Multifunctional full-automatic water quality-salt iodine analyzer

Abstract

The utility model relates to the technical field of detection equipment, in particular to a multifunctional full-automatic water quality-salt iodine analyzer. Comprising an analyzer body, and a sample holder, a cooling mechanism, a multi-mode heating mechanism, a titration mechanism, a titration end point identification mechanism and a three-axis mechanical arm assembly are arranged on the analyzer body. The three-axis mechanical arm assembly is arranged at the upper end of the analyzer body. The titration mechanism is arranged at the front end of the sample rack, and the titration end point identification mechanism corresponds to the titration mechanism. The multi-mode heating mechanism comprises a water tank, a heating cover and a heating block, the heating block is attached to the outer side wall of the bottom of the water tank, the heating cover is arranged in the water tank, a single-row heating position is arranged on the heating cover, and a water inlet is formed in the water tank. The sample rack and the water tank are arranged in parallel, and the cooling mechanism is arranged at the bottom of the sample rack. The water quality and the salt iodine can be automatically detected and analyzed, so that multiple purposes are realized, and the detection cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a multi-functional full-automatic water quality-salt iodine analyzer. Background Technique

[0002] Titrimetric analysis is a method of adding a reagent solution with a known accurate concentration drop by drop to the solution of the substance to be measured until the added reagent reacts quantitatively with the substance to be measured according to stoichiometry. According to the concentration and consumed volume of the reagent solution, the content of the substance to be measured is calculated. This reagent solution with a known accurate concentration is called the titrant. The process of adding the titrant from the burette to the solution of the substance to be measured is called titration. When the amount of substance in the added titrant reacts quantitatively with the amount of the substance to be measured according to stoichiometry, the reaction reaches the stoichiometric point. During the titration process, the turning point at which the indicator changes color is called the titration end point.

[0003] In the process of existing water quality detection analysis and salt iodine detection analysis, titration method is also used. At present, in the detection process, there are respective detection devices for water quality and salt iodine detection. However, in actual procurement and use, it is found that there are some similar steps in the process of water quality and salt iodine analysis.

[0004] Therefore, considering the detection cost, whether a new multi-functional detection analyzer that can both perform water quality detection and salt iodine analysis can be developed is a technical problem that urgently needs to be solved. Summary of the Invention

[0005] To solve the deficiencies of the existing technology, the utility model provides a multi-functional full-automatic water quality-salt iodine analyzer.

[0006] The technical solution of the utility model is as follows:

[0007] A multi-functional full-automatic water quality-salt iodine analyzer includes an analyzer body, on which a sample rack, a cooling mechanism, a multi-mode heating mechanism, a titration mechanism, a titration end point recognition mechanism and a three-axis robotic arm assembly are provided. The three-axis robotic arm assembly is arranged at the upper end of the analyzer body and is used for transferring the sample to be measured. The titration mechanism is arranged at the front end of the sample rack, and the titration end point recognition mechanism is correspondingly arranged with the titration mechanism and is used for recognizing the titration end point during the titration process of the titration mechanism. The multi-mode heating mechanism includes a water tank, a heating cover and a heating block. The heating block is attached to the outer bottom wall of the water tank, the heating cover is arranged in the water tank, a single-row heating position is arranged on the heating cover, and a water inlet is arranged on the water tank. The sample rack is arranged parallel to the water tank, and the cooling mechanism is arranged at the bottom of the sample rack.

[0008] Further, the three-axis robotic arm assembly includes an X-axis translation mechanism, a Y-axis translation mechanism, and a Z-axis lifting mechanism. The X-axis translation mechanism is connected to the Y-axis translation mechanism, and the Z-axis lifting mechanism is connected to the Y-axis translation mechanism.

[0009] Further, the titration mechanism includes a titration position and a reagent addition position. A magnetic stirring mechanism is provided at the titration position, and a corresponding magnetic stirring rotor is provided in the sample cup.

[0010] Furthermore, the magnetic stirring mechanism includes a housing, a brushless motor, and a magnet. The housing includes a titration tank, and an identification port is provided at the rear of the titration tank. The titration end identification mechanism is correspondingly arranged with the identification port; the magnet is connected to the output end of the brushless motor and is arranged at the lower part of the titration tank.

[0011] Further, the reagent addition position includes a sample addition needle fixing plate and a sample addition needle seat vertically arranged with the sample addition needle fixing plate. A sample addition hole is provided on the sample addition needle seat.

[0012] Furthermore, a driving mechanism is provided at the reagent addition position, and the driving mechanism drives the reagent addition position to reciprocate horizontally.

[0013] Further, the driving mechanism includes a track, a slider, a driving motor, and a driving belt. The track is arranged on the bottom plate of the analyzer body. The horizontal slider is fixedly connected to the sample addition needle fixing plate and is fixed on the driving belt. The driving belt is connected to the output end of the driving motor.

[0014] Further, the titration end identification mechanism is set as a color sensor.

[0015] Further, the cooling mechanism is set as a semiconductor refrigerator.

[0016] Further, the sample racks are arranged in several groups in parallel.

[0017] The beneficial effects achieved by the present utility model are as follows:

[0018] A multifunctional full-automatic water quality-salt iodine analyzer in the present utility model can perform automatic detection and analysis of water quality and salt iodine. Specifically, it can perform detection and analysis of water quality hardness, permanganate index, and salt iodine, realizing multi-purpose in one machine, greatly reducing the detection cost, and improving the detection efficiency. Description of the Drawings

[0019] Figure 1 is a schematic diagram of the internal structure of the present utility model.

[0020] Figure 2 is a schematic diagram of the back structure of the present utility model.

[0021] Figure 3It is a schematic structural diagram of the titration mechanism in the present utility model.

[0022] Figure 4 It is a schematic structural diagram of the multi-mode heating mechanism in the present utility model.

[0023] In the figure, 1. sample rack; 2. cooling mechanism; 3. multi-mode heating mechanism; 31. water tank; 32. heating cover; 33. heating position; 34. heating block; 35. water inlet; 4. titration mechanism; 41. sample addition hole; 42. sample addition needle seat; 43. sample addition needle fixing plate; 44. brushless motor; 45. magnet; 46. housing; 47. identification port; 48. placement rack; 5. three-axis robotic arm assembly; 51. X-axis translation mechanism; 52. Y-axis translation mechanism; 53. gripper; 6. color sensor. Specific embodiments

[0024] For the convenience of those skilled in the art to understand the present utility model, the specific embodiments of the present utility model will be described below with reference to the accompanying drawings.

[0025] As Figures 1 to 4 shown, the present utility model provides a multi-functional fully automatic water quality - salt iodine analyzer, which can realize the detection and analysis of water quality hardness, permanganate index, and salt iodine. It includes an analyzer body, on which a sample rack 1, a cooling mechanism 2, a multi-mode heating mechanism 3, a titration mechanism 4, a titration end point identification mechanism, and a three-axis robotic arm assembly 5 are provided. A control module and a detection and analysis module are also provided on the analyzer body, and the control module is electrically connected to the cooling mechanism 2, the multi-mode heating mechanism 3, the titration mechanism 4, the titration end point identification mechanism, and the three-axis robotic arm. The operation of the cooling mechanism 2, the multi-mode heating mechanism 3, the titration mechanism 4, the titration end point identification mechanism, and the three-week robotic arm is controlled by the control module. The detection and analysis module is connected to the titration end point identification mechanism for collecting and analyzing the detection results.

[0026] The three-axis robotic arm assembly 5 is arranged at the upper end of the analyzer body for transferring the sample to be measured. Specifically, the three-axis robotic arm is used to transfer the sample to be measured to the sample rack 1, the titration mechanism 4, the heating mechanism, and the cooling mechanism 2 for titration, heating, cooling, and returning of the sample.

[0027] In this embodiment, the three-axis robotic arm assembly 5 includes an X-axis translation mechanism 51, a Y-axis translation mechanism 52, and a Z-axis lifting mechanism. The X-axis translation mechanism 51 is connected to the Y-axis translation mechanism 52, and the Z-axis lifting mechanism is connected to the Y-axis translation mechanism 52. A gripper 53 is provided on the Z-axis lifting mechanism. Specifically, the X-axis translation mechanism 51 includes an X-axis translation motor, an X-axis additional guide rail, and a cantilever. The X-axis translation motor and the X-axis additional guide rail are arranged in parallel along the rear side plate. The rear end of the cantilever is simultaneously mounted on the slider of the X-axis translation motor and the slider of the X-axis additional guide rail. The cantilever is perpendicularly arranged to the X-axis additional guide rail. The Y-axis translation mechanism 52 is a Y-axis translation motor, and the Y-axis translation motor is mounted on the cantilever. The Z-axis lifting mechanism is a lead screw mechanism, and the gripper 53 is an electric gripper. Of course, the structure of the three-axis robotic arm to meet the above functions can be replaced according to the prior art.

[0028] The titration mechanism 4 is arranged at the front end of the sample rack 1. The titration end point recognition mechanism is correspondingly arranged with the titration mechanism 4 for recognizing the titration end point during the titration process of the titration mechanism 4. Specifically, the titration mechanism 4 includes a titration position and a reagent addition position. A magnetic stirring mechanism is arranged at the titration position, and a corresponding magnetic stirring rotor is arranged in the sample cup. The magnetic stirring mechanism includes a housing 46, a brushless motor 44, and a magnet 45. The housing 46 includes a titration tank, and the sample cup can be placed in the titration tank for titration. An identification port 47 is arranged at the rear of the titration tank, and the titration end point recognition mechanism is correspondingly arranged with the identification port 47. The titration end point recognition mechanism is set as a color sensor 6, and the model of the color sensor 6 is LR-W500. The titration end point is automatically recognized through the change of the solution color. Compared with the existing camera recognition, the memory space is greatly reduced. Specifically, a placement rack 48 is arranged on the housing 46, and the color sensor 6 is arranged on the placement rack 48. The magnet 45 is connected to the output end of the brushless motor 44 and is arranged at the lower part of the titration tank.

[0029] The reagent addition position includes a sample addition needle fixing plate 43 and a sample addition needle seat 42 perpendicularly arranged to the sample addition needle fixing plate 43. A sample addition hole 41 is arranged on the sample addition needle seat 42. The reagent tube passes through the sample addition hole for sample addition and titration. A driving mechanism is arranged at the reagent addition position, and the driving mechanism drives the reagent addition position to reciprocate horizontally. The driving mechanism includes a track, a horizontal slider, a driving motor, and a driving belt. The track is arranged on the bottom plate of the analyzer body. The horizontal slider is fixedly connected to the sample addition needle fixing plate 43 and is fixed on the driving belt. The driving belt is connected to the output end of the driving motor.

[0030] The multi-mode heating mechanism 3 includes a water tank 31, a heating cover 32, and a heating block 34. The heating block 34 is attached to the outer bottom wall of the water tank 31. The heating cover 32 is disposed within the water tank 31. A single-row heating position 33 is provided on the heating cover 32, which can effectively prevent the water droplets on the outer wall of the sample cup from falling into other sample cups and avoid cross-contamination. A water inlet 35 is provided on the water tank 31. The multi-mode heating mechanism 3 in this embodiment can perform water bath heating or non-water bath heating. When water bath heating is required, the water tank 31 is filled with water through the water inlet 35 for water bath heating. A corresponding temperature sensor is provided in the water tank 31 for measuring the water temperature. It can be used for the analysis of permanganate index. When non-water bath heating is performed, the water tank 31 does not need to be filled with water, and the sample to be tested in the sample cup can be heated to boiling, which can be used for the detection and analysis of salt iodine by redox titration method.

[0031] The sample rack 1 is arranged in parallel with the water tank 31, and the sample rack 1 is provided with several groups arranged in parallel. In this embodiment, the sample rack 1 is provided with 3 groups, and each group of sample racks 1 can hold 18 samples. The cooling mechanism 2 is disposed at the bottom of the sample rack 1. The cooling mechanism 2. The setting of the cooling mechanism 2 can be used for the detection and analysis of salt iodine during the redox titration process. The cooling mechanism 2 is specifically set as a semiconductor refrigerator with the model XD2030.

[0032] The above-described embodiments of the present invention do not constitute a limitation to the protection scope of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A multifunctional fully automatic water quality-salt iodine analyzer, characterized in that: The analyzer comprises an analyzer body, on which a sample rack (1), a cooling mechanism (2), a multi-mode heating mechanism (3), a titration mechanism (4), a titration end point recognition mechanism and a three-axis mechanical arm assembly (5) are arranged; the three-axis mechanical arm assembly (5) is arranged at the upper end of the analyzer body and is used for transferring samples to be tested; the titration mechanism (4) is arranged at the front end of the sample rack (1), and the titration end point recognition mechanism is arranged corresponding to the titration mechanism (4) and is used for identifying the titration end point during the titration process of the titration mechanism (4). identification; the multi-mode heating mechanism (3) comprises a water tank (31), a heating cover (32) and a heating block (34), the heating block (34) is in contact with the bottom outer wall of the water tank (31), the heating cover (32) is arranged in the water tank (31), a single row of heating positions (33) is arranged on the heating cover (32), and a water inlet (35) is arranged on the water tank (31); the sample rack (1) is arranged parallel to the water tank (31), and the cooling mechanism (2) is arranged at the bottom of the sample rack (1).

2. A multifunctional fully automatic water quality-salt iodine analyzer according to claim 1, characterized in that: The three-axis mechanical arm assembly (5) comprises an X-axis translation mechanism (51), a Y-axis translation mechanism (52) and a Z-axis lifting mechanism, wherein the X-axis translation mechanism (51) is connected to the Y-axis translation mechanism (52), the Z-axis lifting mechanism is connected to the Y-axis translation mechanism (52), and a gripper (53) is provided on the Z-axis lifting mechanism.

3. A multifunctional fully automatic water quality-salt iodine analyzer according to claim 1, characterized in that: The titration mechanism (4) comprises a titration position and a reagent addition position, the titration position is provided with a magnetic stirring mechanism, and a corresponding magnetic stirring rotor is provided in the sample cup.

4. A multifunctional fully automatic water quality-salt iodine analyzer according to claim 3, characterized in that: The magnetic stirring mechanism comprises a housing (46), a brushless motor (44) and a magnet (45); the housing (46) comprises a titration tank, an identification port (47) is arranged at the rear of the titration tank, and the titration endpoint identification mechanism is arranged corresponding to the identification port (47); the magnet (45) is connected to the output end of the brushless motor (44) and is arranged at the bottom of the titration tank.

5. A multifunctional fully automatic water quality-salt iodine analyzer according to claim 3, characterized in that: The reagent adding position comprises a sample adding needle fixing plate (43) and a sample adding needle seat (42) vertically arranged with respect to the sample adding needle fixing plate (43), and a sample adding hole (41) is arranged on the sample adding needle seat (42).

6. A multifunctional fully automatic water quality-salt iodine analyzer according to claim 5, characterized in that: The reagent adding station is provided with a driving mechanism, and the driving mechanism drives the reagent adding station to reciprocate horizontally.

7. A multifunctional fully automatic water quality-salt iodine analyzer according to claim 6, characterized in that: The driving mechanism comprises a track, a horizontal slider, a driving motor and a driving belt. The track is arranged on the bottom plate of the analyzer body. The horizontal slider is fixedly connected to the sample needle fixing plate (43) and fixed on the driving belt. The driving belt is connected to the output end of the driving motor.

8. A multifunctional fully automatic water quality-salt iodine analyzer according to claim 1 or 4, characterized in that: The titration endpoint recognition mechanism is configured as a color sensor (6).

9. A multifunctional fully automatic water quality-salt iodine analyzer according to claim 1, characterized in that: The cooling mechanism is configured as a semiconductor refrigerator, model XD2030.

10. A multifunctional fully automatic water quality-salt iodine analyzer according to claim 1, characterized in that: The sample racks (1) are arranged in groups arranged in parallel.

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