CN211627486U - Potentiometric titration device with adjusting function - Google Patents
Potentiometric titration device with adjusting function Download PDFInfo
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- CN211627486U CN211627486U CN201922155247.1U CN201922155247U CN211627486U CN 211627486 U CN211627486 U CN 211627486U CN 201922155247 U CN201922155247 U CN 201922155247U CN 211627486 U CN211627486 U CN 211627486U
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Abstract
The utility model belongs to the technical field of titration check out test set technique and specifically relates to a potentiometric titration device with regulatory function is related to, including base, reaction vessel and the support column of setting on the base, reference electrode and the indicating electrode of setting in reaction vessel, setting buret, the potentiometer of setting in reaction vessel one side in the reaction vessel top, the support column includes support column, bottom suspension dagger and base fixed connection, it rotates with the bottom suspension dagger to go up the support column and is connected, upward be provided with the buret mounting that is used for fixed buret on the support column, be provided with the electrode mounting that is used for fixed reference electrode and indicating electrode on the bottom suspension dagger, reference electrode and indicating electrode are connected with the both ends of potentiometer through the wire. The utility model discloses simple structure, convenient operation, the dismouting of being convenient for has the function of regulation, has improved the accuracy nature of experimental efficiency and experimental data greatly.
Description
Technical Field
The utility model belongs to the technical field of titration check out test set technique and specifically relates to a potentiometric titration device with regulatory function is related to.
Background
Potentiometric titration is a method in which an endpoint is determined from a "jump" in the potential of an indicator electrode during titration. The existing potentiometric titration device has the following defects:
1. when carrying out potentiometric titration operation, we generally directly get reference electrode and indicating electrode directly into the solution of awaiting measuring in the reaction vessel and measure, because two electrode position lack fixed, rock easily and touch each other, damage the electrode easily, lead to the reading of potentiometre unstable.
2. Many potentiometric titrators fix two electrodes on a support frame, and because the heights of reaction vessels are different, the electrodes sometimes have the problem that the solution to be measured cannot be touched.
3. Many potentiometric titration devices directly fix a burette above a reaction vessel, and sometimes when the burette is loaded and unloaded, a reagent solution in the burette may fall into a solution to be measured, which results in unstable reading of a potentiometer.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the aforesaid not enough, provide a simple structure, easy dismounting, be convenient for operation, measure accurate, have regulatory function's potentiometric titration device.
In order to achieve the above object, the technical solution of the present invention is: a potentiometric titration device with adjusting function comprises a base, a reaction container and a support column which are arranged on the base, a reference electrode and an indicating electrode which are arranged in the reaction container, a burette which is arranged above the reaction container, and a potentiometer which is arranged on one side of the reaction container, wherein the reaction container is used for holding a solution to be tested, the support column comprises an upper support column and a lower support column, the lower support column is fixedly connected with the base, the upper support column is rotatably connected with the lower support column, a burette fixing part for fixing the burette is arranged on the upper support column, the burette is fixed on the upper support column through the burette fixing part for titrating the solution to be tested in the reaction container, the operation is convenient, the test efficiency is improved, an electrode fixing part for fixing the reference electrode and the indicating electrode is arranged on the lower support column, the reference electrode and the indicating electrode are fixed on the lower support column through a motor fixing part, the stability of the reference electrode and the indicating electrode is improved, the phenomenon that the electrodes are damaged and the reading stability of the potentiometer is affected due to the fact that the two electrodes touch each other is avoided, and the reference electrode and the indicating electrode are connected with the two ends of the potentiometer through wires.
Preferably, the bottom of going up the support column is provided with downwardly extending's projection, the top of lower support column is provided with supplies support column male recess, be provided with in the recess and supply projection male shrinkage pool, the edge of going up the support column bottom is provided with a plurality of fixed orifices, be provided with on the lower support column with the communicating through-hole of recess, be provided with the fixed pin in the through-hole, the fixed pin passes the through-hole and can stretch into in the fixed orifices. According to needs, when the experiment operator will go up the support column rotation to suitable position, rotate the fixed pin, make it run through the lateral wall of bottom suspension dagger and stretch into in the fixed orifices, further to the fixed of going up the support column, avoid experiment operator at the titration in-process, go up the support column rotation, lead to outside the reagent of buret drips reaction vessel, increase experimental data's error.
Preferably, the burette fixing part comprises a first wing screw fixed on the upper support column, a first connecting rod connected with the first wing screw, and a burette clamp arranged at one end of the first connecting rod, wherein the burette clamp is used for clamping the burette. According to the needs of experiment, the vertical distance that the buret and reaction vessel were adjusted with fixing to the slip that the experiment user can be on the upper support column through first wing screw, also can slide and fix on first wing screw through first connecting rod and adjust the horizontal distance of buret and reaction vessel, easy operation adjusts the convenience, has improved experimental efficiency greatly.
Preferably, the electrode fixing part comprises a second wing-shaped screw fixed on the lower support column, a second connecting rod connected with the first wing-shaped screw, and an electrode chuck arranged at one end of the second connecting rod, wherein two clamping holes are formed in the electrode chuck and used for clamping the reference electrode and the indicating electrode respectively. According to the needs of the experiment, the experiment operator can adjust the depth of two electrodes immerging the solution to be measured through second wing screw and second connecting rod, easy operation adjusts the convenience, improves the accuracy nature of experimental efficiency and experimental data greatly.
Preferably, a magnetic stirrer for stirring the reaction system is arranged in the reaction container, and a magnetic driver for driving the magnetic stirrer is arranged in the base.
Through adopting foretell technical scheme, the beneficial effects of the utility model are that: the utility model discloses a buret mounting and electrode mounting are fixed buret, reference electrode, indicating electrode respectively for two electrodes are difficult for touching each other, are difficult for rocking, increase the life of electrode, and titration reagent is convenient effective, has improved the accuracy nature of experimental efficiency and experimental data greatly, easy dismounting, the regulation of being convenient for. The utility model discloses still fix the buret on rotatable support column, rotate the buret mounting earlier and install the buret to one side of reaction vessel, rotate again and titrate to the corresponding position in reaction vessel top, titrate and rotate out after accomplishing again, dismantle the buret for the buret dismouting is more convenient, titrates more effectively, has reduced the error nature of experimental data. Additionally, the utility model discloses still increased the steadiness of support column in the junction of upper support post and bottom suspension dagger, avoided titrating the in-process to appear titrating and rock and lead to producing great experimental data error. The utility model discloses simple structure, convenient operation, the dismouting of being convenient for has the function of regulation, has improved the accuracy nature of experimental efficiency and experimental data greatly.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a burette fixing member according to the present invention;
fig. 3 is a schematic structural view of the motor fixing member of the present invention;
fig. 4 is an enlarged view of a point a in fig. 1.
Description of the main reference numerals: (1, a base, 11, a magnetic driver, 2, a reaction vessel, 21, a magnetic stirrer, 3, a support column, 31, an upper support column, 311, a convex column, 312, a fixing hole, 32, a lower support column, 321, a groove, 322, a concave hole, 323, a through hole, 324, a fixing pin, 4, a reference electrode, 5, an indicating electrode, 6, a burette, 7, a potentiometer, 8, a burette fixing piece, 81, a first wing screw, 82, a first connecting rod, 83, a burette clamp, 9, an electrode fixing piece, 91, a second wing screw, 92, a second connecting rod, 93, an electrode clamp head and 94, a clamp hole).
Detailed Description
The invention is further described with reference to the following figures and specific examples.
The directional wording mentioned in the present invention, for example: upper, lower, inner, outer, etc., are referred to in the description only in the direction of fig. 1. Accordingly, the directional terminology used is for the purpose of illustration only and is not intended to be limiting of the invention.
Example 1
As shown in fig. 1, a potentiometric titration apparatus with adjusting function, includes a base 1, a reaction container 2 and a support column 3 arranged on the base 1, a reference electrode 4 and an indicating electrode 5 arranged in the reaction container 2, a burette 6 arranged above the reaction container 2, and a potentiometer 7 arranged on one side of the reaction container 2, wherein the reaction container 2 is used for holding a solution to be measured, the support column 3 includes an upper support column 31 and a lower support column 32, the lower support column 32 is fixedly connected with the base 1, the upper support column 31 is rotatably connected with the lower support column 32, the upper support column 31 is provided with a burette fixing member 8 for fixing the burette 6, the burette 6 is fixed on the upper support column 31 through the burette fixing member 8 for titrating the solution to be measured in the reaction container 2, thereby facilitating operation and improving test efficiency, the lower support column 32 is provided with an electrode fixing member 9 for fixing the reference electrode 4 and the indicating electrode 5, reference electrode 4 and indicating electrode 5 are fixed on lower support column 32 through motor mounting 9, have increased reference electrode 4 and indicating electrode 5's stability, avoid two electrodes to touch each other and damage the electrode and influence the stability of potentiometre 7 reading, reference electrode 4 and indicating electrode 5 are connected with the both ends of potentiometre 7 through the wire.
As shown in fig. 2, the burette fixing member 8 comprises a first wing screw 81 fixed on the upper support column 31, a first connecting rod 82 connected with the first wing screw 81, and a burette clamp 83 arranged at one end of the first connecting rod 82, wherein the burette clamp 83 is used for clamping the burette 6. According to the needs of experiment, the longitudinal distance that the laboratory technician can adjust buret 6 and reaction vessel 2 through the slip of first wing screw 81 on upper support column 31 with fixed, also can slide and fix the transverse distance who adjusts buret 6 and reaction vessel 2 on first wing screw 81 through first connecting rod 82, easy operation adjusts the convenience, has improved experimental efficiency greatly.
As shown in fig. 3, the electrode fixing member 9 includes a second wing screw 91 fixed to the lower support column 32, a second connecting rod 92 connected to the first wing screw 91, and an electrode clamp 93 disposed at one end of the second connecting rod 92, wherein two clamping holes 94 are disposed in the electrode clamp 93, and the two clamping holes 94 are respectively used for clamping the reference electrode 4 and the indicator electrode 5. According to the needs of the experiment, the experiment operator can adjust the depth of two electrodes immersed in the solution to be measured through the second wing screw 91 and the second connecting rod 92, the operation is simple, the adjustment is convenient, and the accuracy of the experiment efficiency and the experiment data is greatly improved.
A magnetic stirrer 21 for stirring a reaction system is arranged in the reaction container 2, and a magnetic driver 11 for driving the magnetic stirrer 21 is arranged in the base 1.
The working principle of the embodiment is as follows: the device is when using, according to the actual conditions of the solution that awaits measuring in reaction vessel 2, fix reference electrode 4 and indicating electrode 5 respectively in two clamp holes 94 on the electrode mounting 9 on lower support column 32, according to reaction vessel 2's height, adjust buret 6 mounting in the position of upper support column 31, support column 31 on rotating, make buret mounting 8 in one side of reaction vessel 2, install buret 6, support column 31 on rotating again, make buret 6 in the corresponding position of reaction vessel 2 top, begin to titrate, after titrating, again support column 31 rotates one side to reaction vessel 2, it can to dismantle buret 6.
Example 2
As shown in fig. 1, a potentiometric titration apparatus with adjusting function, includes a base 1, a reaction container 2 and a support column 3 arranged on the base 1, a reference electrode 4 and an indicating electrode 5 arranged in the reaction container 2, a burette 6 arranged above the reaction container 2, and a potentiometer 7 arranged on one side of the reaction container 2, wherein the reaction container 2 is used for holding a solution to be measured, the support column 3 includes an upper support column 31 and a lower support column 32, the lower support column 32 is fixedly connected with the base 1, the upper support column 31 is rotatably connected with the lower support column 32, the upper support column 31 is provided with a burette fixing member 8 for fixing the burette 6, the burette 6 is fixed on the upper support column 31 through the burette fixing member 8 for titrating the solution to be measured in the reaction container 2, thereby facilitating operation and improving test efficiency, the lower support column 32 is provided with an electrode fixing member 9 for fixing the reference electrode 4 and the indicating electrode 5, reference electrode 4 and indicating electrode 5 are fixed on lower support column 32 through motor mounting 9, have increased reference electrode 4 and indicating electrode 5's stability, avoid two electrodes to touch each other and damage the electrode and influence the stability of potentiometre 7 reading, reference electrode 4 and indicating electrode 5 are connected with the both ends of potentiometre 7 through the wire.
As shown in fig. 4, the bottom of going up support column 31 is provided with downwardly extending's projection 311, the top of lower support column 32 is provided with supplies upper support column 31 male recess 321, be provided with in the recess 321 and supply projection 311 male shrinkage pool 322, the edge of going up support column 31 bottom is provided with a plurality of fixed orifices 312, be provided with on the lower support column 32 with the communicating through-hole 323 of recess 321, be provided with the fixed pin 324 in the through-hole 323, the fixed pin 324 passes in the through-hole 323 can stretch into fixed orifices 312. According to needs, when the experiment operator rotates the upper support column 31 to a proper position, the fixing pin 324 is rotated to enable the upper support column 31 to penetrate through the side wall of the lower support column 32 and extend into the fixing hole 312, the upper support column 31 is further fixed, the experiment operator is prevented from rotating the upper support column 31 in the titration process, and the reagent in the burette 6 is caused to drip out of the reaction vessel 2, so that the error of experiment data is increased.
As shown in fig. 2, the burette fixing member 8 comprises a first wing screw 81 fixed on the upper support column 31, a first connecting rod 82 connected with the first wing screw 81, and a burette clamp 83 arranged at one end of the first connecting rod 82, wherein the burette clamp 83 is used for clamping the burette 6. According to the needs of experiment, the longitudinal distance that the laboratory technician can adjust buret 6 and reaction vessel 2 through the slip of first wing screw 81 on upper support column 31 with fixed, also can slide and fix the transverse distance who adjusts buret 6 and reaction vessel 2 on first wing screw 81 through first connecting rod 82, easy operation adjusts the convenience, has improved experimental efficiency greatly.
As shown in fig. 3, the electrode fixing member 9 includes a second wing screw 91 fixed to the lower support column 32, a second connecting rod 92 connected to the first wing screw 91, and an electrode clamp 93 disposed at one end of the second connecting rod 92, wherein two clamping holes 94 are disposed in the electrode clamp 93, and the two clamping holes 94 are respectively used for clamping the reference electrode 4 and the indicator electrode 5. According to the needs of the experiment, the experiment operator can adjust the depth of two electrodes immersed in the solution to be measured through the second wing screw 91 and the second connecting rod 92, the operation is simple, the adjustment is convenient, and the accuracy of the experiment efficiency and the experiment data is greatly improved.
A magnetic stirrer 21 for stirring a reaction system is arranged in the reaction container 2, and a magnetic driver 11 for driving the magnetic stirrer 21 is arranged in the base 1.
The working principle of the embodiment is as follows: when the device is used, according to the actual condition of the solution to be measured in the reaction vessel 2, the reference electrode 4 and the indicating electrode 5 are respectively fixed in the two clamping holes 94 on the electrode fixing part 9 on the lower support column 32, according to the height of the reaction vessel 2, the position of the upper support column 31 of the fixing part of the burette 6 is well adjusted, the upper support column 31 is rotated, so that the burette fixing piece 8 is arranged at one side of the reaction vessel 2, the burette 6 is installed, the upper supporting column 31 is rotated, so that the burette 6 is at the corresponding position above the reaction vessel 2, the fixing pin 324 is rotated to penetrate the side wall of the lower support column 32 and extend into the fixing hole 312, the upper support column 31 is further fixed, the titration is started, after the titration is completed, the fixing pin 324 is rotated to make the end far away from the fixing hole 312, and the upper support column 31 is rotated to one side of the reaction vessel 2, and the burette 6 is detached.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited to the above description, and all the equivalent changes and decorations made according to the claims of the present invention should still fall within the scope covered by the present invention.
Claims (5)
1. A potentiometric titration device with an adjusting function is characterized in that: including base, reaction vessel and support column, reference electrode and the indicating electrode of setting on the base in reaction vessel, setting buret, setting in reaction vessel one side the setting of reaction vessel top are at the potentiometre of reaction vessel one side, the support column includes support column, bottom suspension dagger and base fixed connection, it rotates with the bottom suspension dagger to go up the support column and is connected, upward be provided with the buret mounting that is used for fixed buret on the support column, be provided with the electrode mounting that is used for fixed reference electrode and indicating electrode on the bottom suspension dagger, reference electrode and indicating electrode are connected with the both ends of potentiometre through the wire.
2. A potentiometric titration device with adjustment function according to claim 1, wherein: the bottom of going up the support column is provided with downwardly extending's projection, the top of bottom suspension dagger is provided with supplies support column male recess, be provided with in the recess and supply projection male shrinkage pool, the edge of going up the support column bottom is provided with a plurality of fixed orifices, be provided with on the bottom suspension dagger with the communicating through-hole of recess, be provided with the fixed pin in the through-hole, the fixed pin passes the through-hole and can stretch into in the fixed orifices.
3. A potentiometric titration device with adjustment function according to claim 1, wherein: the buret mounting is including fixing first airfoil screw on last support column, the head rod of being connected with first airfoil screw, setting up the buret clamp in head rod one end, the buret clamp is used for cliping the buret.
4. A potentiometric titration device with adjustment function according to claim 1, wherein: the electrode fixing part comprises a second wing-shaped screw fixed on the lower support column, a second connecting rod connected with the first wing-shaped screw, and an electrode chuck arranged at one end of the second connecting rod, wherein two clamping holes are formed in the electrode chuck and used for clamping the reference electrode and the indicating electrode respectively.
5. A potentiometric titration device with adjustment function according to claim 1, wherein: the reaction vessel is internally provided with a magnetic stirrer for stirring a reaction system, and the base is internally provided with a magnetic driver for driving the magnetic stirrer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922155247.1U CN211627486U (en) | 2019-12-05 | 2019-12-05 | Potentiometric titration device with adjusting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922155247.1U CN211627486U (en) | 2019-12-05 | 2019-12-05 | Potentiometric titration device with adjusting function |
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| Publication Number | Publication Date |
|---|---|
| CN211627486U true CN211627486U (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922155247.1U Active CN211627486U (en) | 2019-12-05 | 2019-12-05 | Potentiometric titration device with adjusting function |
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| CN (1) | CN211627486U (en) |
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- 2019-12-05 CN CN201922155247.1U patent/CN211627486U/en active Active
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Address after: 362000 1st and 2nd floor, industrial building, Quanzhou Fengze Huashan Plastic Machinery Co., Ltd., Xunmei Industrial Zone, Chengdong street, Fengze District, Quanzhou City, Fujian Province Patentee after: Fujian Huacheng Engineering Research Institute Co., Ltd Address before: 362000 1st and 2nd floor, industrial building, Quanzhou Fengze Huashan Plastic Machinery Co., Ltd., Xunmei Industrial Zone, Chengdong street, Fengze District, Quanzhou City, Fujian Province Patentee before: Fujian Huacheng Engineering Quality Inspection Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |