the moving member moves to the lowest position, there is still a gap between the lower surface of the moving member and the upper surface of the supporting column, and the upper surface of the moving member contacts the lower surface of the bottom plate.

[0007] Furthermore, when the movable member moves to the highest position, the upper end of the fixed column is still in the limiting hole.

[0008] Furthermore, an anti-movement block is provided at the lower end of the support column, and elastic cushions are provided on the upper surface of the movable member and the inner side surface of the fixed plate.

[0009] The utility model has the following beneficial effects:

[0010] In the utility model, the threaded rod, the knob, the fixed column, the moving part, the connecting rod and other structures cooperate so that the rotation of the knob can drive the moving part to move upward or downward, and the height of the bottom plate can be fine-tuned, thereby ensuring that the liquid chromatograph above remains balanced and stable during operation and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of a bottom support platform of a high performance liquid chromatograph proposed by the utility model;

[0012] Figure 2 This is an internal front view of the liquid chromatograph and the fixed box proposed by the utility model;

[0013] Figure 3 This is a structural schematic diagram of the height adjustment device proposed by the utility model;

[0014] Figure 4 This is a front view of the height adjustment device proposed by the utility model connected to the base plate.

[0015] Legend:

[0016] 1. Base plate; 11. Limiting hole; 2. Fixed box; 3. Liquid chromatograph; 4. Fixed plate; 5. Level; 6. Motor; 7. Fixed column; 8. Support column; 9. Height adjustment device; 91. Moving part; 92. Slide; 93. Threaded rod; 94. Knob; 95. Slider; 96. Connecting rod; 10. Anti-shift block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Reference Figure 1-4As shown, an embodiment of the utility model is provided: a bottom support platform of a high performance liquid chromatograph, comprising a bottom plate 1, the bottom plate 1 is used to support a liquid chromatograph 3 above, a fixed box 2 is arranged on the upper surface of the bottom plate 1, the fixed box 2 is used to limit the moving position of the liquid chromatograph 3, the liquid chromatograph 3 is arranged in the fixed box 2, the left and right sides of the liquid chromatograph 3 are respectively arranged with fixed plates 4, the inner side and the rear side of the fixed plate 4 are respectively arranged with a level 5, the level 5 is used to measure whether the bottom plate 1 is tilted, and the angle of the bottom plate 1 is observed through the bubbles in the level 5 to adjust the height of the four corners of the bottom plate 1, the lower surface of the fixed plate 4 is in contact with the upper surface of the bottom plate 1, and the upper surface is in contact with the upper bottom surface of the fixed box 2, and the fixed plate 4 can be used to adjust the liquid on both sides The liquid chromatograph 3 is limited to reduce the influence of vibration generated during operation on the detection results. Two motors 6 are arranged on the outer sides of the two fixed plates 4. The motors 6 are symmetrical with respect to the center of the fixed plates 4. The motors 6 are used to adjust the position of the fixed plates 4, thereby adjusting the position of the liquid chromatograph 3 to prevent it from being offset during the installation process, so that the height adjustment device 9 can adjust the height of the base plate 1, so that the liquid chromatograph 3 is in a balanced and stable state. Limiting holes 11 are respectively arranged at the four corners of the base plate 1, and fixing columns 7 are arranged in the limiting holes 11. The limiting holes 11 are used to fix the fixing columns 7. The upper ends of the fixing columns 7 are inserted into the limiting holes 11, and the lower ends of the fixing columns 7 are provided with support columns 8. The outer surface of the fixing columns 7 is slidably tied with the height adjustment device 9.

[0019] Furthermore, the height adjustment device 9 includes a moving part 91, which is a T-shaped structure. A slide groove 92 is provided in the moving part 91, and a threaded rod 93 is provided in the slide groove 92. The threaded rod 93 is horizontally arranged at the center position of the slide groove 92. The end of the threaded rod 93 passes through the bottom surface of the moving part 91 and is arranged on the outside and is connected to the knob 94; the threaded rod 93 is threadedly connected to the slider 95, and a rotating shaft is provided on the side of the slider 95. One end of the connecting rod 96 is connected to the slider 95 through the rotating shaft, and the other end is connected to the support column 8 through the rotating shaft. The knob 94 is rotated to rotate the threaded rod 93, and then the slider 95 slides in the slide groove 92, driving the connecting rod 96 to rotate to make the moving part 91 slide up and down on the fixed column 7, thereby adjusting the height of the base plate 1.

[0020] Furthermore, when the movable member 91 moves to the lowest point, there is still a distance between the lower surface of the movable member 91 and the upper surface of the support column 8, so as to prevent the lower surface of the movable member 91 from being too close to the upper surface of the support column 8, resulting in insufficient height adjustment range, affecting the balance of the base plate 1 and thus affecting the stability of the liquid chromatograph 3.

[0021] Furthermore, when the movable member 91 moves to the lowest point, the upper surface of the movable member 91 contacts the lower surface of the base plate 1, so that the movable member 91 can move up and down on the fixed column 7, instead of the movable member 91 upper surface contacts the lower surface of the base plate 1 only after moving upward for a certain distance, thereby causing invalid adjustment distance and increasing the difficulty of adjusting the horizontal state of the base plate 1; when the movable member 91 moves to the highest point, the upper end of the fixed column 7 is still in the limiting hole 11, preventing the fixed column 7 from disengaging from the limiting hole 11 during the upward movement of the movable member 91, which causes the base plate 1 to deviate and cannot be fixed, and the stability of the base plate 1 cannot be guaranteed, thereby affecting the detection result of the liquid chromatograph 3.

[0022] Furthermore, an anti-movement block 10 is provided at the lower end of the support column 8 to prevent the base plate 1 from driving the support column 8 to move as a whole when being touched, thereby preventing the base plate 1 from being repeatedly adjusted horizontally to ensure the stability of the liquid chromatograph 3. Elastic pads are provided on the upper surface of the movable part 91 and the inner side of the fixed plate 4. The elastic pads can reduce the vibration generated during the operation of the liquid chromatograph 3 and reduce the impact on the detection results.

[0023] Working principle: When in use, the operator first places the liquid chromatograph 3 in the fixed box 2, adjusts the position of the fixed plate 4 through the motor 6, so that the inner side of the fixed plate 4 is close to the two sides of the liquid chromatograph 3, observes the direction of the bubble offset in the spirit level 5 to adjust the height of the four corners of the bottom plate 1, turns the knob 94, and the knob 94 drives the threaded rod 93 to start rotating. The rotation of the threaded rod 93 causes the slider 95 to slide on the threaded rod 93. While sliding, the slider 95 changes the angle of the connecting rod 96. Since the length of the connecting rod 96 remains unchanged, the movable part 91 slides on the fixed column 7, thereby being able to adjust the height of the four corners of the bottom plate 1 until the bubble of the spirit level 5 is in the center and the knob 94 is stopped.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bottom support platform for a high performance liquid chromatograph, characterized in that: The invention comprises a bottom plate (1), a fixing box (2) is arranged on the upper surface of the bottom plate (1), a liquid chromatograph (3) is arranged in the fixing box (2), fixing plates (4) are arranged on the left and right sides of the liquid chromatograph (3), a level (5) is arranged on the inner side and the rear side of the fixing plate (4), the lower surface of the fixing plate (4) contacts the upper surface of the bottom plate (1), and the upper surface contacts the inner bottom surface of the fixing box (2), two motors (6) are arranged on the outer side surfaces of the two fixing plates (4), and the motors (6) are symmetrical with respect to the center of the fixing plates (4), limiting holes (11) are arranged at the four corners of the bottom plate (1), fixing columns (7) are arranged in the limiting holes (11), the upper ends of the fixing columns (7) are inserted in the limiting holes (11), the lower ends of the fixing columns (7) are arranged with support columns (8), and the outer surfaces of the fixing columns (7) are slidably connected with a height adjustment device (9).

2. The bottom support platform of a high performance liquid chromatograph according to claim 1, characterized in that: The height adjustment device (9) comprises a moving member (91), the moving member (91) is a T-shaped structure, a slide groove (92) is arranged in the moving member (91), a threaded rod (93) is arranged in the slide groove (92), the threaded rod (93) is arranged transversely at the center position of the slide groove (92), the end of the threaded rod (93) passes through the bottom surface of the moving member (91) and is arranged outside and connected to a knob (94); the threaded rod (93) is threadedly connected to a slider (95), a rotating shaft is arranged on the side of the slider (95), the slider (95) is connected to one end of a connecting rod (96) through the rotating shaft, and the other end of the connecting rod (96) is connected to the support column (8) through the rotating shaft.

3. The bottom support platform of a high performance liquid chromatograph according to claim 2, characterized in that: When the moving member (91) moves to the lowest position, there is still a gap between the lower surface of the moving member (91) and the upper surface of the support column (8), and the upper surface of the moving member (91) contacts the lower surface of the bottom plate (1).

4. The bottom support platform of a high performance liquid chromatograph according to claim 2, characterized in that: When the moving member (91) moves to the highest position, the upper end of the fixed column (7) is still in the limiting hole (11).

5. The bottom support platform of a high performance liquid chromatograph according to claim 2, characterized in that: An anti-movement block (10) is provided at the lower end of the support column (8), and elastic cushions are provided on the upper surface of the movable member (91) and the inner side surface of the fixed plate (4).

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