Experimental titration device for preventive medicine

Abstract

The utility model discloses an experimental titration device for preventive medicine, a rotating ball is embedded into the inner side of a liquid collecting cylinder, one end of the rotating ball is fixedly connected with a rotating rod, and the rotating rod is limited and connected to the edge end of the liquid collecting cylinder through a limiting nut which is in threaded connection with the outer side of the rotating rod; by utilizing the liquid collecting cylinder, the intercepting cover, the rotating ball, the rotating rod, the limiting nut, the through groove, the adjusting groove and the bottom dripping pipe, a titrating solution can be firstly added into the liquid collecting cylinder when the titrating solution is added, so that the phenomenon of scattering is avoided, the convenience of adding the titrating solution is improved, and the titrating solution adding efficiency is improved. Meanwhile, the position angle of an adjusting groove can be conveniently adjusted by rotating a rotating ball in a liquid collecting cylinder, so that the flow speed and the flow rate of a titrating solution can be conveniently regulated and controlled when the titrating solution enters the burette, the titrating solution can be conveniently and flexibly added according to requirements when being added, the subsequent titration requirement is conveniently met, and the titration efficiency is improved. The convenience of the titration experiment is improved.

Description

Technical Field

[0001] This utility model relates to the field of preventive medicine technology, specifically to an experimental titration device for preventive medicine. Background Technology

[0002] Preventive medicine is a medical science that studies health-influencing factors and their mechanisms of action using macroscopic and microscopic techniques, focusing on populations as research subjects. It elucidates the relationship between external environmental factors and population health, and formulates public health strategies and measures to prevent disease, promote health, extend lifespan, and improve quality of life. In medical analysis, titration experiments are often required. Titration experiments are commonly used in medical or chemical experiments to quantitatively analyze the solute content in solutions. By using indicators to quantitatively react with reactants and solutes in solutions, the content of a certain reactant is determined. Titration experiments require the use of burettes, containers, and other auxiliary devices to complete the titration experiment.

[0003] In current titration experiments, the small diameter of the burette opening makes it easy for the titrant to spill when added. Furthermore, the amount and flow rate of the titrant cannot be controlled, leading to overflow and reducing the convenience of the titration experiment. Utility Model Content

[0004] This invention provides a preventive medicine experimental titration device, which can effectively solve the problems mentioned in the background art. In current titration experiments, due to the small diameter of the burette opening, the titrant is prone to spillage when added to the burette. At the same time, the amount and flow rate of the titrant cannot be controlled, which leads to overflow after the titrant enters the burette, reducing the convenience of titration experiments.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an experimental titration device for preventive medicine, comprising a support frame, with guide vertical plates symmetrically installed at the middle of both sides of the support frame, a drive screw rotatably connected to the inner side of one guide vertical plate, and a guide rod fixedly installed on the inner side of the other guide vertical plate, a turntable fixedly installed at the top of the drive screw, and an adjustment bracket connected to the outer side of both the drive screw and the guide rod, with a clamping hole opened in the middle of the inner side of the adjustment bracket, and a burette connected to the inner side of the clamping hole for limiting.

[0006] The support frame has a fitting groove at the top center, a liquid collecting cylinder is embedded in the inner side of the fitting groove, a fixed seat is provided at the edge of the liquid collecting cylinder at equal angles, an interception cover is provided at the top edge of the liquid collecting cylinder, a rotating ball is embedded in the inner side of the liquid collecting cylinder, a rotating rod is fixedly connected to one end of the rotating ball, and the rotating rod is limited and connected to the edge of the liquid collecting cylinder by a limiting nut threaded on its outer side.

[0007] The liquid collecting cylinder has a through groove in the middle of its inner side, the rotating ball has an adjustment groove inside, and the bottom of the liquid collecting cylinder is connected to a bottom drip tube corresponding to the burette.

[0008] Preferably, a nut seat is provided inside the adjusting bracket corresponding to the drive screw, a guide hole is provided on the inner side of the adjusting bracket corresponding to the guide rod, and the two ends of the adjusting bracket are limited and connected to the inner side of the guide vertical plate.

[0009] Preferably, the rotating rod drives the rotating ball to rotate, and a ball groove is provided on the inner side of the liquid collecting cylinder corresponding to the rotating ball, and a sealing plate is provided on the inner wall of the ball groove.

[0010] Preferably, the centers of the burette, the collecting cylinder, and the bottom drip tube are located on the same straight line in the vertical direction.

[0011] Preferably, mounting blocks are symmetrically connected to both sides of the top of the adjusting bracket. A guide groove is provided on the inner side of the mounting block. A movable column is slidably connected to the inner side of the guide groove. A clamping spring is sleeved on the outer side of the movable column. A limit plate is fixedly connected to one end of the movable column, and a limit arc block is fixedly connected to the other end.

[0012] Preferably, the movable column is slidably connected to the inside of the guide groove by a limiting block at its edge, and the end of the clamping spring is fixedly connected to the limiting plate.

[0013] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use.

[0014] 1. The position of the adjusting bracket inside the support frame can be easily adjusted via the guide plate, drive screw, guide rod, and turntable, thereby adjusting the height of the adjusting bracket. This facilitates the adjustment of the actual titration height of the burette, making experiments easier. Simultaneously, the use of the collecting cylinder, intercepting cover, rotating ball, rotating rod, limiting nut, through groove, adjusting groove, and bottom drip tube ensures that the titrant is added to the collecting cylinder first, preventing spillage and improving the convenience of titrant addition. Furthermore, rotating the rotating ball inside the collecting cylinder allows for easy adjustment of the position and angle of the adjusting groove, enabling convenient control of the flow rate and volume of the titrant as it enters the burette. This allows for flexible addition of titrant as needed, facilitating subsequent titration requirements and improving the convenience of titration experiments.

[0015] 2. By setting an installation block, guide groove, movable column, clamping spring, limiting plate, and limiting arc block on the top of the adjusting bracket, when the burette is inserted into the clamping hole, the elastic support force of the clamping spring allows the limiting arc block at the end of the movable column to fit tightly against the edge of the burette. Combined with the clamping action of the two limiting arc blocks, the burette can be limited and connected in the clamping hole, improving the stability of the burette after installation and preventing it from loosening. This limiting method also facilitates the quick disassembly of the burette, making it easier to replace and clean it later. Furthermore, the elastic support force of the two identical clamping springs ensures that the burette is positioned exactly in the center of the clamping hole after being limited, thus facilitating accurate dripping experiments.

[0016] 3. The fitting groove on the top of the support frame facilitates the limiting and fitting connection of the liquid collection cylinder. Combined with the fixing seat on the side of the liquid collection cylinder, it is convenient to further fix the liquid collection cylinder on the top inner side of the support frame, ensuring its stability during infusion. At the same time, it also makes the liquid collection cylinder easy to disassemble and clean. Attached Figure Description

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0018] In the attached diagram:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the installation structure of the turntable of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the adjustment bracket of this utility model;

[0022] Figure 4 This is a schematic diagram of the liquid collecting cylinder of this utility model;

[0023] Figure 5 This is a schematic diagram of the connection structure of the rotating ball of this utility model;

[0024] Figure 6 This is a schematic diagram of the installation structure of the limiting arc block of this utility model;

[0025] The following are the labels in the diagram: 1. Support frame; 2. Guide vertical plate; 3. Drive screw; 4. Guide rod; 5. Turntable; 6. Adjusting bracket; 7. Burette; 8. Fitting groove; 9. Collection cylinder; 10. Fixed seat; 11. Interception cover; 12. Rotating ball; 13. Rotating rod; 14. Limiting nut; 15. Through groove; 16. Adjusting groove; 17. Bottom drip tube; 18. Mounting block; 19. Guide groove; 20. Movable column; 21. Clamping spring; 22. Limiting plate; 23. Limiting arc block; 24. Clamping hole. Detailed Implementation

[0026] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0027] Example: Figure 1-6 As shown, this utility model provides a technical solution: an experimental titration device for preventive medicine, including a support frame 1. Guide vertical plates 2 are symmetrically installed at the middle of both sides of the support frame 1. A drive screw 3 is rotatably connected to the inner side of one guide vertical plate 2, and a guide rod 4 is fixedly installed on the inner side of the other guide vertical plate 2. A turntable 5 is fixedly installed at the top of the drive screw 3. Adjustment brackets 6 are connected to the outer sides of both the drive screw 3 and the guide rod 4. A clamping hole 24 is opened in the middle of the inner side of the adjustment bracket 6. A burette 7 is limited and connected to the inner side of the clamping hole 24. A nut seat is provided inside the adjustment bracket 6 corresponding to the drive screw 3. A guide hole is opened inside the adjustment bracket 6 corresponding to the guide rod 4. The two ends of the adjustment bracket 6 are limited and connected to the inner side of the guide vertical plate 2, facilitating the adjustment of the position of the adjustment bracket 6 inside the support frame 1, thereby adjusting the height of the adjustment bracket 6 and thus facilitating the adjustment of the actual experimental titration height of the burette 7.

[0028] The top center of the support frame 1 is provided with a fitting groove 8. A liquid collecting cylinder 9 is embedded and connected to the inner side of the fitting groove 8. A fixed seat 10 is provided at the edge of the liquid collecting cylinder 9 at equal angles. An intercepting cover 11 is provided at the top edge of the liquid collecting cylinder 9. A rotating ball 12 is embedded and connected to the inner side of the liquid collecting cylinder 9. A rotating rod 13 is fixedly connected to one end of the rotating ball 12. The rotating rod 13 is limited and connected to the edge of the liquid collecting cylinder 9 by a limiting nut 14 threaded to its outer side.

[0029] A through groove 15 is provided in the middle of the inner side of the liquid collecting cylinder 9, and an adjustment groove 16 is provided inside the rotating ball 12. The rotating rod 13 drives the rotating ball 12 to rotate. A ball groove is provided on the inner side of the liquid collecting cylinder 9 corresponding to the rotating ball 12, and a sealing plate is provided on the inner wall of the ball groove. The position and angle of the adjustment groove 16 can be easily adjusted by rotating the rotating ball 12, so that the flow rate and flow rate of the titrant can be easily controlled when it enters the burette 7, and the sealing of the contact between them can be ensured. The bottom end of the liquid collecting cylinder 9 is connected to the bottom drip tube 17 corresponding to the burette 7. The centers of the burette 7, the liquid collecting cylinder 9 and the bottom drip tube 17 are located on the same straight line in the vertical direction, which facilitates more accurate titration experiments.

[0030] The top of the adjusting bracket 6 is symmetrically connected to two mounting blocks 18. The inner side of the mounting block 18 is provided with a guide groove 19. The inner side of the guide groove 19 is slidably connected to a movable column 20. A clamping spring 21 is sleeved on the outer side of the movable column 20. One end of the movable column 20 is fixedly connected to a limiting plate 22, and the other end is fixedly connected to a limiting arc block 23. The movable column 20 is slidably connected to the inner side of the guide groove 19 by the limiting block at its edge. The end of the clamping spring 21 is fixedly connected to the limiting plate 22, so that the movable column 20 can slide stably and prevent rotation during the sliding process. At the same time, the elastic support force of the clamping spring 21 makes it easy for the limiting arc block 23 at the end of the movable column 20 to fit tightly against the edge of the burette 7.

[0031] The working principle and usage process of this utility model: In actual use, the experimental titration device for preventive medicine first needs to pass the burette 7 through the fitting groove 8 so that the burette 7 is inserted into the clamping hole 24 inside the adjusting bracket 6. During the specific limiting process, through the mounting block 18, guide groove 19, movable column 20, clamping spring 21, limiting plate 22 and limiting arc block 23, when the burette 7 is inserted into the clamping hole 24, the elastic support force of the clamping spring 21 makes the limiting arc block 23 at the end of the movable column 20 fit tightly against the edge of the burette 7. Combined with the clamping effect of the two limiting arc blocks 23, the burette 7 can be limited and connected in the clamping hole 24, which improves the stability of the burette 7 after installation and prevents it from loosening.

[0032] Furthermore, this limiting method facilitates the quick disassembly of the burette 7, making it easy to replace and clean it later. The elastic support force of the two identical clamping springs 21 ensures that the burette 7 is positioned precisely at the center of the clamping hole 24 after being limited, thus facilitating accurate dripping experiments. Before the dripping experiment, the position of the adjusting bracket 6 inside the support frame 1 can be easily adjusted via the guide plate 2, drive screw 3, guide rod 4, and turntable 5, thereby adjusting the height of the adjusting bracket 6. This allows for easy adjustment of the actual experimental dripping height of the burette 7, facilitating better experimental performance.

[0033] After the position of the burette 7 is adjusted, the fitting groove 8 opened at the top of the support frame 1 makes it easy to limit and fit the collection cylinder 9. Combined with the fixing seat 10 set on the side of the collection cylinder 9, it is easy to further fix the collection cylinder 9 on the top inner side of the support frame 1 to ensure its stability during infusion. At the same time, it also makes the collection cylinder 9 easy to disassemble and clean.

[0034] After the liquid collecting cylinder 9 is installed on the top inner side of the support frame 1, the liquid collecting cylinder 9, intercepting cover 11, rotating ball 12, rotating rod 13, limiting nut 14, through groove 15, adjusting groove 16 and bottom drip tube 17 can ensure that the titrant is added into the liquid collecting cylinder 9 first when it is added, avoiding spillage and improving the convenience of adding the titrant. At the same time, by rotating the rotating ball 12 inside the liquid collecting cylinder 9, the position and angle of the adjusting groove 16 can be easily adjusted, so that the flow rate and flow rate of the titrant can be easily controlled when it enters the burette 7. This makes it easy to add the titrant flexibly according to the needs, thereby meeting the requirements of subsequent titration and improving the convenience of titration experiments.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A laboratory titration apparatus for preventive medicine, comprising a support frame (1), characterized in that: The support frame (1) has guide vertical plates (2) symmetrically installed at the middle of both sides. A drive screw (3) is rotatably connected to the inner side of one guide vertical plate (2), and a guide rod (4) is fixedly installed on the inner side of the other guide vertical plate (2). A turntable (5) is fixedly installed at the top of the drive screw (3). An adjustment bracket (6) is connected to the outer side of both the drive screw (3) and the guide rod (4). A clamping hole (24) is opened in the middle of the inner side of the adjustment bracket (6), and a burette (7) is limited and connected to the inner side of the clamping hole (24). The support frame (1) has a fitting groove (8) at the top center. A liquid collecting cylinder (9) is embedded in the inner side of the fitting groove (8). A fixed seat (10) is provided at the edge of the liquid collecting cylinder (9) at equal angles. An intercepting cover (11) is provided at the top edge of the liquid collecting cylinder (9). A rotating ball (12) is embedded in the inner side of the liquid collecting cylinder (9). A rotating rod (13) is fixedly connected to one end of the rotating ball (12). The rotating rod (13) is limited and connected to the edge of the liquid collecting cylinder (9) by a limiting nut (14) threaded on its outer side. The liquid collecting cylinder (9) has a through groove (15) in the middle of its inner side, and the rotating ball (12) has an adjustment groove (16) inside. The bottom end of the liquid collecting cylinder (9) is connected to the burette (7) with a bottom drip tube (17).

2. The experimental titration apparatus for preventive medicine according to claim 1, characterized in that: The adjusting bracket (6) has a nut seat inside corresponding to the drive screw (3), and a guide hole is opened on the inner side of the adjusting bracket (6) corresponding to the guide rod (4). The two ends of the adjusting bracket (6) are limited and connected to the inner side of the guide vertical plate (2).

3. The experimental titration apparatus for preventive medicine according to claim 1, characterized in that: The rotating rod (13) drives the rotating ball (12) to rotate, and a ball groove is provided on the inner side of the liquid collecting cylinder (9) corresponding to the rotating ball (12), and a sealing plate is provided on the inner wall of the ball groove.

4. The experimental titration apparatus for preventive medicine according to claim 1, characterized in that: The centers of the burette (7), the collecting cylinder (9), and the bottom drip tube (17) are located on the same straight line in the vertical direction.

5. The experimental titration apparatus for preventive medicine according to claim 1, characterized in that: The top of the adjusting bracket (6) is symmetrically connected to the two sides of the mounting block (18). The inner side of the mounting block (18) is provided with a guide groove (19). The inner side of the guide groove (19) is slidably connected to a movable column (20). The outer side of the movable column (20) is sleeved with a clamping spring (21). One end of the movable column (20) is fixedly connected to a limit plate (22), and the other end is fixedly connected to a limit arc block (23).

6. The experimental titration apparatus for preventive medicine according to claim 5, characterized in that: The movable column (20) is slidably connected to the inside of the guide groove (19) by a limiting block at its edge, and the end of the clamping spring (21) is fixedly connected to the limiting plate (22).

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