A high-throughput multi-card food safety testing equipment sampling device

Abstract

The invention discloses a high-throughput multiple-card food safety detection equipment sampling device, comprising a sampling turntable and a sampling tray slidably matched with a host, the sampling turntable is rotatably connected to the sampling tray through a rotating shaft, and a stepper motor capable of driving the sampling turntable to rotate is arranged on the sampling tray; the top surface of the sampling turntable is provided with a plurality of alignment grooves, and the bottom surface of the sampling tray is provided with alignment convexities corresponding to the alignment grooves one by one, and the alignment convexities can be engaged with the corresponding alignment grooves; a photoelectric controller is also arranged on the sampling tray, and a light blocking plate is fixedly arranged on the bottom surface of the sampling turntable, and the light blocking plate can block the photoelectric controller when the sampling turntable rotates; the photoelectric controller and the stepper motor are electrically connected to a program control module respectively. The high-throughput multiple-card food safety detection equipment sampling device of the invention improves the efficiency of food safety detection.

Description

Technical Field

[0001] The invention relates to the technical field of food testing equipment, in particular to a sample feeding device for high-throughput multi-card food safety testing equipment. Background Art

[0002] Food safety is related to public health and is taken seriously by the country and the whole society. Food safety testing is an important means to ensure table safety. Among the current similar instruments for rapid food safety testing, there are single instruments for detecting dry chemical test cards, fluorescence detectors, and spectrophotometers. Among them, the detectors used to detect dry chemical test cards and immunocolloidal gold test cards are single-card sampling, with low work efficiency, and most of them are qualitative tests; fluorescence detectors are single-card sampling and visual inspection, and work efficiency and accuracy cannot be guaranteed. Existing food safety rapid testing equipment usually uses single-card sampling for testing, and one card entry position can only be used to enter one type of test card for machine testing, and multiple test cards cannot be entered. Each card cannot be tested on multiple samples of the same batch, which brings problems such as single-card detection operation and low work efficiency, which affects the application of comprehensive detection technology.

[0003] In addition, existing food safety testing can only achieve ideal test results in the laboratory using a variety of instruments, which is obviously insufficient to meet the current requirements of food safety testing and has the following disadvantages: (1) It requires a variety of laboratory testing equipment and professional personnel to complete the test; (2) Most of the testing equipment is fixed laboratory equipment, which is inconvenient to carry to the site for testing, and the test is slow to complete, generally taking more than 1 hour to complete; (3) Laboratory testing equipment only has testing functions and cannot be connected to the supervision platform to upload monitoring data; (4) Existing rapid testing instruments have single functions and low work efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a high-throughput multi-card food safety detection equipment sampling device to solve the problems existing in the above-mentioned prior art and improve the efficiency of food safety detection.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a high-throughput multi-card food safety detection equipment sampling device, comprising a sampling turntable and a sampling tray slidably matched with a main machine, the sampling turntable is rotatably connected to the sampling tray through a rotating shaft, and the sampling tray is provided with a stepper motor capable of driving the sampling turntable to rotate; the top surface of the sampling turntable is provided with a plurality of alignment grooves, and the bottom surface of the sampling tray is provided with alignment convexities corresponding to the alignment grooves one by one, and the alignment convexities can be engaged with the corresponding alignment grooves; a photoelectric controller is also provided on the sampling tray, and a light blocking plate is fixedly provided on the bottom surface of the sampling turntable, and the light blocking plate can shield the photoelectric controller when the sampling turntable rotates; the photoelectric controller and the stepper motor are respectively electrically connected to a program control module.

[0007] Preferably, guide rails are fixedly disposed on the outer side walls on both sides of the sample injection tray, and rail grooves are disposed on the side walls of the main machine corresponding to the guide rails, and the guide rails are slidably matched with the corresponding rail grooves.

[0008] Preferably, an elastic lock is provided on the outer side wall at the rear end of the sample injection tray, and a push point capable of controlling the entry and exit of the elastic lock is fixedly provided on the outer side wall at the front end of the sample injection tray.

[0009] Preferably, a driving pulley is fixedly provided on the output shaft of the stepper motor, and a transmission belt is wound around the driving pulley and the injection turntable.

[0010] Preferably, a convex surface is arranged in the center of the top surface of the sample injection turntable, a concave surface is arranged on the bottom surface of the sample injection turntable corresponding to the convex surface, the alignment groove is arranged on the convex surface, and the alignment convex is arranged on the concave surface; a magnetic block is also fixed in the center of the concave surface.

[0011] Preferably, a plurality of card slots are arranged on the top surface of the sample injection tray, and card removal top holes corresponding to the card slots are evenly arranged between the concave surface and the edge of the sample injection tray; the card removal top holes are communicated with the corresponding card slots.

[0012] Compared with the prior art, the present invention has achieved the following technical effects:

[0013] The high-throughput multi-card food safety detection equipment sampling device of the present invention improves the efficiency of food safety detection. The high-throughput multi-card food safety detection equipment sampling device of the present invention can meet the sampling of more than 4 detection cards, and provides a key technology for realizing the detection of multiple functions of one detection instrument. It is possible to integrate the detection functions of detection instruments such as chromatograph analyzers, spectrophotometers, and fluorescence analyzers, reduce the instrument investment of the detection agency, simplify the detection operation, and save operators. Since each sample injection plate can be batch injected, high-throughput detection reduces a large number of repeated operation processes, avoids errors caused by human factors, and improves the accuracy rate; shortens the detection time, and can significantly improve work efficiency. The host of the high-throughput multi-card food safety detection equipment sampling device of the present invention is configured with an intelligent operating system and various detection module software, which automatically completes sampling detection, detection result determination, detection data upload, data storage, and docking with the supervision platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a structural schematic diagram of the sample introduction device of the high-throughput multi-card food safety detection equipment of the present invention;

[0016] Figure 2 It is a partial structural schematic diagram of the sample introduction device of the high-throughput multi-card food safety detection equipment of the present invention;

[0017] Figure 3 It is a structural schematic diagram of the sample injection turntable in the sample injection device of the high-throughput multi-card food safety detection equipment of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the high-throughput multi-card food safety detection equipment sample introduction device of the present invention being arranged on a host;

[0019] Figure 5 It is a schematic diagram of the structure of the colloidal gold card sample introduction plate in the sample introduction device of the high-throughput multi-card food safety detection equipment of the present invention;

[0020] Figure 6 It is a schematic diagram of the structure of the reflective fluorescent chuck in the sample introduction device of the high-throughput multi-card food safety detection equipment of the present invention;

[0021] Figure 7 It is a schematic diagram of the structure of the chemical percolation cartridge in the sampling device of the high-throughput multi-card food safety detection equipment of the present invention;

[0022] Figure 8 It is a schematic diagram of the structure of a dry chromatography cartridge in a sample introduction device of a high-throughput multi-card food safety testing device of the present invention;

[0023] Among them: 1. Sample tray; 2. Guide rail; 3. Rail groove; 4. Sample turntable; 5. Central hole of turntable; 6. Drive belt; 7. Convex surface; 8. Alignment groove; 9. Reset control circuit; 10. Motor circuit; 11. Elastic lock; 12. Stepper motor; 13. Rotating shaft; 14. Photoelectric controller; 15. In and out button; 16. Bottom of sample turntable; 17. Big head screw; 18. Light blocking plate; 19. Front of main machine; 20. Computer touch screen; 21. Sample tray; 22. Colloidal gold card sample tray; 23. Loading arrow; 24. Colloidal gold card slot; 25. Reflection fluorescence chuck; 26. Reflection fluorescence card slot; 27. Chemical infiltration chuck; 28. Chemical infiltration card slot; 29. ​​Bottom of sample tray; 30. Top hole for taking card; 31. Concave surface; 32. Alignment convex; 33. Magnetic block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] The purpose of the present invention is to provide a high-throughput multi-card food safety detection equipment sampling device to solve the problems existing in the above-mentioned prior art and improve the efficiency of food safety detection.

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figures 1 to 8 As shown: This embodiment provides a high-throughput multi-card food safety detection equipment sampling device, including a sampling turntable 4 and a sampling tray 1 that slides with the main machine.

[0028] The outer walls on both sides of the sample tray 1 are respectively fixed with guide rails 2, and the side walls of the host are provided with rail grooves 3 corresponding to the guide rails 2, and the guide rails 2 are slidably matched with the corresponding rail grooves 3. An elastic lock 11 is provided on the outer wall at the rear end of the sample tray 1, and a push point 15 capable of controlling the entry and exit of the elastic lock 11 is fixed on the outer wall at the front end of the sample tray 1.

[0029] The sample injection turntable 4 is rotatably connected to the sample injection tray 1 through a rotating shaft 13. There is a turntable central hole 5 in the center of the bottom surface 16 of the sample injection turntable. The rotating shaft 13 rotates with the turntable central hole 5. The sample injection turntable 4 is connected and fixed by the turntable central hole 5 and the turntable rotating shaft 13 through a big head screw 17, so that the sample injection turntable 4 cannot escape from the turntable rotating shaft 13, but can rotate flexibly; a stepper motor 12 that can drive the sample injection turntable 4 to rotate is provided on the sample injection tray 1; a driving pulley is fixed on the output shaft of the stepper motor 12, and a transmission belt 6 is wound around the driving pulley and the sample injection turntable 4.

[0030] The top surface of the sample injection turntable 4 is provided with a plurality of alignment grooves 8, and a convex surface 7 is provided in the center of the top surface of the sample injection turntable 4, and the alignment grooves 8 are provided on the convex surface 7. A photoelectric controller 14 is also provided on the sample injection tray 1, and a light blocking plate 18 is fixedly provided on the bottom surface 16 of the sample injection turntable. When the sample injection turntable 4 rotates, the light blocking plate 18 can block the photoelectric controller 14; the photoelectric controller 14 is electrically connected to the program control module through the reset control circuit 9, and the stepper motor 12 is electrically connected to the program control module through the motor circuit 10.

[0031] The bottom surface 29 of the sample injection disk is provided with an alignment protrusion 32 which corresponds one to one with the alignment groove 8, and the alignment protrusion 32 can engage with the corresponding alignment groove 8; the bottom surface 29 of the sample injection disk is provided with a concave surface 31 corresponding to the convex surface 7, and the alignment protrusion 32 is arranged on the concave surface 31; a magnetic block 33 is also fixedly provided at the center of the concave surface 31, and a big head screw 17 is provided on the sample injection turntable 4 corresponding to the magnetic block 33, and when the sample injection disk 21 is arranged on the sample injection turntable 4, the magnetic block 33 can be adsorbed on the big head screw 17. The top surface of the sample injection tray 21 is provided with a plurality of card slots, and card removal top holes 30 corresponding to the card slots are evenly arranged between the concave surface 31 and the edge of the sample injection tray 21; the card removal top holes 30 are communicated with the corresponding card slots; the top surface of the sample injection tray 21 can have various different styles. According to the different styles of the top surface of the sample injection tray 21, the sample injection tray 21 can be divided into a colloidal gold card sample injection tray 22, a chemical infiltration chuck 27, a reflective fluorescence chuck 25 and a dry chromatography chuck, which can be expanded according to detection needs; a loading arrow 23 and a colloidal gold card slot 24 are arranged on the top surface of the colloidal gold card sample injection tray 22; a reflective fluorescence card slot 26 and a loading arrow 23 are arranged on the top surface of the reflective fluorescence chuck 25; a chemical infiltration card slot 28 and a loading arrow 23 are arranged on the top surface of the chemical infiltration chuck 27; a loading arrow 23 and a dry chromatography card slot are arranged on the top surface of the dry chromatography chuck.

[0032] The high-throughput multiple card food safety detection equipment sample introduction device of this embodiment adopts four different sample introduction plates 21, and the use process is the same. Taking the colloidal gold card sample introduction plate 22 as an example, the specific use process of the high-throughput multiple card food safety detection equipment sample introduction device of this embodiment is as follows:

[0033] First, configure and debug the instrument before use. Enter the standard information of the test items in the "Comprehensive Food Safety Detection and Analysis System" installed on the host computer through the computer touch screen 20 on the front of the host 19, and use the standard card to verify and debug accurately. When using, turn on the power switch, and select "Colloidal Gold Card Detection" according to the prompts in the "Comprehensive Food Safety Detection and Analysis System" interface through the computer touch screen 20. The test category is detected. Press the entry and exit button 15 lightly, and the sample tray 1 pops up; select the colloidal gold card sample tray 22, number the colloidal gold test cards to be tested, and put them into the colloidal gold card slot 24 in order; align the loading arrow 23 of the loaded test card with the entry and exit button 15 of the sample tray 1, and put it into the sample turntable 4. The convex surface 7 on the sample turntable 4 fits with the concave surface 31 on the back of the sample tray 21, and the alignment groove 8 fits with the alignment convex 32. The magnetic block 33 and the big head screw 17 attract each other to keep the sample tray 21 stable. Then click "Test" on the operation interface, the turntable will automatically position, and the test will be completed according to the instruction sequence. You can also perform the test according to the selected test card.

[0034] The present specification uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A high-throughput multi-card food safety testing equipment sampling device, characterized in that: The invention comprises a sample feeding disk, a sample feeding turntable and a sample feeding tray which is slidably matched with a main machine, wherein the sample feeding turntable is rotatably connected with the sample feeding tray via a rotating shaft, and a stepper motor which can drive the sample feeding turntable to rotate is arranged on the sample feeding tray; a plurality of alignment grooves are arranged on the top surface of the sample feeding turntable, and an alignment convex which corresponds to the alignment grooves of the sample feeding turntable one by one is arranged on the bottom surface of the sample feeding turntable, and the alignment convex of the sample feeding disk can be engaged with the alignment groove of the corresponding sample feeding turntable; a photoelectric controller is also arranged on the sample feeding tray, and a light blocking plate is fixedly arranged on the bottom surface of the sample feeding turntable, and the light blocking plate can shield the photoelectric controller when the sample feeding turntable rotates; the photoelectric controller and the stepper motor are electrically connected to a program control module respectively; A convex surface is arranged at the center of the top surface of the sample injection turntable, a concave surface is arranged at the bottom surface of the sample injection turntable corresponding to the convex surface of the sample injection turntable, an alignment groove of the sample injection turntable is arranged on the convex surface of the sample injection turntable, and an alignment convex of the sample injection turntable is arranged on the concave surface of the sample injection turntable; a magnetic block is also fixed at the center of the concave surface of the sample injection turntable; a large-head screw is arranged on the sample injection turntable corresponding to the magnetic block, and the magnetic block can be adsorbed on the large-head screw when the sample injection turntable is arranged on the sample injection turntable; The sample introduction plate is a colloidal gold card sample introduction plate, a chemical infiltration card, a reflective fluorescence card or a dry chromatography card, and the sample introduction device can implement the introduction of four different test cards: colloidal gold card, chemical infiltration card, reflective fluorescence card and dry chromatography card; The top surface of the sample injection tray is provided with a plurality of card slots, and card removal top holes corresponding to the card slots are evenly arranged between the concave surface of the sample injection tray and the edge of the sample injection tray; the card removal top holes are communicated with the corresponding card slots.

2. The high-throughput multi-card food safety testing equipment sampling device according to claim 1, characterized in that: The outer side walls on both sides of the sample injection tray are respectively fixed with guide rails, and the side walls of the main machine are provided with rail grooves corresponding to the guide rails, and the guide rails are slidably matched with the corresponding rail grooves.

3. The high-throughput multi-card food safety testing equipment sampling device according to claim 1, characterized in that: An elastic lock is arranged on the outer side wall at the rear end of the sample injection tray, and an entry and exit pressing point capable of controlling the elastic lock is fixedly arranged on the outer side wall at the front end of the sample injection tray.

4. The high-throughput multi-card food safety testing equipment sampling device according to claim 1, characterized in that: A driving pulley is fixedly arranged on the output shaft of the stepping motor, and a transmission belt is wound around the driving pulley and the injection turntable.

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