CN214174219U

CN214174219U - High-sensitivity potentiometric titrator

Info

Publication number: CN214174219U
Application number: CN202022672679.2U
Authority: CN
Inventors: 蒋昌盛; 何皓
Original assignee: Shanghai Xianding Biological Technology Co ltd
Current assignee: Shanghai Xianding Biological Technology Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-09-10
Anticipated expiration: 2030-11-18

Abstract

The utility model provides a high sensitivity potentiometric titrator, including the host computer, set up the titration table on the host computer, install and be used for the fixed fixing base of titrating electrode group and buret and be used for driving the adjustment mechanism that the fixing base goes up and down to remove titrating bench top, the host computer includes detection device and display screen, titrate electrode group and display screen and be connected with the controller electricity in detecting respectively, titrate bench end and placed the titration cup, adjustment mechanism sets up in one side of titrating the table. When the titration cup is placed on the titration table, the adjusting mechanism controls the fixing seat to descend, so that the titration electrode group and the titration tube enter the titration cup, a bracket does not need to be manually adjusted, the operation is simple and convenient, and the detection efficiency is improved; after the detection is finished, the adjusting mechanism controls the fixed seat to ascend, so that the titration electrode group and the burette are moved out, the fixed seat can rotate by a rotation angle, and the fixed seat can move to one side so as to clean the titration electrode group and the burette.

Description

High-sensitivity potentiometric titrator

Technical Field

The utility model relates to a titrate and detect technical field, specifically be a high sensitivity 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.

In the prior art, when a worker needs to use an automatic potentiometric titrator, a solution to be measured needs to be placed in a specific bottle and then placed above the automatic potentiometric titrator, and when measurement is performed, because the height of a titration cup is fixed, a conducting electrode cannot contact the test solution, the prior art is generally a manual adjustment structure, and the operation is troublesome.

SUMMERY OF THE UTILITY MODEL

The technical problem solved by the utility model is to provide a high sensitivity potentiometric titrator to solve the problem that proposes in the above-mentioned background art.

The utility model provides a technical problem adopt following technical scheme to realize: a high-sensitivity potentiometric titrator comprises a host, a titration table arranged on the host, a fixed seat arranged at the upper end of the titration table and used for fixing a titration electrode group and a titration tube, and an adjusting mechanism used for driving the fixed seat to move up and down, wherein the host comprises a detection device and a display screen, the titration electrode group and the display screen are respectively electrically connected with a controller in detection, a titration cup is placed at the upper end of the titration table, and the adjusting mechanism is arranged at one side of the titration table;

adjustment mechanism is including installing the base in the host computer upper end, installing motor and the telescopic cylinder in the base upper end, setting up the rotation seat in the telescopic cylinder upper end, the telescopic cylinder includes telescopic link and the fixed screw rod that sets up at screw thread seat, the drive screw thread seat lift of telescopic link lower extreme, rotates a fixed mounting on the top of telescopic link, rotates the seat and passes through bull stick and fixing base fixed connection, the telescopic link is hollow structure, the screw thread connection that the screw rod corresponds with the screw thread seat, the motor passes through the reduction gears in the base and is connected with the screw drive in the telescopic cylinder.

As a further aspect of the present invention: the rotating seat comprises a seat plate arranged at the upper end of the telescopic rod, a seat post fixedly arranged in the middle of the seat plate, a rotating bearing sleeved at the outer end of the seat post, and a seat cover fixedly connected with an outer ring sleeve of the rotating bearing, wherein the outer end of the seat cover is fixedly connected with the rotating rod.

As a further aspect of the present invention: the upper end of rotating the seat is equipped with restriction pivoted bolt subassembly, bolt subassembly includes the spacer pin, connects the round pin handle of spacer pin, and the round pin handle sets up in the outer end of seat cover, and the spacer pin is polygonized structure, corresponds the spacer pin in the middle of the seat cover and is equipped with polygonized hole, correspond the spacer pin in the middle of the seat post and be equipped with the cotter way, the spacer pin inserts the inslot laminating setting of cotter way.

The side of base is equipped with the curb plate, is equipped with the fixed orifices on the curb plate, and the host computer side relevant position corresponds the fixed orifices of curb plate and is equipped with the screw, and the base passes through screw insertion fixed orifices and screw internal fixation and connects.

As a further aspect of the present invention: the lower end of the screw rod, which is positioned on the telescopic cylinder, is provided with a fixed bearing, the screw rod is inserted into the fixed bearing and is rotationally connected with the fixed bearing, and the fixed bearing limits the position of the screw rod.

As a further aspect of the present invention: the both ends of screw thread seat are equipped with limit slide, and telescopic cylinder corresponds limit slide and is equipped with the spout of vertical setting, and limit slide reciprocates in the spout.

As a further aspect of the present invention: the speed reducing mechanism comprises a driving gear arranged at the lower end of the motor, a driven gear arranged at the lower end of the screw rod and a speed reducing gear in meshed transmission connection with the driving gear and the driven gear respectively.

As a further aspect of the present invention: the titration cup is provided with a magnetic stirrer, and an electromagnetic driver is arranged in the titration table.

Compared with the prior art, the beneficial effects of the utility model are that: the fixed seat realizes the functions of steering and lifting through the adjusting mechanism, the motor is in transmission connection with the screw rod through the speed reducing mechanism, the screw rod is in threaded connection with the threaded seat, the screw rod rotates to enable the threaded seat to move up and down in the telescopic cylinder, and the lower end of the telescopic rod is fixedly connected with the threaded seat to move synchronously, so that the height of the fixed seat is adjusted, and the fixed seat realizes rotation adjustment through the rotating seat; when the titration cup is placed on the titration table, the adjusting mechanism controls the fixing seat to descend, so that the titration electrode group and the titration tube enter the titration cup, a bracket does not need to be manually adjusted, the operation is simple and convenient, and the detection efficiency is improved; after the detection is finished, the adjusting mechanism controls the fixed seat to ascend, so that the titration electrode group and the burette are moved out, the fixed seat can rotate by a rotation angle, and the fixed seat can move to one side so as to clean the titration electrode group and the burette.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of the adjusting mechanism of the present invention;

fig. 3 is a schematic structural view of the rotating base of the present invention;

the following are marked in the figure: 1. a host; 2. a titration table; 3. a fixed seat; 4. a display screen; 5. a titration cup; 6. a base; 7. a motor; 8. a telescopic cylinder; 9. a rotating seat; 31. a rotating rod; 61. a side plate; 62. a driving gear; 63. a driven gear; 64. a reduction gear; 81. a telescopic rod; 82. a threaded seat; 83. a screw; 84. fixing the bearing; 85. a limiting slide block; 91. a seat plate; 92. a seat post; 93. a rotating bearing; 94. a seat cover; 95. a spacing pin; 96. a pin handle.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the specific drawings.

As shown in FIGS. 1-3,

the embodiment provides a high-sensitivity potentiometric titrator which comprises a host 1, a titration table 2 arranged on the host 1, a fixing seat 3 arranged at the upper end of the titration table 2 and used for fixing a titration electrode group and a titration tube, and an adjusting mechanism used for driving the fixing seat 3 to move up and down, wherein the host 1 comprises a detection device and a display screen 4, the titration electrode group and the display screen 4 are respectively and electrically connected with a controller in detection, a titration cup 5 is placed at the upper end of the titration table 2, and the adjusting mechanism is arranged at one side of the titration table 2;

adjustment mechanism is including installing base 6 in host computer 1 upper end, installing at motor 7 and the telescopic cylinder 8 of 6 upper ends of base, setting at the rotation seat 9 of 8 upper ends of telescopic cylinder, telescopic cylinder 8 includes telescopic link 81 and the fixed screw rod 83 that sets up at screw thread seat 82, the drive screw thread seat 82 lift of telescopic link 81 lower extreme, rotates the top of 9 fixed mounting at telescopic link 81, rotates seat 9 and passes through

bull stick

31 and 3 fixed connection of fixing base, telescopic link 81 is hollow structure, the screw threaded connection that screw rod 83 and screw thread seat 82 correspond, motor 7 is connected through the screw rod 83 transmission in reduction gears in the base 6 and the telescopic cylinder 8.

Specifically, the fixed seat 3 realizes the functions of steering and lifting through the adjusting mechanism, the motor 7 is in transmission connection with the screw 83 through the speed reducing mechanism, the screw 83 is in threaded connection with the threaded seat 82, the screw 83 rotates to enable the threaded seat 82 to move up and down in the telescopic cylinder 8, and the lower end of the telescopic rod 81 is fixedly connected with the threaded seat 82 to move synchronously, so that the height of the fixed seat 3 is adjusted, and the fixed seat 3 realizes rotation adjustment through the rotating seat 9; when titrating cup 5 and placing on titrating platform 2, adjustment mechanism control fixing base 3 descends, makes titration electrode group and buret get into in titrating cup 5, detects the completion back, and adjustment mechanism control fixing base 3 rises, makes titration electrode group and buret shift out, and 3 accessible of fixing base rotate 9 realization turned angle, move to one side so that rinse titration electrode group and buret.

In this embodiment, the rotating seat 9 includes a seat plate 91 installed at the upper end of the telescopic rod 81, a seat post 92 fixedly disposed in the middle of the seat plate 91, a rotating bearing 93 sleeved on the outer end of the seat post 92, and a seat cover 94 fixedly connected with an outer ring cover of the rotating bearing 93, and the outer end of the seat cover 94 is fixedly connected with the rotating rod 31. The upper end of rotating seat 9 is equipped with restriction pivoted bolt subassembly, bolt subassembly includes spacer pin 95, connects the shank 96 of spacer pin 95, and shank 96 sets up the outer end at seat cover 94, and spacer pin 95 is polygonized structure, and the corresponding spacer pin 95 in the middle of seat cover 94 is equipped with polygonized hole, the corresponding spacer pin 95 in the middle of seat post 92 is equipped with the keyway, and spacer pin 95 inserts the keyway laminating setting to fix seat cover 94, when picking up shank 96, spacer pin 95 breaks away from the keyway, and seat cover 94 can rotate angle regulation.

In this embodiment, the side of base 6 is equipped with curb plate 61, is equipped with the fixed orifices on the curb plate 61, and the fixed orifices that the host computer 1 side relevant position corresponds curb plate 61 is equipped with the screw, and base 6 inserts fixed orifices and screw internal fixation through the screw and connects, the installation and the dismantlement of base 6 of being convenient for.

In this embodiment, the screw 83 is provided with a fixed bearing 84 at the lower end of the telescopic cylinder 8, the screw 83 is inserted into the fixed bearing 84 for rotational connection, and the fixed bearing 84 limits the position of the screw 83. Both ends of screw thread seat 82 are equipped with limit slide 85, and telescopic cylinder 8 corresponds limit slide 85 and is equipped with the spout of vertical setting, and limit slide 85 reciprocates in the spout, prevents that screw thread seat 82 from rotating, guarantees the rotatory lift removal that drives screw thread seat 82 of screw 83.

In this embodiment, the speed reducing mechanism includes a driving gear 62 disposed at a lower end of the motor 7, a driven gear 63 mounted at a lower end of the screw 83, and a speed reducing gear 64 engaged with and drivingly connected to the driving gear 62 and the driven gear 63, respectively.

In this embodiment, a magnetic stirrer is placed in the titration cup 5, and an electromagnetic driver is placed in the titration table 2 to drive the magnetic stirrer to stir in the titration cup 5.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a high sensitivity potentiometric titrator, includes the host computer, sets up the titration table on the host computer, install the fixing base that is used for fixed titration electrode group and buret in titration table upper end, and be used for driving the adjustment mechanism that the fixing base goes up and down to remove, its characterized in that: the host machine comprises a detection device and a display screen, the titration electrode group and the display screen are respectively and electrically connected with a controller in detection, a titration cup is placed at the upper end of the titration table, and the adjusting mechanism is arranged on one side of the titration table;

2. A high sensitivity potentiometric titrator according to claim 1, wherein: the rotating seat comprises a seat plate arranged at the upper end of the telescopic rod, a seat post fixedly arranged in the middle of the seat plate, a rotating bearing sleeved at the outer end of the seat post, and a seat cover fixedly connected with an outer ring sleeve of the rotating bearing, wherein the outer end of the seat cover is fixedly connected with the rotating rod.

3. A high sensitivity potentiometric titrator according to claim 2, wherein: the upper end of rotating the seat is equipped with restriction pivoted bolt subassembly, bolt subassembly includes the spacer pin, connects the round pin handle of spacer pin, and the round pin handle sets up in the outer end of seat cover, and the spacer pin is polygonized structure, corresponds the spacer pin in the middle of the seat cover and is equipped with polygonized hole, correspond the spacer pin in the middle of the seat post and be equipped with the cotter way, the spacer pin inserts the inslot laminating setting of cotter way.

4. A high sensitivity potentiometric titrator according to claim 1, wherein: the side of base is equipped with the curb plate, is equipped with the fixed orifices on the curb plate, and the host computer side relevant position corresponds the fixed orifices of curb plate and is equipped with the screw, and the base passes through screw insertion fixed orifices and screw internal fixation and connects.

5. A potentiometric titrator with high sensitivity according to claim 4, wherein: the lower end of the screw rod, which is positioned on the telescopic cylinder, is provided with a fixed bearing, the screw rod is inserted into the fixed bearing and is rotationally connected with the fixed bearing, and the fixed bearing limits the position of the screw rod.

6. A potentiometric titrator with high sensitivity according to claim 5, wherein: the both ends of screw thread seat are equipped with limit slide, and telescopic cylinder corresponds limit slide and is equipped with the spout of vertical setting, and limit slide reciprocates in the spout.

7. A potentiometric titrator with high sensitivity according to claim 6, wherein: the speed reducing mechanism comprises a driving gear arranged at the lower end of the motor, a driven gear arranged at the lower end of the screw rod and a speed reducing gear in meshed transmission connection with the driving gear and the driven gear respectively.

8. A high sensitivity potentiometric titrator according to claim 1, wherein: the titration cup is provided with a magnetic stirrer, and an electromagnetic driver is arranged in the titration table.