Automatic potentiometric titrator

Abstract

The utility model discloses an automatic electric potential titrator relates to titrator technical field, this automatic electric potential titrator, including titrator body, the upper end of titrator body one side is provided with the top seat, the upper end of top seat is provided with the burette, the rear end of titrator body is provided with rear seat, the upper end of titrator body other side is provided with first electromagnetic stirrer, the top of rear seat is provided with second electromagnetic stirrer, the front end of titrator body is provided with control panel, the upper end of first electromagnetic stirrer and second electromagnetic stirrer all is provided with the stirrer, be provided with the down pressure subassembly between first electromagnetic stirrer and second electromagnetic stirrer, and the present scheme has solved the automatic electric potential titrator of existing all is to one and carries out stirring operation, needs multiple stirring and needs waiting, one by one and carries out stirring, and the lower pressing plate is also easy to rotate, leads to the problem of directional deviation, and is easy to contact with cup body and leads to damage.

Description

Technical Field

[0001] This utility model relates to the field of titrator technology, specifically to an automatic potentiometric titrator. Background Technology

[0002] In addition to performing potentiometric titrations, including acid-base titrations, redox titrations, precipitation titrations, complexometric titrations, and non-aqueous titrations, automatic potentiometric titrators can also perform constant pH measurements. With optional accessories, they can perform photometric titrations, polarimetric titrations, Karl Fischer titrations, surfactant titrations, and other titration analysis methods. When used in conjunction with a fully automatic multi-sample converter, automatic titrators can not only efficiently automate the measurement of large numbers of samples, but also improve the repeatability and reliability of the analysis. They are simple to operate, saving time and effort, and are suitable for various aspects of quality control, inspection, analysis, research, and development.

[0003] For example, the Chinese authorized patent (Automatic Potentiometric Titrator) with publication number CN217717648U includes a detection platform, electrodes, a support device, and an adjustment component. The support device and adjustment component are mounted on the detection platform. The support device supports and fixes the electrodes. The adjustment component includes an adjustment block and a threaded rod. One end of the threaded rod is threadedly connected to the adjustment block, and the other end is connected to the electrodes. Rotating the adjustment block moves the electrodes connected to the threaded rod, thereby adjusting the height of the electrodes relative to the endpoint potential. With the cooperation of the threaded rod and the adjustment block, the height adjustment range of the electrodes (e.g., reference electrodes and indicator electrodes) is small, thus enabling fine-tuning of the height of the reference and indicator electrodes. This allows for quick and more accurate adjustment to the required height, avoiding repeated adjustments.

[0004] However, existing automatic potentiometric titrators only perform stirring operations on one device at a time. If multiple stirring operations are required, it is necessary to wait and stir one by one. In addition, the lower platen is prone to rotation, which can cause directional deviation and contact with the cup body, resulting in damage. Therefore, it does not meet the current needs, so we proposed an automatic potentiometric titrator. Utility Model Content

[0005] The purpose of this invention is to provide an automatic potentiometric titrator to solve the problems mentioned in the background art, which are that existing automatic potentiometric titrators only perform stirring operations on one device, and require waiting for multiple stirring operations, stirring one by one, and the lower pressure plate is prone to rotation, causing directional deviation and easy contact with the cup body, resulting in damage.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic potentiometric titrator, comprising: a titrator body, a top seat provided at the upper end of one side of the titrator body, a burette provided at the upper end of the top seat, a rear seat provided at the rear end of the titrator body, a first electromagnetic stirrer provided at the upper end of the other side of the titrator body, a second electromagnetic stirrer provided at the top of the rear seat, a control panel provided at the front end of the titrator body, a stirring bar provided at the upper end of both the first and second electromagnetic stirrers, and a pressing component provided between the first and second electromagnetic stirrers.

[0007] Preferably, the pressing assembly includes a first pressing plate and a second pressing plate, which are placed opposite each other. One side surface of one end of the first pressing plate and the second pressing plate is provided with a limiting hole, and the upper surface of the other end of the first pressing plate and the second pressing plate is provided with a mounting groove, which extends through the first pressing plate and the second pressing plate vertically.

[0008] Preferably, a first guide hole is provided on the upper surface of one end of the first lower pressure plate, and a second guide hole is provided on the upper surface of one end of the second lower pressure plate, with the first guide hole and the second guide hole penetrating the first lower pressure plate and the second lower pressure plate respectively.

[0009] Preferably, the lower surface of the limiting port of both the first and second lower pressure plates is provided with a stabilizing baffle, and there are two stabilizing baffles.

[0010] Preferably, the pressing assembly further includes a first guide post and a second guide post, and the first guide post and the second guide post respectively pass through the first guide hole and the second guide hole, and the first pressing plate and the second pressing plate move along the first guide post and the second guide post respectively through the first guide hole and the second guide hole.

[0011] Preferably, the bottom end of the first guide post is provided with a fixed base, and the bottom end of the second guide post is also fixed on the fixed base.

[0012] Preferably, both the top ends of the first guide post and the second guide post are provided with sockets, and the top end of the socket is provided with a limiting seat.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model sets a rear seat at the rear end of the titrator body, and the pressing component includes a first pressing plate and a second pressing plate. The first pressing plate and the second pressing plate are respectively fitted outside the first guide post and the second guide post through the first guide hole and the second guide hole, and move up and down along the first guide post and the second guide post. The two stable baffles contact each other and press against the first guide post and the second guide post, thereby limiting the first pressing plate and the second pressing plate, avoiding the rotation from affecting the use effect and position of the electrode, improving stability and safety. In addition, no extra parts are used to limit the first pressing plate and the second pressing plate, which improves flexibility and convenience. The first electromagnetic stirrer and the second electromagnetic stirrer are started, driving the stir bar to rotate and mix the solution in the beaker. Multiple liquids can be operated at the same time, which improves efficiency. This solves the problem that existing automatic potentiometric titrators only perform stirring operations on one, and multiple stirrings require waiting and stirring one by one. In addition, the pressing plate is easy to rotate, causing directional deviation and easy contact with the beaker body, resulting in damage.

[0015] (2) By adjusting the height of the first and second pressure plates, the first and second pressure plates will press down on the top of the beaker, thereby achieving a stabilizing effect. Furthermore, the way the first and second pressure plates move is suitable for beakers of different sizes, thus improving applicability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the downward pressing component structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the exploded structure of the pressing component of this utility model;

[0019] Figure 4 This is a bottom view of the first lower pressure plate structure of this utility model;

[0020] In the diagram: 1. Titrator body; 2. Top mount; 3. Burette; 4. Rear mount; 5. Lowering assembly; 6. Control panel; 7. First electromagnetic stirrer; 8. Second electromagnetic stirrer; 9. Stirring bar; 10. First lowering plate; 11. Second lowering plate; 12. Limiting port; 13. Mounting slot; 14. First guide hole; 15. Stabilizing baffle; 16. Limiting top mount; 17. First guide post; 18. Second guide post; 19. Fixed base; 20. Second guide hole; 21. Socket. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figure 1-4 An embodiment of this utility model provides an automatic potentiometric titrator, comprising: a titrator body 1, a top seat 2 disposed on the upper end of one side of the titrator body 1, a burette 3 disposed on the upper end of the top seat 2, a rear seat 4 disposed at the rear end of the titrator body 1, a first electromagnetic stirrer 7 disposed on the upper end of the other side of the titrator body 1, a second electromagnetic stirrer 8 disposed at the top of the rear seat 4, a control panel 6 disposed at the front end of the titrator body 1, a stir bar 9 disposed on the upper end of both the first electromagnetic stirrer 7 and the second electromagnetic stirrer 8, and a pressing component 5 disposed between the first electromagnetic stirrer 7 and the second electromagnetic stirrer 8, the pressing component 5 including a first pressing... The first lower pressure plate 10 and the second lower pressure plate 11 are placed opposite each other. A limit hole 12 is provided on one side surface of one end of the first lower pressure plate 10 and the second lower pressure plate 11. An installation groove 13 is provided on the upper surface of the other end of the first lower pressure plate 10 and the second lower pressure plate 11. The installation groove 13 passes through the first lower pressure plate 10 and the second lower pressure plate 11 vertically. A first guide hole 14 is provided on the upper surface of one end of the first lower pressure plate 10. A second guide hole 20 is provided on the upper surface of one end of the second lower pressure plate 11. The first guide hole 14 and the second guide hole 20 pass through the first lower pressure plate 10 and the second lower pressure plate 11 vertically, respectively.

[0023] The first lower pressure plate 10 and the second lower pressure plate 11 are respectively fitted onto the outside of the first guide post 17 and the second guide post 18 through the first guide hole 14 and the second guide hole 20, and move up and down along the first guide post 17 and the second guide post 18, as shown below. Figure 1 and Figure 2 As shown, the height of the first lower pressure plate 10 and the second lower pressure plate 11 can be adjusted. The lower pressure assembly 5 also includes a first guide post 17 and a second guide post 18, and the first guide post 17 and the second guide post 18 pass through the first guide hole 14 and the second guide hole 20 respectively. The first lower pressure plate 10 and the second lower pressure plate 11 move along the first guide post 17 and the second guide post 18 respectively through the first guide hole 14 and the second guide hole 20.

[0024] In use, place two beakers on the first electromagnetic stirrer 7 and the second electromagnetic stirrer 8 respectively, and place two stir bar 9s into the two beakers respectively. Insert the electrodes into the beakers along the mounting groove 13. At this time, the first pressure plate 10 and the second pressure plate 11 will press down on the top of the beaker, thereby achieving a stabilizing effect. The movement of the first pressure plate 10 and the second pressure plate 11 is suitable for beakers of different sizes, improving applicability. Start the first electromagnetic stirrer 7 and the second electromagnetic stirrer 8 to drive the stir bar 9 to rotate and mix the solution in the beaker.

[0025] The lower surface of the limiting port 12 of the first lower pressure plate 10 and the second lower pressure plate 11 is provided with a stabilizing baffle 15, and there are two stabilizing baffles 15. The bottom end of the first guide post 17 is provided with a fixed base 19, and the bottom end of the second guide post 18 is also fixed on the fixed base 19. The top ends of the first guide post 17 and the second guide post 18 are both provided with sockets 21, and the top end of the sockets 21 is provided with a limiting top seat 16.

[0026] The two stabilizing baffles 15 contact each other, abut against each other, and press against the first guide post 17 and the second guide post 18, thereby limiting the first lower pressure plate 10 and the second lower pressure plate 11, preventing rotation from affecting the use effect and position of the electrode, improving stability and safety, and without using extra parts to limit the first lower pressure plate 10 and the second lower pressure plate 11, improving flexibility and convenience.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic potentiometric titrator, comprising a titrator body (1), characterized in that: A top seat (2) is provided on the upper end of one side of the titrator body (1), and a burette (3) is provided on the upper end of the top seat (2). A rear seat (4) is provided at the rear end of the titrator body (1). A first electromagnetic stirrer (7) is provided on the upper end of the other side of the titrator body (1). A second electromagnetic stirrer (8) is provided at the top of the rear seat (4). A control panel (6) is provided at the front end of the titrator body (1). A stir bar (9) is provided at the upper end of both the first electromagnetic stirrer (7) and the second electromagnetic stirrer (8). A pressing component (5) is provided between the first electromagnetic stirrer (7) and the second electromagnetic stirrer (8).

2. The automatic potentiometric titrator according to claim 1, characterized in that: The pressing assembly (5) includes a first pressing plate (10) and a second pressing plate (11), and the first pressing plate (10) and the second pressing plate (11) are placed opposite each other. A limit port (12) is provided on one side surface of one end of the first pressing plate (10) and the second pressing plate (11). An installation groove (13) is provided on the upper surface of the other end of the first pressing plate (10) and the second pressing plate (11), and the installation groove (13) passes through the first pressing plate (10) and the second pressing plate (11) vertically.

3. The automatic potentiometric titrator according to claim 2, characterized in that: The upper surface of one end of the first lower pressure plate (10) is provided with a first guide hole (14), and the upper surface of one end of the second lower pressure plate (11) is provided with a second guide hole (20). The first guide hole (14) and the second guide hole (20) pass through the first lower pressure plate (10) and the second lower pressure plate (11) respectively.

4. The automatic potentiometric titrator according to claim 2, characterized in that: The lower surface of the limiting port (12) of the first lower pressure plate (10) and the second lower pressure plate (11) is provided with a stabilizing baffle (15), and there are two stabilizing baffles (15).

5. The automatic potentiometric titrator according to claim 3, characterized in that: The pressing assembly (5) further includes a first guide post (17) and a second guide post (18), and the first guide post (17) and the second guide post (18) pass through the first guide hole (14) and the second guide hole (20) respectively, and the first pressing plate (10) and the second pressing plate (11) move along the first guide post (17) and the second guide post (18) respectively through the first guide hole (14) and the second guide hole (20).

6. The automatic potentiometric titrator according to claim 5, characterized in that: The bottom end of the first guide post (17) is provided with a fixed base (19), and the bottom end of the second guide post (18) is also fixed on the fixed base (19).

7. The automatic potentiometric titrator according to claim 5, characterized in that: Both the top of the first guide post (17) and the second guide post (18) are provided with sockets (21), and the top of the sockets (21) is provided with limit seats (16).

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