CN214895093U

CN214895093U - Potentiometric titrator with burette monitoring device

Info

Publication number: CN214895093U
Application number: CN202121729981.5U
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 take buret monitoring device's potentiometric titrator, electric jar (4) have set firmly on the basal surface of titration platform (1), be provided with agitating unit and titration electrode group on lifter plate (5), still be equipped with buret rocking device on lifter plate (5), buret rocking device is including shaking movable plate (6), buret (7), set up the power pack on shaking movable plate (6), set up first logical groove (8) on lifter plate (5), the one end of shaking plate (6) articulates on hinge seat (10), the other end sets firmly on the top of founding spring (9), buret (7) rotary mounting is in bearing frame (12), the lower tip of buret (7) runs through first logical groove (8) in order, the second leads to groove (11) and extends in lifter plate (5) below. The utility model has the advantages that: compact structure, can titrate viscous reagent fast, improve and titrate efficiency, easy operation.

Description

Potentiometric titrator with burette monitoring device

Technical Field

The utility model relates to a potentiometric titrator's technical field, especially a potentiometric titrator of taking buret monitoring device.

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.

However, although the conventional potentiometric titrators can complete the titration of the reagents, they have found that: when the reagent is a viscous liquid, the viscous reagent flows slowly in the burette due to poor fluidity of the viscous reagent, and then the viscous reagent can flow into the titration container after waiting for a long time, which undoubtedly needs to wait for a long time to complete titration, thereby increasing the titration time. Therefore, a potentiometric titrator capable of rapidly titrating a viscous reagent and improving the titration efficiency is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a compact structure, can titrate viscous reagent fast, improve titration efficiency, easy operation's potentiometric titrator of taking buret monitoring device.

The purpose of the utility model is realized through the following technical scheme: a potentiometric titrator with a burette monitoring device comprises a titration table and a host, wherein a detection system is arranged on the host, an electric cylinder is fixedly arranged on the bottom surface of the titration table, a telescopic rod of the electric cylinder penetrates through the titration table, a lifting plate is fixedly arranged on an extending end of the electric cylinder, a stirring device and a titration electrode group are arranged on the lifting plate, the titration electrode group is connected with the detection system through a lead, a burette shaking device is further arranged on the lifting plate and comprises a shaking plate, a burette, a power unit arranged on the shaking plate and a first through groove formed in the lifting plate, standing springs and hinge bases are respectively and fixedly arranged on the left side and the right side of the first through groove on the top surface of the lifting plate, one end of the shaking plate is hinged on the hinge base, the other end of the shaking plate is fixedly arranged on the top end of the standing spring, a second through groove arranged right above the first through groove is formed in the shaking plate, the top that the second led to the groove has set firmly the bearing frame, buret rotary mounting is in the bearing frame, and the lower tip of buret runs through first logical groove, second in order and leads to the groove and extend in the lifter plate below, and the top of buret is provided with rotary joint, and rotary joint is connected through the leakage fluid dram of hose and host computer, is provided with transmission between buret and the power pack.

The titration electrode group comprises an indicating electrode and a reference electrode, the indicating electrode and the reference electrode are arranged by penetrating through the lifting plate, 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 the lifter plate setting, and extends to serve and be connected with the (mixing) shaft, installs the blade on the (mixing) shaft.

And a monitoring device is arranged on the bottom surface of the lifting plate and positioned on the right side of the burette, and the monitoring device is electrically connected with the display.

The monitoring device is a high power amplifier.

The power unit comprises a servo motor and a speed reducer which are fixedly arranged on the top surface of the shaking plate, an output shaft of the servo motor is connected with an input shaft of the speed reducer through a coupler, the transmission device comprises a driving gear arranged on an output shaft of the speed reducer and a driven gear fixedly arranged on the outer wall of the burette, and the driven gear is meshed with the driving gear.

And a support plate is fixedly arranged at the bottom of the swinging plate and is hinged on the hinge base.

The utility model has the advantages of it is following: the utility model discloses make the viscidity reagent in the buret both do centrifugal motion, do again and rock from top to bottom to very big quickening viscidity reagent's flow, and then accomplish the titration of viscidity reagent fast, compare traditional potentiometric titrator, very big improvement titration efficiency. The utility model discloses a picture in the buret is shot in real time to the high power magnifying glass, makes things convenient for whether still there is viscidity reagent in the accurate judgement buret of operating personnel.

Drawings

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

FIG. 2 is an enlarged view of a portion I of FIG. 1;

FIG. 3 is a front view of FIG. 1;

FIG. 4 is an enlarged view of a portion II of FIG. 3;

in the figure, 1-a titration table, 2-a main machine, 3-a detection system, 4-an electric cylinder, 5-a lifting plate, 6-a shaking plate, 7-a burette, 8-a first through groove, 9-a vertical spring, 10-a hinge seat, 11-a second through groove, 12-a bearing seat, 13-a rotary joint, 14-a hose, 15-an indicating electrode, 16-a reference electrode, 17-a stirring motor, 18-a blade, 19-a stirring shaft, 20-a monitoring device, 21-a servo motor, 22-a reducer, 23-a driving gear, 24-a driven gear, 25-a titration container and 26-a display.

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 to 4, a potentiometric titrator with a burette monitoring device comprises a titration table 1 and a host 2, wherein a detection system 3 is arranged on the host 2, an electric cylinder 4 is fixedly arranged on the bottom surface of the titration table 1, an expansion rod of the electric cylinder 4 penetrates through the titration table 1, a lifting plate 5 is fixedly arranged on an extension end of the expansion rod, a stirring device and a titration electrode group are arranged on the lifting plate 5, the titration electrode group is connected with the detection system 3 through a lead, a burette shaking device is further arranged on the lifting plate 5, the burette shaking device comprises a shaking plate 6, a burette 7, a power unit arranged on the shaking plate 6 and a first through groove 8 arranged on the lifting plate 5, a standing spring 9 and a hinge base 10 are respectively arranged on the top surface of the lifting plate 5 and on the left side and the right side of the first through groove 8, one end of the shaking plate 6 is hinged on the hinge base 10, the bottom of the shaking plate 6 is fixedly provided with a support plate, the support plate is hinged on a hinge base 10, the other end of the shaking plate 6 is fixedly arranged on the top end of a vertical spring 9, the shaking plate 6 is provided with a second through groove 11 positioned right above the first through groove 8, the top of the second through groove 11 is fixedly provided with a bearing seat 12, the burette 7 is rotatably arranged in the bearing seat 12, the lower end part of the burette 7 sequentially penetrates through the first through groove 8 and the second through groove 11 and extends below the lifting plate 5, the top of the burette 7 is provided with a rotary joint 13, the rotary joint 13 is connected with a liquid discharge port of the host machine 2 through a hose 14, a transmission device is arranged between the burette 7 and a power unit, the power unit comprises a servo motor 21 and a speed reducer 22 fixedly arranged on the top surface of the shaking plate 6, an output shaft of the servo motor 21 is connected with an input shaft of the speed reducer 22 through a coupler, and the transmission device comprises a driving gear 23 arranged on an output shaft of the speed reducer 22, And the driven gear 24 is fixedly arranged on the outer wall of the burette 7, and the driven gear 24 is meshed with the driving gear 23.

The titration electrode group comprises an indicating electrode 15 and a reference electrode 16, the indicating electrode 15 and the reference electrode 16 are arranged through the lifting plate 5, and the indicating electrode 15 and the reference electrode 16 are connected with the detection system 3. The stirring device comprises a stirring motor 17 and blades 18, wherein the stirring motor 17 is fixedly arranged on the top surface of the lifting plate 5, an output shaft of the stirring motor 17 penetrates through the lifting plate 5, the extending end of the output shaft is connected with a stirring shaft 19, and the blades 18 are arranged on the stirring shaft 19. A monitoring device 20 is disposed on the bottom surface of the lifting plate 5 and on the right side of the burette 7, and the monitoring device 20 is electrically connected to a display 26, in this embodiment, the monitoring device is a high magnification instrument.

The working process of the utility model is as follows:

s1, an operator places the titration container 25 filled with the solution on the titration table 1 and ensures that the titration container 25 is positioned right below the indicating electrode 15, the reference electrode 16, the blade 18 and the burette 7;

s2, an operator controls a telescopic rod of the electric cylinder 4 to move downwards, the telescopic rod drives a lifting plate 5 to move downwards, the lifting plate 5 drives an indicating electrode 15, a reference electrode 16, a blade 18 and a burette 7 to move downwards synchronously, and when the indicating electrode 15, the reference electrode 16, the blade 18 and the burette 7 extend into a solution, the operator closes the electric cylinder 4;

s3, the operator opens the switch on the main machine 2, the main machine 2 pumps out the viscous reagent, the viscous reagent finally drops into the solution in the titration container 25 through the rotary joint 13, the burette 7 and the end port of the burette 7 in sequence, then the operator turns on the servo motor 21, the torque of the servo motor 21 is transmitted to the driving gear 23 after being reduced by the reducer 22, the driving gear 23 drives the driven gear 24 to rotate, the driven gear 24 drives the burette 7 to rotate around the axis of the bearing seat 12, thereby enabling the viscous reagent flowing on the inner wall of the burette 7 to do centrifugal motion, simultaneously, an operator presses the shaking plate 6 downwards by hands, the shaking plate 6 winds the hinge seat 10 and presses the vertical spring 9 downwards, after pressing, and then the shaking plate 6 is released, the shaking plate 6 shakes up and down around the hinge base 10 under the elastic restoring force of the vertical spring 9, thereby causing the burette 7 to rock up and down and further using the viscous reagent flowing on the inner wall of the burette 7 to rock up and down. The viscous reagent in the burette 7 does centrifugal motion and does up-and-down shaking, so that the flow of the viscous reagent is greatly accelerated, the titration of the viscous reagent is quickly completed, and the titration efficiency is greatly improved compared with the conventional potentiometric titrator;

s4, in the titration process of the step S3, the high power magnifier shoots the image of the burette 7 in real time and transmits the image to the display 26, when the operator observes that no viscous reagent exists in the burette 7 from the display 26, the operator turns off the servo motor 21 and turns on the stirring motor 17, the stirring motor 17 drives the stirring shaft 19 to rotate, the stirring shaft 19 drives the blades 18 to rotate, and the blades 18 stir and mix the viscous reagent and the solution.

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 take buret monitoring device's potentiometric titrator, it is including titrating platform (1) and host computer (2), be provided with detecting system (3), its characterized in that on host computer (2): the titration apparatus comprises a titration table (1), an electric cylinder (4) is fixedly arranged on the bottom surface of the titration table (1), a telescopic rod of the electric cylinder (4) penetrates through the titration table (1), a lifting plate (5) is fixedly arranged on an extending end of the electric cylinder, a stirring device and a titration electrode group are arranged on the lifting plate (5), the titration electrode group is connected with a detection system (3) through a lead, a burette shaking device is further arranged on the lifting plate (5), the burette shaking device comprises a shaking plate (6), a burette (7), a power unit arranged on the shaking plate (6) and a first through groove (8) arranged on the lifting plate (5), vertical springs (9) and hinge bases (10) are respectively and fixedly arranged on the top surface of the lifting plate (5) and on the left side and the right side of the first through groove (8), one end of the shaking plate (6) is hinged on the hinge base (10), the other end of the shaking plate is fixedly arranged on the top ends of the vertical springs (9), the second that is located directly over first logical groove (8) is seted up on shaking movable plate (6) leads to groove (11), and the top that the second led to groove (11) has set firmly bearing frame (12), buret (7) rotation mounting is in bearing frame (12), and the lower tip of buret (7) runs through first logical groove (8) in order, second lead to groove (11) and extend in lifter plate (5) below, and the top of buret (7) is provided with rotary joint (13), and rotary joint (13) are connected through the leakage fluid dram of hose (14) with host computer (2), are provided with transmission between buret (7) and the power pack.

2. The potentiometric titrator with a burette monitoring device according to claim 1, wherein: the titration electrode group comprises an indicating electrode (15) and a reference electrode (16), the indicating electrode (15) and the reference electrode (16) are arranged by penetrating through the lifting plate (5), and the indicating electrode (15) and the reference electrode (16) are connected with the detection system (3).

3. The potentiometric titrator with a burette monitoring device according to claim 1, wherein: agitating unit includes agitator motor (17) and blade (18), agitator motor (17) set firmly on the top surface of lifter plate (5), and the output shaft of agitator motor (17) runs through lifter plate (5) and sets up, and extends to serve and be connected with (mixing) shaft (19), installs blade (18) on (mixing) shaft (19).

4. The potentiometric titrator with a burette monitoring device according to claim 1, wherein: and a monitoring device (20) is arranged on the bottom surface of the lifting plate (5) and positioned on the right side of the burette (7), and the monitoring device (20) is electrically connected with the display (26).

5. The potentiometric titrator with a burette monitoring device according to claim 4, wherein: the monitoring device is a high power amplifier.

6. The potentiometric titrator with a burette monitoring device according to claim 1, wherein: the power unit comprises a servo motor (21) and a speed reducer (22) which are fixedly arranged on the top surface of the shaking plate (6), an output shaft of the servo motor (21) is connected with an input shaft of the speed reducer (22) through a coupler, the transmission device comprises a driving gear (23) arranged on the output shaft of the speed reducer (22) and a driven gear (24) fixedly arranged on the outer wall of the burette (7), and the driven gear (24) is meshed with the driving gear (23).

7. The potentiometric titrator with a burette monitoring device according to claim 1, wherein: and a support plate is fixedly arranged at the bottom of the shaking plate (6) and is hinged on the hinge base (10).