Automatic potentiometric titrator
By introducing automatic adjustment and cleaning mechanisms into the automatic potentiometer, the labor-intensive problem of manual cleaning of electrodes and burettes is solved, automatic cleaning is achieved, and experimental efficiency is improved.
Patent Information
- Application Number
- CN202420564111.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-03-22
AI Technical Summary
After the experiment is completed, staff are required to manually clean the electrodes and burets, which leads to the cleaning process being labor-intensive and time-consuming and affects the experimental efficiency.
An automatic potentiometer is designed, including an adjustment mechanism, including a servo motor, limiting slot, rotating shaft, rotating plate and linear module, which can automatically adjust and clean the buret tube and electrode to avoid manual removal and cleaning.
Automatic cleaning of the buret tube and electrode is realized, reducing manual operation time and improving experimental efficiency and convenience.
Smart Images
Figure CN222166954U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of potentiometric titrators, in particular to an automatic potentiometric titrator. Background Art
[0002] Automatic potentiometric titrator is a common analytical instrument for capacity analysis designed according to the principle of potentiometric method. The principle of potentiometric method is: select appropriate indicator electrode and reference electrode to form a working battery with the solution to be tested. With the addition of titrant, the concentration of the ion to be tested changes continuously due to chemical reaction, so the potential of the indicator electrode changes accordingly. Near the titration end point, the concentration of the ion to be tested suddenly changes, causing a sudden jump in the electrode potential. Therefore, the titration end point can be determined based on the sudden jump in the electrode potential. The instrument is divided into two parts: an electric meter and a titration system. The electric meter uses an electronic amplification control circuit to compare the potential between the indicator electrode and the reference electrode with a preset end point potential. The difference between the two signals is amplified to control the dripping speed of the titration system. After reaching the preset end point potential, the titration stops automatically. The instrument uses a microcomputer to control the dripping amount, and its structure is divided into two parts: an electric meter and a titration system.
[0003] According to Chinese patent application number CN202220274615.3, an automatic potentiometric titrator includes a detection platform, an electrode, a supporting device, and an adjusting component, wherein the supporting device and the adjusting component are installed on the detection platform, the supporting device is used to support and fix the electrode, the adjusting component includes an adjusting block and a threaded rod, one end of the threaded rod is threadedly connected to the adjusting block, and the other end is connected to the electrode, and the electrode connected to the threaded rod is driven to move by rotating the adjusting block to adjust the height of the electrode potential relative to the end point potential. With the cooperation of the threaded rod and the adjusting block, the height adjustment amplitude of the electrode (such as the reference electrode and the indicator electrode) is small, so that the height of the reference electrode and the indicator electrode can be fine-tuned, and the height can be adjusted to the required height quickly and more accurately, thereby avoiding the phenomenon of repeated adjustment. When the experiment is completed and the next round of experiments are carried out, the staff needs to clean the electrode and the burette before the next round of experiments. Since manual cleaning is more labor-intensive and time-consuming, an automatic potentiometric titrator is proposed to solve the above problems. Utility Model Content
[0004] (I) Purpose of the utility model
[0005] In order to solve the technical problems existing in the background technology, the utility model proposes an automatic potentiometric titrator, which has the advantages of being easy to clean, etc., and solves the problem that when the experiment is completed and the next round of experiments is carried out, the staff needs to clean the electrodes and the burette before the next round of experiments, and manual cleaning is labor-intensive and time-consuming.
[0006] (II) Technical solution
[0007] The utility model provides an automatic potentiometric titrator, comprising a titrator body and an adjusting mechanism, wherein a control panel is arranged on the front side of the titrator body, a burette is arranged on the adjusting mechanism, an electrode located at the front end of the burette is arranged on the adjusting mechanism, a reaction container is arranged at the top center of the titrator body, and the titrator body is provided with an adjusting mechanism which can facilitate the cleaning of the burette and the electrode.
[0008] Preferably, a groove is provided at the top center of the titrator body and is adapted to the outer diameter of the reaction container, and the burette and the electrode are located above the reaction container.
[0009] Preferably, the adjustment mechanism includes a warehouse body, a servo motor, a limit groove, a rotating shaft, a rotating plate, a linear module, a lifting plate, a container one and a container two, the warehouse body is opened inside the titrator body, the servo motor is arranged on the inner bottom wall of the warehouse body, the limit groove is opened at the top rear end of the titrator body, the rotating shaft is coaxially connected with the output shaft of the servo motor through a coupling, and the other end passes through and extends to the inside of the limit groove, the rotating plate is arranged at the top of the rotating shaft, the linear module is arranged at the top of the rotating plate, the lifting plate is arranged at the moving end of the linear module, the container one is arranged at the top of the titrator body and is located on the left side of the limit groove, and the container two is arranged at the top of the titrator body and is located on the left side of the container one.
[0010] Preferably, the diameter of the limiting groove is matched with the diameter of the rotating plate.
[0011] Preferably, a positioning groove 1 is provided on the top of the titrator body and is located on the left side of the limiting groove, and its diameter is adapted to the outer diameter of the container 1. A positioning groove 2 is provided on the top of the titrator body and is located on the left side of the positioning groove 1, and its diameter is adapted to the outer diameter of the container 2.
[0012] Compared with the prior art, the above technical solution of the utility model has the following beneficial technical effects: the automatic potentiometric titrator is provided with an adjustment mechanism, so when the experiment is completed and the next round of experiments is carried out, the staff does not need to remove the burette and the electrode for cleaning, so the burette and the electrode can be automatically cleaned. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 The utility model is a structural schematic diagram of an automatic potentiometric titrator.
[0014] Figure 2 This is a rear view of an automatic potentiometric titrator proposed by the utility model.
[0015] Figure 3 This is an enlarged view of point A in the automatic potentiometric titrator proposed by the utility model.
[0016] Figure numerals: 1. titrator body; 2. adjustment mechanism; 21. chamber; 22. servo motor; 23. limit groove; 24. rotating shaft; 25. rotating plate; 26. linear module; 27. lifting plate; 28. container one; 29. container two; 3. control panel; 4. burette; 5. electrode; 6. reaction container. DETAILED DESCRIPTION
[0017] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.
[0018] In the description of the utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0019] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, welding, riveting, bonding, etc., or a detachable connection, threaded connection, key connection, pin connection, etc., or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0020] like Figure 1-3As shown, an automatic potentiometric titrator proposed by the utility model comprises a titrator body 1 and an adjusting mechanism 2, a control panel 3 is provided on the front side of the titrator body 1, a burette 4 is provided on the adjusting mechanism 2, a titration bottle is connected above the burette 4, an electrode 5 located at the front end of the burette 4 is provided on the adjusting mechanism 2, a reaction vessel 6 is provided at the top center of the titrator body 1, the burette 4 is convenient for dropping the titration liquid not in the titration bottle into the reaction vessel 6 to react with the liquid, a groove is provided at the top center of the titrator body 1, and the groove is matched with the outer diameter of the reaction vessel 6, the burette 4 and the electrode 5 are located above the reaction vessel 6, and the titrator body 1 is provided with an adjusting mechanism 2 for facilitating the cleaning of the burette 4 and the electrode 5, and the electrode 5 is immersed in the test solution inside the reaction vessel 6 during the experiment, so as to facilitate reading of the experimental value, and by providing the adjusting mechanism 2, when the experiment is completed and the next round of experiments is carried out, there is no need for the staff to remove and clean the burette 4 and the electrode 5, so that the burette 4 and the electrode 5 can achieve the purpose of automatic cleaning.
[0021] In an optional embodiment, the adjustment mechanism 2 includes a bin 21, a servo motor 22, a limit groove 23, a rotating shaft 24, a rotating plate 25, a linear module 26, a lifting plate 27, a container 1 28 and a container 29. The bin 21 is opened inside the titrator body 1, the servo motor 22 is arranged on the inner bottom wall of the bin 21, the limit groove 23 is opened at the top rear end of the titrator body 1, the rotating shaft 24 is coaxially connected with the output shaft of the servo motor 22 through a coupling, and the other end passes through and extends to the inside of the limit groove 23, the rotating plate 25 is arranged at the top of the rotating shaft 24, the diameter of the limit groove 23 is adapted to the diameter of the rotating plate 25, so as to facilitate the rotation adjustment of the rotating plate 25, and the linear module 26 is arranged on the rotating plate 25. The top of the titrator body 1 is provided with a lifting plate 27, and the lifting plate 27 is provided at the moving end of the linear module 26. The container 1 28 is provided at the top of the titrator body 1 and is located on the left side of the limiting groove 23. The container 2 29 is provided at the top of the titrator body 1 and is located on the left side of the container 1 28. The top of the titrator body 1 is provided with a positioning groove 1 located on the left side of the limiting groove 23, and the diameter is adapted to the outer diameter of the container 1 28. The top of the titrator body 1 is provided with a positioning groove 2 located on the left side of the positioning groove 1, and the diameter is adapted to the outer diameter of the container 2 29. The positioning groove 1 and the positioning groove 2 respectively limit the container 1 28 and the container 2 29. The inside of the container 1 28 and the container 2 29 is provided with ionized water, which is convenient for cleaning the burette 4 and the electrode 5.
[0022] It should be noted that when the experiment is completed and the next round of experiments needs to be cleaned for the burette 4 and the electrode 5, the linear module 26 is first started through the control panel 3 to adjust the burette 4 and the electrode 5 on the lifting plate 27 upward and lift them, and then the servo motor 22 is started through the control panel 3, and the rotating shaft 24 drives the rotating plate 25 to rotate ninety degrees to the left through the limit of the limit groove 23, and the burette 4 and the electrode 5 are respectively rotated to the top of container 1 28 and container 2 29, and then the linear module 26 is started to drive the burette 4 and the electrode 5 to move downward to the inside of container 1 28 and container 2 29, respectively, so as to complete the automatic cleaning.
[0023] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.
Claims
1. An automatic potentiometric titrator, comprising a titrator body (1) and an adjusting mechanism (2), wherein a control panel (3) is provided on the front side of the titrator body (1), a burette (4) is provided on the adjusting mechanism (2), an electrode (5) located at the front end of the burette (4) is provided on the adjusting mechanism (2), and a reaction container (6) is provided at the top center of the titrator body (1), characterized in that: The titrator body (1) is provided with an adjustment mechanism (2) which facilitates the cleaning of the burette (4) and the electrode (5).
2. An automatic potentiometric titrator according to claim 1, characterized in that: A groove is provided at the center of the top of the titrator body (1) and is adapted to the outer diameter of the reaction container (6). The burette (4) and the electrode (5) are located above the reaction container (6).
3. An automatic potentiometric titrator according to claim 1, characterized in that: The regulating mechanism (2) comprises a bin body (21), a servo motor (22), a limit groove (23), a rotating shaft (24), a rotating plate (25), a linear module (26), a lifting plate (27), a container 1 (28) and a container 2 (29); the bin body (21) is disposed inside the titrator body (1); the servo motor (22) is disposed on the inner bottom wall of the bin body (21); the limit groove (23) is disposed at the top rear end of the titrator body (1); the rotating shaft (24) is connected to the output shaft of the servo motor (22) The rotating plate (25) is coaxially connected through a coupling, and the other end passes through and extends to the inside of the limiting groove (23); the rotating plate (25) is arranged on the top of the rotating shaft (24); the linear module (26) is arranged on the top of the rotating plate (25); the lifting plate (27) is arranged on the movable end of the linear module (26); the container 1 (28) is arranged on the top of the titrator body (1) and is located on the left side of the limiting groove (23); and the container 2 (29) is arranged on the top of the titrator body (1) and is located on the left side of the container 1 (28).
4. An automatic potentiometric titrator according to claim 3, characterized in that: The diameter of the limiting groove (23) is matched to the diameter of the rotating plate (25).
5. An automatic potentiometric titrator according to claim 3, characterized in that: The top of the titrator body (1) is provided with a first positioning groove located on the left side of the limiting groove (23), and the diameter of which is adapted to the outer diameter of the first container (28); the top of the titrator body (1) is provided with a second positioning groove located on the left side of the first positioning groove, and the diameter of which is adapted to the outer diameter of the second container (29).