CN115356180B - Food safety detector - Google Patents
Food safety detector Download PDFInfo
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- CN115356180B CN115356180B CN202211298578.0A CN202211298578A CN115356180B CN 115356180 B CN115356180 B CN 115356180B CN 202211298578 A CN202211298578 A CN 202211298578A CN 115356180 B CN115356180 B CN 115356180B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
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Abstract
The invention belongs to the technical field of food safety, and particularly relates to a food safety detector which comprises a detection main body, wherein the detection main body is an integrated body provided with an operation screen and a detection system; the detection groove is formed in one side of the detection main body, and detection channels which are uniformly distributed are formed in the detection groove; the cuvette is used for containing sample liquid and is matched with the detection channel; the food safety testing device comprises a sample liquid preparation tank, a timer and an electromagnetic valve, wherein the sample liquid preparation tank is used for preparing a sample, the timer is arranged in the sample liquid preparation tank, the electromagnetic valve is used for controlling the electromagnetic valve to be matched with the sample liquid preparation tank, and the sample liquid preparation tank is used for preparing a sample liquid.
Description
Technical Field
The invention belongs to the technical field of food safety, and particularly relates to a food safety detector.
Background
The food safety problem is a global topic, and the malignant food safety event happens continuously internationally, which not only causes huge economic loss, but also causes personal safety hidden danger, so the implementation of food safety detection is very important. In order to enhance the rapidity, accuracy and standardization of food safety detection, the use of food safety detectors is gradually popularized.
Before detection, the food safety detector can prepare a sample solution by pretreating a sample through multiple steps of weighing, soaking, centrifuging, standing, adding a reagent and the like, and then pour the sample solution into a cuvette to analyze the sample solution. In the whole operation process, because certain time is required to be separated between the switching of the processing steps of the sample and the adding of the reagent, a large amount of time needs to be consumed for waiting in the process of preparing the sample liquid by a worker, the worker needs to expend energy to pay attention to the switching of the preparation steps of the sample liquid, the detection efficiency is low, the sample liquid is prepared by pure manpower, the automation degree is low, and the labor intensity of the worker is high.
In order to enhance convenience in sample preparation, semi-automatic processing of samples is realized through automatic machinery in the related art, such as a crusher and a centrifuge, and further the automation degree of sample processing is enhanced, but on one hand, although a sample processing mechanism in the related art can perform automatic operation on the samples to a certain extent, the sample processing mechanism still needs manual operation in a multi-step switching process, on the other hand, in the automatic sample preparation process, a worker needs to control more machinery, the labor intensity of the worker is reduced to a certain extent, but the complexity degree in the sample preparation process is increased, so that the food safety detection operation process still needs to invest larger labor cost.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the technical problems, the invention provides a food safety detector.
The technical scheme adopted by the invention for solving the technical problem is as follows: according to the invention, through the arrangement of the timer and the matching of the electromagnetic valve, in the preparation process of the sample liquid for food safety test, a worker can add the sample and the reagent which need to be used at one time and respectively set the adding sequence of the sample and the reagent, so that the automation degree of the sample liquid preparation is enhanced.
The invention relates to a food safety detector, which comprises
The detection main body is an integrated body provided with an operation screen and a detection system;
the detection groove is formed in one side of the detection main body, and detection channels which are uniformly distributed are formed in the detection groove;
the cuvette is used for containing sample liquid and is matched with the detection channel;
still include the sample processing subassembly, the sample processing subassembly is installed in detecting the inslot, and the sample processing subassembly is used for carrying out the preliminary treatment to the sample, and the sample processing subassembly includes:
the mounting plate is mounted on the detection main body and extends into the detection groove, a treatment groove is formed in the mounting plate, and a cover plate is hinged to the mounting plate corresponding to the treatment groove;
the operation tube and the reagent tube are arranged in the processing groove, the cover plate is in threaded connection with the sample tube corresponding to the operation tube, and the sample tube is of a tubular structure with holes uniformly formed in the surface;
the electromagnetic valves are arranged at the bottoms of the operation pipe and the reagent pipe and are communicated with the inner cavities of the operation pipe and the reagent pipe;
the timers are in one-to-one correspondence with the electromagnetic valves and are electrically connected with the electromagnetic valves and used for opening and closing the electromagnetic valves;
the infusion tube is arranged in the processing groove, the infusion tube is in conduction connection with the electromagnetic valve, and the infusion tube extends to the upper part of the cuvette.
Preferably, an air pump is fixedly installed on one side of the treatment tank, the air pump is electrically connected with the timer, an air discharge nozzle of the air pump is in conduction connection with the infusion tube, and the air pump is used for conveying air flow into the infusion tube.
Preferably, the air suction nozzle of the air pump extends to the outer side of the mounting plate, the mounting plate is provided with a filter element in a sliding manner, and the filter element is matched with the air suction nozzle of the air pump.
Preferably, the processing tank is designed in a plurality, the processing tanks are arranged on the mounting plate at equal intervals, the structures in the processing tanks are the same, and the mounting plate is connected with the detection tank in a sliding mode.
Preferably, the mounting panel corresponds the treatment trough and sets up evenly distributed's lift groove, and there is the depression bar through spring elastic connection in the lift groove, and the depression bar runs through the lift groove to extend to the mounting panel top, cell sliding connection is close to the detection channel one end in the lift groove, depression bar and cell fixed connection, lift inslot fixedly connected with rubber cap, rubber cap and cell match.
Preferably, install evenly distributed's pilot lamp in the detection main part, pilot lamp and detection channel one-to-one install the push type switch in the detection channel, the push type switch is connected with the pilot lamp electricity.
Preferably, the rubber cap is fixedly connected with a return pipe, and one end of the return pipe, which is far away from the rubber cap, sequentially extends into the reagent pipe and the operation pipe.
Preferably, install evenly distributed's water pipe in the mounting panel, the water pipe is connected with external water supply pipe, and the water pipe extends to the inside opening that is equipped with of rubber cap, and the transfer line is close to air pump one end fixedly connected with drain pipe.
Preferably, a water valve switch is arranged in the middle of the water pipe and is hinged with the pressure rod.
Preferably, the backflow pipe located in the operation pipe and the reagent pipe is provided with an opening, the tops of the operation pipe and the reagent pipe are both provided with guide threads, the opening of the backflow pipe is located at the guide threads and is close to the end part of the top of the operation pipe or the reagent pipe, and after part of water flow guided by the guide threads flows out from the opening of the backflow pipe, spiral motion is carried out on the side wall of the operation pipe or the reagent pipe.
The invention has the following beneficial effects:
1. according to the food safety detector, the timer is matched with the electromagnetic valve, in the preparation process of the sample liquid for food safety testing, a worker can add the sample and the reagent which need to be used at one time and set the adding sequence of the sample and the reagent respectively, so that the automation degree of sample liquid preparation is enhanced, compared with the prior art, when the worker configures the sample liquid, the worker needs to perform self-timing and adds the corresponding reagent according to time, in the operation process, the worker only needs to add the corresponding sample and the corresponding reagent at one time, the trouble degree of self-timing of the worker is eliminated, and the sample liquid preparation step is optimized; compared with manual timing, the timing accuracy is higher by adopting the timer, so that the adding time of each reagent in the sample liquid is more accurate.
2. According to the food safety detector, the water pipes are arranged and distributed uniformly, so that the water pipes correspond to the cuvette and the infusion pipe, after detection is finished, a worker manually opens the external water supply pipeline, water flow in the external water supply pipeline flows into the cuvette through the water pipes, after the cuvette is filled with the water flow, the water flow wraps the detected reagent and flows into the return pipe and the infusion pipe, the reagent pipe and the infusion pipe sequentially flow into the operation pipe and the reagent pipe, the reagent pipe and the operation pipe enter the infusion pipe again after being cleaned, the infusion pipe flows into the drain pipe, and therefore discharging of cleaning water and cleaning of the cuvette, the reagent pipe, the operation pipe and the infusion pipe are achieved, the automation degree of cleaning appliances is improved, and the labor intensity of the worker is further reduced.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a partial cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
fig. 4 is a partially enlarged view of fig. 2 at B.
In the figure: 1. detecting a subject; 11. a detection tank; 12. a detection channel; 2. a cuvette; 21. mounting a plate; 22. a treatment tank; 23. a cover plate; 24. an operation tube; 25. a reagent tube; 26. a sample tube; 3. an electromagnetic valve; 31. a timer; 32. a transfusion tube; 4. an air pump; 41. a filter element; 5. a lifting groove; 51. a pressure lever; 52. a rubber cap; 53. an indicator light; 54. a push switch; 55. a return pipe; 6. a water pipe; 61. a drain pipe; 7. a water valve switch; 8. a lead screw.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific implementation mode and the attached drawings.
As shown in fig. 1 to 4, a food safety detector comprises a detection main body 1, wherein the detection main body 1 is an integrated body provided with an operation screen and a detection system;
the detection groove 11 is formed in one side of the detection main body 1, and detection channels 12 which are uniformly distributed are formed in the detection groove 11;
the cuvette 2 is used for containing sample liquid, and the cuvette 2 is matched with the detection channel 12;
still include the sample processing subassembly, the sample processing subassembly is installed in detecting groove 11, and the sample processing subassembly is used for carrying out the preliminary treatment to the sample, and the sample processing subassembly includes:
the mounting plate 21 is mounted on the detection main body 1, the mounting plate 21 extends into the detection groove 11, a processing groove 22 is formed in the mounting plate 21, and a cover plate 23 is hinged to the mounting plate 21 corresponding to the processing groove 22;
the operation tube 24 and the reagent tube 25 are arranged in the processing groove 22, the cover plate 23 is in threaded connection with the sample tube 26 corresponding to the operation tube 24, and the sample tube 26 is of a tubular structure with uniformly opened holes on the surface;
the electromagnetic valves 3 are arranged at the bottoms of the electromagnetic valve 3, the operation tube 24 and the reagent tube 25, and the electromagnetic valves 3 are communicated with the inner cavities of the operation tube 24 and the reagent tube 25;
the timer 31, the timer 31 corresponds to the electromagnetic valve 3 one by one, the timer 31 is electrically connected with the electromagnetic valve 3, and is used for opening and closing the electromagnetic valve 3;
the infusion tube 32 is arranged in the processing groove 22, the infusion tube 32 is communicated with the electromagnetic valve 3, and the infusion tube 32 extends to the upper part of the cuvette 2;
when carrying out food safety inspection, the staff selects suitable sample, and place the sample in sample tube 26, carry out threaded connection back with sample tube 26 and apron 23, respectively according to the proportion to operation pipe 24, add the reagent that is used for the auxiliary detection in the reagent pipe 25, simultaneously after the reagent adds finishes, staff's manual regulation timer 31, according to the order of addition and the time interval of reagent in the detection technology, respectively to a plurality of reagent pipes 25, operation pipe 24 counts down, after the adjustment of accomplishing timer 31, close apron 23, the sample processing subassembly can be handled the sample automatically this moment, the staff need not to pay attention to constantly. At this time, the sample in the sample tube 26 is soaked in the reagent in the operation tube 24, and when the soaking time reaches the time set by the operator as time passes, the timer 31 is electrically connected to the electromagnetic valve 3, so that the electromagnetic valve 3 can be opened by the timer 31 under the control of a preset program. The electromagnetic valve 3 is fixedly installed at the bottom of the operation tube 24, one end of the electromagnetic valve 3 extends into the operation tube 24, and the other end is connected with the infusion tube 32 in a conduction manner, so that after the electromagnetic valve 3 is opened and conducted, the soak solution in the operation tube 24 flows into the infusion tube 32 under the action of gravity and flows into the cuvette 2 under the guidance of the infusion tube 32; similarly, as time goes on, the timers 31 corresponding to the other reagent tubes 25 are sequentially started, and then the reagents in the other reagent tubes 25 sequentially flow into the infusion tube 32 and finally flow into the cuvette 2, so as to complete the reaction in the cuvette 2 and further complete the preparation of the sample solution,
specifically, in this embodiment, two operation tubes 24 and a plurality of reagent tubes 25 are installed in the same processing groove 22, and the operation tubes 24 and the reagent tubes 25 are equally divided into two rows, and correspondingly, a single processing groove 22 corresponds to two cuvettes 2, and is respectively used for preparing a control group sample solution and a detection group sample solution, so that two infusion tubes 32 are installed in the single processing groove 22, and the two infusion tubes 32 respectively communicate the equally divided operation tubes 24 and reagent tubes 25 with the corresponding cuvettes 2. During actual preparation, a worker respectively weighs and measures the sample and the reagent, and then the sample and the reagent are added into the operation tube 24 and the reagent tube 25 at one time, and under the cooperation of the timer 31 and the electromagnetic valve 3, the preparation of the sample liquid of the control group and the sample liquid of the detection group is respectively and automatically completed. Meanwhile, because the technical process of food safety detection is fixed, when the working personnel sets the timer 31, the total time required for completing the preparation of the comparison group sample liquid and the detection group sample liquid can be predicted, therefore, in the embodiment, the timing alarm is further installed on the cover plate 23, after the working personnel completes the addition of the sample and the reagent, the cover plate 23 is turned over, the time can be set on the timing alarm, after the preparation of the comparison group sample liquid and the detection group sample liquid is completed, the working personnel can be prompted through sound, after the working personnel receives the prompt, the prepared comparison group sample liquid and the prepared detection group sample liquid are respectively arranged in the detection channel 12, and the detection is completed through the operation screen on the detection main body 1 and the control and detection system.
This application cooperates with solenoid valve 3 through setting up timer 31, in the preparation process of the sample liquid of food safety test, the staff can once only with the sample that needs to use, reagent adds, and respectively to the sample, the adding order of reagent sets for, and then the degree of automation of reinforcing sample liquid preparation, compare in prior art staff when configuration sample liquid, need the self-timing, and carry out the interpolation of corresponding reagent according to the time, this application is in operation process, only need staff once only to add corresponding sample and reagent, the trouble degree that the staff self-timed has been saved, sample liquid preparation step has been optimized, compare in artifical timing simultaneously, it is higher to adopt timer 31 to carry out the degree of accuracy of timing, it is more accurate to cause the interpolation time of each reagent in the sample liquid.
As a preferred embodiment of the present invention, an air pump 4 is fixedly installed on one side of the treatment tank 22, the air pump 4 is electrically connected to the timer 31, an air outlet of the air pump 4 is in conduction connection with the infusion tube 32, and the air pump 4 is used for delivering air flow into the infusion tube 32;
when actual addition is carried out, the air pump 4 is arranged, the air pump 4 is electrically connected with the timer 31, when the time of the timer 31 is reset to zero, the timer 31 simultaneously sends electric signals to the electromagnetic valve 3 and the air pump 4, so under the action of a preset program, the electromagnetic valve 3 is opened, the air pump 4 is started, after the air pump 4 is started, outside air is extracted through the air extraction nozzle, the air is pressurized and then conveyed to the air exhaust nozzle of the air pump 4, and because the air exhaust nozzle of the air pump 4 is communicated with the infusion tube 32, under the action of continuous air flow, the flow rate of the reagent in the operation tube 24 and the reagent tube 25 to the infusion tube 32 is increased, and the flow rate of the reagent which flows into the infusion tube 32 is increased, so that the reagent is conveniently conveyed to the cuvette 2; meanwhile, as the flowing air can flow into the cuvette 2 through the liquid conveying pipe 32, the solution in the cuvette 2 is disturbed under the impact of the air flow, so that the uniformity of the mixing of various reagents in the cuvette 2 is enhanced, and the reaction and fusion efficiency of the reagents in the cuvette 2 is enhanced.
Meanwhile, during actual operation, through adjusting the control system in advance, when the timer 31 sends a signal to the air pump 4 once, under the effect of the control system, the air pump 4 is started and is automatically closed after continuously working for a period of time, and the working time of the air pump 4 is longer than the working time of the operating tube 24 and the time of the complete outflow of the full-load liquid in the reagent tube 25, so that in the preparation process of the sample liquid, the air pump 4 can be ensured to completely convey the liquid, the working time of the air pump 4 is simultaneously reduced, and the energy consumed during the working of the air pump 4 is further reduced.
As a preferred embodiment of the present invention, the air pump 4 has an air suction nozzle extending to the outside of the mounting plate 21, a filter 41 is slidably mounted on the mounting plate 21, and the filter 41 is matched with the air suction nozzle of the air pump 4. The filter element 41 is a frame structure with a plurality of layers of filter cotton cloth arranged inside, and is arranged outside the mounting plate 21, and the air pump 4 is arranged inside the filter element 41. Through sliding the installation filter element 41 on the installation plate 21, when the air pump 4 air exhaust nozzle extracts the outside air, the outside air firstly passes through the filter element 41, and after being filtered by the filter element 41, the air flow can flow into the air pump 4 air exhaust nozzle, so that the impurities and dust wrapped in the air can be effectively removed, and the reagent is prevented from being polluted by the air flow.
In a preferred embodiment of the present invention, the processing tank 22 is designed in plural, and the processing tanks 22 are arranged on the mounting plate 21 at equal intervals, the structures in the processing tanks 22 are the same, and the mounting plate 21 is slidably connected to the detection tank 11;
in the actual operation process, in order to further enhance the service efficiency of the food safety detector, the processing grooves 22 are designed in a plurality of ways, and the components and structures installed in the processing grooves 22 are completely the same, so that when the food safety detector is actually operated, a worker can simultaneously perform a plurality of sets of detection in the processing grooves 22 and slidably connect the mounting plate 21 with the detection groove 11, and after one set of experiments is completed, the worker can manually push the mounting plate 21 to move, so that a plurality of sets of infusion tubes 32 corresponding to the processing grooves 22 on the mounting plate 21 are respectively aligned with the cuvettes 2 in different detection channels 12, and then the detection is performed. Meanwhile, in other embodiments of the present application, in order to distinguish experiments in a plurality of processing tanks 22, different labels are pasted on the cover plate 23, or a erasable marking column is installed on the cover plate 23, after a worker fills corresponding detection samples and reagents, the worker can manually indicate information related to the test in the marking column, so that the worker can distinguish a plurality of groups of experiments, and the probability of confusion of the worker on the inspection data is reduced.
As a preferred embodiment of the present invention, the mounting plate 21 is provided with lifting grooves 5 uniformly distributed corresponding to the processing groove 22, the lifting grooves 5 are elastically connected with a pressure lever 51 through a spring, the pressure lever 51 penetrates through the lifting groove 5 and extends to the top end of the mounting plate 21, the cuvette 2 is slidably connected to one end of the lifting groove 5 close to the detection channel 12, the pressure lever 51 is fixedly connected with the cuvette 2, a rubber cap 52 is fixedly connected inside the lifting groove 5, and the rubber cap 52 is matched with the cuvette 2;
in order to further enhance the convenience of the food safety detector, the cuvettes 2 are slidably mounted in the lifting grooves 5 formed in the mounting plate 21, so that when the mounting plate 21 moves, the cuvettes 2 mounted in the corresponding lifting grooves 5 move synchronously, and further, the groups of cuvettes 2 can always correspond to the infusion tubes 32 in the groups of processing grooves 22, thereby further reducing the possibility of confusion of detection data,
specifically, when carrying out the experiment in multiunit processing tank 22, because depression bar 51 receives the effect of spring under initial condition, multiunit depression bar 51 is not receiving the exogenic action, all is in the same height, this moment with the cell 2 of depression bar 51 fixed connection and rubber cap 52 be in the laminating state, and cell 2 and detection channel 12 separate, when at timer 31, solenoid valve 3 and air pump 4's effect, cause solution to flow in cell 2, after accomplishing the sample liquid of contrast group and inspection group in a plurality of cells 2 of same group finally, under the warning of the timing alarm on apron 23, the staff receives the message that the sample liquid preparation was accomplished, staff manually presses depression bar 51 this moment, cause depression bar 51 compression spring to move to detection channel 12 direction, because depression bar 51 and cell 2 fixed connection, consequently, cell 2 moves in the detection channel 12 in step, and finally receive the influence of detection channel 12 inner wall frictional force, fix in detection channel 12, staff manually controls the operation screen on detection subject 1 this moment, control the inside detecting system of detection subject 1, and then accomplish the detection result of sample liquid, and the output detection result. After the detection is completed, the worker manually pulls the pressing rod 51, even if the pressing rod 51 is reset under the combined action of the spring and the manual force.
As a preferred embodiment of the present invention, the detecting body 1 is provided with evenly distributed indicating lamps 53, the indicating lamps 53 correspond to the detecting channels 12 one by one, the detecting channels 12 are provided with push switches 54, and the push switches 54 are electrically connected with the indicating lamps 53.
In the actual operation process, through installing pilot lamp 53 on detection subject 1, when the staff manually presses depression bar 51 and moves down, depression bar 51 drives cell 2 and moves to detection channel 12, and then exert pressure to push type switch 54 at the bottom of detection channel 12, under the effect of pressure, the circuit in push type switch 54 switches on, and then pilot lamp 53 gives out light, on the one hand, push type switch 54 cooperates with pilot lamp 53, be convenient for the staff to confirm that cell 2 is installed in place, whether there is cell 2 in detection channel 12 through the luminous convenient for staff of pilot lamp 53 simultaneously, and then when reducing the staff and manually pushing mounting panel 21 to slide, cause both ends to be located lift slot 5 respectively, cell 2 in detection channel 12 suffers the probability of damage, the luminous still being convenient for the staff of pilot lamp 53 confirms the serial number of detection channel 12 simultaneously, and then when the staff controls detection system, be convenient for carry out corresponding operation.
In a preferred embodiment of the present invention, a return tube 55 is fixedly connected to the rubber cap 52, and an end of the return tube 55, which is far away from the rubber cap 52, extends into the reagent tube 25 and the operation tube 24 in sequence.
Through setting up the back flow pipe 55, do not receive the manpower effect when depression bar 51, and then make depression bar 51 be in the initial position under the effect of spring, cuvette 2 and rubber cap 52 laminate this moment, send a signal when timer 31, cause solenoid valve 3, air pump 4 work back, under the effect of air pump 4, air current and reagent all flow to cuvette 2, because the cuvette 2 is middle space, the volume is certain, consequently the air current flows to back flow pipe 55 under the effect of atmospheric pressure, and get into reagent pipe 25, in the control tube 24 through back flow pipe 55, and then cause reagent pipe 25, the atmospheric pressure increase in the control tube 24, further strengthen the effect that the reagent in reagent pipe 25 or the control tube 24 flows to transfer line 32.
In a preferred embodiment of the present invention, the water pipes 6 are uniformly distributed in the mounting plate 21, the water pipes 6 are connected to an external water supply pipeline, the water pipes 6 extend to an opening in the rubber cap 52, and a water discharge pipe 61 is fixedly connected to one end of the infusion tube 32 close to the air pump 4.
Through set up evenly distributed's water pipe 6 in mounting panel 21, cause water pipe 6 and cell 2, transfer line 32 is corresponding, after the detection, the staff manually opens external water supply pipe, rivers in the external water supply pipe flow in 6 to cell 2 through the water pipe, after being full of rivers in cell 2, rivers wrap up and are holding the reagent after the detection to the back flow 55, flow in transfer line 32, and flow in proper order to operation pipe 24, flow in the reagent pipe 25, to reagent pipe 25, after operation pipe 24 washs, get into transfer line 32 again, and flow in to drain pipe 61 through transfer line 32, and then realize the emission to wasing water, and to cell 2, reagent pipe 25, operation pipe 24, transfer line 32's washing. In the actual operation process, the ends of the drainage pipes 61 far away from the infusion pipe 32 are communicated with each other and communicated with an external drainage channel after being gathered, so that the cleaned wastewater can be conveniently discharged. Because the drainage pipe 61 is fixedly connected to one end of the infusion tube 32 close to the air pump 4, after the air pump 4 is started, the air pump 4 directly conveys the air flow into the infusion tube 32, and therefore, under the action of the air flow, the reagent in the infusion tube 32 flows directionally and cannot flow into the drainage pipe 61.
As a preferred embodiment of the invention, a water valve switch 7 is arranged in the middle of the water pipe 6, and the water valve switch 7 is hinged with the pressure rod 51.
The water valve switch 7 is arranged in the middle of the water pipe 6, and the conduction state of the water pipe 6 is changed by the water valve switch 7. In practical use, an external water supply pipeline is manually opened, when the cuvette 2 needs to be cleaned, the pressing rod 51 is manually pulled, and the water valve switch 7 is hinged to the pressing rod 51, so that when the pressing rod 51 moves upwards, the water valve switch 7 rotates, the water valve switch 7 is switched from a closed state to an open state, and water in the water pipe 6 flows into the cuvette 2. Adopt solitary water valve switch 7 to wash the management and control of water, make water valve switch 7 and cell 2 correspond and bind, through manual lifting depression bar 51's mode simultaneously, as water valve switch 7's the mode of opening, can strengthen the degree that becomes more meticulous of cleaning effectively. In the time of actual operation, utilize the depression bar 51 lift, the lifting, and the cell 2 upward movement of fixed connection between the depression bar 51, and then cause cell 2 to form the extrusion to rubber cap 52, deformation takes place for rubber cap 52 atress, and then makes rubber cap 52 and cell 2 closely laminate, and then reduce under hydraulic effect, wash the probability that water oozes from between cell 2 and the rubber cap 52.
In a preferred embodiment of the present invention, the return pipe 55 located in the operation pipe 24 and the reagent pipe 25 is provided with an opening, the top of the operation pipe 24 and the top of the reagent pipe 25 are both provided with a guide screw thread 8, the opening of the return pipe 55 is located at the guide screw thread 8, and is close to the end of the top of the operation pipe 24 or the reagent pipe 25, and after the guide screw thread 8 guides part of the water flow to flow out from the opening of the return pipe 55, the water flow makes a spiral motion on the side wall of the operation pipe 24 or the reagent pipe 25.
Through the guide screw threads 8 arranged on the top parts of the operation pipe 24 and the reagent pipe 25, when cleaning water flows into the operation pipe 24 and the reagent pipe 25 through the return pipe 55, because the return pipe 55 is provided with openings inside the operation pipe 24 and the reagent pipe 25, and the opening of the return pipe 55 is positioned at the end part of the guide screw threads 8, when the cleaning water flows out of the return pipe 55, the cleaning water is guided by the guide screw threads 8, so that part of water flow rotates under the action of the guide screw threads 8, the water flow is simultaneously subjected to the combined action of tangential force, gravity and the impact force of the water flow, the washing range of the cleaning water on the pipe wall of the operation pipe 24 and the pipe wall of the reagent pipe 25 is enlarged, and the cleaning effect on the operation pipe 24 and the reagent pipe 25 is further enhanced.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A food safety detector comprises a detection main body (1), wherein the detection main body (1) is an integrated body provided with an operation screen and a detection system;
the detection groove (11) is arranged on one side of the detection main body (1), and detection channels (12) which are uniformly distributed are formed in the detection groove (11);
a cuvette (2), wherein the cuvette (2) is used for containing a sample liquid, and the cuvette (2) is matched with the detection channel (12);
the method is characterized in that: further comprising a sample processing assembly mounted within the detection cell (11) for pre-processing a sample, the sample processing assembly comprising:
the mounting plate (21) is mounted on the detection main body (1), the mounting plate (21) extends into the detection groove (11), a processing groove (22) is formed in the mounting plate (21), and the mounting plate (21) is hinged to a cover plate (23) corresponding to the processing groove (22);
the operation tube (24) and the reagent tube (25) are arranged in the processing groove (22), the cover plate (23) is in threaded connection with a sample tube (26) corresponding to the operation tube (24), and the sample tube (26) is of a tubular structure with holes uniformly formed in the surface;
the electromagnetic valves (3) are respectively installed at the bottoms of the operating pipe (24) and the reagent pipe (25), and the electromagnetic valves (3) are communicated with the inner cavities of the operating pipe (24) and the reagent pipe (25);
the timer (31) corresponds to the electromagnetic valves (3) one by one, and the timer (31) is electrically connected with the electromagnetic valves (3) and used for opening and closing the electromagnetic valves (3);
the infusion tube (32) is installed in the processing groove (22), the infusion tube (32) is communicated with the electromagnetic valve (3), and the infusion tube (32) extends to the upper part of the cuvette (2);
an air pump (4) is fixedly installed on one side of the processing groove (22), the air pump (4) is electrically connected with the timer (31), an air outlet of the air pump (4) is in conduction connection with the infusion tube (32), and the air pump (4) is used for conveying air flow into the infusion tube (32);
the air pump (4) is characterized in that an air suction nozzle extends to the outer side of the mounting plate (21), a filter element (41) is slidably mounted on the mounting plate (21), and the filter element (41) is matched with the air suction nozzle of the air pump (4);
mounting panel (21) correspond evenly distributed's lift groove (5) have been seted up in processing groove (22), there is depression bar (51) through spring elastic connection in lift groove (5), depression bar (51) run through lift groove (5), and extend to mounting panel (21) top, cell (2) sliding connection in lift groove (5) are close to detect passageway (12) one end, depression bar (51) with cell (2) fixed connection, fixedly connected with rubber cap (52) in lift groove (5), rubber cap (52) with cell (2) match.
2. The food safety detector of claim 1, wherein: the processing grooves (22) are designed in a plurality of ways, the processing grooves (22) are arranged on the mounting plate (21) at equal intervals, the structures in the processing grooves (22) are the same, and the mounting plate (21) is connected with the detection groove (11) in a sliding mode.
3. The food safety detector of claim 1, wherein: install evenly distributed's pilot lamp (53) on detection main part (1), pilot lamp (53) with detection channel (12) one-to-one, install push type switch (54) in detection channel (12), push type switch (54) with pilot lamp (53) electricity is connected.
4. The food safety detector of claim 1, wherein: a return pipe (55) is fixedly connected to the rubber cap (52), and one end, far away from the rubber cap (52), of the return pipe (55) extends into the reagent pipe (25) and the operation pipe (24) in sequence.
5. The food safety detector according to claim 2, wherein: install evenly distributed's water pipe (6) in mounting panel (21), water pipe (6) and external water supply pipe connection, water pipe (6) extend to rubber cap (52) inside is equipped with the opening, transfer line (32) are close to air pump (4) one end fixedly connected with drain pipe (61).
6. The food safety detector of claim 5, wherein: a water valve switch (7) is installed in the middle of the water pipe (6), and the water valve switch (7) is hinged to the pressure lever (51).
7. The food safety detector of claim 1, wherein: be located back flow (55) in operation pipe (24), reagent pipe (25) are equipped with the opening, guide screw thread (8) have all been seted up at operation pipe (24), reagent pipe (25) top, and the opening of back flow (55) is located guide screw thread (8), is close to the tip at operation pipe (24) or reagent pipe (25) top, guide screw thread (8) guide part rivers are from back flow (55) opening outflow back, do the screw motion at operation pipe (24) or reagent pipe (25) lateral wall.
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| CN202211298578.0A CN115356180B (en) | 2022-10-24 | 2022-10-24 | Food safety detector |
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