CN212207086U - Spectrophotometer for batch detection - Google Patents

Abstract

The utility model provides a spectrophotometer for detect in batches, belongs to the check out test set field, including optical path system, a plurality of optical path system that the word was arranged do not is provided with conveyer belt and rack, use optical path system to be provided with a plurality of cuvettes according to equal distance as the symmetry axis on conveyer belt and the rack, the conveyer belt top is provided with annotates liquid station and a plurality of detection station, the conveyer belt top is provided with emptys the station, washs the station, dry station and preparation station, it is provided with the notes liquid ware to annotate liquid station top, emptys the station, washs the station, dry station below is provided with the liquid collecting tray respectively, purger and desicator, the utility model discloses reducible or eliminate the touch frequency of cuvette, improve the accuracy of monochromatic light wavelength, reduce the residual composition of detection liquid on the cuvette for detection speed, reduce the detection cost.

Description

Spectrophotometer for batch detection

Technical Field

The utility model relates to a spectrophotometer, in particular to spectrophotometer for detect in batches belongs to the check out test set field.

Background

Methods for identifying the presence of a substance by using an absorption spectrum specific to the substance (qualitative analysis), or measuring the content of a substance by using the degree of absorption of light of a certain wavelength by a substance (quantitative analysis), are called spectrophotometry. The usual wavelength ranges are: (1) 200-380 nm ultraviolet light region, (2) 380-780 nm visible light region, and (3) 2500-25000 nm infrared light region. The instrument is ultraviolet spectrophotometer, visible spectrophotometer (or colorimeter), infrared spectrophotometer or atomic absorption spectrophotometer. When light passes through a solution of a substance, the intensity of transmitted light is reduced, a part of the light is reflected or scattered on the surface of the solution, and only a part of the light absorbed by the substance constituting the solution is transmitted through the solution. The absorption spectra of different substances are different, and therefore, from the absorption spectra, the content of the substance in the solution can be detected.

The existing spectrophotometer adopts a light source which can generate a plurality of wavelengths, and a series of light splitting devices are used for generating the light source with specific wavelength, after the light penetrates through a tested sample, partial light is absorbed, and the light absorption value of the sample is calculated, so that the light absorption value is converted into the concentration of the sample. The absorbance of the sample is proportional to the concentration of the sample. The selective absorption wavelength of a substance to light, and the corresponding absorption coefficient, are the physical constants of that substance. When the absorption coefficient of a pure substance under a certain condition is known, the sample can be prepared into a solution under the same condition, and the absorption degree of the sample is measured, so that the content of the substance in the sample can be calculated by using the formula.

Colorimetric analysis uses a cuvette, which is roughly divided into a quartz cup, a glass cup and a plastic cup according to the material. The type of cuvette may be determined from the analysis liquid.

Fig. 10 is a schematic structural diagram of an existing dual optical path system, in which one of light sources is emitted through a grating 102 according to a light source 101 with a certain wavelength, and then monochromatic light is uniformly divided into left and right beams by a beam splitter 103, which are respectively irradiated on a reference liquid cuvette 104 and a liquid cuvette 107, after the incident light comes out from the reference liquid cuvette 104 and the liquid cuvette 107, after passing through different liquids, part of the light is absorbed by liquid in a light cup, the known light absorption rate of the reference liquid and the known light absorption rate of the liquid to be detected are respectively detected by a detector 105, blank deduction and the like are performed, and finally, a result is displayed on a display 106.

At present, monochromatic light of a light source displayed in a laboratory is adjusted to be monochromatic light with a required wavelength by using the grating 102, however, in actual operation, monochromatic light with a certain wavelength generated by adjustment is not good in monochromaticity in the adjustment process, and finally, the reliability of a detection result of liquid to be detected is deteriorated.

In addition, in multi-component solution analysis, the existing spectrophotometer needs multiple multi-wavelength measurement, the operation is complex and tedious, the consumed time is long, and the error of multiple adjustment machinery of the optical path of the grating is increased, so that the persuasion of the analysis result is reduced.

In addition, because in the current operation, the cuvette needs to be manually taken out of the spectrophotometer to be filled with the sample to be detected, and the sample to be detected needs to be washed every time the sample to be detected is added. Because the cuvette is made of special materials, although two opposite surfaces projected by light cannot be touched, the detection error is introduced because the cuvette can be worn or contaminated by fingerprints and other traces on the detection surface of the cuvette after long-term repeated operation. In order to improve the accuracy of the detection result, after the device is used for a period of time, a new cuvette appliance needs to be replaced, the consistency among the cuvettes is affected, and the error of the detection result is increased. Because the cuvette utensil has higher requirement on transmittance, the cuvette utensil is made of special materials and is frequently replaced, and the detection time, the detection cost and the detection expense of the cuvette utensil are inevitably increased. Furthermore, although the cuvette is washed several times before and after the test, it is difficult to achieve the desired condition in daily operation, and liquid remains, which also causes a distortion of the test result. In order to overcome the above-mentioned problems, manufacturers such as shimadzu corporation in japan have produced spectrophotometers capable of automatic operation, in which the cuvette is cleaned by using a cleaning solution having a volume 20 times that of the cuvette and the amount of the liquid to be detected, and the cuvette is repeatedly cleaned, so that although the residual liquid component is reduced, the waste of the liquid to be detected and the cleaning solution is caused, the cleaning is repeated, much time is spent, the detection speed is affected, the detection time is wasted, and the detection cost is increased, and how to obtain the detection result quickly at a low cost state without affecting the accuracy of the detection result is a problem of the current spectrophotometers.

Disclosure of Invention

To a great deal of influences that present spectrophotometer exists in the use treat the factor of test solution testing result accuracy and increase detection cost, the utility model provides a spectrophotometer for detect in batches, its purpose reduces or eliminates the touch frequency of cell, improves the accuracy of monochromatic light wavelength, has improved the cleaning method of cell for detection speed reduces the detection cost, improves the rate of accuracy of testing result, has reduced big batch individual sample detection work load. The design scheme can not only carry out conventional spectral analysis of specific wavelength, but also be applied to a multi-wavelength coefficient method or a multi-component multi-wavelength method for detection.

The technical scheme of the utility model is that: a spectrophotometer for batch detection comprises a light path system, the light path system comprises a light source, a light beam splitter for dividing the light source into multiple beams, a cuvette for containing liquid to be detected, a reference liquid cuvette for containing reference liquid, a detector for performing light absorption detection and comparison on the liquid to be detected and the reference liquid, a computer host for calculating and displaying detection data, and a ratio display, the spectrophotometer comprises a plurality of rows of detection systems and a plurality of liquid injection systems, the detection systems are arranged in one row, the plurality of rows of detection systems have the same structure and respectively comprise a plurality of paths of same light path systems, a stepping conveyor belt is arranged in the plurality of rows of detection systems in the vertical direction, each row of detection systems comprises one to-be-detected liquid cuvette on the light path system and the stepping conveyor belt, the stepping conveyor belt is provided with a plurality of to-be-detected liquid cuvettes, each light path system is provided with a reference liquid cuvette corresponding to-be-detected, the device comprises a liquid injection system, a liquid injection system and a spectrophotometer, wherein a stepping gear belt is arranged in the liquid injection system, the front end part of the stepping conveyor belt and the stepping gear belt are in a cross structure, the stepping gear belt is positioned above the front end part of the stepping conveyor belt, a washing liquid station, a liquid injection station and a liquid injector cleaning station are arranged above the stepping gear belt, the liquid injection station is provided with a liquid injector through a liquid injector support, the lower part of the stepping conveyor belt comprises a plurality of stations including cleaning and drying stations, the cleaning and drying stations are respectively provided with corresponding cleaners and dryers, the intervals of a plurality of rows of detection systems are equal, the stepping intervals of the stepping conveyor belt are equal to the intervals of a plurality of rows of;

furthermore, a light source of the light path system adopts a modularized light source with fixed wavelength, the modularized light source enters a beam splitter through grating incident light, the light emitted by the beam splitter is divided into two beams of light with opposite directions, the two beams of light respectively pass through a to-be-detected liquid cuvette or a reference liquid cuvette and irradiate to detectors on two sides, the detectors are connected with a computer host, and a plurality of reference liquid cuvettes are respectively arranged on respective racks;

further, respective waste liquid cylinders are respectively arranged below the tail end of the stepping conveyor belt, below the stepping conveyor belt cleaning and drying station and below the stepping gear belt;

the liquid injector is arranged on the belt of the stepping gear, the liquid injector is of a lifting three-layer tubular structure, each pipe in the three-layer tubular structure is of an independent lifting structure, the lower end of the outer-layer pipe is a pipe which is conical and is provided with an opening and used for injecting liquid to be detected, the middle pipe is a lifting water pipe, a lifting air pipe is arranged in the lifting water pipe, the lower end part of the lifting air pipe extends to the opening part of the conical pipe, a lifting plug for sealing the lower end of the opening of the conical pipe is arranged at the lower end part of the lifting air pipe, and the lifting water pipe and the lifting air pipe are respectively provided with a water outlet hole and;

furthermore, a lifting type cleaner and a dryer are arranged at the lower end of the cleaning station, the cleaner comprises a spray pipe and a solvent pipe, the dryer comprises an air injection pipe, the bottom ends of the spray pipe, the solvent pipe and the air injection pipe are arranged on a support plate, the support plate is arranged at the rod end of the synchronous cylinder rod, electromagnetic valves are respectively arranged in a cleaning water pipe 47, a solvent pipeline 48 and an air path of a liquid inlet pipe and an air inlet pipe of the spray pipe, the solvent pipe and the air injection pipe, holes are respectively formed in the upper ends and the peripheries of the spray pipe, the solvent pipe and the air injection pipe, the interior of the colorimetric ware to be tested is cleaned and dried, and the electromagnetic valves are electrically connected with;

furthermore, a plurality of light shields are arranged on two sides of the light path system, each light shield comprises a manual light shield, an automatic light shield and a fixed light shield, the manual light shield and the automatic light shield are respectively arranged on the peripheries of the reference liquid cuvette and the liquid cuvette to be detected, the fixed light shields are arranged on the peripheries of other light paths, during detection, the automatic light shields move to the periphery of the detection station stepping conveyor belt to shield light, and when the stepping conveyor belt moves forwards, the automatic light shields move to the periphery of the detection station stepping conveyor belt;

furthermore, a detection liquid sample bottle to be sucked is arranged below one side of the stepping gear belt, the detection liquid sample bottle is arranged in the tray, the liquid injector is arranged on a pair of stepping gear belts on the left side and the right side through a liquid injector bracket, the stepping gear belt is arranged above the liquid injection station and the detection liquid sample bottle to be sucked, gears are meshed at two ends of the stepping gear belt, a belt stepping motor is connected to a shaft of the stepping belt motor with at least one gear, a liquid injection cylinder is arranged at the upper part of the liquid injection frame, an integral lifting frame is arranged at the lower part of the cleaning frame through a lifting slide rail I, a cylinder rod of the liquid injection cylinder is connected to the top of the integral lifting frame, the integral lifting frame is of an n-shaped structure, a gas pipe lifting guide long hole and a water pipe lifting guide long hole are arranged on the side surface of the n-shaped structure, the liquid injector is arranged, the air pipe micro cylinder and the water pipe micro cylinder are respectively connected with the lifting air pipe and the lifting water pipe through an air pipe connecting rod and a water pipe connecting rod, the air pipe connecting rod and the water pipe connecting rod penetrate through the air pipe lifting guide long hole and the water pipe lifting guide long hole and lift along the air pipe lifting guide long hole and the water pipe lifting guide long hole, the height of the air pipe lifting guide long hole is larger than that of the water pipe lifting guide long hole, high-purity water is connected in the lifting water pipe, and purified gas is connected in the lifting air pipe;

furthermore, the water spray pipe, the solvent pipe and the gas spray pipe are respectively arranged on respective sliding frames by utilizing a fixer, the sliding frames are arranged on the vertical frame in a sliding way through lifting slide rails, and the stations at the upper ends of the water spray pipe, the solvent pipe and the gas spray pipe are respectively provided with a photoelectric detection sensor of a cuvette for liquid to be detected;

further, the automatic light shield top is provided with the hanger rail, and the automatic light shield passes through the hanging wheel roll removal on crooked type hanger rail, and the automatic light shield does the round trip movement through the electric jar drive, and actuating lever on the electric jar is connected with the automatic light shield, and the automatic light shield anterior segment is provided with the sealing strip, and manual light shield below is provided with linear guide, and when the automatic light shield was opened, it is located the manual light shield and the fixed lens shield outside, when closing, automatic light shield sealing strip and manual light shield or fixed lens shield in close contact with.

The utility model discloses the positive effect who has is: the light path system uses the modularized light source with the specific wavelength, so that the wavelength of the light source is more precise and accurate, and in the using process, the module with the corresponding wavelength can be replaced according to the detection requirement for detection, thereby being beneficial to more accurately detecting liquid in a laboratory; the liquid cuvette to be measured is fixed on the stepping conveyor belt, so that the manual operation of the liquid cuvette to be measured can be omitted, the transmittance of the cuvette can be ensured, the service life of the cuvette can be prolonged, the system error caused by frequent replacement of the cuvette is reduced, and the experiment cost can be reduced; meanwhile, the multiple channels are used for simultaneous step-by-step detection, so that the detection speed can be increased; the complexity of the whole set of equipment can be reduced by adopting the modularized light source, the mechanical structure in a light path is reduced, the maintenance difficulty of the equipment is favorably reduced, and the reliability of a detection result is improved; by arranging the light shield, the influence of external light in the detection process can be prevented, the detection solution and the reference solution can be detected under the same condition, a more ideal detection effect can be obtained, and the accuracy of detection data can be improved; the liquid injector is arranged above the liquid injection station, the tray below the liquid injection station is internally provided with a detection liquid sample bottle to be absorbed, the movable stepping gear belt is arranged above the liquid injection station, the liquid injector is arranged on the liquid injector bracket above the stepping gear belt, the liquid injector is composed of three layers of pipes, and the three layers of pipes of the liquid injector are respectively provided with a miniature lifting air cylinder, so that the liquid injector can absorb the solution from the detection liquid sample bottle to be absorbed and inject the solution into a detection cuvette, and the liquid injector can be cleaned by purified water in a lifting water pipe after the solution is injected, meanwhile, the liquid injector can be dried by clean gas, and the cleanliness of the liquid injector can be ensured; the lower end of the lifting air pipe extends to the lower end of the opening of the conical pipe, the lower end of the lifting air pipe is provided with a lifting plug for sealing the lower end of the opening of the conical pipe, the lifting air pipe can be opened to absorb liquid to be detected in the conical pipe after descending, the lifting plug is used for lifting to plug the lower end of the opening of the conical pipe after absorbing the liquid to be detected, the leakage of the liquid to be detected can be prevented, the liquid to be detected is safely transferred to the position above a detection station by using a stepping gear belt, the liquid injector is descended into a cuvette by using a lifting air cylinder, the liquid to be detected is injected into the cuvette for detection by descending the liquid injector, in addition, water outlet holes and air blowing holes are arranged on the peripheries of the lifting air pipe and the lifting water pipe in the outer layer pipe, the interior of the cuvette can be cleaned and dried, the residual pollution of; the plurality of cuvettes are fixed on the transmission belt, so that the liquid to be detected can be automatically poured after detection; the inside of the liquid colorimetric dish to be detected can be cleaned and dried by arranging the cleaner and the dryer below the cleaning station, and particularly, by arranging the water spray holes, the solvent holes or the air spray holes at the upper ends and the peripheries of the water spray pipe, the solvent pipe and the air spray pipe, when the water spray pipe, the solvent pipe and the air spray pipe rise to the upper part in the liquid colorimetric dish to be detected, cleaning water, an organic solvent and gas can be sprayed towards the upper part and the periphery of the liquid colorimetric dish to be detected, so that the inside of the liquid colorimetric dish to be detected can be cleaned and dried; the bottoms of the water spray pipe, the solvent pipe and the gas spraying pipe are arranged on the supporting plate, the fixing devices of the water spray pipe, the solvent pipe and the gas spraying pipe are arranged on the lifting slide rail in a sliding mode, the water spray pipe, the solvent pipe and the gas spraying pipe can be driven by the synchronous cylinder arranged at the lower end of the supporting plate to drive the water spray pipe, the solvent pipe and the gas spraying pipe to lift, the water spray pipe, the solvent pipe and the gas spraying pipe can lift simultaneously, whether the liquid cuvette to be detected is in place or not can be detected by the sensor, and whether cleaning liquid or dry gas is sprayed or not can be implemented under the; the stepping conveyor belt is driven by a conveyor belt stepping motor, and the conveyor belt stepping motor drives the stepping conveyor belt to move forward in a stepping mode, so that the filling of detection liquid at a liquid injection station is facilitated, and the detection liquid at a detection station is detected; the belt stepping motor is connected to the stepping gear belt, the electromagnetic valves are arranged in the cleaning water pipe, the solvent pipeline and the gas circuit, the electromagnetic valves are arranged on the synchronous cylinders and are connected with the controller, and automatic liquid injection, detection, pouring, cleaning, drying and the like of the liquid to be detected are achieved under the control of the controller. Utilize the utility model discloses, can make to detect and realize automaticly, reduce or eliminate the touch frequency of cell, prolong the life of cell, reduce the change frequency of cell, improve the accuracy of monochromatic light wavelength, reduce the residual composition of waiting to detect liquid on the cell for detection speed reduces the detection cost, improves the rate of accuracy of testing result.

Drawings

Fig. 1 is a schematic view of the overall overlooking structure of the present invention.

Fig. 2 is a schematic structural diagram of a liquid cuvette stepping conveyor belt and peripheral equipment to be measured.

FIG. 3 is a schematic front view of the injector.

FIG. 4 is a schematic side view of the injector.

Fig. 5 is a schematic structural view of the automatic light shield.

FIG. 6 is a schematic side view of the water bath cleaning apparatus.

Fig. 7 is a schematic side view of the dryer.

Figure 8 is a schematic view of the adjustable integral lifting frame.

FIG. 9 is a schematic diagram of a two-sided conditioning plate.

Fig. 10 is a schematic structural diagram of a conventional dual optical path system.

In the drawings, the respective reference numerals denote the following parts: 11-step conveyor belt, 12-rack, 13-liquid injection station, 14-detection station, 15-step gear belt, 16 a-automatic light shield, 16 b-manual light shield, 17-liquid injector, 18-tray, 19 a-water pipe micro lifting cylinder, 19 b-air pipe micro lifting cylinder, 20-modular light source, 22-liquid injector moving system, 23 a-waste liquid cylinder I, 23 b-waste liquid cylinder II, 23 c-waste liquid cylinder III, 24-cleaner, 25-dryer, 26 a-conveyor belt stepping motor, 26 b-belt stepping motor, 30-liquid injector bracket, 31-liquid injector fixing plate, 32-belt gear, 33-outer pipe, 33 a-lifting slide rail I, 34-lifting water pipe, 34 a-water pipe connecting rod, 34 b-water pipe lifting guide long hole, 34 c-water outlet hole, 35-lifting air pipe, 35 a-air pipe connecting rod, 35 c-air blowing hole, 36-plug, 37-liquid injection cylinder, 38-water pipe lifting cylinder rod, 40-integral lifting frame, 41-water spray pipe, 42-solvent pipe, 43-air spray pipe, 44-supporting plate, 45-synchronous cylinder, 46-cylinder frame, 47-cleaning water pipe, 47 a-waterway electromagnetic valve, 48-solvent pipeline, 48 a-solvent electromagnetic valve, 49-sliding frame I, 50-hanging rail, 50 a-hanging wheel, 51-electric cylinder, 52-driving rod, 53-sealing strip, 60-vertical frame, 61-water spray hole, 62-lifting sliding rail II, 63-a fixer, 64-a water inlet pipe, 65-a first base, 66-a second base, 70-a third lifting slide rail, 71-a second sliding frame, 72-an air inlet pipe, 74-a ruler, 75-an adjusting plate, 76-an adjusting bolt, 76 a-a limiting tooth, 77-a limiting notch, 101-a light source, 102-a grating, 103-a light beam splitter, 104-a reference liquid cuvette, 105-a detector, 106-a display, 107-a liquid cuvette to be detected and 108-a computer host.

Detailed Description

Before the invention, experiments are firstly carried out on the cleaning effect and the influence on experimental data, and the specific data are as follows:

current routine test methods

Washed three times with water, rinsed three times with potassium permanganate solution, poured into potassium permanganate solution to measure the absorbance at 545nm, and the result is 0.110 (five times average).

Experimental methods

Concentration of potassium permanganate solution: 5 ✕ 10^-5mol/L

Measuring wavelength: 545nm

1. Directly pouring potassium permanganate solution into a clean and dry cuvette for testing

Results 0.110 (five averages); the error is very small, and the clean cuvette can be directly used for testing without rinsing;

2. directly pouring the mixture into a potassium permanganate solution for testing without rinsing or drying after being directly washed by water

Results 0.105 (five averages); the reason is that the wall-hung water dilutes the solution to be detected during cleaning, so that the light absorption value is reduced;

3. the test cuvette was tested according to the following method

Inverting the cuvette, washing with 2ml of pure water at a constant speed, washing with 2ml of acetone at a constant speed, drying with air at a rate of about 1L/min, pouring potassium permanganate solution for testing

The result is 0.110 (five averages), this method is feasible, the error is within the normal range;

based on the experimental data, in view of the defects of the existing spectrophotometer, the invention is successfully developed through cooperative research of multiple parties.

The technical solution of the present invention will be described in detail below with reference to the accompanying drawings.

The technical scheme of the utility model is a spectrophotometer for detect in batches, figure 1 is the utility model discloses a structural schematic diagram is overlooked to whole. FIG. 2 is a schematic diagram of the structure of the cuvette step conveyor and peripheral devices. The spectrophotometer comprises a light path system, the light path system comprises a light source 101, a light beam splitter 103 for dividing the light source into multiple beams, a liquid cuvette 107 for containing liquid to be detected, a reference liquid cuvette 104 for containing reference liquid, a detector 105 for detecting and comparing the light absorption of the liquid to be detected and the reference liquid, a computer host 106 for calculating and displaying detection data, a ratio display 106 and an operation panel, the spectrophotometer comprises a detection system and a liquid injection system, the detection system comprises multiple rows, the liquid injection system comprises one row, the multiple rows of detection systems have the same structure, the multiple rows of detection systems respectively comprise multiple paths of light path systems with the same structure, a stepping conveyor belt 11 is arranged in the multiple rows of detection systems in the vertical direction, each row of detection systems comprises a light path system and the liquid cuvette 107 for detecting on the stepping conveyor belt 11, the stepping conveyor belt 11 is provided with the multiple liquid cuvettes 107 for detecting, the multiple liquid cuvettes 107 to be detected respectively correspond to one path of light path system, each light path system is provided with a reference liquid cuvette 104 corresponding to the liquid cuvette 107 to be detected, the stepping conveyor belt 11 simultaneously detects the multiple liquid cuvettes 107 to be detected once in the advancing process, the liquid injection system is provided with a stepping gear belt 15, the stepping gear belt 15 is perpendicular to the stepping conveyor belt 11, the front end part of the stepping conveyor belt 11 and the stepping gear belt 15 are in a cross structure, the stepping gear belt 15 is positioned above the front end part of the stepping conveyor belt 11, a liquid suction station, a liquid injection station and a cleaning station of the liquid injector 17 are arranged above the stepping gear belt 15, the liquid injection station is provided with a liquid injector fixing plate 31 through a liquid injector bracket 30, the liquid injector fixing plate 31 is provided with a lifting type liquid injector 17, and the multiple stations including the cleaning station and a drying station are arranged below the stepping conveyor belt 11, the cleaning station and the drying station are respectively provided with corresponding cleaners and dryers, the intervals of a plurality of rows of detection systems are equal, the step interval of a step conveyor belt 11 is equal to the intervals of a plurality of rows of detection systems, a controller and an operation panel are arranged in a batch detection spectrophotometer and connected with a computer host 108, the spectrophotometer utilizes a step gear belt 15 to drive an injector bracket 30, an injector fixing plate 31 and an injector 17 to move to the upper part of a tray, liquid to be detected is drawn out of a liquid bottle to be detected of the tray and then moved to the injection station, the liquid to be detected is released to a liquid cuvette 107 to be detected on the injection station, then the injector 17 is cleaned, when the liquid is detected for the first time, the injector 17 is cleaned and then cleaned, various detection items are detected through a plurality of detection light paths in the detection system and then are transmitted to the computer host 108, and comparing the sample solution with a reference solution to obtain a detection result, wherein all the cuvettes 107 to be detected contacting the detection solution need to be cleaned and dried before and after detection in order to obtain accurate detection data, and the cleaned and detected solution is poured into various waste solution tanks in a classified manner.

The light source 101 of the light path system adopts a modularized light source 20 with fixed wavelength, the modularized light source 20 is a monochromatic light point light source, the modularized light source enters a beam splitter through the incident light of the grating 102, the light emitted by the beam splitter is divided into two beams of light with opposite directions, the two beams of light respectively pass through a liquid cuvette 107 to be detected or a reference cuvette 104 and irradiate to detectors 105 at two sides, the detectors 105 are connected with a computer host 108, and the plurality of reference cuvettes 104 are respectively arranged on respective racks 12.

A waste liquid cylinder I23 a is arranged below the tail end of the stepping conveyor belt 11, the opposite side of the tray 18 below the stepping gear belt is an injector cleaning station, a second injector cleaning liquid waste liquid cylinder II 23b is arranged below the injector cleaning station, and a third waste liquid cylinder 23c is arranged below the stepping conveyor belt 11 cleaning station and the drying station.

In this embodiment, be provided with three liquid cell 107 and three reference liquid cell 104 of waiting to detect respectively to will wait to detect the liquid cell 107 and bond on step-by-step conveyer belt 11, place three reference liquid cell 104 in square cell sets up the cover, end cap 36 adopted flexible silica gel to make into the water droplet shape, lift trachea 35 be solid construction below the venthole, be hollow structure more than the venthole.

Treat that test solution cell step-by-step conveyer belt 11 is intermittent type nature motion, the station quantity of reference solution cell 104 equals on 11 side station quantities of step-by-step conveyer belt and the rack 12, and the interval equals, treat that test solution cell 107 erects to be fixed on step-by-step conveyer belt 11, reference solution cell 104 is erect respectively and is placed on each rack 12, step-by-step conveyer belt 11 stops the back and annotates the liquid, detect, wash, dry, meanwhile reference solution cell rack 12 side carries out corresponding detection simultaneously, the running roller diameter at 11 both ends of step-by-step conveyer belt equals.

FIG. 3 is a schematic front view of the injector. FIG. 4 is a schematic side view of the syringe. The liquid injector 17 is positioned above the stepping gear belt 15 and above the liquid injection station 13 of the stepping conveyor belt 11, the stepping gear belt 15 is higher than the stepping conveyor belt 11, the liquid injector 17 is of a lifting three-layer tubular structure, a sealing ring is arranged between three layers of pipes, each pipe in the three-layer tubular structure is of an independent lifting structure, the lower end of the outer layer pipe 33 is a conical and open pipe, the middle pipe is a lifting water pipe 34, a lifting air pipe 35 is arranged in the lifting water pipe 34, the lower end part of the lifting air pipe 35 extends to the lower end of the opening of the conical pipe, a lifting plug 36 for sealing the lower end of the opening of the conical pipe is arranged at the lower end part of the lifting air pipe 35, a water outlet hole 34c and an air blowing hole 35c for spraying water and blowing air to the periphery are respectively arranged in the outer layer pipe 33 of the lifting water pipe 34 and the lifting air pipe 35, and the lifting water pipe 34 and the lifting air pipe 35 are respectively provided with a micro electromagnetic valve on the pipeline.

The liquid cell 107 that awaits measuring on the step-by-step conveyer belt 11 and the reference liquid cell 104 on every row of light path system set up on the light path of the 11 direction of perpendicular to step-by-step conveyer belt, and the reference liquid cell 107 and the reference liquid cell 104 on every row of light path use the beam splitter to be central mutual symmetry, and the reference liquid cell 104 sets up on the rack, and a reference liquid cell 104 can correspond a plurality of liquid cells 107 that await measuring in the detection.

A tray for sample bottles to be absorbed is arranged below a liquid injection station 13 of liquid to be detected of the stepping gear belt 15, a plurality of hole sites for arranging the sample bottles of the detection liquid are arranged in the tray, 22 is a liquid injector moving system, a lifting liquid injector 17 is arranged on the stepping gear belt 15 in a rolling manner through a belt gear 32 below a liquid injector support 30, a liquid injector fixing plate 31 is fixed on the liquid injector support 30, the liquid injector 17 is arranged on one side surface of the liquid injector fixing plate 31, the stepping gear belt 15 is arranged above the space between the liquid injection station 13 and the sample bottles to be absorbed and is vertical to the conveying direction of the stepping conveyor belt, a belt stepping motor 26b is arranged at the end part of the stepping gear belt 15, a liquid injector support 30 is fixed on the gear belt 15, the liquid injector fixing plate 31 is fixed on the liquid injector support 30, and the liquid injector fixing plate 31 is driven by the stepping gear belt 15 to move back, the liquid injector fixing plate 31 is provided with a liquid injector 17, the lower part of one side of the gear belt 15 is provided with a liquid sample tray 18 which can horizontally move and is to be detected, the tray is driven by a tray stepping motor to move along the direction vertical to the gear belt 11, the liquid injector 17 is connected with an integral lifting frame 40 through a lifting slide rail I33 a, the integral lifting cylinder is arranged on the upper part of the liquid injector fixing plate 31, the top of the integral lifting frame 40 is connected with a cylinder rod of the integral lifting cylinder, the integral lifting frame 40 forms an n-type structure, the liquid injector is arranged in the n-type structure, the two side surfaces of the n-type structure are provided with a gas pipe lifting guide long hole and a water pipe lifting guide long hole 34b, the two outer side surfaces of the liquid injector 17 in the n-type structure are respectively provided with a gas pipe micro cylinder 19b and a water pipe micro cylinder 19a, the cylinder rods of the gas pipe micro cylinder 19b and the water pipe micro cylinder 19 On pipe 35 and the lift water pipe, 38 are water pipe lift cylinder pole, trachea connecting rod 35a and water pipe connecting rod 34a run through respectively in trachea lift direction slot hole and water pipe lift direction slot hole 34b along the vertical direction and drive lift trachea 35 and lift water pipe and remove, whole crane 40 and notes liquid ware 17 are driven by whole lift cylinder and are gone up and down along lift slide rail 33a together, lift trachea 35 lift direction slot hole height is greater than water pipe lift direction slot hole 34b height, it is connected with high purity water in the lift water pipe 34, it waits to absorb the correspondence of detection liquid sample bottle and testing result to connect the purge gas in the lift trachea 35 and sets for the position in advance in the controller to automatic memory detects corresponding detection data in the testing process, finally show in display 106.

The liquid cuvette 107 to be detected is a liquid injection station 13 and a plurality of detection stations 14 which are sequentially stopped along the advancing direction of the stepping conveyor belt 11, a liftable liquid injector 17 is arranged above the liquid injection station 13, the positions of the stepping conveyor belt 11 which are sequentially stopped are a dumping station, a cleaning station, a drying station and one or more preparation stations, a lifting type cleaner 24 and a lifting type dryer 25 are respectively arranged below the cleaning station and the drying station, the stepping conveyor belt 11 stops intermittently during liquid injection or detection, the positions of the positions, A cleaning station, a drying station and one or more preparation stations, wherein the cleaning station comprises two cleaning steps of water bath cleaning and organic solvent cleaning.

In this example, the specific components of the organic solvent used were: one or a mixture of several of methanol, ethanol, isopropanol, acetonitrile, acetone, butanone, tetrahydrofuran and ethylamine.

Step-by-step conveyer belt 11 is last to be provided with one and to annotate liquid station 13 and a plurality of detection station 14, and a plurality of detection station 14 outsides all correspond and are provided with detector 105, and reference liquid cell rack 12's height can the regulation type structure.

The stop positions of the cuvette 107 to be tested along the advancing direction of the stepping conveyor belt 11 are a liquid injection station 13 and a plurality of detection stations 14, a liftable liquid injector 17 for injecting detection liquid into the cuvette 107 to be tested on the stepping conveyor belt is arranged on the stepping gear belt 15 above the liquid injection station 13, and the cuvette 107 to be tested stops at the detection stations arranged on a plurality of light paths.

The method comprises the following steps that a dumping station, a water bath cleaning station, an organic solvent cleaning station, a drying station and one or more preparation stations are sequentially and respectively arranged below a stepping conveyor belt 11 along the advancing direction stop position of the stepping conveyor belt 11, a lifting type cleaner 24 and a lifting type dryer 25 are respectively arranged below the water bath cleaning station, the organic solvent cleaning station and the drying station, a waste liquid cylinder 23c is arranged below the lifting type cleaner 24 and the lifting type dryer 25, during liquid injection or detection, the stepping conveyor belt stops intermittently, the stepping conveyor belt 11 respectively performs liquid injection or detection, and the liquid to be detected is dumped, water bath cleaning, organic solvent cleaning and drying are simultaneously performed on the lower position of the lower portion of the stepping conveyor belt corresponding to the upper station along the advancing direction of the stepping conveyor belt 11.

The cleaning station lower extreme is provided with lift type purger 24 and desicator 25, the purger includes spray pipe 41 and solvent pipe 42, the desicator 25 includes jet-propelled pipe 43, spray pipe 41, solvent pipe 42 and jet-propelled pipe 43 bottom set up in backup pad 44, backup pad 44 sets up the rod end at synchronous cylinder 45 pole, spray pipe 41, solvent pipe 42 and jet-propelled pipe 43's washing water pipe 47, be provided with the solenoid valve in solvent pipeline 48 and the gas circuit respectively, spray pipe 41, the upper end and the periphery of solvent pipe 42 and jet-propelled pipe 43 set up porosely, wash and dry to waiting to detect liquid cell 107 inside respectively, the solenoid valve is connected with the controller electricity, synchronous cylinder sets up on cylinder frame 46, backup pad 44 side is provided with the lift slide rail.

The device of annotating liquid, washing, drying station sets up the cylinder on, is provided with the solenoid valve on the cylinder respectively, and the solenoid valve is connected with the controller electricity, and in this embodiment, 47 is for wasing the water pipe, 47a is the water route solenoid valve, is provided with water route solenoid valve 47a and solvent solenoid valve 48a on wasing water pipe 47 and the solvent pipeline 48 respectively, is provided with the gas circuit solenoid valve on the gas circuit equally, and water route solenoid valve 47a, solvent solenoid valve 48a and gas circuit solenoid valve all are connected with the controller.

Fig. 6 is a schematic side view of the water bath cleaning apparatus. The cleaner comprises a water bath cleaning device and an organic solvent cleaning device, the structures of the water bath cleaning device and the organic solvent cleaning device are completely the same, the structure of the cleaner is represented by the water bath cleaning device, the water spray pipe 41, the solvent pipe 42 and the bottom end of the water spray pipe 41 are arranged on a support plate 44, a synchronous cylinder 45 is connected below the support plate 44, the water spray pipe 41 is fixedly arranged on a second lifting slide rail 62 by a fixer 63, the support plate 44 and the fixer 63 are simultaneously fixed on the second lifting slide rail 62, the second lifting slide rail 62 is arranged on a stand 60, the synchronous cylinder 45 is connected with a controller through an electromagnetic valve to control the lifting of the synchronous cylinder, after the lifting, the water spray pipe 41 enters a liquid cuvette 107 to be measured, a water path electromagnetic valve 47a opens a cleaning water pipe 47 and then enters a water inlet pipe 64, water spray holes 61 are arranged at the side surface and the top of the water spray pipe 41 to spray water in the liquid cuvette 107 to be, and then falls.

The cuvette 107 for the liquid to be measured after water bath cleaning enters the next station under the driving of the stepping conveyor belt 11, the cuvette 107 for the liquid to be measured after water bath cleaning is cleaned with the organic solvent, and then the cuvette is dried at the next station of the organic solvent cleaning station.

Fig. 7 is a schematic side view of the dryer. The bottom of jet-propelled pipe 43 sets up on backup pad 44, be connected with synchronizing cylinder 45 below the backup pad 44, jet-propelled pipe 43 utilizes fixer 63 to set up jet-propelled pipe 43 fixedly on three 70 of lift slide rail, still be fixed with backup pad 44 and two 71 of carriage on the three 70 of lift slide rail simultaneously, three 70 settings of lift slide rail are on grudging post 60, be connected with the controller through the solenoid valve in synchronizing cylinder 45 and the gas circuit, control synchronizing cylinder 45's lift, after rising, jet-propelled pipe 43 gets into in waiting to detect liquid cell 107, the gas circuit of intake pipe 72 is opened to the gas circuit solenoid valve, jet orifice 73 blowout gas that sets up from jet-propelled pipe 43 side and top, to waiting to detect and dry in the liquid cell 107, descend after the drying.

Photoelectric detection sensors of the liquid to be detected cuvette 107 are respectively arranged on the stations at the upper ends of the water spray pipe 41, the solvent pipe 42 and the air spray pipe 43.

In this embodiment, the water bath cleaning, the organic solvent cleaning, and the drying are performed simultaneously, whether water is discharged from the cleaning water, the organic solvent and the drying gas needs to be judged according to the respective photodetectors 105 disposed at the sides of the water bath cleaning, the organic solvent cleaning, and the drying stations, once the cuvette 107 to be measured enters the water bath cleaning, the organic solvent cleaning, and the drying stations, the photodetector 105 at the station feeds back a signal to the controller, and the controller determines whether to open the water spray pipe 41, the solvent pipe 42, or the air spray pipe 43 at the station according to needs after the synchronization cylinder 45 rises, and determines whether to perform the cleaning or the drying.

The fixer 63 is formed by two opposite U-shaped parts, wherein one half of the U-shaped fixer is fixed on the second lifting slide rail 62 or the third lifting slide rail 70, and the other half of the U-shaped fixer is fixed on two sides of the other half of the U-shaped fixer through bolts so as to clamp the spray pipe 41, the solvent pipe 42 or the spray pipe 43 and fix the spray pipe on the opposite half of the U-shaped fixer.

The first base 65 of the washer 24 and the second base 66 of the dryer are supported by the support posts.

Before inspection, the liquid source of the sample in each tray 18 hole needs to be recorded into a controller, when in detection, liquid is firstly taken from a bottle and transferred into a liquid cuvette 107 to be detected, then the detection is carried out, and the controller mutually corresponds the liquid cuvette 107 to be detected and the detection result thereof.

Fig. 5 is a schematic structural diagram of an automatic light shield, a plurality of light shields are arranged on two sides of each light path system, a light shield is arranged on the outer side of the light path system, the light shield comprises a curved hanger rail 50 arranged above the automatic light shield 16a, the automatic light shield 16a moves on the curved hanger rail 50 in a rolling manner through a hanger wheel 50a, the automatic light shield 16a is arranged on the hanger rail 50 in a rolling manner through the hanger wheel 50a, the automatic light shield 16a moves back and forth through an electric cylinder 51, a driving rod 52 on the electric cylinder 51 is connected with the automatic light shield 16a, a sealing strip 53 is arranged on the front section of the automatic light shield 16a, a linear guide rail is arranged below a manual light shield 16b, when the automatic light shield 16a is opened, the sealing strip 53 is arranged outside the manual shade 16b and the fixed shade, and when the automatic shade 16a is closed, the sealing strip is tightly contacted with the manual shade 16b or the fixed shade. The closing structure of the automatic light shield 16a is the same as that of a sliding door of a minibus, the guide rail of the automatic light shield 16a is a bent guide rail, the track is on the same straight line when the automatic light shield 16a is closed, the automatic light shield 16a is overlapped outside the manual light shield 16b or the fixed light shield when the automatic light shield 16a is opened, and the track when the automatic light shield 16a is opened is arranged in parallel with the manual light shield 16b or the fixed light shield.

During liquid injection or cleaning, the stepping conveyor belt 11 and the stepping gear belt 15 stop stepping, a plurality of light shields vertical to the conveying direction of the stepping conveyor belt 11 are arranged on the left, right and upper peripheries of the detection stations 14 and the detector 105 on the stepping conveyor belt 11 and the rack 12, and the plurality of light shields respectively seal the detection stations 14 and the detector 105 on the conveyor belt.

Fig. 8 is a structural schematic diagram of the adjusting and connecting integral lifting frame. Fig. 9 is a schematic view of the structure of the side adjustment plate. Height adjusting plates 75 are arranged on two sides of the integral lifting frame 40, limit notches 77 are formed in two side plate sides of an n-shaped structure of the integral lifting frame 40, the two side plates are provided with scales 74 and scales, adjusting bolts 76 are arranged on end faces of two sides of each height adjusting plate 75, limit teeth 76a are arranged on end faces of the adjusting bolts 76, the electromagnetic switch on the air cylinder is combined with the height adjusting plates 75, and the up-down moving positions of the water pipe connecting rods 34a in the guide long holes 3b and the air pipe connecting rods 35a in the corresponding long holes can be adjusted.

In this embodiment, the controller 108 utilizes a single chip microcomputer based on 89C51 or 89S51 series products, and the single chip microcomputer is connected with a computer and a display 106.

The detection method of the spectrophotometer for batch detection utilizes the spectrophotometer with the structure to carry out detection, and the detection steps are as follows:

1) before starting up, confirming the states of water, electricity, gas and light source modules;

2) adding a liquid sample bottle to be detected into a tray 18 of the liquid sample to be detected, and injecting a detection liquid source in each tray hole bottle in a controller, setting related detection parameters, then manually opening a manual light shield 16b, and adding reference liquid into a plurality of reference liquid colorimetric dishes 104;

3) detecting that the mobile terminal enters an automatic state, and implementing the following actions: in the automatic state, when the stepping conveyor belt 11 is stepping, the automatic light shield 16a is opened, and when the stepping conveyor belt 11 is stopped at the detection position, the automatic light shield 16a is closed, and the stepping conveyor belt operates according to the following steps:

A. the synchronous cylinder drives the water spray pipe 41 and other pipes to synchronously ascend to the upper position in the liquid cuvette 107 to be detected corresponding to the lower part of the stepping conveyor belt 11, water bath cleaning is carried out in the liquid cuvette 107 to be detected, the water spray pipe 41 and the air spray pipe 43 are in a standby state after ascending, the stepping conveyor belt 11 steps by one station, namely, the cleaned liquid cuvette 107 to be detected stays at the next station, the synchronous cylinder 45 drives the water spray pipe 41, the solvent pipe 42 and the air spray pipe 43 to ascend to the upper position in the liquid cuvette 107 to be detected corresponding to the lower part of the stepping conveyor belt 11, the solvent pipe 42 starts to clean the liquid cuvette 107 to be detected by using an organic solvent after water bath cleaning, meanwhile, the water spray pipe 41 carries out water bath cleaning in the next cuvette, the air spray pipe 43 is in a standby state after ascending, the stepping conveyor belt 11 steps by one station, namely, the cleaned liquid cuvette 107 to be detected stays at the next station, the synchronous cylinder 45 ascends, the air injection pipe 43 ascends to the upper position in the corresponding to-be-detected liquid cuvette 107 below the stepping conveyor belt 11, the to-be-detected liquid cuvette 107 cleaned by the organic solvent is dried, and meanwhile, the water spray pipe 41 and the water spray pipe 41 respectively clean the cuvette behind the stepping conveyor belt 11 by water bath and the organic solvent;

B. before the cuvette enters a position before detection liquid is injected above the stepping conveyor belt 11, the injector 17 moves to a position above the waste liquid tank 23b on the stepping gear belt 15, the lifting air pipe 35 ascends to enable the plug 36 to block an opening of a conical pipe at the lower end of the outer pipe 33, the lifting water pipe 34 sprays pure water from the spray hole 34c to clean the inner wall of the outer pipe 33, the change-over switch is switched to an organic solvent, the lifting water pipe 34 sprays the organic solvent from the spray hole 34c to clean the inner wall of the outer pipe 33, the lifting air pipe 35 descends after cleaning is finished each time, the plug 36 moves away, and cleaning liquid is released into the waste liquid tank 23b below the injector 17; drying by air injection of the lifting air pipe 35;

C. confirming that a sample bottle to be absorbed and detected in a sample tray to be detected is located at a working line, moving an injector 17 to the position above a working line under the driving of a belt stepping motor 26b, lowering the injector 17 to the position above the sample bottle to be absorbed and detected under the driving of an injection cylinder 37, absorbing the liquid to be detected, lifting an air pipe 35, plugging a conical pipe opening at the lower end of an outer pipe 33 by a plug 36, moving the injector 17 to the position right above an injection station 13 under the driving of the belt stepping motor 26b, stepping by one station, and waiting;

D. the plug 36 in the liquid injector 17 is opened, the solution to be tested enters the cuvette 107 for the solution to be tested, the transmission belt 11 is stepped by one station,

E. respectively detecting the solutions in the cuvettes to be detected 107, reading the detection results by the detector 105, recording the results into a memory of the controller, advancing by one station in each step to obtain the detection result of one detection solution, and storing the detection result into the memory of the controller;

F. after the detection of the reference cuvettes 104 on the stepping conveyor belt 11 stations, pouring the liquid in the cuvettes to be detected 107 into the waste liquid tank 23 a;

while the liquid injector 17 sucks the liquid to be detected, the step A is carried out again;

G. after the dried cuvette 107 for liquid to be detected enters the liquid injection station 13, the liquid injector 17 drives the lower liquid injector 17 to descend into the cuvette 107 for liquid to be detected under the driving of the liquid injection cylinder 37, the lifting air pipe 35 descends, the opening of the conical pipe at the lower end of the outer pipe 33 is opened and sealed, the liquid to be detected flows into the cuvette 107 for liquid to be detected, the liquid injector 17 ascends, and the liquid injector 17 is driven by the belt stepping motor 26b to move on the stepping gear belt 15 to be above a sample bottle for liquid to be detected;

5) after the liquid injection is finished, the automatic light shield 16a slides to the periphery of the stepping conveyor belt 11 along the bent hanging rail 50 under the driving of the electric cylinder, and the liquid cuvette 107 to be detected enters a closed environment;

6) and the computer end processes the detection data, and stores, records, prints or transmits related detection results.

The utility model has the positive effects that the wavelength of the light source can be more accurately determined by using the modularized light source 20 in the light path system, the wavelength of the light source is more precise and accurate, and the module detection of the corresponding wavelength can be changed according to the liquid to be detected in the using process, thereby being beneficial to more accurately detecting the liquid in a laboratory; the liquid cuvette 107 to be detected is fixed on the stepping conveyor belt 11, so that manual operation of the liquid cuvette 107 to be detected can be omitted, the labor intensity can be reduced, the transmittance of the cuvette can be ensured, the service life of the cuvette can be prolonged, the cost for frequently replacing the cuvette is reduced, the experiment cost can be reduced, and meanwhile, the detection speed can be increased by simultaneously and simultaneously detecting a plurality of cuvettes step by step; two monochromatic lights of light split by the light beam splitter 103 are irradiated onto the cuvettes at two sides in opposite directions, so that a reflector for refraction is omitted, the illumination of the light is ensured, the attenuation of the illumination of the light in a light path is reduced, the illumination of the detection light is further ensured, and the detection effect can be ensured; the to-be-detected liquid cuvette 107, the detector 105, the reference liquid and the detector 105 are respectively arranged on two sides of each optical path system, so that one-to-one corresponding detection can be performed, and the device is facilitated to compare data between the to-be-detected liquid and the reference liquid to obtain a result; the automatic light shield 16a, the manual light shield 16b and the fixed light shield are arranged on one side of the liquid detection station 14 to be detected, the manual light shield 16b is arranged on the periphery of the reference liquid, the automatic light shield 16a is arranged on the periphery of the detection liquid, the manual light shield 16b can be opened manually, and the reference liquid cuvette 104 is arranged; by arranging the liquid injector 17 above the liquid injection station 13, arranging a detection liquid sample bottle to be sucked in a tray below the liquid injection station 13, arranging the movable stepping gear belt 15 above the liquid injection station, arranging the liquid injector 17 on the liquid injector support 30 above the stepping gear belt 15, wherein the liquid injector 17 is composed of three layers of pipes, and arranging the micro lifting cylinders on the three layers of pipes of the liquid injector 17 respectively, the liquid injector 17 can suck a solution from the detection liquid sample bottle to be sucked and inject the solution into the liquid cuvette 107 to be detected, and can clean the liquid injector 17 by using purified water in a lifting water pipe after filling, and meanwhile, the liquid injector 17 can be dried by using clean gas, so that the cleanliness of the liquid injector 17 can be ensured; the lower end of the lifting air pipe 35 extends to the lower end of the opening of the conical pipe, the lifting plug 36 for sealing the lower end of the opening of the conical pipe is arranged at the lower end of the lifting air pipe 35, liquid to be detected can be sucked in the conical pipe after the lifting air pipe 35 descends, the lower end of the opening of the conical pipe is blocked by lifting of the lifting plug 36 after suction, leakage of the liquid to be detected can be prevented, the liquid to be detected can be safely transferred to the position above the detection station 14 by using the stepping gear belt 15, the liquid injector 17 is lowered into the liquid to be detected cuvette 107 by using the lifting air cylinder, the water outlet holes 34c and the air blowing holes 35c are formed in the peripheries of the lifting air pipe 35 and the lifting water pipe 34 in the outer layer pipe 33, the interior of the liquid to be detected cuvette 107 can be cleaned and dried, residual of solution components can be prevented; by fixing the plurality of cuvettes 107 for liquid to be measured on the transmission belt, the cuvettes 107 for liquid to be measured on the detection conveyer belt 11 can be rotated to the lower side after detection, and the liquid to be measured can be automatically poured into the waste liquid tank 23a disposed below; the cleaning device 24 and the drying device 25 are arranged below the cleaning station, so that the interior of the cuvette for liquid to be detected can be cleaned and dried, particularly, the water spray holes 61 and the solvent holes or the air spray holes 73 are arranged at the upper ends and the peripheries of the water spray pipe 41, the solvent pipe 42 and the air spray pipe 43, so that cleaning water, organic solvent and gas can be sprayed towards the upper part and the periphery of the cuvette for liquid to be detected when the water spray pipe 41, the solvent pipe 42 and the air spray pipe 43 rise to the upper part in the cuvette for liquid to be detected, and the interior of the cuvette for liquid to be detected can be cleaned and dried; by disposing the water spray pipe 41, the solvent pipe 42 and the bottom of the air spray pipe 43 on the support plate 44, the supporting plate 44, the spray pipe 41, the solvent pipe 42 and the fixer 63 of the gas spray pipe 43 are arranged on the second lifting slide rail 62 and the third lifting slide rail 70 in a sliding way, can be driven by a synchronous cylinder 45 arranged at the lower end to drive the water spray pipe 41, the solvent pipe 42 and the gas spray pipe 43 to lift, not only can the water spray pipe 41, the solvent pipe 42 and the gas spray pipe 43 lift simultaneously, and whether the liquid cuvette to be detected is in place or not can be detected by the sensor, and according to the detection result, under the control of the controller, whether cleaning liquid is sprayed or whether the cleaning liquid is dried is determined, the stepping conveyor belt 11 is driven by a conveyor belt stepping motor 26a, and the conveyor belt stepping motor 26a drives the stepping conveyor belt 11 to move forward in a stepping mode, so that the filling of detection liquid in the liquid injection station 13 is facilitated, and the detection of the liquid in the detection station 14 is facilitated; through connecting gear belt step motor 26b on step gear belt 15, set up the solenoid valve in washing water pipe, solvent pipeline and gas circuit, set up the solenoid valve on synchronous cylinder, be connected with the controller simultaneously, under the control of controller, realize waiting to detect the automation of liquid and annotate liquid, detect, empty, wash and dry etc..

The test result of the reconstructed drying speed of the invention is as follows:

1. washing with water, inverting the mixture on filter paper, and carrying out washing until no water mark exists, wherein the time is as follows: 2 minutes and 25 seconds;

2. washing with water, inverting, blowing with 1L/min of air, and carrying out washing till no water mark exists for the following time: 1 minute and 43 seconds

3. Washing with water, washing with acetone, blowing with 1L/min of air, and drying for a period of time from washing to no water mark: for 7 seconds.

Utilize the utility model discloses, can make to detect and realize automaticly, reduce or eliminate the touch frequency of cell, prolong the life of cell, reduce the change frequency of cell, improve the accuracy of monochromatic light wavelength, reduce the residual composition of waiting to detect liquid on the cell for detection speed reduces the detection cost, improves the rate of accuracy of testing result.

Claims (9)

1. The utility model provides a spectrophotometer for detect in batches, includes optical path system, optical path system includes the light source, falls into the light beam splitter of multibeam with the light source, holds the cell of the liquid that awaits measuring and holds the reference liquid cell of reference liquid, carries out the light absorption to the liquid that awaits measuring and reference liquid and detects, the detector and the calculus of comparison, show the computer host computer and the ratio display of detected data, its characterized in that: the spectrophotometer comprises a detection system and a liquid injection system, wherein the detection system is provided with a plurality of rows, the liquid injection system is provided with one row, the plurality of rows of detection systems are same in structure and respectively comprise a plurality of paths of same light path systems, a stepping conveyor belt is arranged in the plurality of rows of detection systems in the vertical direction, each row of detection system comprises a light path system and a liquid cell to be detected on the stepping conveyor belt, the stepping conveyor belt is provided with a plurality of liquid cells to be detected, each light path system is provided with a reference liquid cell corresponding to the liquid cell to be detected, the liquid injection system is provided with a stepping gear belt, the front end part of the stepping conveyor belt and the stepping gear belt are in a cross structure, the stepping gear belt is positioned above the front end part of the stepping conveyor belt, a washing liquid station, a liquid injection station and a liquid injector cleaning station are arranged above the stepping gear belt, and a liquid, the step conveyor belt comprises a plurality of stations including cleaning stations and drying stations, corresponding cleaners and dryers are arranged on the cleaning stations and the drying stations respectively, the intervals of the multiple rows of detection systems are equal, the step intervals of the step conveyor belt are equal to the intervals of the multiple rows of detection systems, and a controller and an operation panel are arranged in a spectrophotometer for batch detection and connected with a computer host.

2. A spectrophotometer for batch testing according to claim 1, wherein: the light source of the light path system adopts a modularized light source with fixed wavelength, the modularized light source enters the light beam splitter through grating incident light, the light beam splitter emits light which is divided into two beams of light with opposite directions, the two beams of light respectively pass through the liquid to be detected cuvette or the reference cuvette and irradiate to the detectors on two sides, the detectors are connected with a computer host, and the plurality of reference cuvettes are respectively arranged on respective racks.

3. A spectrophotometer for batch testing according to claim 1, wherein: and respective waste liquid cylinders are respectively arranged below the tail end of the stepping conveyor belt, below the stepping conveyor belt cleaning and drying station and below the stepping gear belt.

4. A spectrophotometer for batch testing according to claim 1, wherein: the liquid injector is arranged on a belt of the stepping gear, the liquid injector is of a lifting type three-layer tubular structure, each pipe in the three-layer tubular structure is of an independent lifting type structure, the lower end of an outer-layer pipe is a conical and open-ended pipe and is used for filling liquid to be detected, the middle pipe is a lifting water pipe, a lifting air pipe is arranged in the lifting water pipe, the lower end of the lifting air pipe extends to the opening part of the conical pipe, the lower end of the lifting air pipe is provided with a lifting plug for sealing the lower end of the opening of the conical pipe, and the lifting water pipe and the lifting air pipe are respectively provided with a water outlet hole and.

5. A spectrophotometer for batch testing according to claim 1, wherein: wash station lower extreme and be provided with lift type purger and desicator, the purger includes spray pipe and solvent pipe, the desicator includes jet-propelled pipe, the spray pipe, solvent pipe and jet-propelled socle end set up in the backup pad, the backup pad sets up at synchronous cylinder rod end, the spray pipe, the feed liquor pipe of solvent pipe and jet-propelled pipe and the washing water pipe (47) of intake pipe, be provided with the solenoid valve in solvent pipeline (48) and the gas circuit respectively, the spray pipe, the upper end and the periphery of solvent pipe and jet-propelled pipe all set up porosely, wash and dry inside the look ware of liquid ratio that awaits measuring, the solenoid valve is connected with the controller electricity.

6. A spectrophotometer for batch testing according to claim 1, wherein: the both sides of light path system are provided with a plurality of lens hoods, and the lens hood includes manual lens hood, automatic lens hood and fixed lens hood, and manual lens hood and automatic lens hood set up respectively in reference liquid cell and treat measuring liquid cell periphery, and other light path peripheries are provided with fixed lens hood, and during the detection, automatic lens hood removes to the step-by-step conveyer belt periphery of detection station, carries out the shading, and when step-by-step conveyer belt gos forward, automatic lens hood removed to the step-by-step conveyer belt periphery of detection station.

7. A spectrophotometer for batch testing according to claim 1, wherein: a detection liquid sample bottle to be sucked is arranged below one side of the stepping gear belt, the detection liquid sample bottle is arranged in the tray, the liquid injector is arranged on a pair of stepping gear belts on the left side and the right side through a liquid injector bracket, the stepping gear belt is arranged above a liquid injection station and the detection liquid sample bottle to be sucked, gears are meshed at two ends of the stepping gear belt, a belt stepping motor is connected on a stepping belt motor shaft with at least one gear, a liquid injection cylinder is arranged at the upper part of the liquid injection frame, an integral lifting frame is arranged at the lower part of the cleaning frame through a lifting slide rail I, a cylinder rod of the liquid injection cylinder is connected at the top of the integral lifting frame, the integral lifting frame is of an n-type structure, a gas pipe lifting guide long hole and a water pipe lifting guide long hole are arranged on the side surface of the n-type structure, the liquid injector is arranged in, trachea miniature cylinder and water pipe miniature cylinder are connected with lift trachea and lift water pipe through trachea connecting rod and water pipe connecting rod respectively, and trachea connecting rod and water pipe connecting rod run through in trachea lift direction slot hole and water pipe lift direction slot hole rise to along trachea lift direction slot hole and water pipe lift direction slot hole lift, trachea lift direction slot hole height is greater than water pipe lift direction slot hole height, and the lift water pipe in-connection has high-purity water, and the lift trachea in-connection has purified gas.

8. A spectrophotometer for batch testing according to claim 5, wherein: the water spraying pipe, the solvent pipe and the air spraying pipe are respectively arranged on respective sliding frames by utilizing the fixing devices, the sliding frames are arranged on the vertical frame in a sliding mode through the lifting sliding rails, and photoelectric detection sensors of the liquid colorimetric ware to be detected are respectively arranged on the stations at the upper ends of the water spraying pipe, the solvent pipe and the air spraying pipe.

9. A spectrophotometer for batch testing according to claim 6, wherein: the automatic light shield is characterized in that a hanger rail is arranged above the automatic light shield, the automatic light shield moves on the bent hanger rail in a rolling mode through a hanger wheel, the automatic light shield moves back and forth through the driving of an electric cylinder, a driving rod on the electric cylinder is connected with the automatic light shield, a sealing strip is arranged on the front section of the automatic light shield, a linear guide rail is arranged below the manual light shield, when the automatic light shield is opened, the automatic light shield is positioned outside the manual light shield and the fixed light shield, and when the automatic light shield is closed, the sealing strip of the automatic light shield is in close contact with the manual light shield or the.

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