Detector with qualitative characteristic color recognition and quantitative absorbance measurement

Abstract

The utility model discloses a detector with qualitative characteristic color recognition and quantitative absorbance measurement, and mainly relates to the field of luminosity detectors. Comprising a box body and a box cover, a panel for closing a box opening of the box body is fixed at the box opening, a circular opening is formed in the panel, a rotating frame matched with the circular opening is arranged in the circular opening, inserting grooves are annularly arrayed in the top of the rotating frame at equal intervals, detection pools are movably inserted into the inserting grooves, and detection openings penetrating through the inserting grooves in the radial direction of the rotating frame are formed in the bottoms of the inserting grooves; a color sensor and a light source are arranged on the peripheral side of the rotating frame corresponding to the height of the detection opening, a light intensity sensor matched with the light source is arranged on the inner ring of the rotating frame, and the rotating frame has a rotating stroke rotating from the color sensor to the light source. The device has the beneficial effects that the device has the functions of qualitative characteristic color recognition and quantitative absorbance measurement, realizes double rapid detection of qualitative and quantitative detection, and solves the problems that a spectrophotometric method is not easy to judge by naked eyes and an instrument method is easy to generate false positive.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of photometric detector, specifically is a detection instrument with qualitative identification of characteristic color and quantitative measurement of absorbance. BACKGROUND

[0002] The ultraviolet visible spectrophotometry is the classical commonly used rapid detection method, and the traditional ultraviolet visible spectrophotometer adopts deuterium lamp and tungsten lamp to provide full wave band light source to realize full wave band scanning in combination with grating spectrometry technology to find the maximum absorption wavelength, and qualitative detection is assisted. Even so, the method is still not good in qualitative effect due to its relatively simple spectrum, and is often only used for quantitative detection of known substances.

[0003] In the actual sample detection process, the non-specific sample matrix interference is often encountered, and the non-specific interference causes non-characteristic photometric absorption. If the color of the reaction solution is not characterized and qualitatively judged, the direct measurement of the photometric value for quantitative detection is easy to cause false positive results. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a detection instrument with qualitative identification of characteristic color and quantitative measurement of absorbance, which has the functions of qualitative identification of characteristic color and quantitative measurement of absorbance, realizes dual rapid detection of qualitative and quantitative, and solves the problems of not easy to judge by naked eye in photometric method and easy to cause false positive results in instrument method.

[0005] The utility model realizes the above-mentioned purpose by the following technical scheme:

[0006] A detection instrument with qualitative identification of characteristic color and quantitative measurement of absorbance, comprising a detection box, the detection box comprises a box body and a box cover hinged on one side, a panel is fixed at the box opening of the box body to close it, a circular port is arranged on the panel, a rotating frame matched with the circular port is arranged in the circular port, a plurality of insertion slots are arranged at the top of the rotating frame in equal distance, a detection pool is movably inserted into each insertion slot, a detection port is arranged at the bottom of each insertion slot and penetrates the rotating frame in the radial direction, a color sensor and a light source are arranged at the height of each detection port on the circumferential side of the rotating frame, a light intensity sensor is arranged in the inner ring of the rotating frame and matched with the light source, and the rotating frame has a rotating stroke from the color sensor to the light source.

[0007] The rotating frame comprises a rotating disc, an annular frame and a sealing plate, the sealing plate is matched with the inner ring of the annular frame, the sealing plate is fixed on the top side of the inner ring of the annular frame, the top surface of the annular frame is coplanar with the panel, the annular frame comprises an inner cylinder and an outer cylinder which are integrally formed and coaxially arranged inside and outside, the detection port is arranged at the bottom side of the inner cylinder and the outer cylinder, the rotating disc has a rotating stroke, the edge of the rotating disc is provided with a ring-shaped bottom groove coaxial with the rotating disc, and the bottom side of the inner cylinder and the outer cylinder is respectively connected and fixed with the groove wall top side of the ring-shaped bottom groove.

[0008] The inner wall top side of the inner cylinder is provided with an annular step groove, the sealing plate is circular and corresponds in size to the step groove, the surface of the inner cylinder protrudes and is provided with a plurality of groups of inner ribs, each group of inner ribs has two inner ribs, and the gap between the two inner ribs forms a positioning groove, and the bottom surface of the sealing plate is provided with a protruding strip corresponding to the positioning groove.

[0009] The mounting bracket below the panel includes an integrally formed bottom plate, a driving shaft and a rotating shaft are rotatably mounted on the bottom plate, the top end of the rotating shaft is fixed to the bottom of the rotating frame, the bottom end of the rotating shaft is provided with a driven pulley below the bottom plate, the driving shaft is driven by a stepping motor, the bottom end of the driving shaft is fixedly provided with a driving pulley below the bottom plate, and a synchronous belt is wound between the driving pulley and the driven pulley.

[0010] The bottom plate is integrally formed with a hanging plate on each side of one end thereof, and the top side of the hanging plate is fixed to the panel.

[0011] The box cover is provided with a display screen.

[0012] The panel is integrally provided with a loudspeaker, a cooling fan, a printer, a network port, a USB interface and a DC interface.

[0013] The height of the detection pool is 1-5 cm longer than the depth of the insertion slot.

[0014] The detection pool is a transparent container with a rectangular cross section, and the shape of the insertion slot corresponds to the detection.

[0015] Compared with the prior art, the beneficial effects of the present application are as follows:

[0016] Compared with the traditional ultraviolet-visible spectrophotometer, the structure is simpler, more portable and stable, and more suitable for field rapid detection. Moreover, the color difference recognition qualitative detection function is added, the RGB color difference recognition is combined with the LED monochromatic light source photometric detection, and a rapid detection instrument with characteristic color recognition qualitative and absorbance measurement quantitative functions is developed. On the basis of ensuring the portability and stability of the instrument, qualitative and quantitative dual rapid detection is realized. The problems of difficulty in judging by the naked eye and false positive of the instrument are solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the overall schematic view of the present application.

[0018] Figure 2 is the rotating frame part schematic view of the present application.

[0019] Figure 3 is the inverted schematic view of the rotating frame of the present application.

[0020] Figure 4 is the component split schematic view of the utility model.

[0021] Figure 5 is the component split schematic view of the utility model rotating frame assembly.

[0022] The reference signs shown in the drawings:

[0023] 1, box; 2, box cover; 3, panel; 4, play hole; 5, heat dissipation hole; 6, printer; 7, bottom plate; 8, hanging plate; 9, driving shaft; 10, driving pulley; 11, rotating shaft; 12, driven pulley; 13, slot; 14, detection pool; 15, rotating disc; 16, annular frame; 17, sealing plate; 18, annular bottom groove; 19, step groove; 20, inner rib; 21, detection port; 22, color sensor; 23, light source; 24, light intensity sensor; 25, zero position switch. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and not used to limit the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the present application.

[0025] The instruments, reagents, materials and the like involved in the following examples are all conventional instruments, reagents, materials and the like existing in the prior art if not specifically stated, which can be obtained through regular commercial channels. The experimental methods, detection methods and the like involved in the following examples are all conventional experimental methods, detection methods and the like existing in the prior art if not specifically stated.

[0026] Embodiment:

[0027] Including detection box, the detection box adopts the open and close box body 1 structure of tool box style, and is convenient to carry and operates. The detection box includes box 1 and box cover 2, and one side of the box 1 and the box cover 2 is hinged, a lock catch is arranged between the side, away from the hinge, of the box 1 and the box cover 2, the box 1 adopts the structure of sunken groove and has a box mouth, a panel 3 is fixed at the box mouth, and the periphery of the panel 3 is fixedly connected with the box 1 by screw members, to realize the closure of the internal space of the box 1.

[0028] The box 1 is provided with a loudspeaker, a cooling fan and a printer 6, the panel 3 is provided with a play hole 4 corresponding to the loudspeaker, a heat dissipation hole 5 corresponding to the cooling fan and a mounting position corresponding to the printer 6, so as to realize the corresponding functions and achieve the integrated operation of portability.

[0029] The box cover 2 is provided with a 10.1-inch liquid crystal display screen, to realize the display of data.

[0030] The panel 3 is integrated with a network port, a USB interface and a DC interface.

[0031] The box 1 is also provided with a detection mechanism.

[0032] The detection mechanism comprises a mounting bracket, which is a metal bracket, and is used for loading other components and fixedly installed below the panel 3.

[0033] The bottom plate 7 is rotatably installed with a rotating shaft 11 at one end away from the driving shaft 9.

[0034] The rotating shaft 11 is rotatably installed with a rotating shaft 11 at one end away from the driving shaft 9.

[0035] Specifically, in order to facilitate processing and assembly and realize modular component design, the rotating frame specifically comprises a rotating disc 15, an annular frame 16 and a sealing plate 17.

[0036] The rotating disc 15 is circular and coaxial with the top end of the rotating shaft 11, the rotating disc 15 adopts a closed structure, the rotating disc 15 is circular to realize the closure of the bottom of the whole rotating frame, the edge of the rotating disc 15 is provided with an annular bottom groove 18 coaxial with the rotating disc 15, the annular bottom groove 18 is used to form the bottom of the insertion groove 13 and support the bottom of the detection pool 14, the annular frame 16 is an annular structure with an outer diameter equal to that of the rotating disc 15, the annular frame 16 includes an inner cylinder and an outer cylinder in a sleeved manner, the inner wall of the inner cylinder is provided with an annular step groove 19 at the top side, the sealing plate 17 is circular and corresponds in size to the step groove 19, when the edge of the bottom surface of the sealing plate 17 falls on the step groove 19, the top surface of the sealing plate 17 is coplanar with the top surface of the annular frame 16 (that is, the slot of the insertion groove 13), which is beautiful, dustproof and shields the internal components (the lower part is provided with a light intensity sensor 24 and a circuit and other components).

[0037] The inner cylinder and the outer cylinder are equidistantly provided with insertion grooves 13 in annular array, the insertion grooves 13 pass through the annular frame 16 from top to bottom, so that the annular frame 16 is a straight column structure convenient for processing, the bottom side of the annular frame 16 is provided with a detection port 21 corresponding to each insertion groove 13, the detection port 21 is located at the bottom side of the inner cylinder and the outer cylinder and constitutes a tooth-shaped structure, which is convenient for processing compared with a hole structure, and the bottom sides of the inner cylinder and the outer cylinder are respectively connected and fixed with the groove wall top side of the annular bottom groove 18 to obtain a complete insertion structure.

[0038] The outer side of the annular frame 16 is provided with a color sensor 22 fixed relative thereto, the color sensor 22 includes a camera, an RGB sensor and other devices capable of identifying color difference, and the detection head of the color sensor 22 is arranged towards the annular frame 16.

[0039] The height of the detection port 21 corresponds to the height of the detection head of the color sensor 22, the position number of the detection port 21 corresponds to that of the insertion groove 13, each detection port 21 penetrates through one insertion groove 13, so that the color sensor 22 can identify the color of the sample in the detection pool 14 located in the corresponding insertion groove 13, and can identify the color of the sample in the detection pool 14 located in the corresponding insertion groove 13 by setting a threshold value and identifying the color not meeting the threshold value.

[0040] The outer side of the annular frame 16 is further provided with a light source 23 fixedly installed relative thereto, the light source 23 has a light path emitting in the radial direction of the annular frame 16 at the height corresponding to the detection port 21, the light path can penetrate through the corresponding detection port 21 and pass through the sample in the detection pool 14 to realize the detection of the sample.

[0041] The inner ring of the ring-shaped frame 16 is fixed with a light intensity sensor 24 for identifying the light path of the light source 23.

[0042] The detection principle is that the light source 23 emits light of a specified wavelength, the light passes through the detection port 21 and irradiates on the light intensity sensor 24 after passing through the detection pool 14, and the content of the substance is determined by the intensity of the light, and the content detection is completed.

[0043] The rotation direction of the rotating disc 15 is from the color sensor 22 to the light source 23, so that the sample first passes through the color sensor 22 and then is subjected to content detection.

[0044] The distance between the detection head of the color sensor 22 and the light path of the light source 23 can be provided with 3-8 detection ports 21, so as to give the system sufficient feedback time.

[0045] One end of the bottom plate 7 is fixed with a hanging plate 8 integrally formed thereon, and the top side of the hanging plate 8 is provided with a right-angle bending and is fixed with a mounting bracket through a reserved mounting hole and a screw.

[0046] A zero position switch 25 is also mounted on the bottom plate 7, and the zero position switch 25 is used for feedback of the initial zero position of the rotating disc 15.

[0047] Keys for controlling the detection mechanism are mounted on the panel 3, and the keys can be elastic keys or touch keys. The keys include a reset key or a zero position key for cooperating with the zero position switch 25 to start the homing of the initial position.

[0048] Based on the detection instrument, the working principle and operation method are as follows:

[0049] The machine is started, and the rotating disc 15 is rotated to the initial zero position through the cooperation of the zero position switch 25, so as to ensure the positioning before each detection and eliminate the error caused by the step loss in the movement process.

[0050] The sample is placed in the detection pool 14, and the detection pool 14 is inserted into the slot 13.

[0051] The rotating disc 15 is rotated, and the detection port 21 corresponding to the sample to be detected is first moved to the color sensor 22, and the channel image is collected in sequence, the image is uploaded, and the main control board discriminates whether the reagent color is correct through an algorithm, if the reagent color is abnormal, a prompt is made, and if the reagent is normal, the normal detection program is entered;

[0052] The rotating disc 15 is continuously rotated, and the detection port 21 corresponding to the sample to be detected is moved to the light source 23, the light source 23 emits light of a specified wavelength, the light passes through the light guide hole and irradiates on the light intensity sensor 24 after passing through the detection pool 14, and the content of the substance is determined by the intensity of the light.

[0053] The instrument is rotated by a turntable 15, and color recognition and content detection are completed in succession, which greatly reduces invalid data caused by wrong reagent, invalid reagent or wrong project selection.

[0054] The advantages of the instrument in use include:

[0055] 1. The RGB color difference recognition module is added to detect the R, G and B values of the colored reaction solution. If the values meet the expected range, photometric measurement is performed for quantitative detection. If the values do not meet the expected range, it is prompted that the sample interference is too large, and the sample is not suitable for measurement or the sample processing method needs to be improved.

[0056] 2. For projects that do not require specific reagent reactions, a blind screening mode can be established. After the RGB range is recognized, the project is compared with the preset range to determine the project, and then photometric quantitative measurement is performed.

[0057] 3. The RGB color difference recognition module uses image acquisition and pattern recognition to calculate the RGB values of the image.

[0058] 4. The photometric measurement module uses a LED multi-wavelength cold light source 23 and a photoelectric detector structure to realize the detection of absorbance.

[0059] 5. The panel 3 has a printing function, which can print at any time. It also has functions such as heat dissipation, sound emission, network port, USB interface, DC interface, etc., which can meet various application requirements and facilitate timely and multi-channel processing of data.

[0060] 6. The tool box is convenient to carry, and the structure of the display screen on the lower panel 3 makes the application more convenient.

Claims

1. A detector with both characteristic color recognition qualitative and absorbance measurement quantitative, characterized in that, The utility model provides a detection box, the detection box includes a box body and a box cover which are hinged on one side, a panel is fixed at the box opening of the box body and closes it, a circular port is arranged on the panel, a rotating frame is arranged in the circular port, a plurality of insertion grooves are arranged on the top of the rotating frame in an equidistant array, a detection pool is movably inserted into the insertion grooves, a detection port is arranged at the bottom of the insertion grooves and penetrates the rotating frame radially, a color sensor and a light source are arranged on the side of the rotating frame corresponding to the detection port, a light intensity sensor is arranged on the inner ring of the rotating frame and matched with the light source, and the rotating frame rotates from the color sensor to the light source.

2. The detection instrument with both the identification and the qualitative and the absorbance measurement quantitative of the characteristic color according to claim 1, characterized in that, The rotating frame comprises a rotating disc, an annular frame and a sealing plate, the sealing plate is matched with the inner ring of the annular frame, the sealing plate is fixed to the top side of the inner ring of the annular frame, the top surface of the annular frame is coplanar with the panel, the annular frame comprises an inner cylinder and an outer cylinder which are integrally formed and coaxially arranged inside and outside, the detection port is arranged at the bottom side of the inner cylinder and the outer cylinder, the rotating disc has a rotating stroke, the edge of the rotating disc is provided with a ring-shaped bottom groove which is coaxial with the rotating disc, and the bottom sides of the inner cylinder and the outer cylinder are respectively fixedly connected with the top sides of the groove walls of the ring-shaped bottom groove.

3. The detection instrument with both the identification and the qualitative and the absorbance measurement quantitative of the characteristic color according to claim 2, characterized in that, The inner wall of the inner cylinder is provided with a ring-shaped stepped groove on the top side, the sealing plate is circular and corresponds in size to the stepped groove, the surface of the inner cylinder is provided with a plurality of groups of inner ribs, each group of inner ribs comprises two inner ribs, and the gap between the two inner ribs forms a positioning groove, and the bottom surface of the sealing plate is provided with a protruding strip corresponding to the positioning groove.

4. The detection instrument with both the identification and the qualitative and the absorbance measurement quantitative of the characteristic color according to claim 1, characterized in that, A mounting bracket is fixed below the panel, the mounting bracket comprises an integral bottom plate, a driving shaft and a rotating shaft are rotatably mounted on the bottom plate, the top end of the rotating shaft is fixed to the bottom of the rotating frame, the bottom end of the rotating shaft is provided with a driven pulley below the bottom plate, the driving shaft is driven by a stepping motor, the bottom end of the driving shaft is fixedly installed with a driving pulley below the bottom plate, and a synchronous belt is wound between the driving pulley and the driven pulley.

5. The detection instrument with both the identification and the qualitative and the absorbance measurement quantitative of the characteristic color according to claim 4, characterized in that, Two hanging plates are respectively fixed on both sides of one end of the bottom plate and integrally formed with the bottom plate, and the top side of the hanging plate is fixed with the panel.

6. The detection instrument with both the identification and the qualitative and the absorbance measurement quantitative of the characteristic color according to claim 1, characterized in that, A display screen is installed on the box cover.

7. The detection instrument with both the identification and the qualitative and the absorbance measurement quantitative of the characteristic color according to claim 1, characterized in that, A loudspeaker, a cooling fan, a printer, a network port, a USB interface and a DC interface are integrally installed on the panel.

8. The detection instrument with both the identification and the qualitative and the absorbance measurement quantitative of the characteristic color according to claim 1, characterized in that, The height of the detection pool is 1-5 cm longer than the depth of the insertion groove.

9. The detection instrument with both the identification and the qualitative and the absorbance measurement quantitative of the characteristic color according to claim 1, characterized in that, The detection pool is a transparent container with a rectangular cross section, and the shape of the insertion groove corresponds to the detection pool.

Images