CN216771580U

CN216771580U - Solution acidity measuring device

Info

Publication number: CN216771580U
Application number: CN202123312731.4U
Authority: CN
Inventors: 王文乾; 李�杰; 王新
Original assignee: Shandong Fengmao Shuicao Agricultural Technology Co ltd
Current assignee: Shandong Fengmao Shuicao Agricultural Technology Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-06-17
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses a solution acidity measuring device, which comprises a device main body, an electrode frame and a clamping device, wherein an indicating meter is fixedly assembled at the top of the front side wall of the device main body, a power indicator lamp, a temperature compensation regulator and a point adjusting knob are sequentially arranged on the left side of the indicating meter along the front side wall of the device main body, a rod pump electrode joint and a glass electrode joint are respectively arranged on the right side of the indicating meter along the front side wall of the device main body, a stepping switch, a correcting knob and a positioning knob are respectively arranged on the right side of the front side wall of the device main body, a PH key, a + MV key, an MV key and a determining key are sequentially arranged at the bottom of the front side wall of the device main body along the width direction of the device main body, the device has the characteristics of simple and convenient operation, high measuring efficiency and high measuring accuracy, is convenient to disassemble and clean, and has long service life, is favorable for popularization and application.

Description

Solution acidity measuring device

Technical Field

The utility model relates to the technical field of solution acidity measurement, in particular to a solution acidity measurement device.

Background

The acidity is the concentration of hydrogen ions in the solution. The pH value between 1 and 12 can be measured by a pH meter or a pH test paper. The acidity of a solution having a pH of less than 1 or greater than 12 is directly expressed in terms of hydrogen ion or hydroxide ion concentration. A greater value of acidity indicates a more acidic solution. However, the existing measuring device for the acidity of the solution is inconvenient in the actual use process, the electrode frame is complex in structure and difficult to disassemble and clean, so that the service life is short, the number of the electrodes is small, and the applicability is poor; meanwhile, the existing device is poor in measurement accuracy, so that a solution acidity measurement device is provided.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a solution acidity measuring device which can effectively solve the problems in the background art.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a solution acidity measuring device, includes device main part and electrode frame and clamping device, the preceding lateral wall top fixed mounting of device main part has the instruction table, power indicator and temperature compensation regulator and some adjust knob have set gradually on the preceding lateral wall of device main part are followed to the left of instruction table, be provided with pole pump electrode joint and glass electrode joint on the right-hand preceding lateral wall of following the device main part of instruction table respectively, the preceding lateral wall right side of device main part is provided with stepping switch, correction knob and location knob respectively, the preceding lateral wall bottom of device main part has set gradually PH button, + MV button, -MV button and enter key along the width direction of device main part.

Preferably, the electrode frame comprises a connecting piece and a rotating frame, the electrode frame is hinged with the device main body through the connecting piece, and a weight reduction groove is formed in the rotating frame.

Preferably, the swivel mount is hinged to the electrode frame, a clamping bump is fixedly connected to one side wall of the swivel mount, which is far away from the electrode frame, and a threaded hole is formed in the top of the clamping bump.

Preferably, a plurality of clamping grooves are formed in the outer surface of the clamping device, and anti-skid grains are arranged on the inner side walls of the clamping grooves.

Preferably, the clamping grooves are formed in the side wall, located between the two adjacent groups of clamping grooves, of the outer surface of the clamping device.

Preferably, the size of joint groove and joint lug looks adaptation, and the top spiro union in joint groove is equipped with fixing bolt.

Preferably, the fixing bolt is in threaded clamping connection with a threaded hole in the top of the clamping convex block.

Preferably, the clamping device is fixedly clamped with the rotating frame through a clamping groove.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the electrode holder, the electrode holder is hinged with the device main body and the rotating frame respectively, so that the measuring work is convenient to carry out, meanwhile, the clamping device is fixedly clamped on one side of the rotating frame through the clamping convex block, a plurality of groups of electrodes can be effectively clamped by utilizing a plurality of clamping grooves of the clamping device, the multi-item measuring work aiming at the solution is convenient to carry out, the application range of the device is effectively improved, the electrode holder is mainly of a detachable threaded structure and a clamping structure, the electrodes are convenient to detach and clean, and the service life of the electrode holder is prolonged;

2. the utility model has compact and reasonable structure and simple operation, when in use, the power supply is switched on, the PH key is pressed, the instrument is preheated for about 30 minutes, the temperature compensator is adjusted to the temperature of the solution to be measured, the electrode is connected, the connected electrode is inserted into the pH standard buffer solution, the determination key is pressed, the positioning knob is adjusted to ensure that the pointer points on the pH scale of the standard buffer solution (the sum of the numerical value pointed by the stepping switch and the numerical value pointed by the pointer of the indicating meter), the solution is stirred, and the positioning knob is repeatedly adjusted until the pointer is stable. Then the fixing key is released, the positioning is completed, and the positioning knob can not be moved any more. The electrode is taken out, the electrode is washed clean by distilled water, water on the surface of the electrode is slightly sucked by filter paper, the electrode is included in the solution to be measured, the step switch is shifted to the measuring range to be measured, the determination key is pressed, the sum of the numerical value indicated by the step switch and the numerical value indicated by the pointer of the indicating meter is the pH value of the solution to be measured, and the device is high in measuring efficiency and high in measuring accuracy.

Drawings

FIG. 1 is a schematic structural diagram of a device body according to the present invention;

FIG. 2 is a schematic view of the electrode holder of the present invention;

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

FIG. 4 is an enlarged view of the structure at A of the present invention.

In the figure: 1. a device main body; 2. an indication table; 3. a power indicator light; 4. a temperature compensation regulator; 5. A knob is clicked; 6. a rod pump electrode joint; 7. a glass electrode joint; 8. a stepping switch; 9. a rectification knob; 10. positioning a knob; 11. an electrode holder; 12. a PH key; 13. + MV key; 14. -an MV key; 15. determining a key; 16. a connecting member; 17. a rotating frame; 18. a weight reduction groove; 19. clamping the convex block; 20. A threaded hole; 21. a clamping device; 22. a clamping groove; 23. anti-skid lines; 24. a clamping groove; 25. and (5) fixing the bolt.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

Referring to fig. 1-4, the present invention provides a technical solution:

the utility model provides a solution acidity measuring device, including device main part 1 and electrode frame 11 and clamping device 21, the fixed assembly in front lateral wall top of device main part 1 has instruction table 2, instruction table 2's left side is followed and is set gradually on the front side wall of device main part 1 power indicator 3 and temperature compensation regulator 4 and point adjusting knob 5, the right-hand front side wall of following device main part 1 of instruction table 2 is provided with pole pump electrode joint 6 and glass electrode joint 7 respectively, device main part 1's front side wall right side is provided with stepping switch 8 respectively, correction knob 9 and location knob 10, device main part 1's front side wall bottom has set gradually PH button 12 along the width direction of device main part 1, + MV button 13, -MV button 14 and enter key 15.

Further, the electrode holder 11 comprises a connecting piece 16 and a rotating frame 17, the electrode holder 11 is hinged with the device body 1 through the connecting piece 16, a lightening groove 18 is formed in the rotating frame 17, the rotating frame 17 is hinged with the electrode holder 11, a clamping convex block 19 is fixedly connected to one side wall of the rotating frame 17 away from the electrode holder 11, a threaded hole 20 is formed in the top of the clamping convex block 19, a plurality of clamping grooves 22 are formed in the outer surface of a clamping device 21, anti-skid threads 23 are arranged on the inner side wall of each clamping groove 22, a clamping groove 24 is formed in the side wall of the outer surface of the clamping device 21 between two adjacent groups of clamping grooves 22, the size of each clamping groove 24 is matched with that of the clamping convex block 19, a fixing bolt 25 is screwed and assembled at the top of each clamping groove 24, the fixing bolt 25 is in threaded clamping connection with the threaded hole 20 at the top of the clamping convex block 19, and the clamping device 21 is fixedly clamped with the rotating frame 17 through the clamping groove 24, through articulating electrode holder 11 with device main part 1 and swivel mount 17 respectively, be convenient for carry out measurement work, one side of swivel mount 17 has clamping device 21 through the fixed joint of joint lug 19 simultaneously, utilize a plurality of centre gripping recesses 22 of clamping device 21 can effective centre gripping multiunit electrode, be convenient for carry out multinomial measurement work to solution, the effectual application scope that improves the device, and this electrode holder 11 is mostly detachable helicitic texture and joint structure, be convenient for dismantle the clearance to the electrode, the service life thereof is prolonged.

Further, the instrument is preheated for about 30 minutes by switching on the power supply and pressing the PH key 12, the temperature compensation regulator 4 is adjusted to the temperature of the solution to be measured, the electrode is connected, the connected electrode is inserted into the pH standard buffer solution, the determination key 15 is pressed, the positioning knob 10 is adjusted to enable the pointer to point on the pH scale of the standard buffer solution (the sum of the numerical value pointed by the stepping switch 8 and the numerical value pointed by the pointer of the indicating table 2), the solution is stirred, and the positioning knob 10 is repeatedly adjusted until the pointer is stable. The setting key 15 is then released and the setting is completed, after which the setting knob 10 can no longer be moved. The electrode is taken out, the electrode is washed clean by distilled water, water on the surface of the electrode is slightly sucked by filter paper, the electrode is included in the solution to be measured, the stepping switch 8 is shifted to the measuring range, the reading determination key 15 is pressed, the sum of the value indicated by the stepping switch 8 and the index value indicated by the pointer of the indicating table 2 is the pH value of the solution to be measured, and the device is high in measuring efficiency and high in measuring accuracy.

When the device is used, a power supply is switched on, a PH key 12 is pressed, the instrument is preheated for about 30 minutes, the temperature compensation regulator 4 is adjusted to the temperature of the solution to be measured, the electrode is connected, the connected electrode is inserted into the pH standard buffer solution, the determination key 15 is pressed, the positioning knob 10 is adjusted to enable a pointer to point on the pH scale of the standard buffer solution (the sum of the numerical value indicated by the stepping switch 8 and the numerical value indicated by the pointer of the indicating table 2), the solution is stirred, and the positioning knob 10 is repeatedly adjusted until the pointer is stable. Then the setting key 15 is released and the setting is completed, after which the setting knob 10 can no longer be moved. The electrode is taken out, the electrode is washed clean by distilled water, water on the surface of the electrode is slightly sucked by filter paper, the electrode is included in the solution to be measured, the stepping switch 8 is shifted to the measuring range, the reading determination key 15 is pressed, the sum of the value indicated by the stepping switch 8 and the index value indicated by the pointer of the indicating table 2 is the pH value of the solution to be measured, and the device is high in measuring efficiency and high in measuring accuracy.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, and such changes and modifications are within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A solution acidity measuring device comprising a device body (1), an electrode holder (11), and a holding device (21), characterized in that: the utility model discloses a device, including device main part (1), preceding lateral wall top fixed mounting of device main part (1) has indicator table (2), the left of indicator table (2) has set gradually on the preceding lateral wall of device main part (1) power indicator lamp (3) and temperature compensation regulator (4) and point adjust knob (5), be provided with pole pump electrode joint (6) and glass electrode joint (7) on the right-hand preceding lateral wall along device main part (1) of indicator table (2) respectively, the preceding lateral wall right side of device main part (1) is provided with stepping switch (8), correction knob (9) and location knob (10) respectively, the preceding lateral wall bottom of device main part (1) has set gradually PH button (12), + MV button (13), -MV button (14) and enter key (15) along the width direction of device main part (1).

2. A solution acidity measuring device according to claim 1, wherein: the electrode frame (11) comprises a connecting piece (16) and a rotating frame (17), the electrode frame (11) is hinged with the device main body (1) through the connecting piece (16), and a weight reduction groove (18) is formed in the rotating frame (17).

3. A solution acidity measuring device according to claim 2, wherein: swivel mount (17) and electrode frame (11) articulated assembly, just fixedly connected with joint lug (19) on swivel mount (17) keep away from one side lateral wall of electrode frame (11), threaded hole (20) are seted up at the top of joint lug (19).

4. A solution acidity measuring device according to claim 1, wherein: a plurality of clamping grooves (22) are formed in the outer surface of the clamping device (21), and anti-skidding patterns (23) are arranged on the inner side walls of the clamping grooves (22).

5. The apparatus for measuring acidity of a solution according to claim 4, wherein: the outer surface of the clamping device (21) is positioned on the side wall between the two adjacent groups of clamping grooves (22) and is provided with a clamping groove (24).

6. The apparatus for measuring acidity of a solution according to claim 5, wherein: the big or small size and joint lug (19) looks adaptation in joint groove (24), and the top spiro union in joint groove (24) is equipped with fixing bolt (25).

7. The apparatus for measuring acidity of a solution according to claim 6, wherein: the fixing bolt (25) is in threaded connection with the threaded hole (20) in the top of the clamping convex block (19).

8. A solution acidity measuring device according to claim 1, wherein: the clamping device (21) is fixedly clamped with the rotating frame (17) through a clamping groove (24).