CN212568578U

CN212568578U - High-precision desk type pH meter

Info

Publication number: CN212568578U
Application number: CN202021531553.7U
Authority: CN
Inventors: 杭海波; 祁庆金
Original assignee: Nanjing Luojike Electronic Technology Co ltd
Current assignee: Nanjing Luojike Electronic Technology Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-02-19
Anticipated expiration: 2030-07-29

Abstract

The utility model discloses a desk-top PH meter of high accuracy, including the inferior valve main part, the internally mounted of inferior valve main part has main control board and liquid crystal support, and liquid crystal support mounting is directly over the main control board, liquid crystal support's upper end surface mounting has liquid crystal display, and the surface of epitheca main part is provided with shell face PET membrane, install the bracing piece in the epitheca main part, install the probe on the bracing piece and press from both sides the epitheca and the probe presss from both sides the inferior valve, the probe presss from both sides the epitheca and the probe presss from both sides the inferior valve between integrated into one piece structure, and the probe presss from both sides the epitheca and the probe presss from both sides the PET membrane with the probe presss from both sides inferior valve internally mounted, the probe presss from both sides. The utility model discloses a press from both sides the probe and put into the solution that awaits measuring, can measure pH value in the solution, the main control board is through the relevant data information of degree of depth calculation to in time carry out numerical value through liquid crystal display and show, possess the advantage that the convenient precision of measurement is high.

Description

High-precision desk type pH meter

Technical Field

The utility model relates to a PH meter technical field specifically is a desk-top PH meter of high accuracy.

Background

A PH meter refers to an instrument for measuring the pH value of a solution. The PH meter operates on the principle of a galvanic cell, the electromotive force between two electrodes of which is related, according to nernst's law, both to the properties of the electrodes themselves and to the concentration of hydrogen ions in the solution. There is a corresponding relationship between the electromotive force of the primary cell and the hydrogen ion concentration, and the negative logarithm of the hydrogen ion concentration is the PH value. The PH meter is a common analytical instrument and is widely applied to the fields of agriculture, environmental protection, industry and the like. Soil PH is one of the essential properties of soil that are important. Factors such as the temperature and ionic strength of the solution to be measured should be considered in the pH measurement process. The sewage treatment plant is generally installed in a submerged manner, for example, a pH meter of the sewage treatment plant is installed in an outlet overflow trough of a grit chamber, the pH value is representative, the water flow is stable, and no large impact is caused on the pH meter. Regular maintenance facilitates accurate measurement of the meter and extends the useful life of the meter. It should be noted that the dedicated cable between the sensor and the transmitter cannot be wetted or the high impedance low voltage signal of the electrodes will not be transmitted to the transmitter.

The current desktop PH meter is relatively complex to assemble, high in cost and relatively poor in measurement accuracy, so that a novel high-accuracy desktop PH meter is urgently needed to be developed in the market.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a desk-top PH meter of high accuracy to solve the comparatively loaded down with trivial details with high costs of present desk-top PH meter equipment that proposes in the above-mentioned background art, the relatively poor problem of measurement accuracy.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a desk-top PH meter of high accuracy, includes the inferior valve main part, the internally mounted of inferior valve main part has main control board and liquid crystal support, and the liquid crystal support mounting is directly over the main control board, the upper end surface mounting of liquid crystal support has liquid crystal display, and liquid crystal display passes through the mounting groove and fixes mutually with the epitheca main part, and the surface of epitheca main part is provided with shell face PET membrane, install the bracing piece in the epitheca main part, install the probe on the bracing piece and press from both sides the epitheca and the probe presss from both sides the inferior valve, the probe presss from both sides the epitheca and the probe presss from both sides the integrated into one piece structure between the inferior valve, and the probe presss from both sides epitheca and probe presss from both sides inferior valve internally mounted and have the probe to press from.

Preferably, rubber pads are mounted at four corners of the bottom of the lower shell main body.

Preferably, a weight is installed inside the lower case main body.

Preferably, the socket PET film is embedded in the rear end surface of the lower case main body.

Preferably, the lower case main body is fixed to the upper case main body by fitting with a fixing guide post.

Preferably, the shell surface PET film and the upper shell main body are fixed through a silica gel plug.

Compared with the prior art, the beneficial effects of the utility model are that:

install the bracing piece in the epitheca main part, it presss from both sides the epitheca and the probe presss from both sides the inferior valve to install the probe on the bracing piece, the probe presss from both sides the epitheca and the probe presss from both sides the inferior valve for integrated into one piece structure between the inferior valve with the probe, the probe presss from both sides the epitheca and the probe presss from both sides inferior valve internally mounted has probe clamp PET membrane, through pressing from both sides integrated into one piece between epitheca and the inferior valve with the probe, it installs fixedly in the casing to press from both sides the PET membrane intussuseption with the probe, possess the convenient advantage with low costs of equipment, through pressing from both sides the probe and put into the solution that awaits measuring, can measure PH value in the solution.

Drawings

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

fig. 2 is a schematic view of the exploded structure of the present invention.

In the figure: 1. a support bar; 2. a probe clip button; 3. the probe clip is arranged on the shell; 4. a probe clip lower shell; 5. a lower case main body; 6. a shell surface PET film; 7. clamping a PET film on the probe; 8. an upper case main body; 9. a main control board; 10. a balancing weight; 11. a spring; 12. a silica gel plug; 13. a liquid crystal display screen; 14. a liquid crystal support; 15. a socket PET film; 16. a rubber pad.

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.

Referring to fig. 1-2, the present invention provides an embodiment: the utility model provides a desk-top PH meter of high accuracy, including inferior valve main part 5, the internally mounted of inferior valve main part 5 has main control board 9 and liquid crystal support 14, liquid crystal support 14 is installed directly over main control board 9, liquid crystal support 14's upper end surface mounting has liquid crystal display 13, liquid crystal display 13 is fixed mutually with epitheca main part 8 through the mounting groove, the surface of epitheca main part 8 is provided with shell face PET membrane 6, install bracing piece 1 on the epitheca main part 8, it presss from both sides epitheca 3 and probe and presss from both sides inferior valve 4 to install the probe on bracing piece 1, the probe presss from both sides epitheca 3 and the probe presss from both sides inferior valve 4 between as an organic whole shaping structure, and the probe presss from both sides epitheca 3 and the probe presss from both sides PET membrane 7 with the probe with probe 4 internally mounted, 3 surface mounting of probe clamp epitheca has probe clamp button 2.

Further, rubber pads 16 are mounted at four corners of the bottom of the lower case main body 5.

Further, a weight 10 is installed inside the lower case main body 5.

Further, a socket PET film 15 is embedded in the rear end surface of the lower case body 5.

Further, the lower case body 5 is fitted and fixed to the upper case body 8 by fixing guide posts.

Further, the shell surface PET film 6 and the upper shell main body 8 are fixed through a silica gel plug 12.

The working principle is as follows: when in use, the supporting rod 1 is arranged on the upper shell main body 8, the probe clamp upper shell 3 and the probe clamp lower shell 4 are arranged on the supporting rod 1, an integrally formed structure is formed between the probe clamp upper shell 3 and the probe clamp lower shell 4, the probe clamp PET film 7 is arranged inside the probe clamp upper shell 3 and the probe clamp lower shell 4, the probe clamp upper shell 3 and the probe clamp lower shell are integrally formed, the lower shell main body 5 is embedded and fixed with the upper shell main body 8 through a fixing guide pillar, the probe clamp PET film 7 is embedded and fixed in the probe clamp shell, the device has the advantages of convenient assembly and low cost, the PH value in the solution can be measured by placing the probe clamp in the solution to be measured, the main control board 9 and the liquid crystal bracket 14 are arranged inside the lower shell main body 5, the liquid crystal display 13 is arranged on the upper end surface of the liquid crystal bracket 14, the relevant data information is calculated by the depth of the main control board 9, and, possesses the convenient high advantage of precision of measurement.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A high-precision desk type PH meter comprises a lower shell main body (5) and is characterized in that a main control board (9) and a liquid crystal support (14) are arranged inside the lower shell main body (5), the liquid crystal support (14) is arranged right above the main control board (9), a liquid crystal display (13) is arranged on the upper end surface of the liquid crystal support (14), the liquid crystal display (13) is fixed with an upper shell main body (8) through a mounting groove, a shell surface PET film (6) is arranged on the surface of the upper shell main body (8), a support rod (1) is arranged on the upper shell main body (8), a probe clamp upper shell (3) and a probe clamp lower shell (4) are arranged on the support rod (1), an integrally formed structure is arranged between the probe clamp upper shell (3) and the probe clamp lower shell (4), and a probe clamp PET film (7) is arranged inside the probe clamp upper shell (3) and the probe clamp lower shell (4), the surface of the probe clamp upper shell (3) is provided with a probe clamp button (2), and the bottom of the probe clamp button (2) is connected with the probe clamp lower shell (4) through a spring (11).

2. A high precision desktop PH meter according to claim 1, wherein: rubber pads (16) are arranged at four corners of the bottom of the lower shell main body (5).

3. A high precision desktop PH meter according to claim 1, wherein: the inside of inferior valve main part (5) is installed has balancing weight (10).

4. A high precision desktop PH meter according to claim 1, wherein: the rear end surface of the lower shell main body (5) is inlaid with a socket PET film (15).

5. A high precision desktop PH meter according to claim 1, wherein: the lower shell main body (5) is embedded and fixed with the upper shell main body (8) through a fixing guide post.

6. A high precision desktop PH meter according to claim 1, wherein: the shell surface PET film (6) and the upper shell main body (8) are fixed through a silica gel plug (12).