A chemical PH acidity detection and analysis instrument

Abstract

The present invention relates to the technical field of chemical detection, and specifically relates to a chemical PH acidity detection and analysis instrument, which includes a base. A dilution assembly is arranged on the base. The dilution assembly includes dilution barrels. Two dilution barrels are fixedly connected to the base. A circular shell is fixedly connected between the two dilution barrels. Two liquid inlet holes are provided on the circular shell, and the two liquid inlet holes are respectively located inside the two dilution barrels. A turntable is rotatably connected inside the circular shell. A liquid storage tank is provided on the turntable, and a cavity and a one-way valve are arranged inside the turntable. The one-way valve is located between the liquid storage tank and the cavity. A liquid inlet tank is fixedly connected to the base, and the liquid inlet tank is communicated with the inside of the cavity. A detection assembly is arranged on the base. The detection assembly includes a bracket. The bracket is fixedly connected to the base. A telescopic motor is fixedly connected to the bracket. A lifting seat is slidably connected to the bracket; the present invention can dilute chemical raw materials in two times, reduce the danger in the detection process through dilution, and indirectly measure the PH value of the raw materials.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical industry detection, and specifically to a chemical PH acidity detection and analysis instrument. Background Art

[0002] The chemical industry often comes into contact with various chemical raw materials. The PH value is one of the important properties of liquid chemical raw materials. Therefore, during the detection and inspection of various liquid chemical raw materials, the detection process includes the detection of the PH value.

[0003] Liquid chemical raw materials often involve some strong acids and strong bases, and the PH values of these strong acids and strong bases even fall outside the conventional PH value range of 0-14. Due to the extreme PH values, during PH detection, the raw materials will affect the probe life of the PH detection instrument. Moreover, due to the strong acidity or alkalinity of these raw materials, and some raw materials are also volatile, there is a certain danger during the detection process. Therefore, a chemical PH acidity detection and analysis instrument is needed to solve these problems. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention proposes a chemical PH acidity detection and analysis instrument, which can dilute chemical raw materials twice, reduce the danger during the detection process through dilution, and indirectly measure the PH value of the raw materials.

[0005] The technical solution to achieve the object of the present invention is: a chemical PH acidity detection and analysis instrument, including a base 1, and the base 1 further includes:

[0006] A dilution component 2, the dilution component 2 includes a dilution barrel 21, two dilution barrels 21 are fixedly connected to the base 1, a circular shell 22 is fixedly connected between the two dilution barrels 21, two liquid inlet holes 23 are opened on the circular shell 22, the two liquid inlet holes 23 are respectively located inside the two dilution barrels 21, a turntable 24 is rotatably connected inside the circular shell 22, a liquid storage tank 25 is opened on the turntable 24, and a cavity 26 and a one-way valve 27 are provided inside the turntable 24, the one-way valve 27 is located between the liquid storage tank 25 and the cavity 26, and a liquid inlet tank 28 is fixedly connected to the base 1, and the liquid inlet tank 28 is communicated with the inside of the cavity 26;

[0007] A detection component 3, the detection component 3 includes a bracket 31, the bracket 31 is fixedly connected to the base 1, a telescopic motor 32 is fixedly connected to the bracket 31, a lifting seat 33 is slidably connected to the bracket 31, the lifting seat 33 is fixedly connected to the output shaft of the telescopic motor 32, a detection analyzer 34 is provided at the top of the lifting seat 33, two probes 35 and two infrared thermometers 36 are provided at the bottom of the lifting seat 33, and a driving component 4 is provided on the circular shell 22;

[0008] Liquid inlet assembly 5, the liquid inlet assembly 5 includes a liquid storage tank 51 and a liquid infusion tube 59, the liquid storage tank 51 is fixedly connected to the base 1, and the liquid infusion tube 59 is fixedly connected between the liquid storage tank 51 and the liquid inlet tank 28.

[0009] Preferably, the detection assembly further includes a threaded sleeve and a protective sleeve. The two threaded sleeves are fixedly connected to the bottom of the lifting seat. The two protective sleeves are respectively threadedly connected to the threaded sleeves, and the two probes are respectively located inside the two protective sleeves.

[0010] Preferably, the driving assembly includes a housing, a rotating cylinder, an inclined groove, a lifting column and a fixing rod. The housing is fixedly connected to the circular shell. The rotating cylinder is rotatably connected to the inside of the housing. The rotating cylinder is fixedly connected to the turntable. The inclined groove is opened inside the rotating cylinder. The lifting column is slidably connected to the inside of the housing. The fixing rod is fixedly connected to the lifting column, and the fixing rod is slidably connected to the inside of the inclined groove.

[0011] Preferably, the driving assembly further includes a first spring and a pressing rod. The first spring is fixedly connected between the inner wall of the housing and the lifting column. The pressing rod is fixedly connected to the lifting seat.

[0012] Preferably, the liquid inlet assembly further includes a pressing plate, a piston, a second spring, a third spring and a fixing plate. The pressing plate and the piston are slidably connected inside the liquid storage tank. The second spring is fixedly connected between the pressing plate and the piston. The fixing plate is fixedly connected to the liquid storage tank. The third spring is fixedly connected between the fixing plate and the pressing plate.

[0013] Preferably, the liquid inlet assembly further includes a connecting rod. One end of the connecting rod is fixedly connected to the lifting seat. The other end of the connecting rod is fixedly connected to the pressing plate, and the connecting rod is slidably connected to the fixing plate.

[0014] Preferably, the liquid inlet assembly further includes a baffle. The baffle is fixedly connected to the piston, and the baffle is slidably connected to the inner wall of the liquid storage tank.

[0015] Preferably, a distilled water tank is provided on the base, and a liquid inlet pipe is fixedly connected between the distilled water tank and the liquid storage tank.

[0016] Compared with the prior art, the remarkable advantages of the present invention are:

[0017] First: In the present invention, a ml sample of the chemical raw material to be tested can be taken and poured into a dilution barrel, and then ml distilled water will be poured into the dilution barrel, thereby diluting the sample ten times. After the strong acid and strong base are diluted ten times, their pH value will increase or decrease. After the raw material is diluted ten times, ml of dilution will enter the liquid inlet hole on the round shell, and then enter the liquid storage tank on the turntable. The volume of the liquid storage tank is also ml. After that, the turntable rotates, and the ml dilution in the liquid storage tank will be transferred to another dilution barrel, and then ml distilled water will be poured in again. At this time, the dilution is diluted ten times again. After two dilutions, the pH value of the dilution in the two dilution barrels will be added or subtracted and added or subtracted respectively compared with the original pH value. Therefore, at this time, the pH value of the dilution in the two dilution barrels is tested, which is not only safer, but also reduces the degree of corrosion to the probe. The detected pH value can also be used to calculate the pH value of the raw material.

[0018] Secondly: In the present invention, by setting a dilution component, when diluting ml of raw materials, ml of raw materials can be poured into one of the dilution barrels first, and then the telescopic motor only needs to be started, and the entire dilution process will be carried out automatically. After starting the telescopic motor, its output shaft will move downward, driving the entire lifting seat to move downward. When the lifting seat moves downward, the connecting rod will press downward, driving the pressure plate to move downward, and the pressure plate will drive the piston downward through the second spring. When the piston moves downward, the distilled water in the liquid storage tank will be squeezed, so that the distilled water will be discharged from the infusion tube and then enter the liquid inlet tank. The liquid inlet tank is connected to the cavity, so the distilled water will eventually enter the cavity, and then enter the one-way valve, and finally be sprayed out from the liquid storage tank. The distilled water sprayed from the liquid storage tank will contact the ml of raw materials and dilute it. Since the distilled water enters the dilution barrel in the form of a jet, the distilled water will form a strong water flow in the dilution barrel, which has a similar stirring effect. Therefore, no additional stirring is required during the dilution process.

[0019] Thirdly: In the present invention, by providing a driving component and a liquid inlet component, as the lifting seat slowly descends, distilled water continuously sprays out from the liquid storage tank. During this process, the pressure rod also descends continuously, but the pressure rod will not contact the lifting column in the lower housing within a certain period of time. The descent of the pressure rod and the pressing plate is synchronized with the lifting seat, and the distance by which the pressing plate descends determines the distance by which the piston descends. The distance by which the piston descends determines the amount of distilled water that moves from the liquid storage tank into the dilution bucket. Therefore, as long as the initial position of the pressure rod is appropriate, when the pressure rod contacts the lifting column and drives the turntable to rotate, the amount of distilled water entering the dilution bucket is exactly [X] ml, that is, [X] ml of the raw material is diluted ten times. Even if the amount of distilled water finally entering the dilution bucket is not exactly [X] ml, an error of a few milliliters will only cause a minimal error to the final test result, which is within the allowable range and thus will not affect the test result. When [X] ml of distilled water is injected into the dilution bucket, the pressure rod contacts the lifting column, driving the lifting column and the fixed rod to move downward. Since the fixed rod is in the inclined groove, the downward movement of the fixed rod will drive the rotating cylinder to rotate, and the rotation of the rotating cylinder drives the turntable to rotate. At this time, the turntable turns the [X] ml of diluted liquid in the liquid storage tank towards another dilution bucket. During the rotation of the turntable, the pressing plate and the connecting rod still move downward, but at this time the piston does not move, and the second spring will gradually compress. When the liquid storage tank moves to another liquid inlet hole, the telescopic motor stops, and the [X] ml of diluted liquid will enter another dilution bucket. At the same time, the piston moves downward under the action of the second spring, squeezing out [X] ml of distilled water again and entering another dilution bucket. Therefore, at this time, in another dilution bucket, the [X] ml of diluted liquid will be diluted ten times again.

[0020] Fourthly: In the present invention, after two dilutions, the probe descending with the lifting seat will also just insert into the diluted liquids in the two dilution buckets, thus completing the detection of the pH value. Two infrared thermometers can detect the temperatures of the diluted liquids in the two dilution buckets, and then through the detection analyzer, the analysis is completed to correct the pH value deviation caused by the temperature difference between the two dilution buckets. This process needs to utilize the Nernst equation, which is completed by the detection analyzer. Finally, the detection analyzer detects the pH values of the diluted liquids in the two dilution buckets. Since the diluted liquids in the two dilution buckets are obtained by diluting the raw material ten times and one hundred times respectively, the pH values of the diluted liquids in the two dilution buckets are the pH value of the raw material plus or minus [A] and plus or minus [B]. Therefore, the pH value of the raw material can be obtained by adding or subtracting [A] or [B] based on the pH values of the diluted liquids. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further explained below with reference to the drawings and embodiments:

[0022] Figure 1 is the three-dimensional structure schematic diagram of the present invention Figure 1 ;

[0023] Figure 2 is the three-dimensional structure schematic diagram of the present invention Figure 2 ;

[0024] Figure 3 It is a schematic diagram of the connection structure between the dilution barrel and the circular shell in the present invention;

[0025] Figure 4 It is a cross-sectional view of the internal structure of the dilution component and the drive component in the present invention;

[0026] Figure 5 In the present invention Figure 4 An enlarged view of the structure of part A shown;

[0027] Figure 6 It is a cross-sectional view of the internal structure of the circular shell in the present invention;

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the dilution component and the drive component in the present invention;

[0029] Figure 8 It is a cross-sectional view of the internal structure of the liquid storage tank in the present invention;

[0030] Figure 9 It is a schematic diagram of the three-dimensional structure of the pressing plate and the piston in the present invention. <00>

[0031] Explanation of reference numerals:

[0032] 1. Base; 2. Dilution component; 21. Dilution barrel; 22. Circular shell; 23. Liquid inlet hole; 24. Turntable; 25. Liquid storage tank; 26. Cavity; 27. Check valve; 28. Liquid inlet tank; 3. Detection component; 31. Support; 32. Telescopic motor; 33. Lifting seat; 34. Detection analyzer; 35. Probe; 36. Infrared temperature detector; 37. Threaded sleeve; 38. Protective sleeve; 4. Drive component; 41. Housing; 42. Rotating cylinder; 43. Inclined groove; 44. Lifting column; 45. Fixed rod; 46. First spring; 47. Pressing rod; 5. Liquid inlet component; 51. Liquid storage tank; 52. Pressing plate; 53. Piston; 54. Second spring; 55. Third spring; 56. Connecting rod; 57. Fixed plate; 58. Baffle; 59. Liquid delivery pipe; 6. Liquid inlet pipe; 7. Distilled water tank. Detailed implementation manners

[0033] The present invention will be described in detail below. The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] The present invention provides a chemical PH acidity detection and analysis instrument through improvement. The technical solution of the present invention is:

[0035] like Figures 1 - 9 As shown, a chemical pH acidity detection and analysis instrument includes a base 1, a dilution component 2 is provided on the base 1, and the dilution component 2 includes a dilution barrel 21. Two dilution barrels 21 are fixedly connected to the base 1. A circular shell 22 is fixedly connected between the two dilution barrels 21. The circular shell 22 is provided with two liquid inlet holes 23. The two liquid inlet holes 23 are respectively located inside the two dilution barrels 21. A turntable 24 is rotatably connected inside the circular shell 22. A liquid storage tank 25 is provided on the turntable 24, and a cavity 26 and a one-way valve 27 are provided inside the turntable 24. The one-way valve 27 is located between the liquid storage tank 25 and the cavity 26. 10 ml of diluent can enter the liquid storage tank 25, so that the 10 ml of diluent moves to the other dilution barrel 21 as the turntable 24 rotates, thereby being diluted ten times again. The function of the one-way valve 27 is to prevent the liquid storage tank from The diluted liquid in the tank 25 enters the cavity 26. The base 1 is fixedly connected to a liquid inlet tank 28, which is communicated with the interior of the cavity 26. A detection component 3 is provided on the base 1. The detection component 3 includes a bracket 31, which is fixedly connected to the base 1. A telescopic motor 32 is fixedly connected to the bracket 31. A lifting seat 33 is slidably connected to the bracket 31. The lifting seat 33 is fixedly connected to the output shaft of the telescopic motor 32. A detection analyzer 34 is provided on the top of the lifting seat 33, and two probes 35 and two infrared thermometers 36 are provided at the bottom of the lifting seat 33. A driving component 4 is provided on the round shell 22, and a liquid inlet component 5 is provided on the base 1. The liquid inlet component 5 includes a liquid storage tank 51 and an infusion tube 59. The liquid storage tank 51 is fixedly connected to the base 1, and the infusion tube 59 is fixedly connected between the liquid storage tank 51 and the liquid inlet tank 28.

[0036] Furthermore, the detection component 3 also includes a threaded sleeve 37 and a protective sleeve 38. The two threaded sleeves 37 are fixedly connected to the bottom of the lifting seat 33. The two protective sleeves 38 are respectively threadedly connected to the threaded sleeves 37. The two probes 35 are respectively located inside the two protective sleeves 38. The protective sleeves 38 are used to protect the probes 35. When not in use, the probes 35 need to be immersed in a specific protective liquid. The protective sleeves 38 can be filled with a certain amount of protective liquid and then installed on the threaded sleeves 37, thereby protecting the probes 35. The protective sleeves 38 can be removed when in use.

[0037] Further, the driving component 4 includes a housing 41, a rotating cylinder 42, an inclined groove 43, a lifting column 44 and a fixing rod 45. The housing 41 is fixedly connected to the circular housing 22. The rotating cylinder 42 is rotatably connected to the inside of the housing 41. The rotating cylinder 42 is fixedly connected to the turntable 24. The inclined groove 43 is formed in the rotating cylinder 42. The lifting column 44 is slidably connected to the inside of the housing 41. The fixing rod 45 is fixedly connected to the lifting column 44 and the fixing rod 45 is slidably connected to the inside of the inclined groove 43. When the lifting column 44 and the fixing rod 45 move downward, since the fixing rod 45 slides in the inclined groove 43, the rotating cylinder 42 and the turntable 24 will be forced to rotate.

[0038] Further, the driving component 4 further includes a first spring 46 and a pressing rod 47. The first spring 46 is fixedly connected between the inner wall of the housing 41 and the lifting column 44. The pressing rod 47 is fixedly connected to the lifting seat 33. When the output shaft of the telescopic motor 32 resets, the first spring 46 will drive the lifting column 44 to reset, thereby resetting the rotating cylinder 42 and the turntable 24.

[0039] Further, the liquid inlet component 5 further includes a pressing plate 52, a piston 53, a second spring 54, a third spring 55 and a fixing plate 57. The pressing plate 52 and the piston 53 are slidably connected to the inside of the liquid storage tank 51. The second spring 54 is fixedly connected between the pressing plate 52 and the piston 53. The fixing plate 57 is fixedly connected to the liquid storage tank 51. The third spring 55 is fixedly connected between the fixing plate 57 and the pressing plate 52.

[0040] Further, the liquid inlet component 5 further includes a connecting rod 56. One end of the connecting rod 56 is fixedly connected to the lifting seat 33, and the other end of the connecting rod 56 is fixedly connected to the pressing plate 52. The connecting rod 56 is slidably connected to the fixing plate 57. The connecting rod 56 always moves downward and drives the pressing plate 52 to move downward. When the pressing plate 52 presses down, it will press the piston 53 through the second spring 54, thereby squeezing and injecting the distilled water in the liquid storage tank 51 into the cavity 26 and finally spraying it out from the liquid storage groove 25. When the turntable 24 rotates, the liquid storage groove 25 is blocked by the inner wall of the circular housing 22. At this time, the pressing plate 52 continues to press down, but the piston 53 does not move, and the second spring 54 will be compressed at this time.

[0041] Further, the liquid inlet component 5 further includes a baffle 58. The baffle 58 is fixedly connected to the piston 53 and the baffle 58 is slidably connected to the inner wall of the liquid storage tank 51.

[0042] Further, a distilled water tank 7 is provided on the base 1. A liquid inlet pipe 6 is fixedly connected between the distilled water tank 7 and the liquid storage tank 51. The distilled water in the distilled water tank 7 will be supplemented into the liquid storage tank 51 through the liquid inlet pipe 6. When the piston 53 moves downward, that is, when the dilution process is in progress, the baffle 58 will block the liquid inlet pipe 6. When the output shaft of the telescopic motor 32 resets, the third spring 55 will drive the pressing plate 52 and the piston 53 to reset. At this time, the distilled water will be supplemented into the liquid storage tank 51 through the liquid inlet pipe 6. The height of the distilled water tank 7 is higher than that of the liquid storage tank 51, so the liquid storage tank 51 will be filled with distilled water.

[0043] The specific working method is as follows: First, take a 10 ml sample of the chemical raw material to be detected and pour the sample into a dilution bucket 21. Then, 90 ml of distilled water will be poured into the dilution bucket 21 to dilute the sample ten times. After being diluted ten times, the pH value of strong acids and strong bases will increase or decrease by 1. Among the diluted raw materials, 10 ml of the diluted liquid will enter the liquid inlet hole 23 on the round shell 22 and then enter the liquid storage tank 25 on the turntable 24. The volume of the liquid storage tank 25 is also 10 ml. Then the turntable 24 rotates, and the 10 ml of diluted liquid in the liquid storage tank 25 will be transferred to another dilution bucket 21. Subsequently, 90 ml of distilled water is poured again. At this time, the diluted liquid is diluted ten times again. After two dilutions, the pH values of the diluted liquids in the two dilution buckets 21 compared with the raw material will increase or decrease by 1 and increase or decrease by 2 respectively on the original pH value. Therefore, when detecting the pH values of the diluted liquids in the two dilution buckets 21 at this time, not only is the safety higher, but the corrosion degree of the probe 35 is reduced, and the pH value detected can also be used to calculate the pH value of the raw material.

[0044] When diluting 10 ml of the raw material, it is necessary to first pour 10 ml of the raw material into one of the dilution buckets 21. Then, only need to start the telescopic motor 32, and the entire dilution process will proceed automatically. After starting the telescopic motor 32, its output shaft will move downward, driving the entire lifting seat 33 to move downward. When the lifting seat 33 moves downward, the connecting rod 56 will be pressed downward, driving the pressing plate 52 to move downward. The pressing plate 52 will drive the piston 53 to move downward through the second spring 54. When the piston 53 moves downward, the distilled water in the liquid storage tank 51 will be squeezed, so that the distilled water is discharged from the infusion pipe 59 and then enters the liquid inlet tank 28. The liquid inlet tank 28 is connected to the cavity 26, so the distilled water will finally enter the cavity 26, then enter the one-way valve 27, and finally spray out from the liquid storage tank 25. The distilled water sprayed out from the liquid storage tank 25 will contact the 10 ml of raw material and dilute it. Since the distilled water enters the dilution bucket 21 in a jet form, strong water flow will be formed in the dilution bucket 21, playing a role similar to stirring. Therefore, no additional stirring is required during the dilution process.

[0045] As the lifting seat 33 slowly descends, distilled water continuously sprays out from the liquid storage tank 25. During this process, the pressure lever 47 also continuously descends, but the pressure lever 47 will not contact the lifting column 44 inside the lower housing 41 within a certain period of time. The descent of the pressure lever 47 and the pressing plate 52 is synchronous with that of the lifting seat 33, and the distance by which the pressing plate 52 presses down determines the distance by which the piston 53 presses down. The distance by which the piston 53 presses down determines the amount of distilled water that moves from the liquid storage tank 51 into the dilution barrel 21. Therefore, as long as the initial position of the pressure lever 47 is appropriate, when the pressure lever 47 contacts the lifting column 44 and drives the turntable 24 to rotate, exactly 90 ml of distilled water enters the dilution barrel 21, that is, 10 ml of the raw material is diluted ten times. Even if the distilled water finally entering the dilution barrel 21 is not exactly 90 ml, an error of several milliliters will only cause a minimal error to the final detection result, which is within the allowable range and thus will not affect the detection result. When 90 ml of distilled water is injected into the dilution barrel 21, the pressure lever 47 contacts the lifting column 44 and drives the lifting column 44 and the fixed rod 45 to move downward. Since the fixed rod 45 is in the inclined slot 43, the downward movement of the fixed rod 45 will drive the rotating cylinder 42 to rotate. The rotation of the rotating cylinder 42 drives the turntable 24 to rotate. At this time, the turntable 24 turns the 10 ml of diluted liquid in the liquid storage tank 25 towards another dilution barrel 21. During the rotation of the turntable 24, the pressing plate 52 and the connecting rod 56 will still move downward, but at this time the piston 53 will not move, and the second spring 54 will gradually compress. When the liquid storage tank 25 moves to another liquid inlet hole 23, the telescopic motor 32 stops, and 10 ml of the diluted liquid will enter another dilution barrel 21. At the same time, the piston 53 moves downward under the action of the second spring 54 and squeezes out 90 ml of distilled water again and enters another dilution barrel 21. Therefore, at this time, in another dilution barrel 21, the 10 ml of diluted liquid will be diluted ten times again.

[0046] After two dilutions, the probe 35 will also exactly insert into the diluted liquids in the two dilution barrels 21, thus completing the detection of the pH value. The two infrared thermometers 36 can detect the temperatures of the diluted liquids in the two dilution barrels 21, and then complete the analysis through the detection analyzer 34 to correct the pH value deviation caused by the temperature difference in the two dilution barrels 21. This process needs to utilize the Nernst equation and is completed by the detection analyzer 34. Finally, the detection analyzer 34 detects the pH values of the diluted liquids in the two dilution barrels 21. Since the diluted liquids in the two dilution barrels 21 are obtained by diluting the raw material ten times and one hundred times respectively, the pH values of the diluted liquids in the two dilution barrels 21 are the pH value of the raw material plus or minus 1 and plus or minus 2. Therefore, the pH value of the raw material can be obtained by adding or subtracting 1 or adding or subtracting 2 based on the pH value of the diluted liquid.

[0047] The technical means disclosed by the solution of the present invention are not limited to the technical means disclosed by the above technical means, but also include technical solutions composed of equivalent replacements of the above technical features. Matters not covered by the present invention are common knowledge in the art.

Claims

1. A chemical pH acidity detection and analysis instrument, comprising a base (1), characterized in that: The base (1) also includes: A dilution assembly (2), the dilution assembly (2) comprising a dilution barrel (21), two dilution barrels (21) being fixedly connected to a base (1), a circular shell (22) being fixedly connected between the two dilution barrels (21), two liquid inlet holes (23) being provided on the circular shell (22), the two liquid inlet holes (23) being respectively located inside the two dilution barrels (21), a turntable (24) being rotatably connected inside the circular shell (22), a liquid storage tank (25) being provided on the turntable (24), and a cavity (26) and a one-way valve (27) being provided inside the turntable (24), the one-way valve (27) being located between the liquid storage tank (25) and the cavity (26), a liquid inlet tank (28) being fixedly connected to the base (1), the liquid inlet tank (28) being communicated with the interior of the cavity (26); A detection component (3), wherein the detection component (3) includes a bracket (31), the bracket (31) is fixedly connected to the base (1), a telescopic motor (32) is fixedly connected to the bracket (31), a lifting seat (33) is slidably connected to the bracket (31), the lifting seat (33) is fixedly connected to the output shaft of the telescopic motor (32), a detection analyzer (34) is provided on the top of the lifting seat (33), two probes (35) and two infrared thermometers (36) are provided on the bottom of the lifting seat (33), a driving component (4) is provided on the circular shell (22), and the driving component (4) includes a shell (41), a rotating drum (42), a chute (43), a lifting column (44) and a fixing rod (45), The shell (41) is fixedly connected to the round shell (22), the rotating drum (42) is rotatably connected to the inside of the shell (41), the rotating drum (42) is fixedly connected to the turntable (24), the inclined groove (43) is opened inside the rotating drum (42), the lifting column (44) is slidably connected to the inside of the shell (41), the fixed rod (45) is fixedly connected to the lifting column (44), and the fixed rod (45) is slidably connected to the inside of the inclined groove (43), the driving assembly (4) further includes a first spring (46) and a pressure rod (47), the first spring (46) is fixedly connected between the inner wall of the shell (41) and the lifting column (44), and the pressure rod (47) is fixedly connected to the lifting seat (33); A liquid inlet assembly (5), the liquid inlet assembly (5) comprising a liquid storage tank (51) and a liquid infusion tube (59), the liquid storage tank (51) being fixedly connected to the base (1), the liquid infusion tube (59) being fixedly connected between the liquid storage tank (51) and the liquid inlet tank (28), the liquid inlet assembly (5) further comprising a pressing plate (52), a piston (53), a second spring (54), a third spring (55) and a fixed plate (57), the pressing plate (52) and the piston (53) being slidably connected to the interior of the liquid storage tank (51), The second spring (54) is fixedly connected between the pressure plate (52) and the piston (53), the fixed plate (57) is fixedly connected to the liquid storage tank (51), the third spring (55) is fixedly connected between the fixed plate (57) and the pressure plate (52), and the liquid inlet assembly (5) further includes a connecting rod (56), one end of the connecting rod (56) is fixedly connected to the lifting seat (33), the other end of the connecting rod (56) is fixedly connected to the pressure plate (52), and the connecting rod (56) is slidably connected to the fixed plate (57).

2. A chemical pH acidity detection and analysis instrument according to claim 1, characterized in that: The detection assembly (3) further comprises a threaded sleeve (37) and a protective sleeve (38), wherein the two threaded sleeves (37) are fixedly connected to the bottom of the lifting seat (33), the two protective sleeves (38) are respectively threadedly connected to the threaded sleeves (37), and the two probes (35) are respectively located inside the two protective sleeves (38).

3. A chemical pH acidity detection and analysis instrument according to claim 1, characterized in that: The liquid inlet assembly (5) further comprises a baffle (58), wherein the baffle (58) is fixedly connected to the piston (53), and the baffle (58) is slidably connected to the inner wall of the liquid storage tank (51).

4. A chemical pH acidity detection and analysis instrument according to claim 1, characterized in that: A distilled water tank (7) is provided on the base (1), and a liquid inlet pipe (6) is fixedly connected between the distilled water tank (7) and the liquid storage tank (51).

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