Environmental pollutant detection sensor based on fluorescent nano material

Abstract

The invention relates to an environmental pollutant detection sensor based on a fluorescent nano material, and relates to the technical field of pollutant detection. Comprising a containing box, a blocking ring coaxial with the containing box is arranged in the containing box, a working cavity is arranged in the space inside the blocking ring in the containing box, a plurality of detection cavities are arranged in the space outside the blocking ring at equal intervals through partition plates, and fluorescent nanometer materials are arranged at the bottoms of the detection cavities. A plurality of fluorescence detectors corresponding to the detection chambers are arranged at the top of the accommodating box. The invention can solve the following problems in the pollutant detection process in the prior art: through the design of a plurality of detection chambers, multi-pollutant detection can be performed on a single sample at the same time, that is, different fluorescent nano-materials are placed in each chamber, or the same pollutant contrast detection is performed on different samples, so that the detection efficiency is greatly improved. The same nano material is placed in each chamber, so that diversified control experiments are realized, different detection requirements are met, and the application range is expanded.

Description

Technical Field

[0001] This invention relates to the technical field of pollutant detection, and in particular to an environmental pollutant detection sensor based on fluorescent nanomaterials. Background Technology

[0002] With the acceleration of global industrialization and urbanization, the types and emissions of environmental pollutants have surged, becoming widespread in the atmosphere, water bodies, and soil. These pollutants encompass emerging pollutants such as heavy metals, persistent organic compounds (POCs), volatile organic compounds (VOCs), microbial toxins, and microplastics. These pollutants enter the human body through inhalation and ingestion, and long-term accumulation can lead to health problems such as cancer and neurological disorders, as well as ecological disasters like soil degradation and eutrophication. Therefore, rapid, accurate, and real-time detection and monitoring of environmental pollutants has become a core task in the fields of environmental protection, public health, and sustainable development.

[0003] Traditional sensors typically have a single detection channel, allowing only a single sample or contaminant to be detected at a time. This makes it impossible to conduct multiple control experiments simultaneously. Verifying multiple contaminants in a single sample requires repeated replacement of nanomaterials, which is cumbersome and prone to bias due to varying conditions. Comparing the same contaminant in different samples requires multiple independent detections, making it difficult to ensure environmental consistency and reducing data comparability. Therefore, developing fluorescent nanomaterial sensors that can flexibly implement diverse control experiments while ensuring detection accuracy and stability is key to overcoming the current technological bottlenecks.

[0004] For example, Chinese patent CN111466742A discloses a fluorescent monoclonal antibody nanosphere detection kit, including a box body, a lid, and reagent tubes. The lid is located on the top of the box body and is hinged to the box body. The lid is located inside the box body, and a placement plate is located inside the box body. The placement plate is fixedly connected to the inner wall of the box body, and a baffle is fixedly connected to the bottom of the placement plate. An inflation component is located on the outside of the baffle. The inflation component includes a push rod, which is fixedly and rotatably connected to the inner wall of the lid. In this fluorescent monoclonal antibody nanosphere detection kit, an air bladder and an air cylinder are fixedly connected and communicate with each other through a connecting tube. Air from inside the air cylinder is filled into the air bladder, which helps to inflate the air bladder and thus protect the reagent tubes. This provides cushioning protection during bumps and prevents the reagent tubes from being damaged. At the same time, the exhaust pipe is opened to release air, and the slow release of air with the baffle makes it easier to pick up the reagent tubes.

[0005] However, the above-mentioned fluorescent monoclonal antibody nanosphere detection kit has some shortcomings in practical use: In existing technologies, reagent kits only provide storage and protection for reagent tubes, without designing multi-channel independent detection units or synchronous reaction control structures. If control experiments are required, such as blank controls or standard concentration controls, manual operation is necessary multiple times, making it difficult to ensure that the reaction conditions of each group of reagent tubes are completely consistent, and the results are prone to deviation due to differences in operation.

[0006] Therefore, based on the above-stated viewpoints, it is of great significance to improve and perfect the fluorescent monoclonal antibody nanosphere detection kit. It can not only divide a single sample into multiple groups for control experiments, but also perform unified detection on different samples, making the experiment more feasible and more operable. Summary of the Invention

[0007] To address the aforementioned issues, this invention provides an environmental pollutant detection sensor based on fluorescent nanomaterials, comprising a housing, a barrier ring coaxially disposed within the housing, a working chamber within the barrier ring, and multiple detection chambers equidistantly disposed outside the barrier ring via partitions, fluorescent nanomaterials disposed at the bottom of the detection chambers, and multiple fluorescence detectors corresponding to the detection chambers disposed at the top of the housing.

[0008] A support column is rotatably installed at the bottom of the working chamber. An L-shaped water inlet pipe is installed on the support column via an installation block. Multiple water inlets corresponding to the detection chamber are opened on the isolation ring. The water inlet pipe and the water inlet are movably aligned.

[0009] The testing chamber is also equipped with valves to seal the water inlet.

[0010] Preferably, the valve component includes a sealing plate, and a groove is provided along the height direction of the end of the detection chamber near the working chamber. The sealing plate is slidably disposed in the groove, and a float plate is installed at the bottom of the sealing plate.

[0011] Preferably, a magnet is installed on the top of the sealing plate, and an L-shaped connecting groove is opened at the upper end of the blocking ring. A rotating ring is rotatably installed in the connecting groove, and multiple magnets corresponding to the detection chambers are installed at equal intervals on the rotating ring.

[0012] Magnet one and magnet two have opposite magnetic properties.

[0013] The magnets of adjacent magnets on the rotating ring are opposite, and the magnets of adjacent magnets in the detection chamber are also opposite.

[0014] Preferably, the working chamber is equipped with a drive component that drives the water inlet pipe to rotate.

[0015] A transfer box is rotatably mounted on the top of the working chamber via a support plate. The transfer box is connected to the water inlet pipe. A mating ring is fitted on the outside of the transfer box. Multiple mating grooves are equidistantly opened at the bottom of the mating ring along its axis. The cross-section of the mating groove is a right-angled triangle. A stop rod is installed on the rotating ring. The stop rod passes through the blocking ring and extends to the bottom of the mating ring. The stop rod is movably engaged with the mating groove.

[0016] Preferably, the bottom of the transfer box has multiple locking blocks equidistantly arranged along its axis by locking springs, and the support plate has multiple locking slots that interact and engage with the locking blocks.

[0017] Preferably, the transfer box is funnel-shaped and has a spiral baffle installed via a support rod.

[0018] Preferably, the container is further provided with a stirring element for agitating the water sample entering the detection chamber; the stirring element includes multiple irregularly shaped rods passing through the working chamber and the detection chamber, and multiple mounting slots located above the connecting slot are equidistantly arranged on the barrier ring along its axis. The irregularly shaped rods are rotatably arranged in the mounting slots along the axis of the barrier ring, and a limit block is provided at the bottom of the section of the irregularly shaped rod located above the connecting slot, and the limit block extends into the connecting slot.

[0019] Multiple stirring rods are equidistantly arranged at one end of the irregularly shaped rod located inside the detection chamber.

[0020] Preferably, one end of the irregularly shaped rod located in the working chamber is mounted on the transfer box by a spring, and the end of the irregularly shaped rod located in the working chamber is configured as a spring telescopic structure, with a drive block provided on the side of the ring that moves in contact with the irregularly shaped rod.

[0021] Preferably, a drive rod extending to the outside of the receiving box is installed on the rotating ring. The drive rod is slidably disposed in the connecting groove by a spring rope. An arc-shaped groove is provided on the receiving box for the drive rod to slide.

[0022] Preferably, the container is also provided with a sampling mechanism, which includes a sampling tube, an inlet tube at the bottom of the sampling tube, and an outlet tube at the top, the outlet tube being connected to the transfer box.

[0023] A push plate is slidably installed inside the sampling tube, and a pull rod through which the sampling tube is installed on the push plate. One-way valves are installed at the connection between the sample inlet tube and the sampling tube, as well as on the push plate.

[0024] In summary, this application includes at least one of the following beneficial technical effects: I. This invention, through the design of multiple detection chambers, can simultaneously detect multiple contaminants in a single sample, that is, different fluorescent nanomaterials are placed in each chamber, or the same contaminant can be compared and detected in different samples, that is, the same nanomaterials are placed in each chamber, so as to realize diversified control experiments, meet different detection needs, and expand the application range.

[0025] Second, this invention uses a filter screen to remove suspended particulate matter such as silt and algae from the sample, reducing their interference with the scattering or absorption of fluorescence signals. The dual agitation of the spiral baffle and the stirring rod ensures that the pollutants in the sample are evenly distributed, avoiding the influence of local concentration deviations on the results and ensuring that changes in fluorescence signals only reflect the specific interaction between pollutants and nanomaterials. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0028] Figure 2 This is a partial structural schematic diagram of the present invention.

[0029] Figure 3 This is a structural schematic diagram of the valve component and the drive component of the present invention.

[0030] Figure 4 This is a schematic diagram of the structure on the rotating ring of the present invention.

[0031] Figure 5 This is a schematic diagram of the internal structure of the transfer box in this invention.

[0032] Figure 6 This is a partial structural schematic diagram of the present invention.

[0033] Figure 7 This is the present invention. Figure 6 A schematic diagram of the structure at point A in the middle.

[0034] Figure 8 This is a schematic diagram of the sampling mechanism of the present invention.

[0035] In the diagram, 1. Receiving box; 10. Barrier ring; 11. Working chamber; 12. Partition; 13. Detection chamber; 14. Fluorescence detector; 20. Support column; 21. Inlet pipe; 22. Inlet; 3. Valve; 30. Sealing plate; 31. Float; 32. Magnet one; 33. Connecting groove; 34. Rotating ring; 35. Magnet two; 4. Driving component; 40. Transfer box; 41. Mating ring; 42. Fitting groove; 43. Support rod; 50. Snap-fit ​​block; 51. Snap-fit ​​groove; 52. Baffle plate; 6. Stirring component; 60. Irregularly shaped rod; 61. Mounting groove; 62. Limiting block; 63. Stirring rod; 64. Drive block; 65. Drive rod; 66. Arc groove; 7. Sampling mechanism; 70. Sampling cylinder; 71. Inlet tube; 72. Outlet tube; 73. Push plate; 74. Pull rod; 8. Filter screen. Detailed Implementation

[0036] The following combination Figures 1-8The embodiments of the present invention will be described in detail below.

[0037] This application discloses an environmental pollutant detection sensor based on fluorescent nanomaterials. The present invention is mainly used in the process of pollutant detection. In terms of technical effect, it can avoid the problem that the lack of control will lead to the lack of reference standards for experimental results, the inability to effectively compare detection data from different batches and different operators, the difficulty in verifying the stability and repeatability of experimental methods, and the reduction of the persuasiveness of the results.

[0038] Example 1: Reference Figure 1 and Figure 2 As shown, an environmental pollutant detection sensor based on fluorescent nanomaterials is disclosed, primarily for detecting polluted water sources. It includes a housing 1, within which a coaxial barrier ring 10 is disposed. The inner space of the barrier ring 10 within the housing 1 is configured as a working chamber 11, and the outer space of the barrier ring 10 is equidistantly configured with multiple detection chambers 13 via partitions 12. Fluorescent nanomaterials are disposed at the bottom of each detection chamber 13. Water samples are placed inside the detection chambers 13, and the pollutant status in the water source is observed through their reaction with the fluorescent nanomaterials within the detection chambers 13. Multiple fluorescence detectors 14, corresponding to the detection chambers 13, are disposed on the top of the housing 1.

[0039] The fluorescence detector 14 can observe changes in the brightness, color, and rate of change of nano-fluorescent materials and generate data for the testing personnel to observe.

[0040] It should be noted that in this invention, when placing water source samples, for a single water source sample, the sample can be uniformly dispersed into multiple detection chambers 13 to observe the changes in the insoluble fluorescent nanomaterials in a single sample, thereby observing the content of different types of pollutants in the sample and conducting a control experiment. Different fluorescent nanomaterials will be placed inside the detection chambers 13 at this time.

[0041] When dealing with different water sources, the same nano-fluorescent material is placed inside the detection chamber 13. Different samples are placed inside different detection chambers 13, thereby enabling the observation of the content of the same pollutant in different samples.

[0042] By using the different detection methods described above, the detection method can be adjusted according to actual needs, different control experiments can be conducted, and different samples or different testing requirements can be met, making it more feasible and having a wider range of operability.

[0043] Reference Figure 2 and Figure 3The diagram shows the structure for sending the sample into the detection chamber 13. Specifically, a support column 20 is rotatably mounted at the bottom of the working chamber 11. An L-shaped water inlet pipe 21 is installed on the support column 20 via a mounting block. Multiple water inlets 22, corresponding one-to-one with those in the detection chamber 13, are opened on the barrier ring 10. The water inlet pipe 21 and the water inlet 22 are movably aligned. Sample water enters the detection chamber 13 through the water inlet pipe 21 and then through the water inlet 22, where it reacts with the nano-fluorescent material.

[0044] The detection chamber 13 is also equipped with a valve 3 to seal the inlet 22. After the sample enters the detection chamber and the required amount is obtained, the inlet 22 is sealed by the valve 3 to prevent the sample from flowing back into the inlet 22, while ensuring that the inside of the detection chamber 13 is a closed environment and reducing the interference of external factors on the detection.

[0045] Reference Figure 3 and Figure 4 As shown, this is a schematic diagram of the structure for sealing the inlet 22; specifically, the valve component 3 includes a sealing plate 30, and a groove is provided along the height direction at one end of the detection chamber 13 near the working chamber 11. The sealing plate 30 is slidably disposed in the groove, and a float plate 31 is installed at the bottom of the sealing plate 30.

[0046] After the sample enters the detection chamber 13, the water level inside the chamber gradually rises. At this time, when the float 31 comes into contact with the water, it rises with the water level, carrying the sealing plate 30 as it slides and rises within the chute, thus sealing the inlet 22. Reference Figure 3 and Figure 4 The diagram shows the structure for fixing the sealing plate 30. Specifically, a magnet 32 ​​is installed on the top of the sealing plate 30, and an L-shaped connecting groove 33 is opened at the upper end of the blocking ring 10. A rotating ring 34 is rotatably arranged in the connecting groove 33, and multiple magnets 35 corresponding to the detection chamber 13 are installed at equal intervals on the rotating ring 34.

[0047] Magnet 32 ​​and magnet 35 have opposite magnetic properties. As the sealing plate 30 gradually rises, magnet 32 ​​on the sealing plate 30 will gradually approach magnet 35. The two magnets attract each other, causing the sealing plate 30 to connect with the rotating ring 34.

[0048] Reference Figure 3 and Figure 4 As shown, this is a schematic diagram of the structure that drives the sealing plate 30 back to its initial position; specifically, the magnets 35 adjacent to each other on the rotating ring 34 have opposite magnetic properties, and the magnets 32 in the adjacent detection chamber 13 have opposite magnetic properties.

[0049] After the test is completed, by rotating the rotating ring 34, the second magnet 35 on the rotating ring 34 will approach the first magnet 32 ​​of the adjacent test chamber 13. At this time, the two magnets 32 and 35 that are attracted to each other will gradually move away. When the attracted magnets 32 and 35 are completely far apart, the first magnet 32 ​​loses the attraction of the second magnet 35 and slides down under the action of gravity and the push of the next magnet with the same magnetism, returning to the initial position.

[0050] Reference Figure 3 and Figure 4 The diagram shows a schematic of the structure that controls the rotation of the rotating ring 34. Specifically, a drive rod 65 extending to the outside of the receiving box 1 is installed on the rotating ring 34. The drive rod 65 is slidably set in the connecting groove 33 by a spring rope. An arc-shaped groove 66 is provided on the receiving box 1 for the drive rod 65 to slide.

[0051] After the test is completed, the staff moves the drive rod 65, which slides within the arc-shaped groove 66. This causes the rotating ring 34 to rotate at a certain angle, separating the mutually attracted magnets 32 and 35. The drive rod 65 then automatically returns to its initial position under the action of a spring, preparing for the next test.

[0052] Reference Figure 3 , Figure 4 and Figure 5 The diagram shows a schematic of the structure for controlling the rotation of the inlet pipe 21. Specifically, a drive unit 4 is installed inside the working chamber 11 to drive the rotation of the inlet pipe 21. By controlling the rotation of the inlet pipe 21, the inlet pipe 21 is aligned with different inlets 22, making it convenient to send the sample into the detection chamber 13.

[0053] A transfer box 40 is rotatably mounted on the top of the working chamber 11 via a support plate. The transfer box 40 is connected to the water inlet pipe 21. Water samples will enter the water inlet pipe 21 through the transfer box 40. A mating ring 41 is fitted on the outside of the transfer box 40. Multiple mating grooves 42 are equidistantly opened at the bottom of the mating ring 41 along its axis. The cross-section of the mating groove 42 is a right triangle. A stop rod 43 is provided on the rotating ring 34. The stop rod 43 passes through the barrier ring 10 and extends to the bottom of the mating ring 41. The stop rod 43 is movably mated with the mating groove 42.

[0054] It should be noted that the rotating ring 34 can also slide up and down along the height direction of the connecting groove 33.

[0055] When the sealing plate 30 rises, and magnet 1 32 approaches its corresponding magnet 2 35, magnet 1 32 will quickly approach magnet 2 35 under the attraction of magnet 2 35, which will push the converter to move upward. At this time, the push rod 43 on the rotating ring 34 will approach the mating groove 42 on the mating ring 41. The inclined surface of the mating groove 42 and the push rod 43 cooperate with the mating ring 41 to rotate the intermediate transfer box 40, thereby causing the water inlet pipe 21 to rotate and align with the water inlet 22 of the other detection chamber 13.

[0056] Then, the rotating ring 34 will automatically fall back under the influence of gravity.

[0057] It should be noted that the rotation angle of the rotating ring 34 is the same as the angle between the two ends of the mating groove 42 and the axis of the mating ring 41, ensuring that the rotating ring 34 can be aligned with the inclined corner of the mating groove 42 after each rotation.

[0058] The bottom of the transfer box 40 has multiple snap-fit ​​blocks 50 equidistantly arranged along its axis by snap-fit ​​springs, and the support plate has multiple snap-fit ​​grooves 51 that interact and engage with the snap-fit ​​blocks 50.

[0059] After the transfer box 40 rotates, it is fixed by the cooperation of the locking block 50 and the locking groove 51 to prevent it from rotating too much under the action of inertia, which would cause the water inlet pipe 21 to fail to connect with the water inlet 22.

[0060] Reference Figure 6 The diagram shows a structure for stirring the sample entering the detection chamber 13; specifically, the transfer box 40 is funnel-shaped and has a spiral baffle 52 installed via a support rod.

[0061] When the sample water source enters the transfer box 40, it will fall onto the baffle 52 and collide with the baffle 52, which can agitate the uneven pollutants in the sample, so that the pollutants can be evenly distributed in the water.

[0062] Reference Figure 6 and Figure 7 The diagram illustrates a structure designed to reduce deviations in detection data. Specifically, the container 1 includes a stirring element 6 that agitates the water sample entering the detection chamber 13. Agitating the sample water breaks the diffusion limitations of a static liquid state, accelerating the migration rate of pollutant molecules to the surface of the nanomaterials. This prevents incomplete reactions due to low local pollutant concentrations, ensuring that changes in the fluorescence signal accurately reflect the total amount of pollutants in the sample. The stirring element 6 includes multiple irregularly shaped rods 60 that pass through the working chamber 11 and the detection chamber 13. Multiple mounting slots 61, equidistant from the axis of the barrier ring 10, are located above the connecting groove 33. The irregularly shaped rods 60 are rotatably mounted within the mounting slots 61 along the axis of the barrier ring 10. A limiting block 62 is provided at the bottom of the section of the irregularly shaped rod 60 above the connecting groove 33, extending into the connecting groove 33.

[0063] Multiple stirring rods 63 are equidistantly arranged at one end of the irregular rod 60 inside the detection chamber 13. During rotation, the baffle 52 on the irregular rod 60 will stir the sample water inside the detection chamber 13, so that the sample water is mixed evenly, avoiding the result deviation caused by only detecting local water samples, and ensuring that the detection value can represent the overall pollution level of the sample.

[0064] Reference Figure 6 and Figure 7 The diagram shows a schematic of the structure controlling the rotation of the irregular rod 60. Specifically, one end of the irregular rod 60 located in the working chamber 11 is spring-loaded onto the transfer box 40, and this end is designed as a spring-extension structure. A drive block 64 is provided on the side of the mating ring 41 to move and abut against the irregular rod 60. When the mating ring 41 rotates, the drive block 64 on the mating ring 41 abuts against the irregular rod 60, driving the irregular rod 60 to rotate.

[0065] It should also be noted that the elastic force of the snap-fit ​​spring is greater than the elastic force of the extension and retraction of the end of the irregular rod 60 located in the working chamber 11. Therefore, when the mating ring 41 rotates into place, the irregular rod 60 will retract under the reaction force of the drive block 64, and then return to the initial position under the action of the spring, in preparation for the next test.

[0066] Reference Figure 8 The diagram shows the structure for extracting water samples. Specifically, the container 1 is also equipped with a sampling mechanism 7, which includes a sampling tube 70. The bottom of the sampling tube 70 is equipped with an inlet tube 71, and the top is equipped with an outlet tube 72. The outlet tube 72 is connected to the transfer box 40, and the sample will enter the transfer box 40 through the outlet tube 72.

[0067] A push plate 73 is slidably installed inside the sampling tube 70. A pull rod 74 is installed on the push plate 73 and passes through the sampling tube 70. One-way valves are installed at the connection between the sample inlet tube 71 and the sampling tube 70, as well as on the push plate 73.

[0068] Pulling the push plate 73 upward within the sampling cylinder 70 via the pull rod 74 draws the sample water into the sampling cylinder 70. Then, controlling the push plate 73 to move downward within the sampling cylinder 70 closes the one-way valve at the inlet tube 71, allowing the sample water to enter the area above the push plate 73 through the one-way valve. When the push plate 73 rises again, it pushes the sample water into the outlet tube 72.

[0069] Example 2: Based on Example 1, in order to further improve the detection effect, a filter 8 is also proposed, which is beneficial for filtering samples entering the transfer box 40.

[0070] Reference Figure 5The diagram shows a sample filtering structure; specifically, a filter 8 is installed above the baffle 52 inside the transfer box 40.

[0071] Real-world water samples often contain suspended particulate matter such as silt, algae, and microorganisms. These particles can scatter or absorb fluorescence signals, leading to signal distortion. Filter 8 removes these particles, reduces optical background interference, and ensures that changes in fluorescence intensity are caused solely by the specific interaction between pollutants and nanomaterials, thus improving detection accuracy.

[0072] During operation: First step, sampling and sample pretreatment: Pull the sampling tube 70 lever 74, the push plate 73 moves upward to draw the sample into the inlet tube 71; the push plate 73 moves downward, the sample enters the upper area; then the push plate 73 is pushed upward, the sample enters the transfer box 40 through the outlet tube 72. The sample is first filtered by the filter screen 8, and then agitated by the baffle plate 52 to ensure uniform distribution of contaminants.

[0073] The second step involves distributing the sample to the detection chamber 13: the support column 20 drives the water inlet pipe 21 to rotate, aligning it with the water inlet 22 of the detection chamber 13, allowing the sample to flow in. When the transfer box 40 rotates, the mating groove 42 and the abutment rod 43 work together to ensure precise docking, and the locking block 50 and the locking groove 51 secure the transfer box 40.

[0074] The third step is the automatic sealing of the detection chamber 13: after the sample enters, the water level rises, the float 31 drives the sealing plate 30 to move up and seal the inlet 22, and the magnet 1 32 and the magnet 2 35 attract each other to ensure sealing, preventing backflow and external interference.

[0075] The fourth step is the reaction and stirring of the sample with the nanomaterial: the detection chamber 13 is pre-filled with fluorescent nanomaterials, in which different materials are used for a single sample and the same material is used for different samples. The rotating ring 41 causes the irregular rod 60 to rotate, and the stirring rod 63 stirs the sample to accelerate the reaction.

[0076] The fifth step is fluorescence detection and data generation: the fluorescence detector 14 monitors each chamber and generates pollutant content data by observing changes in the brightness and color of the nanomaterials.

[0077] Step 6, Reset after testing: Move the drive rod 65 to rotate the rotating ring 34, the magnet separates, the sealing plate 30 resets, the drive rod 65 returns to the initial position, and the water inlet pipe 21 switches to the next water inlet 22.

[0078] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects.

[0079] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An environmental pollutant detection sensor based on fluorescent nanomaterials, comprising a housing (1), characterized in that: The container (1) is provided with a barrier ring (10) coaxial with it. The space inside the barrier ring (10) in the container (1) is set as a working chamber (11). The space outside the barrier ring (10) is set as multiple detection chambers (13) at equal intervals through a partition (12). Fluorescent nanomaterials are provided at the bottom of the detection chamber (13). Multiple fluorescence detectors (14) corresponding to the detection chambers (13) are provided at the top of the container (1). A support column (20) is rotatably installed at the bottom of the working chamber (11). An L-shaped water inlet pipe (21) is installed on the support column (20) through an installation block. Multiple water inlets (22) corresponding to the detection chamber (13) are opened on the barrier ring (10). The water inlet pipe (21) and the water inlet (22) are movably corresponding. The detection chamber (13) is also equipped with a valve (3) to block the water inlet (22).

2. The environmental pollutant detection sensor based on fluorescent nanomaterials according to claim 1, characterized in that: The valve component (3) includes a sealing plate (30). A groove is provided at one end of the detection chamber (13) near the working chamber (11) along its height direction. The sealing plate (30) is slidably disposed in the groove. A float plate (31) is installed at the bottom of the sealing plate (30).

3. The environmental pollutant detection sensor based on fluorescent nanomaterials according to claim 2, characterized in that: A magnet (32) is installed on the top of the sealing plate (30), and a connecting groove (33) with an L-shaped cross section is opened at the upper end of the blocking ring (10). A rotating ring (34) is rotatably installed in the connecting groove (33), and multiple magnets (35) corresponding to the detection chamber (13) are installed at equal intervals on the rotating ring (34). Magnet one (32) and magnet two (35) have opposite magnetic properties; The magnets of adjacent magnets 2 (35) on the rotating ring (34) are opposite, and the magnets of adjacent magnets 1 (32) in the adjacent detection chamber (13) are opposite.

4. The environmental pollutant detection sensor based on fluorescent nanomaterials according to claim 1, characterized in that: The working chamber (11) is equipped with a drive component (4) that drives the water inlet pipe (21) to rotate. The top of the working chamber (11) is rotatably equipped with a transfer box (40) via a support plate. The transfer box (40) is connected to the water inlet pipe (21). A mating ring (41) is fitted on the outside of the transfer box (40). Multiple mating grooves (42) are equidistantly opened at the bottom of the mating ring (41) along its axis. The cross-section of the mating groove (42) is a right triangle. A stop rod (43) is provided on the rotating ring (34). The stop rod (43) passes through the barrier ring (10) and extends to the bottom of the mating ring (41). The stop rod (43) and the mating groove (42) are movably mated.

5. The environmental pollutant detection sensor based on fluorescent nanomaterials according to claim 4, characterized in that: The bottom of the transfer box (40) is provided with multiple snap-fit ​​blocks (50) at equal intervals along its axis via snap-fit ​​springs, and the support plate is provided with multiple snap-fit ​​slots (51) that interact and engage with the snap-fit ​​blocks (50).

6. The environmental pollutant detection sensor based on fluorescent nanomaterials according to claim 4, characterized in that: The transfer box (40) is funnel-shaped and has a spiral baffle (52) installed by a support rod.

7. The environmental pollutant detection sensor based on fluorescent nanomaterials according to claim 1, characterized in that: The container (1) is also provided with a stirring component (6) for agitating the water sample entering the detection chamber (13); the stirring component (6) includes multiple irregular rods (60) that pass through the working chamber (11) and the detection chamber (13), and multiple mounting slots (61) located above the connecting slot (33) are provided equidistantly along the axis of the barrier ring (10). The irregular rods (60) are rotatably disposed in the mounting slots (61) along the axis of the barrier ring (10), and a limiting block (62) is provided at the bottom of a section of the irregular rod (60) located above the connecting slot (33). The limiting block (62) extends into the connecting slot (33). Multiple stirring rods (63) are equidistantly arranged at one end of the irregular rod (60) inside the detection chamber (13).

8. The environmental pollutant detection sensor based on fluorescent nanomaterials according to claim 7, characterized in that: The end of the irregular rod (60) located in the working chamber (11) is set on the transfer box (40) by a spring, and the end of the irregular rod (60) located in the working chamber (11) is set as a spring telescopic structure, and a drive block (64) is provided on the side of the mating ring (41) to move and abut against the irregular rod (60).

9. An environmental pollutant detection sensor based on fluorescent nanomaterials according to claim 3, characterized in that: A drive rod (65) extending to the outside of the receiving box (1) is installed on the rotating ring (34). The drive rod (65) is slidably set in the connecting groove (33) by a spring rope. An arc groove (66) is opened on the receiving box (1) for the drive rod (65) to slide.

10. An environmental pollutant detection sensor based on fluorescent nanomaterials according to claim 1, characterized in that: The container (1) is also provided with a sampling mechanism (7), which includes a sampling tube (70). The bottom of the sampling tube (70) is provided with an inlet tube (71), and the top is provided with an outlet tube (72). The outlet tube (72) is connected to the transfer box (40). A push plate (73) is slidably installed inside the sampling tube (70). A pull rod (74) through the sampling tube (70) is installed on the push plate (73). A one-way valve is installed at the connection between the sample inlet tube (71) and the sampling tube (70) and on the push plate (73).

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