CN209946067U

CN209946067U - Potentiometric titrator

Info

Publication number: CN209946067U
Application number: CN201920181517.3U
Authority: CN
Inventors: 向建平; 肖涵; 黄宇
Original assignee: Jiangxi Xinshuo Pharmaceutical Technology Co Ltd
Current assignee: Jiangxi Xinshuo Pharmaceutical Technology Co Ltd
Priority date: 2019-01-31
Filing date: 2019-01-31
Publication date: 2020-01-14
Anticipated expiration: 2029-01-31

Abstract

The utility model provides a potentiometric titrator, which comprises a titration electrode group, a titration tube, a host and a titration table, wherein the host comprises a detection system and a display device, the titration table is positioned on the host and is integrated with the host, a titration bracket is arranged on the titration table, the titration bracket comprises a base fixed on the titration table, the connecting rod, stopper and cover are located the support on the connecting rod, support pot head is located the connecting rod and is fixed with titration electrode group and buret on the other end, the support includes the fixed part, surrounding part and connecting portion, the surrounding part is the loop configuration, be equipped with the through hole in the surrounding part, the connecting rod is equipped with first fixed orifices and the second fixed orifices that corresponds the through hole setting, first fixed orifices is equipped with two at least and mutual interval setting, potentiometric titrator still includes the mounting, the mounting is corresponding to be inserted and is located in through hole and first fixed orifices or through hole and second fixed orifices are fixed in the support on the connecting rod. Compared with the prior art, the utility model discloses a potentiometric titrator is convenient for operate.

Description

Potentiometric titrator

Technical Field

The utility model relates to a titration check out test set technical field especially relates to a potentiometric titrator.

Background

Compared with the direct potentiometry, the potentiometry titration method does not need to accurately measure the electrode potential value, so the influence of temperature and liquid junction potential is not important, the accuracy is better than that of the direct potentiometry, the common titration method indicates the titration end point by the color change of an indicator, and if the solution to be measured is colored or turbid, the indication of the end point is difficult or a proper indicator cannot be found at all. Potentiometric titration relies on a sudden electrode potential jump to indicate the endpoint of the titration. Before and after titration reaches an end point, the concentration of ions to be measured in the dropping liquid is continuously changed by n orders of magnitude, a potential jump is caused, and the content of the measured component is calculated by the consumption of the titrant.

However, the potentiometric titrator in the related art has a complex structure and high titration operation difficulty, and affects titration efficiency.

Therefore, there is a need to provide a new potentiometric titrator to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The potentiometric titrator structure to correlation technique is complicated, titrates the degree of difficulty greatly to the technical problem of efficiency is titrated in the influence, the utility model provides a potentiometric titrator convenient to operation.

A potentiometric titrator comprises a titration electrode group, a titration tube, a host and a titration table, wherein the host comprises a detection system and a display device, the titration electrode group and the display device are respectively electrically connected with the detection system, the titration table is positioned on the host and integrally arranged with the host, a titration support is arranged on the titration table and comprises a base fixed on the titration table, a connecting rod fixed on the base, a limit block and a movable connection part, the limit block is positioned at one end of the base and the movable connection part is positioned on the connecting rod, the titration electrode group and the titration tube are fixed at the other end of the support, the support comprises a fixing part used for fixing the titration electrode group and the titration tube, a surrounding part sleeved on the connecting rod and a connecting part used for connecting the fixing part and the surrounding part, the surrounding part is of an annular structure, a through hole penetrating through the axial surface of the surrounding part is formed in the surrounding part, a plurality of first fixing holes penetrating through the axial surface of the connecting rod and located on the same height and a plurality of second fixing holes penetrating through the axial surface of the connecting rod and located on different heights are formed in the connecting rod, the potentiometric titrator further comprises a fixing part, and the fixing part is correspondingly inserted into the through hole and the first fixing holes or the second fixing holes and the support is fixed on the connecting rod.

Preferably, the first fixing hole and the second fixing hole have a smaller diameter than the through hole.

Preferably, the first fixing hole has the same diameter as the second fixing hole.

Preferably, the first fixing hole and the second fixing hole are internally provided with internal threads, the outer surface of the fixing piece is provided with external threads matched with the internal threads, and the fixing piece is in threaded connection with the first fixing hole or the second fixing hole.

Preferably, the potentiometric titrator further comprises a stirring device fixed on the fixing part, wherein the stirring device comprises a driving motor and a stirring blade connected to an output shaft of the driving motor.

Preferably, the host is provided with at least one inclined plane, and the display device is positioned on the inclined plane.

Preferably, the display device adopts an LED display.

Preferably, the detection system is arranged on the titration table.

Compared with the prior art, the potentiometric titrator of the utility model has the titration table arranged on the host and integrated with the host, thus reducing the occupied area of the potentiometric titrator and facilitating the operation of users; and, through set up on the connecting rod first fixed orifices with the second fixed orifices, the mounting will the support is fixed in first fixed orifices or second fixed orifices to can realize right the quick adjustment of support height position, simultaneously, will through the mounting the support is fixed in the difference first fixed orifices can realize right the support carries out quick rotatory fixed, makes the user can be quick adjust to the angle and the height that the support needs to use, lets potentiometric titrimeter is convenient for operate, promotes and titrates efficiency.

Drawings

FIG. 1 is a schematic structural view of a potentiometric titrator according to the present invention;

fig. 2 is an exploded view of a portion of the assembly shown in fig. 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Please refer to fig. 1 and fig. 2 in combination. The utility model provides a potentiometric titrator 100, it includes titration electrode group 10, burette 20, host computer 30, titrates platform 40, mounting 50 and agitating unit 60. The titration table 40 is located on the main body 30 and is integrally provided with the main body 30.

The titration electrode group 10 includes a reference electrode and an indicator electrode, and is configured to detect inside the reaction container 70, generate a corresponding signal, and send the signal to the host 30.

The host 30 includes a detection system 31 and a display device 32, and the titration electrode group 10 and the display device 32 are electrically connected to the detection system 31, respectively. Specifically, the detection system 31 is disposed on the titration table 20, the host 30 is provided with an inclined plane 33, and the display device 32 is disposed on the inclined plane 33.

Preferably, the display device 32 is an LED display.

The titration table 40 is provided with a titration region 41 for placing the reaction container 70 and a titration support 42 for fixing the titration electrode group 10 and the burette 20.

The titration support 42 comprises a base 421 fixed on the titration table 40, a connecting rod 422 fixed on the base 421, a limit block 423 located at one end of the connecting rod 422 far away from the base 421, and a support 424 movably connected to the connecting rod 422, wherein the support 424 can slide up and down along the connecting rod 422, and the support 424 can rotate with the connecting rod as an origin.

One end of the support 424 is sleeved on the connecting rod 422, and the other end is fixed with the titration electrode group 10 and the burette 20. Specifically, the holder 424 includes a fixing portion 4241 for fixing the titrimetric electrode group 10 and the burette 20, a surrounding portion 4242 sleeved on the connecting rod 422, and a connecting portion 4243 connecting the fixing portion 4241 and the surrounding portion 4242.

The surrounding portion 4242 is in a ring structure, a through hole 4244 penetrating through an axial surface of the surrounding portion 4242 is formed in the surrounding portion 4242, and the through hole 4244 penetrating from a side surface close to the connecting rod 422 to a direction far away from the connecting rod 422 is formed in the surrounding portion 4242. Correspondingly, the connecting rod 422 is provided with a plurality of first fixing holes 4221 penetrating through the axial surface and located at the same height, and a plurality of second fixing holes 4222 penetrating through the axial surface and located at different heights. Specifically, one side of the connecting rod 422, which is close to the limit block 423, is provided with a first fixing hole 4221 which is arranged corresponding to the through hole 4244, one side of the connecting rod 422, which is close to the base 421, is provided with a second fixing hole 4222 which is arranged corresponding to the through hole 4244, and at least two first fixing holes 4221 are arranged at intervals. The fixing members 50 are correspondingly inserted into the through holes 4244 and the first fixing holes 4221 or into the through holes 4244 and the second fixing holes 4222 to fix the bracket 424 on the connecting rod 422.

It is understood that the first fixing hole 4221 and the second fixing hole 4222 are provided so that the bracket 424 can move up and down along the connection rod 422, that is, in the extending direction of the connection rod 422, a user can select a desired height by himself/herself, and after selection, the bracket 424 is fixed by inserting the fixing member 50 into the through hole 4244 and the corresponding recess hole. Meanwhile, the bracket 4242 can rotate by using the connecting rod 422 as an origin by arranging at least two first fixing holes 4221 and arranging the two first fixing holes 4221 at intervals, so that a user can select a required angle independently, and after the selection is finished, the fixing piece 50 is inserted into only the through hole 4244 and the corresponding first fixing hole 4221, so that the bracket 424 is fixed, and the use of the user is facilitated.

Preferably, the first fixing hole 4221 and the second fixing hole 4222 each have a smaller diameter than the through hole 4244, so that a user can align the through hole 4244 with the first fixing hole 4221 or the second fixing hole 4222 more easily during use, thereby inserting the fixing member 50 more easily.

Preferably, the first fixing hole 4221 and the second fixing hole 4222 have the same aperture, internal threads are arranged in the first fixing hole 4221 and the second fixing hole 4222, external threads matched with the internal threads are correspondingly arranged on the outer surface of the fixing member 50, and the fixing member 50 is in threaded connection with the first fixing hole 4221 or the second fixing hole 4222, so that the fixing effect of the fixing member 50 on the bracket 424 is increased.

Specifically, the connecting rod 422 completely falls into the base 421 to the orthographic projection on the base 421, the connecting rod 422 completely falls into the orthographic projection on the limiting block 423 to the limiting block 423, and the central axes of the connecting rod 422, the base 421 and the limiting block 423 are located on the same straight line. The stopper 423 and the base 421 can be restricted to the moving position of the bracket 424 to prevent the bracket 424 from moving out of the connecting rod 422.

The stirring device 60 is fixed on the fixing portion 4241, and the stirring device 60 includes a driving motor 61 and a stirring blade 62 connected to an output shaft of the driving motor 61. The solution in the reaction container 70 can be stirred by the stirring device 60, so that the reagent in the reaction container 70 can be rapidly and sufficiently mixed with the solution.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A potentiometric titrator comprises a titration electrode group, a titration tube, a host and a titration table, wherein the host comprises a detection system and a display device, the titration electrode group and the display device are respectively electrically connected with the detection system, the potentiometric titrator is positioned on the host and integrally arranged with the host, a titration support is arranged on the titration table, the titration support comprises a base fixed on the titration table, a connecting rod fixed on the base, a limiting block and a movable connection part, the limiting block and the movable connection part are arranged on one end of the base, the movable connection part is movably connected on the connecting rod, one end of the support is sleeved on the connecting rod, the titration electrode group and the titration tube are fixed on the other end of the support, the support comprises a fixing part and a sleeve part, the fixing part and the sleeve part are used for fixing the titration electrode group and the titration tube, the sleeve part is arranged on the connecting rod, the fixing part and the, the surrounding part is of an annular structure, a through hole penetrating through the axial surface of the surrounding part is formed in the surrounding part, a plurality of first fixing holes penetrating through the axial surface of the connecting rod and located on the same height and a plurality of second fixing holes penetrating through the axial surface of the connecting rod and located on different heights are formed in the connecting rod, the potentiometric titrator further comprises a fixing part, and the fixing part is correspondingly inserted into the through hole and the first fixing holes or the second fixing holes and the support is fixed on the connecting rod.

2. The potentiometric titrator according to claim 1, wherein the first fixing hole and the second fixing hole each have a smaller diameter than the through hole.

3. The potentiometric titrator of claim 2, wherein the first fixed well and the second fixed well have the same pore size.

4. The potentiometric titrator as claimed in claim 3, wherein the first fixing hole and the second fixing hole are both provided with internal threads, the outer surface of the fixing piece is provided with external threads matched with the internal threads, and the fixing piece is in threaded connection with the first fixing hole or the second fixing hole.

5. The potentiometric titrator of claim 1, further comprising an agitation device fixed on the fixing portion, wherein the agitation device comprises a driving motor and an agitation blade connected to an output shaft of the driving motor.

6. The potentiometric titrator of claim 1, wherein the main body comprises at least one inclined surface, and the display device is located on the inclined surface.

7. The potentiometric titrator of claim 1, wherein the display device is an LED display.

8. The potentiometric titrator of claim 1, wherein the detection system is disposed on the titration table.