Colorimetric method detection device

Abstract

The utility model discloses a colorimetric method detection device, which belongs to the technical field of detection devices, and comprises a bag, a water inlet hose, a piezoelectric pump, a water outlet hose, a one-way valve, a signal generator and a colorimetric bottle, the bag is communicated with the water inlet hose, the water inlet hose is communicated with the piezoelectric pump, the piezoelectric pump is communicated with the water outlet hose, the one-way valve is fixedly connected with the colorimetric bottle, and the signal generator is connected with the colorimetric bottle. The colorimetric bottle is communicated with the water outlet hose, the signal generator is fixedly connected with the one-way valve, a reagent in the bag is pumped by the piezoelectric pump through the water inlet hose, conveyed through the water outlet hose and injected into the colorimetric bottle through the one-way valve, and the one-way valve enables the reagent to flow unidirectionally and prevents backflow. Meanwhile, the signal generator controls to start the piezoelectric pump and processes a signal transmitted from the colorimetric bottle, and in the colorimetric bottle, after the reagent and the to-be-detected liquid are mixed, the transmission amount of light is measured through the photoelectric equipment, so that the concentration of the solution is calculated, the operation steps are optimized, and human errors are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of concentration detection devices, in particular to a colorimetric detection device. Background Art

[0002] With the development of technology in fields such as chemical analysis, environmental monitoring and biotechnology, it is often necessary to record experimental data, generate reports and conduct analysis during the experiment. The concentration detection device is a commonly used detection device for liquid concentration detection, and the colorimetric method for testing concentration is a test method used by the detection device.

[0003] In the existing colorimetric test process, it is necessary to manually add the test reagent to the test liquid and mix the reagent by stirring to measure the comparison concentration.

[0004] At present, the accuracy of test results is greatly affected by the correctness of operating techniques, and the process is cumbersome and inefficient when a large number of tests are performed. The reagent components often contain toxic and harmful components and require strict management. Therefore, technicians in this field provide a colorimetric detection device to solve the problems raised in the above background. Utility Model Content

[0005] The purpose of the utility model is to provide a colorimetric detection device to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A colorimetric detection device comprises a capsule, a water inlet hose, a piezoelectric pump, a water outlet hose, a one-way valve, a signal generator and a colorimetric bottle. The capsule is connected to the water inlet hose, the water inlet hose is connected to the piezoelectric pump, the piezoelectric pump is connected to the water outlet hose, the one-way valve is firmly connected to the colorimetric bottle, the colorimetric bottle is connected to the water outlet hose, and the signal generator is firmly connected to the one-way valve.

[0008] By adopting the above technical solution, when in use, the reagent stored in the bag is extracted by the piezoelectric pump through the water inlet hose and transported through the water outlet hose, and accurately injected into the colorimetric bottle through the one-way valve. The design of the one-way valve ensures the one-way flow of the reagent to prevent backflow. At the same time, the signal generator monitors and controls the entire process, including starting the piezoelectric pump and processing the signal transmitted from the colorimetric bottle. In the colorimetric bottle, after the reagent is mixed with the liquid to be tested, the light transmittance is measured by a photoelectric device (such as a light emitting diode and a photoelectric receiving tube) to calculate the concentration of the solution. This not only optimizes the operating steps and reduces human errors, but also significantly improves the efficiency and accuracy of the test, making the device suitable for occasions that require fast and frequent testing.

[0009] Furthermore, a light emitting diode is installed on one side of the colorimetric bottle, and a photoelectric receiving tube is installed on the other side of the colorimetric bottle.

[0010] By adopting the above technical solution, in the colorimetric detection device, a light emitting diode (LED) is installed on one side of the colorimetric bottle, and a photoelectric receiving tube is installed on the other side. When working, the LED emits light through the liquid sample in the colorimetric bottle directly to the photoelectric receiving tube. This symmetrical installation method allows the liquid sample to accurately measure the transmittance or absorbance of light, and then calculate the concentration of specific chemical components in the liquid according to the change in absorbance. Based on the Beer-Lambert law, that is, the absorbance of the solution is proportional to the concentration of the solute, through automated reagent addition and optical detection, this device can quickly and accurately perform chemical analysis, and the effect achieved is to improve the detection speed and accuracy, which is suitable for experimental environments that require continuous or large-scale sample analysis.

[0011] Furthermore, the light emitting diode and the photoelectric receiving tube are symmetrically installed on the colorimetric bottle, the light emitting part of the light emitting diode is aligned with the receiving part of the photoelectric receiving tube, the light emitting diode and the signal generator are electrically connected, and the photoelectric receiving tube and the signal generator are electrically connected.

[0012] By adopting the above technical solution, in this colorimetric detection device, the light emitting diode (LED) and the photoelectric receiving tube are symmetrically installed on opposite sides of the colorimetric bottle to ensure that the light emitted by the LED can directly pass through the test liquid in the colorimetric bottle and be completely aligned with the photoelectric receiving tube. Both components are electrically connected to the signal generator, so that the signal generator can control the light-emitting moment of the LED and receive the light signal from the photoelectric receiving tube. Based on the Beer-Lambert law, by measuring the change in the intensity of the light passing through the liquid sample, the signal generator calculates the absorbance of the liquid and further analyzes the concentration of the target compound in the sample. This implementation optimizes the stability of the optical path and the accuracy of the measurement, so that the device can quickly and accurately perform quantitative analysis of chemical components.

[0013] Furthermore, a vibration motor is installed at the bottom of the colorimetric bottle, the vibration motor body is tightly connected to the colorimetric bottle, the output end of the vibration motor is transmission-connected to the colorimetric bottle, and the vibration motor is used to vibrate the liquid in the colorimetric bottle evenly.

[0014] By adopting the above technical solution, when the reagent is injected into the colorimetric bottle through the one-way valve and mixed with the liquid to be tested, the vibration motor is started, and the liquid is evenly mixed through high-frequency vibration to ensure that the reagent and the sample fully react, thereby improving the consistency and repeatability of the test, and reducing the errors that may be introduced by manual stirring. Mechanical vibration is used instead of manual stirring to achieve more uniform and effective mixing. Through this implementation method, the device can achieve the purpose of quickly and accurately analyzing liquid samples, thereby improving operating efficiency and analysis accuracy.

[0015] Furthermore, the colorimetric bottle is provided with scale lines, which are used to limit the amount of the liquid to be tested.

[0016] By adopting the above technical solution, in actual operation, the user can directly add liquid to the colorimetric bottle until the liquid level reaches the 10 ml mark, thereby ensuring that the liquid volume is consistent for each test. This design simplifies the operation steps and ensures the consistency and repeatability of the experimental data. The use of scale lines reduces the test errors caused by inaccurate amount of liquid added, improves the accuracy and reliability of the test results, and enables the device to be used in applications that require precise measurement and repeated testing. This not only improves the convenience of operation, but also ensures the standardization of experimental results.

[0017] Furthermore, the colorimetric bottle is made of a transparent material, and is provided with a accommodating cavity, which is connected to a one-way valve. The one-way valve is made of fluororubber, and is provided with a valve cavity, which is connected to the accommodating cavity. The one-way valve is provided with an elastic part, which is fastened to a valve ball and is located in the valve cavity.

[0018] By adopting the above technical solution, the colorimetric bottle and the one-way valve are connected by interference fit to ensure the sealing and stability of the structure. The one-way valve is made of fluororubber material with strong chemical resistance and has a valve chamber inside. An elastic member is installed in the valve chamber, which is tightly connected to the valve ball. During operation, when the liquid passes through the one-way valve, the pressure of the liquid will push the elastic member to move the valve ball, thereby allowing the liquid to flow into the colorimetric bottle in one direction. The valve ball will be closed when there is no pressure or pressure acts from the opposite direction to prevent the liquid from flowing back. The design of this one-way valve not only ensures the accurate delivery and mixing of the liquid, but also greatly improves the safety and reliability of the testing process, avoids leakage and contamination of the liquid, and is particularly suitable for application scenarios involving hazardous or sensitive chemicals.

[0019] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0020] The capsule is a flexible and contractible soft material with a volume of 13 ml. During the test, first add 10 ml of the water to be tested to the milliliter scale line on the colorimetric bottle. The signal generator detects that there is water in the bottle, starts the light-emitting diode and the photoelectric receiving tube to measure the light transmittance a. After the measurement is completed, the piezoelectric pump starts to work and pumps 0.12 ml of reagent into the colorimetric bottle through the one-way valve. The vibration motor at the bottom of the colorimetric bottle 7 shakes the liquid, or the liquid can be mixed back and forth manually. After mixing, the test device will start the light-emitting diode 9 and PD10 again to measure the light transmittance b at this time. According to ABS=log10(a / b), the absorbance at this time is obtained, thereby calculating the solution concentration at this time. After the calculation is completed, the system will prompt that the test is over. After the test is completed, the test water sample is poured out, and the colorimetric bottle is rinsed with clean water. A test process is completed, thereby simplifying the reagent addition steps, making it more convenient to carry to the test site for direct operation, improving the detection efficiency and effectively reducing the risk of leakage of harmful components in the reagent. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a top view of the overall structure of the utility model;

[0024] Figure 3 It is a schematic diagram of a vibration motor of the utility model;

[0025] Figure 4 It is a schematic diagram of the scale lines of the utility model;

[0026] Figure 5 It is a schematic diagram of a one-way valve of the utility model.

[0027] In the figure: 1, capsule; 2, water inlet hose; 3, piezoelectric pump; 4, water outlet hose; 5, one-way valve; 51, valve chamber; 52, elastic member; 53, valve ball; 6, signal generator; 7, colorimetric bottle; 71, light emitting diode; 72, photoelectric receiving tube; 73, vibration motor; 74, scale line; 75, accommodating chamber. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-5 , the utility model provides a technical solution:

[0030] A colorimetric detection device includes a capsule 1, a water inlet hose 2, a piezoelectric pump 3, a water outlet hose 4, a one-way valve 5, a signal generator 6 and a colorimetric bottle 7. The capsule 1 is connected to the water inlet hose 2, the water inlet hose 2 is connected to the piezoelectric pump 3, the piezoelectric pump 3 is connected to the water outlet hose 4, the one-way valve 5 is tightly connected to the colorimetric bottle 7, the colorimetric bottle 7 is connected to the water outlet hose 4, and the signal generator 6 is tightly connected to the one-way valve 5.

[0031] By adopting the above technical solution, when in use, the reagent stored in the capsule 1 is extracted by the piezoelectric pump 3 through the water inlet hose 2 and transported through the water outlet hose 4, and accurately injected into the colorimetric bottle 7 through the one-way valve 5. The design of the one-way valve 5 ensures the one-way flow of the reagent to prevent backflow. At the same time, the signal generator 6 monitors and controls the entire process, including starting the piezoelectric pump 3 and processing the signal transmitted from the colorimetric bottle 7. In the colorimetric bottle 7, after the reagent is mixed with the liquid to be tested, the light transmittance is measured by a photoelectric device (such as a light-emitting diode 71 and a photoelectric receiving tube 72), thereby calculating the concentration of the solution. This not only optimizes the operating steps and reduces human errors, but also significantly improves the efficiency and accuracy of the test, making the device suitable for occasions requiring rapid and frequent testing.

[0032] Furthermore, a light emitting diode 71 is installed on one side of the cuvette 7 , and a photoelectric receiving tube 72 is installed on the other side of the cuvette 7 .

[0033] By adopting the above technical solution, in the colorimetric detection device, a light emitting diode 71 (LED) is installed on one side of the colorimetric bottle 7, and a photoelectric receiving tube 72 is installed on the other side. When working, the LED emits light that passes through the liquid sample in the colorimetric bottle 7 directly to the photoelectric receiving tube 72. This symmetrical installation method allows accurate measurement of the transmittance or absorbance of the liquid sample to light, and then calculates the concentration of specific chemical components in the liquid according to the change in absorbance. Based on the Beer-Lambert law, that is, the absorbance of the solution is proportional to the concentration of the solute, through automated reagent addition and optical detection, this device can quickly and accurately perform chemical analysis, and the effect achieved is to improve the detection speed and accuracy, which is suitable for experimental environments that require continuous or large-scale sample analysis.

[0034] Furthermore, the light emitting diode 71 and the photoelectric receiving tube 72 are symmetrically installed on the colorimetric bottle 7, the light emitting part of the light emitting diode 71 faces the receiving part of the photoelectric receiving tube 72, the light emitting diode 71 and the signal generator 6 are electrically connected, and the photoelectric receiving tube 72 and the signal generator 6 are electrically connected.

[0035] By adopting the above technical solution, in this colorimetric detection device, the light emitting diode 71 (LED) and the photoelectric receiving tube 72 are symmetrically installed on the opposite sides of the colorimetric bottle 7 to ensure that the light emitted by the LED can directly pass through the test liquid in the colorimetric bottle 7 and be completely aligned with the photoelectric receiving tube 72. Both components are electrically connected to the signal generator 6, so that the signal generator 6 can control the light-emitting moment of the LED and receive the light signal from the photoelectric receiving tube 72. Based on the Beer-Lambert law, by measuring the change in the intensity of the light passing through the liquid sample, the signal generator 6 calculates the absorbance of the liquid and further analyzes the concentration of the target compound in the sample. This implementation optimizes the stability of the spectrum and the accuracy of the measurement, so that the device can quickly and accurately perform quantitative analysis of chemical components.

[0036] Furthermore, a vibration motor 73 is installed at the bottom of the colorimetric bottle 7. The body of the vibration motor 73 is firmly connected to the colorimetric bottle 7. The output end of the vibration motor 73 is transmission-connected to the colorimetric bottle 7. The vibration motor 73 is used to vibrate the liquid in the colorimetric bottle 7 evenly.

[0037] By adopting the above technical solution, when the reagent is injected into the colorimetric bottle 7 through the one-way valve 5 and mixed with the liquid to be tested, the vibration motor 73 is started, and the liquid is evenly mixed through high-frequency vibration to ensure that the reagent and the sample fully react, thereby improving the consistency and repeatability of the test, and reducing the error that may be introduced by manual stirring. Mechanical vibration is used instead of manual stirring to achieve more uniform and effective mixing. Through this implementation method, the device can achieve the purpose of quickly and accurately analyzing liquid samples, thereby improving operating efficiency and analysis accuracy.

[0038] Furthermore, the colorimetric bottle 7 is provided with scale lines 74, and the scale lines 74 are used to limit the amount of the liquid to be tested.

[0039] By adopting the above technical solution, in actual operation, the user can directly add liquid to the colorimetric bottle 7 until the liquid level reaches the 10 ml scale line 74, thereby ensuring that the liquid volume is consistent for each test. This design simplifies the operating steps and ensures the consistency and repeatability of the experimental data. The use of the scale line 74 reduces the test error caused by inaccurate addition of liquid, improves the accuracy and reliability of the test results, and enables the device to be used in applications that require precise measurement and repeated testing. This not only improves the convenience of operation, but also ensures the standardization of experimental results.

[0040] Furthermore, the colorimetric bottle 7 is made of a transparent material and is provided with a accommodating chamber 75, which is connected to the one-way valve 5. The one-way valve 5 is made of fluororubber and is provided with a valve chamber 51, which is connected to the accommodating chamber 75. The one-way valve 5 is provided with an elastic member 52, which is fastened to the valve ball 53 and is located in the valve chamber 51.

[0041] By adopting the above technical solution, the colorimetric bottle 7 and the one-way valve 5 are connected by interference fit to ensure the sealing and stability of the structure. The one-way valve 5 is made of fluororubber material with strong chemical resistance, and a valve chamber 51 is provided inside. An elastic member 52 is installed in the valve chamber 51, and the elastic member 52 is tightly connected to the valve ball 53. During operation, when the liquid passes through the one-way valve 5, the pressure of the liquid will push the elastic member 52 to move the valve ball 53, thereby allowing the liquid to flow into the colorimetric bottle 7 in one direction. The valve ball 53 will be closed when there is no pressure or pressure acts from the opposite direction to prevent the liquid from flowing back. The design of this one-way valve 5 not only ensures the accurate delivery and mixing of the liquid, but also greatly improves the safety and reliability of the test process, avoids leakage and contamination of the liquid, and is particularly suitable for application scenarios involving dangerous or sensitive chemicals.

[0042] The working principle of the utility model is as follows: the capsule 1 is a flexible and contractible soft material with a volume of 13 ml. When testing, first add 10 ml of the water to be tested to the colorimetric bottle 7 until it is flush with the milliliter scale line 74. The signal generator 6 detects that there is water in the bottle, starts the light-emitting diode 71 and the photoelectric receiving tube 72 to measure the light flux a. After the measurement is completed, the piezoelectric pump 3 starts to work, pumps 0.12 ml of reagent into the colorimetric bottle 7 through the one-way valve 5, and the vibration motor 73 at the bottom of the colorimetric bottle 77 mixes the liquid. The liquid can also be mixed back and forth manually. After mixing, the test device will start the light-emitting diode 719 and PD10 again to measure the light flux b at this time. According to ABS=log10(a / b), the absorbance at this time is obtained, thereby calculating the solution concentration at this time. After the calculation is completed, the system will prompt the end of the test. After the test is completed, the test water sample is poured out, and the colorimetric bottle 7 is rinsed with clean water. A test process is completed, thereby simplifying the reagent addition steps, making it more convenient to carry to the test site for direct operation, improving the detection efficiency and effectively reducing the risk of leakage of harmful components in the reagent.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A colorimetric detection device, characterized in that: The detection device comprises a capsule (1), a water inlet hose (2), a piezoelectric pump (3), a water outlet hose (4), a one-way valve (5), a signal generator (6) and a colorimetric bottle (7); the capsule (1) is connected to the water inlet hose (2), the water inlet hose (2) is connected to the piezoelectric pump (3), the piezoelectric pump (3) is connected to the water outlet hose (4), the one-way valve (5) is firmly connected to the colorimetric bottle (7), the colorimetric bottle (7) is connected to the water outlet hose (4), and the signal generator (6) is firmly connected to the one-way valve (5).

2. A colorimetric detection device according to claim 1, characterized in that: A light emitting diode (71) is installed on one side of the cuvette bottle (7), and a photoelectric receiving tube (72) is installed on the other side of the cuvette bottle (7).

3. A colorimetric detection device according to claim 2, characterized in that: The light emitting diode (71) and the photoelectric receiving tube (72) are symmetrically mounted on the colorimetric bottle (7), the light emitting portion of the light emitting diode (71) is aligned with the receiving portion of the photoelectric receiving tube (72), the light emitting diode (71) is electrically connected to the signal generator (6), and the photoelectric receiving tube (72) is electrically connected to the signal generator (6).

4. A colorimetric detection device according to claim 3, characterized in that: A vibration motor (73) is installed at the bottom of the colorimetric bottle (7); the body of the vibration motor (73) is tightly connected to the colorimetric bottle (7); the output end of the vibration motor (73) is transmission-connected to the colorimetric bottle (7); and the vibration motor (73) is used to vibrate the liquid in the colorimetric bottle (7) uniformly.

5. A colorimetric detection device according to claim 4, characterized in that: The colorimetric bottle (7) is provided with scale lines (74), and the scale lines (74) are used to limit the amount of liquid to be added.

6. A colorimetric detection device according to claim 5, characterized in that: The colorimetric bottle (7) is made of a transparent material. A receiving chamber (75) is provided on the colorimetric bottle (7). The receiving chamber (75) is communicated with the one-way valve (5). The one-way valve (5) is made of a fluororubber material. A valve chamber (51) is provided on the one-way valve (5). The valve chamber (51) is communicated with the receiving chamber (75). An elastic member (52) is provided on the one-way valve (5). The elastic member (52) is fixedly connected to the valve ball (53). The elastic member (52) is located in the valve chamber (51).

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