Novel potentiometric titrator

Abstract

According to the technical scheme, the novel potentiometric titrator is characterized in that the novel potentiometric titrator comprises a fixing disc, a plurality of first sliding grooves are formed in the top face of the fixing disc, second sliding grooves are formed in the two sides of the interior of each first sliding groove, and supporting blocks are arranged in the first sliding grooves; sliding blocks are fixedly installed on the two sides of the supporting block, the supporting block is clamped in the first sliding groove through the second sliding groove and the sliding blocks, a supporting hole is formed in the top face of the supporting block, and a contact sleeve is arranged in the supporting hole in a sleeved mode. On the other hand, by adjusting the position of the device, drip irrigation fixed in the contact sleeve can be moved out of the position of a beaker, the situation that redundant liquid medicine enters a sesame seed cake after titration is completed, and the specific titration effect is affected is avoided, on the other hand, the device can be stored in a first sliding groove by moving a supporting block, and the whole device can be conveniently stored.

Description

Technical Field

[0001] The utility model relates to the technical field of potentiometric titrators, in particular to a novel potentiometric titrator. Background Art

[0002] A potentiometric titrator uses potentiometric titration to determine the endpoint by measuring the potential change during titration. It is primarily used for chemical analysis of various components in universities, research institutions, petrochemicals, pharmaceuticals, drug testing, metallurgy, and other industries. Potentiometric titration determines the endpoint by measuring the potential change during titration. Compared to direct potentiometry, potentiometric titration does not require accurate electrode potential measurement, making the effects of temperature and liquid junction potential less significant. Its accuracy is superior to direct potentiometry. Conventional titrations rely on a color change in the indicator to indicate the endpoint. However, if the test solution is colored or turbid, indicating the endpoint can be difficult or even impossible. Potentiometric titrations use a sudden jump in the electrode potential to indicate the endpoint. Before and after the titration endpoint, the concentration of the analyte in the dripping solution often changes by orders of magnitude, causing a sudden potential jump. The content of the analyte is still calculated based on the amount of titrant consumed.

[0003] A highly sensitive potentiometric titrator with publication number CN217879059U has the following defects during use:

[0004] The utility model can drive the connecting rod, the titration stand and the electrode thereon to move up and down through the adjustment mechanism, so that the electrode is stably inserted into the measured solution in the titration bottle below for titration operation during the downward movement, and the electrode can be stably removed from the titration bottle after the titration is completed, thereby avoiding the need to manually adjust the height of the titration stand up and down. The titration efficiency is high and the manual adjustment can avoid the shaking and collision of the electrode and the titration bottle, which can avoid the shaking and collision affecting the sensitivity of the subsequent titration. However, in actual use, the staff may need to use multiple different solutions in a short period of time. Directly removing and reinstalling it will take extra time. If it is not removed, it may fall naturally due to its own gravity, affecting the actual titration effect. For this reason, we have proposed a new potentiometric titrator. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a new potentiometric titrator, which solves the problem that in actual use, workers need to use multiple different solutions in a short period of time. Directly removing and reinstalling the titrator will take extra time. If the titrator is not removed, it may fall naturally due to its own gravity, affecting the actual titration effect.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A new potentiometric titrator includes a fixed plate, a top surface of which is provided with a plurality of first sliding grooves, a second sliding groove being provided on both sides of the interior of the first sliding groove, a support block being provided inside the first sliding groove, sliding blocks being fixedly installed on both sides of the support block, the support block being clamped in the interior of the first sliding groove through the second sliding groove and the sliding block, a support hole being provided on the top surface of the support block, and a contact sleeve being provided inside the support hole.

[0008] Preferably, a first connecting block is fixedly installed on the outer wall of the fixed plate, a contact hole is provided on the top surface of the first connecting block, and a gap is provided on the inner wall surface of the contact hole. Two connecting plates are fixedly installed on one side of the first connecting block, and the contact parts of the two connecting plates are aligned with the gap on the inner wall surface of the contact hole. A threaded hole is provided on one side of the connecting plate, and a fastening bolt is provided on one side of the first connecting block, and the fastening bolt is connected to the connecting plate through the threaded hole provided on one side of the connecting plate.

[0009] Preferably, the bottom surface of the fixed disk is provided with a potentiometric titrator body, a second connecting block is fixedly installed on one side of the potentiometric titrator body, a sliding rod is fixedly installed on the top surface of the second connecting block, and the fixed disk is connected to the potentiometric titrator body through the contact hole and the sliding rod.

[0010] Preferably, a rotating groove is provided on the top surface of the potentiometric titrator body, a rotating rod is fixedly installed on the inner bottom surface of the rotating groove, a limit plate is provided inside the rotating groove, a connecting hole is provided on the top surface of the limit plate, the limit plate is clamped to the inside of the rotating groove through the rotating rod and the connecting hole, and a plurality of limit holes are provided on the top surface of the limit plate.

[0011] Preferably, a through hole is opened on the top surface of the fixing plate, a fixing box is fixedly installed on the top surface of the fixing plate, and a driving motor is sleeved inside the fixing box.

[0012] Preferably, a stirring rod is fixedly mounted on the output end of the driving motor, and a threaded protrusion is provided on the outer wall surface of the stirring rod.

[0013] In summary, the present invention has the following beneficial effects:

[0014] 1. By providing a support block and a sliding design of the support block, the fixed drip irrigation inside the contact sleeve can be moved out of the position of the beaker by adjusting its position, thereby preventing excess liquid from entering the beaker after the titration is completed, thereby affecting the specific effect of the titration. On the other hand, by moving the support block, the drip irrigation can be stored inside the first sliding groove, which is convenient for storing the entire device. The design of the contact sleeve can protect the area around the drip irrigation pipette, thereby preventing scratches or even damage caused by direct contact.

[0015] 2. By setting the limit hole, the position of the beaker can be fixed. With the clamping setting of the limit plate, the beaker used for the experiment can be adjusted at any time. Multiple experiments can be carried out at the same time, which is convenient for comparing the results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the fixed disk structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the support block structure of the utility model.

[0020] Figure numerals: 1. fixed plate; 2. first sliding groove; 3. second sliding groove; 4. support block; 5. sliding block; 6. support hole; 7. contact sleeve; 8. first connecting block; 9. contact hole; 10. connecting plate; 11. fastening bolt; 12. potentiometric titrator body; 13. second connecting block; 14. sliding rod; 15. rotating groove; 16. rotating rod; 17. limiting plate; 18. connecting hole; 19. limiting hole; 20. fixed box; 21. driving motor; 22. stirring rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] refer to Figure 1-Figure 4The tumbler 7 is a kind of tumbler that is fixed on the tumbler 1 and is convenient to install and can be used for the tumbler 2 of the tumbler 1.

[0023] The outer wall of the fixed disk 1 is fixedly installed with a first connecting block 8, and a contact hole 9 is opened on the top surface of the first connecting block 8. Through the design of the contact hole 9, it can match the gap on its inner wall and the connecting plate 10. Tightening the fastening bolts 11 drives the contact of the two connecting plates 10 to be closer, thereby narrowing the contact hole 9 to fix the position of the fixed disk 1. The inner wall of the contact hole 9 has a gap. Two connecting plates 10 are fixedly installed on one side of the first connecting block 8. The contact parts of the two connecting plates 10 are aligned with the gap on the inner wall of the contact hole 9. A threaded hole is opened on one side of the connecting plate 10. One side of the first connecting block 8 A fastening bolt 11 is provided, and the fastening bolt 11 is connected to the connecting plate 10 through a threaded hole opened on one side of the connecting plate 10. A potentiometric titrator body 12 is provided on the bottom surface of the fixed disk 1. A second connecting block 13 is fixedly installed on one side of the potentiometric titrator body 12. A sliding rod 14 is fixedly installed on the top surface of the second connecting block 13. The design of the sliding rod 14 can limit the position of the fixed disk 1 so that it can move up and down along its trajectory. The position of the fixed disk 1 can be adjusted according to the different specifications of the dropper. The fixed disk 1 is connected to the potentiometric titrator body 12 through the contact hole 9 and the sliding rod 14. A rotating groove 15 is provided on the top surface of the titrator body 12, a rotating rod 16 is fixedly installed on the inner bottom surface of the rotating groove 15, a limiting disk 17 is provided inside the rotating groove 15, a connecting hole 18 is provided on the top surface of the limiting disk 17, the limiting disk 17 is clamped to the inside of the rotating groove 15 through the rotating rod 16 and the connecting hole 18, a plurality of limiting holes 19 are provided on the top surface of the limiting disk 17, and the position of the beaker can be fixed by the setting of the limiting holes 19. With the clamping setting of the limiting disk 17, the beaker used for the experiment can be adjusted at any time, multiple experiments can be carried out at the same time, and it is convenient to compare the results. A through hole is provided on the top surface of the fixed disk 1, and a fixed box 20 is fixedly installed on the top surface of the fixed disk 1. A drive motor 21 is provided inside the fixed box 20. Through the design of the drive motor 21, it can be used as a driving device for the stirring member to ensure that the stirring member can operate normally after the power is turned on. A stirring rod 22 is fixedly installed on the output end of the drive motor 21, and a threaded protrusion is provided on the outer wall of the stirring rod 22. Through the design of the stirring rod 22, combined with the threaded protrusion provided on its outer wall, the liquid medicine inside the beaker can be stirred, so that the solution after titration can be better mixed, thereby increasing the utilization efficiency of the device.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel potentiometric titrator, comprising a fixed disk (1), characterized in that: The top surface of the fixed disk (1) is provided with a plurality of first sliding grooves (2), and second sliding grooves (3) are provided on both sides of the interior of the first sliding groove (2). A support block (4) is provided inside the first sliding groove (2), and sliding blocks (5) are fixedly installed on both sides of the support block (4). The support block (4) is clamped in the interior of the first sliding groove (2) through the second sliding groove (3) and the sliding block (5). A support hole (6) is provided on the top surface of the support block (4), and a contact sleeve (7) is sleeved inside the support hole (6).

2. A novel potentiometric titrator according to claim 1, characterized in that, A first connecting block (8) is fixedly mounted on the outer wall of the fixing plate (1), a contact hole (9) is provided on the top surface of the first connecting block (8), an inner wall surface of the contact hole (9) has a slit, two connecting plates (10) are fixedly mounted on one side of the first connecting block (8), contact portions of the two connecting plates (10) are aligned with the slit on the inner wall surface of the contact hole (9), a threaded hole is provided on one side of the connecting plate (10), a fastening bolt (11) is provided on one side of the first connecting block (8), and the fastening bolt (11) is connected to the connecting plate (10) through the threaded hole provided on one side of the connecting plate (10).

3. A novel potentiometric titrator according to claim 2, characterized in that, The bottom surface of the fixed disk (1) is provided with a potentiometric titrator body (12), a second connecting block (13) is fixedly mounted on one side of the potentiometric titrator body (12), a sliding rod (14) is fixedly mounted on the top surface of the second connecting block (13), and the fixed disk (1) is connected to the potentiometric titrator body (12) through the contact hole (9) and the sliding rod (14).

4. A novel potentiometric titrator according to claim 1, characterized in that, The top surface of the potentiometric titrator body (12) is provided with a rotation groove (15), the inner bottom surface of the rotation groove (15) is fixedly mounted with a rotation rod (16), the inner portion of the rotation groove (15) is provided with a limit plate (17), the top surface of the limit plate (17) is provided with a connection hole (18), the limit plate (17) is clamped in the inner portion of the rotation groove (15) through the rotation rod (16) and the connection hole (18), and the top surface of the limit plate (17) is provided with a plurality of limit holes (19).

5. A novel potentiometric titrator according to claim 1, characterized in that, A through hole is provided on the top surface of the fixed disk (1), a fixed box (20) is fixedly mounted on the top surface of the fixed disk (1), and a driving motor (21) is sleeved inside the fixed box (20).

6. A novel potentiometric titrator according to claim 5, characterized in that: A stirring rod (22) is fixedly mounted on the output end of the driving motor (21), and a threaded protrusion is provided on the outer wall surface of the stirring rod (22).

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