CN213843088U

CN213843088U - PH meter calibration device

Info

Publication number: CN213843088U
Application number: CN202022800524.2U
Authority: CN
Inventors: 王学习; 于志林
Original assignee: Shandong Shengrui Pharmaceutical Technology Co ltd
Current assignee: Shandong Shengrui Pharmaceutical Technology Co ltd
Priority date: 2020-11-28
Filing date: 2020-11-28
Publication date: 2021-07-30
Anticipated expiration: 2030-11-28

Abstract

The utility model relates to a measurement calibration equipment technical field just discloses a pH meter calibration equipment, including the pH display meter, pH display meter top one side edge through connection has first wire, fixed location solution device, slope solution device, the solution device that awaits measuring have been placed to mount below level, the fixed cover of buckle inner wall has connect the electrode. This kind of pH meter calibration equipment, setting through the same electrode and second wire, make and reduce personnel's operating error when this pH meter calibration equipment, the thread groove has been seted up to bracing piece one end outer wall, the thread groove is inside to be fixed to overlap to have connect threaded sleeve, avoided needing to wash the electrode many times at this in-process, wipe futilely, and there is the not thorough problem of washing, quantity through the electrode is three, electrode top through connection has the second wire, run through respectively in three electrode top, the setting of same electrode and second wire, the operating error because of personnel's error causes has been solved, the unsafe problem of data.

Description

PH meter calibration device

Technical Field

The utility model relates to a measurement calibration equipment technical field specifically is a pH meter calibration equipment.

Background

The electrodes of the pH meter need to be calibrated regularly to ensure the accuracy of the measurement result, the pH meter needs to be corrected by using a solution with a known value before use and in the process of long-time use, the electrodes are continuously stirred by holding the pH glass electrode for many times, the stirring aims to generate flow velocity, so that the ion activity of the calibration solution is improved, and secondary table-recorded measurement values are observed and corrected.

In the calibration process of the pH meter, positioning and slope solution needs to be repeatedly measured, so that the reading of the solution is consistent with given data, the electrode needs to be cleaned and dried for many times in the process, the process is complicated, the cleaning is not thorough, the electrode is damaged in the cleaning process, the result error is large, and the requirements of the current industrial production cannot be met, so that the calibration device of the pH meter is provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a pH meter calibration equipment possesses and reduces preparation work before experimental, improves experimental efficiency, reduces personnel's operating error, improves advantages such as the accuracy of result, has solved the problem of proposing among the background art.

(II) technical scheme

For realize above-mentioned preparation work before reducing the experiment, improve experimental efficiency, reduce personnel's operating error, improve the purpose of the accuracy of result, the utility model provides a following technical scheme: the utility model provides a pH meter calibration equipment, includes the pH display meter, pH display meter top one side edge through connection has first wire, the equal fixed mounting in pH display meter left and right sides has the bracing piece, the mount has been cup jointed in the activity of bracing piece middle part, the thread groove has been seted up to bracing piece one end outer wall, the fixed cover in thread groove inside has been cup jointed threaded sleeve, the fixed location solution device, slope solution device, the solution device that awaits measuring of having placed of mount below level, the constant head tank has been seted up to mount one side edge, the inside demountable installation of constant head tank has the fixed block, fixed block outside fixed mounting has the buckle, the fixed cover of buckle inner wall has been cup jointed the electrode, electrode top through connection has the second wire.

Preferably, the thread groove is formed in the outer wall of the upper end of each support rod, the length value of each support rod is twice that of the thread groove, the number of the thread sleeves is two, the two thread sleeves are respectively located at the two ends of the top of the fixing frame, and the size of each thread groove is matched with the size of the thread on the inner wall of each thread sleeve.

Preferably, the positioning solution device, the slope solution device and the solution device to be detected are the same in size, are horizontally arranged below the fixing frame at equal intervals, and are respectively provided with the same amount of positioning solution, slope solution and sample solution to be detected in the inner cavity.

Preferably, the positioning grooves, the fixing blocks and the electrodes are all three and are respectively arranged at the edge of one side of the top of the fixing frame at equal intervals, and the electrodes are respectively vertically arranged in the inner cavities of the positioning solution device, the slope solution device and the solution device to be detected at equal intervals.

Preferably, the shape of buckle is half-circular arc, just the material of buckle is the plastics material, the quantity of buckle is three, is located three respectively the fixed block outside.

Preferably, the number of the second wires is three, the second wires penetrate through the three electrode tops respectively, and the size of the second wires is matched with that of the first wires.

(III) advantageous effects

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this kind of pH meter calibration equipment, setting through the same electrode and second wire, make and reduce personnel's operating error when to this pH meter calibration equipment, improve the accuracy of result, the thread groove has been seted up to bracing piece one end outer wall, the thread groove is inside to be fixed to overlap has connect threaded sleeve, make the contact location solution that three electrode can be the same area, slope solution, in the sample solution that awaits measuring, avoided needing to wash the electrode many times at this in-process, wipe futilely, the process is loaded down with trivial details, and there is the not thorough problem of washing.

2. This kind of pH meter calibration equipment is three through the quantity of electrode, and equidistant perpendicular placement is in location solution device, slope solution device, solution device inner chamber that awaits measuring respectively, and electrode top through connection has the second wire, and the quantity of second wire is three, runs through respectively in three electrode top, and the operating error that causes because of personnel's error, the unsafe problem of data has been solved to the setting of the same electrode and second wire.

Drawings

FIG. 1 is a schematic view of the whole structure of the present invention;

FIG. 2 is a schematic side view of the structure of the present invention;

fig. 3 is a schematic enlarged view of a part a of the structure diagram of the present invention 2.

In the figure: 1. a pH display meter; 2. a first conductive line; 3. a support bar; 4. a fixed mount; 5. a thread groove; 6. a threaded sleeve; 7. positioning a solution device; 8. a slope solution device; 9. a solution device to be tested; 10. positioning a groove; 11. an electrode; 12. a fixed block; 13. buckling; 14. a second conductive line.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Examples

Referring to fig. 1-3, a pH meter calibration device comprises a pH display meter 1, a first wire 2 is connected to an edge of one side of the top of the pH display meter 1 in a penetrating manner, support rods 3 are fixedly mounted on the left and right sides of the pH display meter 1, a fixing frame 4 is movably sleeved in the middle of each support rod 3, a thread groove 5 is formed in the outer wall of one end of each support rod 3, a thread sleeve 6 is fixedly sleeved inside each thread groove 5, thread grooves 5 are formed in the outer walls of the upper ends of the two support rods 3, the length of each support rod 3 is twice of that of each thread groove 5, the two thread sleeves 6 are respectively positioned at two ends of the top of the fixing frame 4, the size of each thread groove 5 is matched with the size of a thread on the inner wall of each thread sleeve 6, and the distance between the fixing frame 4 and the ground can be vertically adjusted by adjusting the positions of the thread sleeves 6 and the thread grooves 5, so that three electrodes 11 can be in contact with a positioning solution with equal area, Slope solution, in the sample solution to be tested, the positioning solution device 7 is horizontally and fixedly placed below the fixing frame 4, the slope solution device 8, the solution device 9 to be tested, the positioning solution device 7, the slope solution device 8 and the solution device 9 to be tested are the same in size, the equal levels are arranged below the fixing frame 4 at equal intervals, and equal amounts of positioning solution, slope solution and sample solution to be tested are respectively placed in the inner cavities, so that the equal amounts of positioning solution, slope solution and sample solution to be tested are periodically replaced in a correction experiment, the electrode 11 is prevented from being cleaned for many times in the process, the wiping is carried out, the process is complicated, the cleaning is incomplete, the electrode 11 is damaged in the wiping process, the result error is large, the preparation work before the experiment is reduced, the experiment efficiency is improved, the positioning groove 10 is formed in the edge of one side of the fixing frame 4, and the fixing block 12 is detachably mounted inside the positioning groove 10, the buckles 13 are fixedly arranged on the outer sides of the fixed blocks 12, the buckles 13 are in the shape of a semicircular arc, the buckles 13 are made of plastic materials, the number of the buckles 13 is three, the buckles are respectively positioned on the outer sides of the three fixed blocks 12, the electrodes 11 are fixedly sleeved on the inner walls of the buckles 13, the number of the positioning grooves 10 and the number of the fixed blocks 12 are all three, the three buckles are respectively arranged on the edge of one side of the top of the fixing frame 4 at equal intervals, the number of the electrodes 11 is three, the three buckles are respectively vertically arranged in the inner cavities of the positioning solution device 7, the slope solution device 8 and the solution device 9 to be detected at equal intervals, the top of the electrode 11 is connected with three second wires 14, the number of the second wires 14 is three, the second wires are respectively penetrated through the top ends of the three electrodes 11, the size of the second wires 14 is matched with the size of the first wires 2, through the arrangement of the same electrode 11 and the second lead 14, the operation error of a person is reduced, and the accuracy of the result is improved.

The working principle is as follows: firstly, put into equivalent positioning solution in the solution device 9 that will fix a position solution device 7, slope solution device 8, the solution device 9 that awaits measuring, slope solution, the sample solution that awaits measuring, then, buckle 13 inner wall is fixed to be cup jointed three the same size's electrode 11 and second wire 14, through the setting of the same electrode 11 and second wire 14, make and reduce personnel's operating error, improve the accuracy of result, be connected first wire 2 with three second wire 14 respectively, measure the pH value in the three solution, make its reading unanimous with given data, finally, through regularly changing equivalent positioning solution, slope solution, the sample solution that awaits measuring in the correction experiment can, the preparation work before having reduced the experiment, improve experimental efficiency.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A pH meter calibration device comprises a pH display meter (1), and is characterized in that: a first lead (2) is connected at the edge of one side of the top of the pH indicator (1) in a penetrating way, the left side and the right side of the pH indicator (1) are both fixedly provided with a support rod (3), a fixing frame (4) is movably sleeved at the middle part of the supporting rod (3), a thread groove (5) is arranged on the outer wall of one end of the supporting rod (3), a threaded sleeve (6) is fixedly sleeved in the threaded groove (5), a positioning solution device (7), a slope solution device (8) and a solution device to be tested (9) are horizontally and fixedly arranged below the fixing frame (4), a positioning groove (10) is arranged at the edge of one side of the fixing frame (4), a fixing block (12) is detachably arranged in the positioning groove (10), fixed block (12) outside fixed mounting has buckle (13), the fixed cover of buckle (13) inner wall has connect electrode (11), electrode (11) top through connection has second wire (14).

2. The pH meter calibration device according to claim 1, wherein: two bracing piece (3) upper end outer wall has all been seted up thread groove (5), just the length value of bracing piece (3) does the twice of thread groove (5), the quantity of thread bush (6) is two, is located respectively mount (4) top both ends, just the size of thread groove (5) with thread bush (6) inner wall thread size looks adaptation.

3. The pH meter calibration device according to claim 1, wherein: the positioning solution device (7), the slope solution device (8) and the solution device to be detected (9) are same in size, are horizontally arranged below the fixing frame (4) at equal intervals, and are respectively provided with the same amount of positioning solution, slope solution and sample solution to be detected in the inner cavity.

4. The pH meter calibration device according to claim 1, wherein: the number of the positioning grooves (10) and the number of the fixing blocks (12) are all three, the fixing blocks are arranged at the edge of one side of the top of the fixing frame (4) at equal intervals, the number of the electrodes (11) is three, and the electrodes are vertically arranged in the inner cavity of the positioning solution device (7), the slope solution device (8) and the solution device to be detected (9) at equal intervals.

5. The pH meter calibration device according to claim 1, wherein: the shape of buckle (13) is half-circular arc, just the material of buckle (13) is the plastics material, the quantity of buckle (13) is three, is located threely respectively fixed block (12) outside.

6. The pH meter calibration device according to claim 1, wherein: the number of the second leads (14) is three, the second leads penetrate through the top ends of the three electrodes (11), and the size of each second lead (14) is matched with that of each first lead (2).