A microfluidic full-automatic detection equipment for milk powder detection
By combining a peristaltic pump with an ultrasonic pulverizing unit, along with anti-clogging components and nanofibrillary design in the distribution layer, the problems of test result deviation and clogging in milk powder testing equipment have been solved, achieving automation, high efficiency, and stability in milk powder testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG DEZHENG DAIRYING CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-21
Smart Images
Figure CN224535983U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food testing technology, and in particular to a microfluidic fully automated testing device for milk powder testing. Background Technology
[0002] Microfluidic fully automated detection equipment is a precision analytical instrument based on microfluidic technology. It integrates fully automated functions such as sample introduction, reaction, and detection by precisely controlling the flow of microscale fluids within a chip. It can achieve rapid, high-throughput, and intelligent detection of biological, chemical, and other samples.
[0003] The fully automated microfluidic testing equipment for milk powder is a microfluidic instrument specifically designed for milk powder quality testing. It precisely controls the flow and reaction of microscale milk powder solution within the chip channel through an automated process. The milk powder sample solution is quantitatively delivered using a micropump / valve device, and undergoes a specific reaction with the detection reagent in the reaction unit integrated into the chip. The signal is then captured in real time by optical / electrochemical sensors, and the detection results of milk powder components (such as nutrients, contaminants, etc.) are automatically obtained.
[0004] In existing technologies, some fully automated microfluidic testing equipment suffers from cumbersome and time-consuming processes due to existing milk powder testing technologies, such as offline testing combined with manual operation. Although semi-automatic microfluidic chips can automate some steps, the external pumps and valves used to control the fluid result in low integration and high cost. Furthermore, their hydrophobic surfaces easily adsorb milk fat, reducing test reproducibility. High-viscosity milk powder solutions can easily clog channels, interfering with the testing process and leading to deviations in test results. This makes it difficult to meet the real-time monitoring requirements of the production line and greatly affects testing efficiency. Therefore, a fully automated microfluidic testing device for milk powder testing is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a microfluidic fully automated detection device for milk powder testing, aiming to improve the problem of detection result deviation in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: A fully automated microfluidic detection device for milk powder testing includes a carrier, a detection mechanism fixedly connected to the top of the carrier, a fixing mechanism fixedly connected to the top of the carrier, a cooling fan disposed on the right side of the carrier, the detection mechanism including a peristaltic pump, an ultrasonic pulverizing unit fixedly connected to the front side of the peristaltic pump, a sample chamber fixedly connected to the top of the carrier, a delivery tube fixedly connected to the front side of the top of the carrier, a detection layer disposed on the top of the carrier, a reaction layer disposed on the top of the detection layer, a distribution layer disposed on the top of the reaction layer, multiple anti-clogging components fixedly connected to the bottom of the distribution layer, and an illumination lamp fixedly connected to the rear side of the top of the carrier. Through the above technical solution: the carrier serves as the basic support, and the peristaltic pump of the detection mechanism on it, in conjunction with the ultrasonic pulverizing unit, can process milk powder samples. The sample chamber and the transfer tube assist in sample transmission. The detection layer, reaction layer, and distribution layer constitute the core detection system. The anti-blocking component at the bottom of the distribution layer prevents channel blockage. The fixing mechanism ensures stable operation. The cooling fan maintains a suitable equipment temperature, and the light source provides a light source for detection, thus realizing the automated and accurate detection of milk powder.
[0007] As a further description of the above technical solution: The anti-clogging component includes a diversion pipe, the exterior of which is fixedly connected to the bottom inner wall of the distribution layer, the inner wall of the reaction layer is fixedly connected to a plurality of nanofibers, the exterior of the delivery pipe is threadedly connected to a filter box, the inner wall of the filter box is fixedly connected to a filter screen, and the exterior of the filter box is fixedly connected to a permanent magnet ring. Through the above technical solution: the anti-clogging component uses a multi-structure collaborative anti-clogging mechanism, the diversion pipe is distributed at the bottom of the distribution layer to achieve reasonable fluid distribution, the nanofibers on the inner wall of the reaction layer reduce the adhesion of substances such as milk fat, the filter box on the conveying pipe has a built-in filter screen to intercept impurities, and its external permanent magnet ring can adsorb magnetic particles. With multiple measures working together, it effectively prevents high-viscosity milk powder solution from clogging the channel during the detection process.
[0008] As a further description of the above technical solution: The fixing mechanism includes a fixing box, the bottom of which is fixedly connected to the top of the carrier. A strap is rotatably connected to the left side of the fixing box. Multiple limiting holes are provided inside the strap. Multiple springs are fixedly connected to the top inner wall of the fixing box. A driven block is fixedly connected to the bottom of the spring. Two driven posts are fixedly connected to the bottom of the driven block. A linkage assembly is provided inside the fixing box. Multiple protrusions are fixedly connected to the front side of the driven block. The above technical solution is as follows: the fixing mechanism is based on the fixing box, and a stable fixation is achieved through the cooperation of multiple components. The strap can wrap around and fix the equipment components, the limiting hole facilitates the adjustment of tightness, the spring cooperates with the driven block and driven column to provide buffering and pressure, and the linkage component is connected to the protrusion, which can achieve linkage fixation when the strap is tightened, effectively preventing the components from loosening during equipment operation and ensuring the stability and reliability of the milk powder testing process.
[0009] As a further description of the above technical solution: The linkage component includes a linkage groove, the outside of which is opened inside the fixed box. Two springs are fixedly connected to the inner walls of the left and right sides of the linkage groove, and a lever is fixedly connected to the adjacent side of the two springs. A recess is fixedly connected to the bottom of the lever. Through the above technical solution: the linkage component constructs a linkage space through the linkage groove, and the springs on the left and right sides connect to the lever, giving it elastic reset capability. The concave block at the bottom of the lever cooperates with other components to realize the linkage of each component during operations such as belt adjustment, thereby enhancing the overall stability of the fixing mechanism.
[0010] As a further description of the above technical solution: The bottom left side of the conveying pipe is fixedly connected to the top of the distribution layer, and the bottom of the plurality of branch pipes is fixedly connected to the top of the reaction layer. The above technical solution ensures smooth transmission of milk powder test samples: the transfer tube is closely connected to the distribution layer, and the diversion tube is closely connected to the reaction layer. The transfer tube delivers the sample to the distribution layer, and the diversion tube orderly diverts it to the reaction layer.
[0011] As a further description of the above technical solution: The inner wall of the limiting hole is in contact with the outer side of the driven post, and the outer side of the driven block is slidably connected to the inside of the fixed box; Through the above technical solution, the limiting hole and the driven column are precisely matched, and the strap is limited through their contact. The driven block slides flexibly in the fixed box and works together to ensure the stable adjustment and reliable fixation of the fixing mechanism.
[0012] As a further description of the above technical solution: The bottom of the concave block and the top of the convex block are in contact, and the outer part of the lever block is slidably connected to the inside of the linkage groove; Through the above technical solution, the concave block and the convex block make contact with each other to achieve force transmission, and the pusher block slides in the linkage groove. The three work together to achieve effective linkage between the components of the fixing mechanism and enhance the fixing stability.
[0013] As a further description of the above technical solution: The inner wall of the strap is in contact with the outside of the transmission tube, and a connection port is provided on the front side of the carrier; The above technical solution allows the inner wall of the strap to fit snugly against the outside of the transfer tube, securing the tube and preventing it from shifting or shaking during sample transfer. The connection port on the front of the carrier provides a convenient interface for external piping and other components of the equipment.
[0014] This utility model has the following beneficial effects: 1. In this invention, the peristaltic pump generates power upon startup, sequentially delivering the mixture to the ultrasonic pulverizing unit. The ultrasonic pulverizing unit refines the milk powder particles through high-frequency vibration. Subsequently, the mixture enters the distribution layer via the peristaltic pump and the delivery pipe. The diversion pipe at the bottom of the distribution layer diverts the mixture to multiple reaction channels. The nanofibrils on the inner wall of the reaction layer generate local turbulence as the liquid flows through. The filter box on the delivery pipe intercepts larger particle impurities through the filter screen, while the permanent magnet ring adsorbs iron foreign matter present in the milk powder. This achieves the refinement of milk powder particles through the ultrasonic pulverizing unit, combined with the multi-channel diversion design of the distribution layer, significantly improving sample processing efficiency and detection throughput. Relying on the triple mechanism of nanofibril turbulence anti-clogging, filter screen interception of impurities, and permanent magnet ring adsorption of foreign matter, the flow path is ensured in all aspects, avoiding blockage and interference with the detection process.
[0015] 2. In this utility model, by moving the lever, the concave block is slid, thereby allowing the strap to pass around the outside of the conveyor tube. Then, by releasing the lever, the concave block, under the action of spring two, contacts the convex block and applies downward squeezing force, forcing the driven block to compress spring one and descend, causing the driven post to engage with the corresponding limiting hole. Moving the lever to the left or right causes the concave block to disengage from the convex block, and spring one elastically resets, pushing the driven block upward, and the driven post disengages from the limiting hole. This achieves rapid adjustment and precise locking of the strap's tightness. During disassembly or adjustment, moving the lever quickly releases the limiting, and spring one automatically resets. The entire process requires no additional tools and is simple and efficient to operate. Attached Figure Description
[0016] Figure 1 This is a three-dimensional schematic diagram of a microfluidic fully automated detection device for milk powder testing proposed in this utility model; Figure 2 This is a schematic diagram of the shunt tube structure of a microfluidic fully automated detection device for milk powder testing proposed in this utility model; Figure 3 This is a schematic diagram of the structure of nanofibrils in a microfluidic fully automated detection device for milk powder detection proposed in this utility model; Figure 4 This is a schematic diagram of the filter box of a microfluidic fully automated detection device for milk powder testing proposed in this utility model; Figure 5 This is a schematic diagram of the fixing box of a microfluidic fully automatic detection device for milk powder detection proposed in this utility model; Figure 6 for Figure 5 Enlarged view of point A in the middle.
[0017] Legend: 1. Carrier; 2. Detection Mechanism; 21. Peristaltic Pump; 22. Ultrasonic Grinding Unit; 23. Sample Chamber; 24. Transfer Tube; 25. Detection Layer; 26. Reaction Layer; 27. Distribution Layer; 28. Anti-clogging Component; 2801. Diverter Tube; 2802. Nanofibrils; 2803. Filter Box; 2804. Filter Screen; 2805. Permanent Magnet Ring; 29. Illuminator; 3. Fixing Mechanism; 31. Fixing Box; 32. Strap; 33. Limiting Hole; 34. Spring 1; 35. Driven Block; 36. Driven Column; 37. Linkage Component; 3701. Linkage Groove; 3702. Spring 2; 3703. Toggle Block; 3704. Concave Block; 38. Protruding Block; 4. Cooling Fan; 5. Connection Port. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Reference Figures 1 to 3This utility model provides an embodiment of a microfluidic fully automatic detection device for milk powder testing, comprising a carrier 1, which provides fixation and support for the upper device. A detection mechanism 2 is fixedly connected to the top of the carrier 1, which is used to detect milk powder. A fixing mechanism 3 is fixedly connected to the top of the carrier 1, which is used to fix a conveying tube 24. A cooling fan 4 is provided on the right side of the carrier 1 to dissipate heat from the internal components. The detection mechanism 2 includes a peristaltic pump 21, which provides power to the milk powder and can transport the milk powder mixture inside the sample chamber 23. An ultrasonic pulverizing unit 22 is fixedly connected to the front of the peristaltic pump 21, which can pulverize the milk powder mixture inside the sample chamber 23, thereby enabling it to be conveyed by the peristaltic pump 21. The top of the carrier 1 is fixedly connected to the carrier 1. A sample compartment 23 is fixedly connected to the carrier 1. The sample compartment 23 is used to place the milk powder sample to be tested. The milk powder and buffer solution are mixed in a ratio of 1:10. A transfer tube 24 is fixedly connected to the top front of the carrier 1. The transfer tube 24 is used to transfer the milk powder sample to be tested. A detection layer 25 is set on the top of the carrier 1. The detection layer 25 measures the absorbance change of each channel by reflectance photometry. A reaction layer 26 is set on the top of the detection layer 25. The reaction layer 26 is used to provide a reaction for the milk powder. A distribution layer 27 is set on the top of the reaction layer 26. The distribution layer 27 is used to split and detect the milk powder transferred by the peristaltic pump 21 and the transfer tube 24. Multiple anti-clogging components 28 are fixedly connected to the bottom of the distribution layer 27. A light lamp 29 is fixedly connected to the top rear of the carrier 1. The light lamp 29 can provide illumination for the device, which facilitates the detection of milk powder. Specifically, the carrier provides fixation and support for all components of the equipment, the cooling fan on the right side ensures a suitable internal temperature, the detection mechanism integrates multiple components, the peristaltic pump and ultrasonic pulverizing unit work together to achieve the delivery and pulverization of the milk powder sample mixture, the sample chamber mixes milk powder and buffer solution at a 1:10 ratio, and the transfer tube is responsible for transporting the sample; the detection layer, reaction layer and distribution layer have clearly defined functions, respectively completing absorbance measurement, sample reaction and split detection, while the anti-clogging component at the bottom of the distribution layer prevents blockage during the detection process; the fixing mechanism is used to fix the transfer tube to ensure stable transmission; the illumination lamp provides lighting to assist in the milk powder detection work, and the entire set of equipment realizes the automation and precision of the milk powder detection process.
[0020] Reference Figures 2 to 4The anti-clogging component 28 includes a diversion pipe 2801, which can divert the milk powder mixture for easy parallel flow detection. Multiple diversion pipes 2801 are externally fixedly connected to the bottom inner wall of the distribution layer 27, which provides fixation and support for the diversion pipes 2801. Multiple nanofibrils 2802 are fixedly connected to the inner wall of the reaction layer 26. The nanofibrils 2802 can generate local turbulence inside each diversion pipe 2801, preventing milk fat particle deposition and transmission. The external threaded connection of the feed pipe 24 is a filter box 2803, which provides installation space for the internal anti-clogging component 28. The threaded connection facilitates installation, disassembly and maintenance. The inner wall of the filter box 2803 is fixedly connected to a filter screen 2804, which can filter the milk powder when the feed pipe 24 is conveying it. The external fixed connection of the filter box 2803 is a permanent magnet ring 2805, which can adsorb iron objects generated during the production of milk powder when the milk powder is conveyed. Specifically, the anti-clogging component 28 prevents the milk powder mixture from clogging through the coordinated operation of multiple parts. The diversion pipe 2801 is fixed to the bottom of the distribution layer 27 to divert the mixture for parallel flow detection. The nanofibrils 2802 on the inner wall of the reaction layer 26 generate local turbulence to prevent the deposition of milk fat particles. The filter box 2803 outside the conveying pipe 24 is threaded for easy installation and maintenance. Its built-in filter screen 2804 filters the milk powder during conveying, while the external permanent magnet ring 2805 adsorbs ferrous objects mixed in during milk powder production. Each component has a clear division of labor, from diversion and anti-deposition to filtration and adsorption, comprehensively ensuring a smooth milk powder detection process and improving the stability and reliability of the detection.
[0021] Reference Figure 1 , Figure 5 and Figure 6The fixing mechanism 3 includes a fixing box 31, which provides fixing and support for the internal components. The bottom of the fixing box 31 is fixedly connected to the top of the carrier 1, and the carrier 1 provides fixing and support for the fixing box 31. A strap 32 is rotatably connected to the left side of the fixing box 31. The strap 32 is used to fix the outside of the conveyor tube 24. Multiple limiting holes 33 are opened inside the strap 32. The limiting holes 33 cooperate with the driven post 36 to limit and fix the strap 32. Multiple springs 34 are fixedly connected to the top inner wall of the fixing box 31. The springs 34 have an elastic function and provide elastic support for its driven block 35. The bottom of the spring 34 is fixedly connected to a driven block 35, which provides fixation and support for the driven post 36. Two driven posts 36 are fixedly connected to the bottom of the driven block 35. The driven posts 36 are used to engage with the inside of the limiting hole 33 to fix the strap 32. The inside of the fixing box 31 is provided with a linkage component 37. Multiple protrusions 38 are fixedly connected to the front side of the driven block 35. The protrusions 38 are used to receive the pressure from the concave block 3704, thereby descending and stretching the spring 34. At the same time, the driven posts 36 are driven to engage with the corresponding limiting hole 33, thereby fixing the strap 32. Specifically, the fixing mechanism 3 achieves stable fixation through the coordinated action of multiple components. The fixing box 31 is fixed to the top of the carrier 1, providing support for the internal components. The strap 32, rotatably connected to its left side, is used to fix the conveyor tube 24. The limiting hole 33 on the strap 32 cooperates with the driven post 36 to achieve limiting fixation. Spring 34 provides elastic support for the driven block 35, which in turn fixes the driven post 36. The linkage component 37 interacts with the protrusion 38 on the front side of the driven block 35. When the protrusion 38 is squeezed by the concave block, the driven block 35 descends, stretching the spring 34 and causing the driven post 36 to engage with the limiting hole 33, thereby completing the fastening of the strap 32 and ensuring the stability of the conveyor tube 24 during equipment operation, thus ensuring the smooth progress of milk powder testing.
[0022] The linkage assembly 37 includes a linkage groove 3701, which provides fixation and support for the second spring 3702. The linkage groove 3701 is externally formed inside the fixing box 31, which provides space for the linkage groove 3701. The left and right inner walls of the linkage groove 3701 are respectively fixedly connected to the second spring 3702. The second spring 3702 has an elastic function, providing elastic support for its lever 3703, keeping it in the middle position so that its concave block 3704 just presses against the protrusion 38. The adjacent sides of the two second springs 3702 are fixedly connected. With a lever 3703 attached, when it is necessary to adjust the length of the strap 32 or release the limit on the transmission tube 24, by moving the lever 3703 to the left or right, the concave block 3704 can be slid, releasing the limit on the protrusion 38. Then, the driven block 35 can be elastically reset and rise by the spring 34, thereby driving the driven post 36 to disengage from the inside of the limiting hole 33. The bottom of the lever 3703 is fixedly connected to the concave block 3704, which is used to engage and squeeze the protrusion 38, thereby causing the driven block 35 to be in a descending state. Specifically, the linkage component 37 is a key linkage component of the fixing mechanism 3. The linkage groove 3701 is opened in the fixing box 31 to provide installation space and support for the second spring 3702. The second spring 3702 provides elastic support for the toggle block 3703, keeping it in the middle position and ensuring that the concave block 3704 can press against the protrusion 38. When it is necessary to adjust the strap 32 or release the limit on the transmission tube 24, the toggle block 3703 is moved, causing the concave block 3704 to slide, releasing the pressure on the protrusion 38. The driven block 35 returns to its original position and rises under the elastic action of the first spring 34, and the driven post 36 disengages from the limiting hole 33. Conversely, the strap 32 can be fixed, thereby flexibly controlling the fixing and loosening of the transmission tube 24.
[0023] Reference Figure 1 and Figure 5The bottom left side of the conveyor pipe 24 is fixedly connected to the top of the distribution layer 27. The conveyor pipe 24 can divert the milk powder mixture conveyed by it. The bottoms of multiple diversion pipes 2801 are fixedly connected to the top of the reaction layer 26. The reaction layer 26 performs parallel detection on each diversion pipe 2801 to improve detection efficiency. The inner wall of the limiting hole 33 is in contact with the outside of the driven post 36. The driven post 36 is used to snap into the inside of the limiting hole 33 to fix the strap 32. The outside of the driven block 35 is slidably connected to the inside of the fixing box 31. The fixing box 31 is... The driven block 35 provides an opening space. The bottom of the concave block 3704 and the top of the protrusion 38 are in contact. The concave block 3704 is used to engage and squeeze the protrusion 38, thereby causing the driven block 35 to be in a lowered state. The external sliding connection of the push block 3703 is in the interior of the linkage groove 3701. The linkage groove 3701 provides an opening space for the push block 3703. The inner wall of the strap 32 is in contact with the outside of the transmission tube 24. The strap 32 is used to fix the transmission tube 24. A connection port 5 is provided on the front side of the carrier 1. The connection port 5 is used to connect an external device and supply power to the device. Specifically, the device achieves efficient detection and stable fixation through the collaboration of multiple components. The conveying pipe 24 is connected to the distribution layer 27, and the diversion pipe 2801 is connected to the reaction layer 26, which can divert and detect the milk powder mixture in parallel, improving efficiency. In the fixing mechanism, the driven column 36 cooperates with the limiting hole 33. When the concave block 3704 squeezes the protrusion 38, the driven block 35 drives the driven column 36 to be inserted into the limiting hole 33, thereby fixing the conveying pipe 24 to the strap 32. The limiting can be released by moving the toggle block 3703. The connection port 5 on the front side of the carrier 1 is used to connect to the external device for power supply. All components cooperate with each other to ensure the stable operation and efficient work of the milk powder detection equipment.
[0024] Working principle: In use, milk powder and buffer solution are first mixed in sample chamber 23 at a ratio of 1:10. After the peristaltic pump 21 is started, the mixture is transported to the ultrasonic pulverizing unit 22. The ultrasonic pulverizing unit 22 refines the milk powder particles through high-frequency vibration to ensure the uniformity of the test sample. Then, the mixture enters the distribution layer 27 through the peristaltic pump 21 and the delivery tube 24. The diversion tube 2801 at the bottom of the distribution layer 27 divides the mixture into multiple reaction channels. The nanofibrils 2802 on the inner wall of the reaction layer 26 generate local turbulence when the liquid flows through, preventing milk fat particles from depositing and clogging the pipes. The filter box 2803 on the delivery tube 24 intercepts larger particulate impurities through the filter screen 2804. At the same time, the permanent magnet ring 2805 adsorbs iron foreign objects present in the milk powder. The triple anti-clogging design ensures smooth flow. The detection layer 25 measures the absorbance change of each channel by reflectance photometry. Combined with the chemical reaction results of the reaction layer 26, the accurate detection of milk powder components is achieved.
[0025] When it is necessary to fix the conveyor tube 24, by moving the lever 3703, the concave block 3704 is slidable, releasing the restriction on the strap 32. Then, the strap 32 is wrapped around the outside of the conveyor tube 24 and pulled to the right to adjust the strap 32 to a suitable tightness. After adjustment, by releasing the lever 3703, the concave block 3704, under the action of spring 3702, contacts the protrusion 38 and applies a downward squeezing force, forcing the driven block 35 to compress the spring 34 and descend, driving the driven column 3... 6. Insert the corresponding limiting hole 33 to lock the position of the strap 32. When it is necessary to adjust or disassemble the conveyor tube 24, move the lever 3703 to the left or right, causing the concave block 3704 to disengage from the protrusion 38. The spring 34 elastically resets and pushes the driven block 35 to rise. The driven post 36 disengages from the limiting hole 33, and the strap 32 can slide freely. This structure achieves quick locking, flexible adjustment, and convenient disassembly of the conveyor tube 24 through spring elastic linkage and mechanical locking design, improving equipment maintenance efficiency.
[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A fully automated microfluidic detection device for milk powder testing, comprising a carrier (1), characterized in that: The top of the carrier (1) is fixedly connected to a detection mechanism (2), the top of the carrier (1) is fixedly connected to a fixing mechanism (3), and a cooling fan (4) is provided on the right side of the carrier (1). The detection mechanism (2) includes a peristaltic pump (21), an ultrasonic pulverizing unit (22) is fixedly connected to the front side of the peristaltic pump (21), a sample chamber (23) is fixedly connected to the top of the carrier (1), a delivery tube (24) is fixedly connected to the front side of the top of the carrier (1), a detection layer (25) is provided on the top of the carrier (1), a reaction layer (26) is provided on the top of the detection layer (25), a distribution layer (27) is provided on the top of the reaction layer (26), a plurality of anti-blocking components (28) are fixedly connected to the bottom of the distribution layer (27), and a light lamp (29) is fixedly connected to the rear side of the top of the carrier (1).
2. The microfluidic fully automated detection device for milk powder detection according to claim 1, characterized in that: The anti-clogging component (28) includes a diversion pipe (2801), the exterior of which is fixedly connected to the bottom inner wall of the distribution layer (27), the inner wall of the reaction layer (26) is fixedly connected to a plurality of nanofibrils (2802), the exterior of the delivery pipe (24) is threadedly connected to a filter box (2803), the inner wall of the filter box (2803) is fixedly connected to a filter screen (2804), and the exterior of the filter box (2803) is fixedly connected to a permanent magnet ring (2805).
3. The microfluidic fully automated detection device for milk powder detection according to claim 2, characterized in that: The fixing mechanism (3) includes a fixing box (31), the bottom of which is fixedly connected to the top of the carrier (1). A strap (32) is rotatably connected to the left side of the fixing box (31). Multiple limiting holes (33) are provided inside the strap (32). Multiple springs (34) are fixedly connected to the top inner wall of the fixing box (31). A driven block (35) is fixedly connected to the bottom of the spring (34). Two driven columns (36) are fixedly connected to the bottom of the driven block (35). A linkage assembly (37) is provided inside the fixing box (31). Multiple protrusions (38) are fixedly connected to the front side of the driven block (35).
4. The microfluidic fully automated detection device for milk powder detection according to claim 3, characterized in that: The linkage component (37) includes a linkage groove (3701), the outside of which is opened inside the fixed box (31). The left and right inner walls of the linkage groove (3701) are respectively fixedly connected to springs (3702). A toggle block (3703) is fixedly connected to the adjacent side of the two springs (3702). A recessed block (3704) is fixedly connected to the bottom of the toggle block (3703).
5. The microfluidic fully automated detection device for milk powder detection according to claim 2, characterized in that: The bottom left side of the transfer tube (24) is fixedly connected to the top of the distribution layer (27), and the bottom of the plurality of diversion tubes (2801) is fixedly connected to the top of the reaction layer (26).
6. The fully automated microfluidic detection device for milk powder testing according to claim 3, characterized in that: The inner wall of the limiting hole (33) is in contact with the outside of the driven post (36), and the outside of the driven block (35) is slidably connected to the inside of the fixed box (31).
7. The fully automated microfluidic detection device for milk powder testing according to claim 4, characterized in that: The bottom of the concave block (3704) and the top of the protrusion (38) are in contact, and the outer side of the lever block (3703) is slidably connected to the inside of the linkage groove (3701).
8. The fully automated microfluidic detection device for milk powder testing according to claim 3, characterized in that: The inner wall of the strap (32) is in contact with the outside of the transmission tube (24), and the front side of the carrier (1) is provided with a connection port (5).