CN214895094U

CN214895094U - High-efficiency automatic potential titrator

Info

Publication number: CN214895094U
Application number: CN202121730585.4U
Authority: CN
Inventors: 王洪
Original assignee: Chengdu Cypco Biotechnology Co ltd
Current assignee: Chengdu Cypco Biotechnology Co ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2021-11-26
Anticipated expiration: 2031-07-28

Abstract

The utility model discloses a high efficiency is from electromotive potential titrator, it has pivot (4) to titrate platform (1) top rotational mounting, the top of pivot (4) extends in the top of titrating platform (1), and extend and serve and set firmly carousel (5), accommodation hole (6) have been seted up at the top of carousel (5), accommodation hole (6) cooperate with the outline of titrating the container, the bottom of pivot (4) extends in the below of titrating platform (1), the below of titrating platform (1) is provided with drive unit, drive unit's output shaft is connected with the bottom of pivot (4), electric cylinder (7) have set firmly on the basal surface of titrating platform (1), the telescopic link of electric cylinder (7) runs through and titrates platform (1) setting, and extend and serve and set firmly lifter plate (8), silica gel layer (10) have set firmly on the basal surface of gland (9). The utility model has the advantages that: compact structure, reagent or solution splash prevention, shortened mixing time and simple operation.

Description

High-efficiency automatic potential titrator

Technical Field

The utility model relates to a potentiometric titrator's technical field, especially a high efficiency automatic potentiometric titrator.

Background

The potentiometric titrator is a device for determining a titration end point by measuring potential change in a titration process by using a potentiometric titration method, and is mainly used for chemical analysis of various components in various industries such as universities and colleges, scientific research institutions, petrochemical engineering, pharmacy, drug testing, metallurgy and the like. The operating principle of the potentiometric titrator is that a titration container filled with a solution is placed on a table top of a titration table, the titration container is ensured to be positioned under a titration tube, then the potentiometric titrator is opened, the potentiometric titrator dropwise adds the reagent into the titration container through the titration tube, and after dropwise adding, the dropwise added reagent and the solution in the titration container are stirred and mixed through a stirring device on the potentiometric titrator.

Chinese patent publication No. CN205562491U discloses an automatic potentiometric titrator for detecting traditional Chinese medicinal materials, which includes a titration table 1, wherein a titration support 5 is disposed on the titration table 1, and the titration support 5 includes an upright 51, a rotary support 52, and a rotary support 53; the rotating support 52 is installed above the upright post 51, a lifting device is arranged between the upright post 51 and the rotating support 52, and the rotating bracket 53 is rotatably connected with the rotating support 52; the titration electrode group 2 and the burette 3 are both fixed at one end of the rotary support 53, and the titration electrode group and the burette are conveniently placed into a titration container through the rotary and lifting rotary support in the titration process. Although the stirring device of the potentiometric titrator can stir the reagent and the solution in the titration container, the blade of the stirring device can only stir in a single direction all the time, so that the reagent and the solution can be uniformly mixed only by consuming a long time, and the experimental time is prolonged. In addition, in the titration process, there is the difference in height between buret and the titration container, causes the reagent that drips into in the titration container to splash to the outside of titration container to the volume of reagent or solution has been reduced, and then has influenced the experiment precision. Therefore, there is a need for a highly efficient automatic potentiometric titrator that can prevent reagents or solutions from splashing and shorten the mixing time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a compact structure, prevent that reagent or solution from splashing, shortening mixing time, easy operation's high efficiency automatic potentiometric titrator.

The purpose of the utility model is realized through the following technical scheme: the utility model provides a high efficiency is from electromotive potential titrator, it includes titrates platform and host computer, be provided with detecting system on the host computer, titrate bench rotary mounting and have the pivot, the top of pivot extends in the top of titrating the platform, and extends to serve and set firmly the carousel, and the accommodation hole has been seted up at the top of carousel, and the accommodation hole cooperatees with the outline of titrating the container, and the bottom of pivot extends in the below of titrating the platform, and the below of titrating the platform is provided with drive unit, and drive unit's output shaft is connected with the bottom of pivot, titrate and set firmly the electric jar on the basal surface of platform, the telescopic link of electric jar runs through the setting of titrating the platform, and extends to serve and set firmly the lifter plate, and the below of lifter plate is provided with the gland, has set firmly the silica gel layer on the basal surface of gland, is provided with agitating unit and titrates the electrode group on the gland, titrates electrode group and detecting system through the wire connection, has set firmly the buret on the gland, the burette penetrates through the gland and the silica gel layer in sequence, and the top port of the burette is connected with the liquid discharge port of the host machine through a hose.

The titration electrode group comprises an indicating electrode and a reference electrode, the indicating electrode and the reference electrode sequentially penetrate through the gland and the silica gel layer, and the indicating electrode and the reference electrode are connected with the detection system.

Agitating unit includes agitator motor and blade, agitator motor sets firmly on the top surface of lifter plate, and agitator motor's output shaft runs through gland and silica gel layer setting in order, and extends to serve and be connected with the (mixing) shaft, installs the blade on the (mixing) shaft.

And a plurality of connecting rods are fixedly arranged between the lifting plate and the gland.

The driving unit comprises a workbench, a servo motor and a speed reducer, wherein the servo motor and the speed reducer are fixedly arranged on the workbench, an output shaft of the servo motor is connected with an input shaft of the speed reducer through a coupler, and an output shaft of the speed reducer is connected with the bottom end of the rotating shaft through a coupler.

The utility model has the advantages of it is following: compact structure, reagent or solution splash prevention, shortened mixing time and simple operation.

Drawings

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

FIG. 2 is a view taken along line A of FIG. 1;

FIG. 3 is a schematic view of the present invention;

in the figure, 1-titration table, 2-main machine, 3-detection system, 4-rotating shaft, 5-rotating disc, 6-accommodating hole, 7-electric cylinder, 8-lifting plate, 9-gland, 10-silica gel layer, 11-burette, 12-indicating electrode, 13-reference electrode, 14-stirring motor, 15-blade, 16-stirring shaft, 18-connecting rod, 19-workbench, 20-servo motor, 21-reducer and 22-titration container.

Detailed Description

The invention will be further described with reference to the accompanying drawings, without limiting the scope of the invention to the following:

as shown in fig. 1-2, a high efficiency automatic potential titrator, it includes titrating platform 1 and host computer 2, be provided with detecting system 3 on the host computer 2, it has pivot 4 to titrate the rotatory installation of platform 1, the top of pivot 4 extends in titrating the top of platform 1, and extend to serve and set firmly carousel 5, the accommodation hole 6 has been seted up at the top of carousel 5, the accommodation hole 6 cooperatees with the outline of titrating the container, the bottom of pivot 4 extends in titrating the below of platform 1, titrate the below of platform 1 and be provided with the drive unit, the output shaft of drive unit is connected with the bottom of pivot 4, titrate and set firmly electric cylinder 7 on the basal surface of platform 1, the telescopic link of electric cylinder 7 runs through titrating the platform 1 setting, and extend to serve and set firmly lifter plate 8, the below of lifter plate 8 is provided with gland 9, many connecting rods 18 have set firmly between lifter plate 8 and gland 9, the bottom surface of the gland 9 is fixedly provided with a silica gel layer 10, the gland 9 is provided with a stirring device and a titration electrode group, the titration electrode group is connected with the detection system 3 through a conducting wire, the gland 9 is fixedly provided with a burette 11, the burette 11 sequentially penetrates through the gland 9 and the silica gel layer 10, and the top port of the burette 11 is connected with the liquid discharge port of the host machine 2 through a hose. The driving unit comprises a workbench 19, a servo motor 20 and a speed reducer 21, wherein the servo motor 20 and the speed reducer 21 are fixedly arranged on the workbench 19, an output shaft of the servo motor 20 is connected with an input shaft of the speed reducer 21 through a coupler, and an output shaft of the speed reducer 21 is connected with the bottom end of the rotating shaft 4 through a coupler.

The titration electrode group comprises an indicating electrode 12 and a reference electrode 13, the indicating electrode 12 and the reference electrode 13 sequentially penetrate through the gland 9 and the silica gel layer 10, and the indicating electrode 12 and the reference electrode 13 are connected with the detection system 3. Agitating unit includes agitator motor 14 and blade 15, agitator motor 14 sets firmly on the top surface of lifter plate 8, and agitator motor 14's output shaft runs through gland 9 and silica gel layer 10 setting in order, and extends to serve and be connected with (mixing) shaft 16, installs blade 15 on the (mixing) shaft 16.

The working process of the utility model is as follows:

s1, an operator places the titration container 22 containing the solution into the accommodating hole 6, and the indicating electrode 12, the reference electrode 13, the blade 15 and the burette 11 are just above the titration container 22;

s2, an operator controls the telescopic rod of the electric cylinder 7 to move downwards, the telescopic rod drives the lifting plate 8 to move downwards, the lifting plate 8 drives the indicating electrode 12, the reference electrode 13, the blade 15 and the burette 11 to move downwards synchronously, after the indicating electrode 12, the reference electrode 13, the blade 15 and the burette 11 extend into the titration container 22, when the silica gel layer 10 is pressed on the top surface of the titration container 22 as shown in figure 3, the operator closes the electric cylinder 7;

s3, an operator turns on a switch on the main machine 2, the main machine 2 pumps out a reagent, the reagent finally drops into the solution in the titration container 22 through the hose, the burette 11 and the tail end port of the burette 11 in sequence, and after titration is carried out for a period of time, the main machine 2 is closed, so that titration operation is realized; in the titration process, because the silica gel layer 10 covers the top port of the titration container 22, the reagent or the solution is effectively prevented from splashing to the outside of the titration container 22, the further reduction of the amount of the reagent or the solution is prevented, and the experiment precision is further improved. In addition, the silica gel layer 10 is an organic material, and the reagent or the solution does not adhere to or soak in the bottom surface thereof after being splashed thereon, but directly falls into the titration vessel 22 under gravity.

S4, an operator turns on the stirring motor 14, the stirring motor 14 drives the stirring shaft 16 to rotate clockwise, the stirring shaft 16 drives the blades 15 to rotate, and the blades 15 stir and mix the viscous reagent and the solution; meanwhile, an operator turns on the servo motor 20, the torque of the servo motor 20 is transmitted to the rotating shaft 4 after being reduced by the speed reducer 21, the rotating shaft 4 drives the rotating disc 5 to rotate anticlockwise, the rotating disc 5 drives the titration container 22 to synchronously rotate, and after the mixture is stirred for a period of time, the reagent and the solution can be mixed. Because blade 15 clockwise stirs mixed liquid, and the mixed liquid is anticlockwise centrifugal motion simultaneously, very big increase the area of contact of reagent and solution, and then shortened the mixing time of reagent and solution, very big improvement reagent and solution misce bene's efficiency.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a high efficiency is from potentiometric titrator, it is including titrating platform (1) and host computer (2), be provided with detecting system (3) on host computer (2), its characterized in that: titrate platform (1) and go up the rotational mounting and have pivot (4), the top of pivot (4) extends in the top of titrating platform (1), and extend and serve and set firmly carousel (5), accommodation hole (6) have been seted up at the top of carousel (5), accommodation hole (6) cooperate with the outline of titrating the container, the bottom of pivot (4) extends in the below of titrating platform (1), the below of titrating platform (1) is provided with drive unit, drive unit's output shaft is connected with the bottom of pivot (4), electric cylinder (7) have set firmly on the basal surface of titrating platform (1), the telescopic link of electric cylinder (7) runs through and titrates platform (1) setting, and has set firmly lifter plate (8) on the extension end, the below of lifter plate (8) is provided with gland (9), silica gel layer (10) have set firmly on the basal surface of gland (9), be provided with agitating unit and titrate the electrode group on gland (9), the titration electrode group is connected with the detection system (3) through a lead, a burette (11) is fixedly arranged on the gland (9), the burette (11) sequentially penetrates through the gland (9) and the silica gel layer (10) to be arranged, and the top end opening of the burette (11) is connected with the liquid discharge opening of the host (2) through a hose.

2. The high efficiency automatic potentiometric titrator of claim 1, wherein: the titration electrode group comprises an indicating electrode (12) and a reference electrode (13), the indicating electrode (12) and the reference electrode (13) sequentially penetrate through a gland (9) and a silica gel layer (10) and are arranged, and the indicating electrode (12) and the reference electrode (13) are connected with the detection system (3).

3. The high efficiency automatic potentiometric titrator of claim 1, wherein: agitating unit includes agitator motor (14) and blade (15), agitator motor (14) set firmly on the top surface of lifter plate (8), and the output shaft of agitator motor (14) runs through gland (9) and silica gel layer (10) in order and sets up, and extends to serve and be connected with (mixing) shaft (16), installs blade (15) on (mixing) shaft (16).

4. The high efficiency automatic potentiometric titrator of claim 1, wherein: a plurality of connecting rods (18) are fixedly arranged between the lifting plate (8) and the gland (9).

5. The high efficiency automatic potentiometric titrator of claim 1, wherein: the driving unit comprises a workbench (19), a servo motor (20) and a speed reducer (21) which are fixedly arranged on the workbench (19), an output shaft of the servo motor (20) is connected with an input shaft of the speed reducer (21) through a coupler, and an output shaft of the speed reducer (21) is connected with the bottom end of the rotating shaft (4) through a coupler.