Novel closed anti-interference device for optical detection of fluorescent material

Abstract

The invention provides a closed anti-interference device for optical detection of a novel fluorescent material, and belongs to the technical field of optical detection of novel fluorescent materials. The novel closed anti-interference device for optical detection of the fluorescent material comprises a detection main body, a sealing sleeve is arranged in the detection main body, and the novel closed anti-interference device is characterized in that an iris type edge light sealing mechanism is arranged in the sealing sleeve and comprises a rotating ring and a centering driving plate. By arranging the mechanical iris type edge light sealing mechanism, after a centering driving plate completes self-adaptive centering on a fluorescent powder pressing piece, an edge light sealing block can automatically descend and be precisely attached to the cylindrical side walls of the pressing pieces with different diameters, and by means of a V-shaped labyrinth groove and a light absorption coating, the pressing pieces with different diameters can be accurately sealed; waveguide fluorescence overflowing from the side wall of the pressing piece is mechanically reflected and absorbed for multiple times in the groove, diffuse reflection interference of side halo on the receiver is blocked from a physical source, and the detection accuracy is improved.

Description

Technical Field

[0001] This invention relates to the field of optical detection technology for novel fluorescent materials, and more specifically, to a novel sealed anti-interference device for optical detection of fluorescent materials. Background Technology

[0002] Before optical performance testing, fluorescent powder materials are usually prepared into spherical solid powder pellets under high pressure. In the existing optical testing process, the pellets to be tested are usually placed in a sealed test chamber, and excitation light is provided by an irradiation source. A receiver is used to collect the fluorescence signal emitted by the pellets to evaluate their luminous efficiency and spectral characteristics.

[0003] However, the relatively flat surfaces of the fluorescent powder pellets lead to a severe total internal reflection waveguide effect. The large amount of high-intensity fluorescence generated inside the pellet does not exit from the front but is conducted like an optical fiber to the cylindrical sidewall of the fluorescent powder pellet and then emitted, forming a very bright halo that diffuses on the chamber wall. This severely interferes with the quantitative accuracy of the front receiver. Furthermore, after the fluorescent powder material is pressed under high pressure, extremely complex mechanical residual stress is generated inside, causing slight deformation of the crystal lattice. This deformation makes the emitted fluorescence spatially anisotropic, meaning that the fluorescence intensity and polarization state radiated from different angles differ, resulting in huge fluctuations in the detection results and making it difficult to obtain stable and accurate quantitative data. Summary of the Invention

[0004] To overcome the above deficiencies, the present invention provides a novel sealed anti-interference device for optical detection of fluorescent materials that overcomes or at least partially solves the above technical problems.

[0005] This invention is implemented as follows: This invention provides a novel sealed anti-interference device for optical detection of fluorescent materials, comprising a detection body, an internal sealing sleeve, and an iris-type edge sealing mechanism. The iris-type edge sealing mechanism includes... Two rotating rings are staggered on a vertical axis. The rotating rings are rotatably mounted on the inner wall of the sealing sleeve. A synchronizing rod is fixed between the two rotating rings. A fixing ring is fixed on the inner wall of the sealing sleeve. Both the fixing ring and the inner bottom wall of the sealing sleeve are provided with a number of first sliding grooves in a circumferential array. Both rotating rings are provided with a number of second sliding grooves in a circumferential array. A centering drive plate is disposed between the inner bottom wall of one of the rotating rings and the sealing sleeve, and a synchronous positioning plate is disposed between the other rotating ring and the fixed ring. A sliding shaft is fixedly disposed on the top of the centering drive plate and the synchronous positioning plate, and a sliding strip is fixedly disposed on the bottom of the centering drive plate and the synchronous positioning plate. The sliding shaft is slidably sleeved inside the first sliding groove, and the sliding strip is slidably sleeved inside the second sliding groove.

[0006] In a preferred embodiment, a guide lifting rod is slidably disposed inside the synchronous positioning plate, an edge sealing block is fixedly disposed at the bottom of the guide lifting rod, a V-shaped labyrinth groove is formed on the edge sealing block, a first pressure plate is fixedly disposed at the top of the guide lifting rod, and a first spring is disposed between the first pressure plate and the synchronous positioning plate.

[0007] In a preferred embodiment, a flexible centering plate is hinged to the bottom of the centering drive plate, a flexible pad is provided on the side of the flexible centering plate near the center of the fixed ring, and a threaded sleeve is fixed to the top of the flexible centering plate.

[0008] In a preferred embodiment, a short mounting rod is fixed to the surface of the edge sealing block, and a threaded drive rod is fixed to the bottom of the short mounting rod, the threaded drive rod being threadedly sleeved inside the threaded sleeve.

[0009] In a preferred embodiment, a hydraulic cylinder is provided on the sealing sleeve, a reflective pressure ring is fixedly provided at the output end of the hydraulic cylinder, a second spring is provided at the bottom of the reflective pressure ring, and a light-sealing pressure ring is provided at the other end of the second spring, with the light-sealing pressure ring located above the first pressure plate.

[0010] In a preferred embodiment, the detection body has a sealing cover inside, and an irradiation source and a receiver are disposed on the bottom wall of the sealing cover, with the receiver located above the center of the fixing ring.

[0011] In a preferred embodiment, the edge sealing block is provided with a multi-angle converging reflection mechanism, the multi-angle converging reflection mechanism including a mounting platform, the mounting platform being fixed on the edge sealing block, and a central reflector being provided below the mounting platform.

[0012] In a preferred embodiment, a second lifting rod is slidably disposed inside the mounting platform, and a second pressure plate is fixedly disposed on the top of the second lifting rod. The second pressure plate is located between the reflective pressure ring and the light-sealing pressure ring, and a third spring is disposed between the mounting platform and the second pressure plate.

[0013] In a preferred embodiment, a reflector mounting base is fixedly provided at the bottom of the second lifting rod, a flexible pressure plate is fixedly provided at the bottom of the reflector mounting base, a first hinge rod is fixedly provided on the reflector mounting base, a second hinge rod is fixedly provided on the first central reflector, and the first hinge rod and the second hinge rod are hinged together.

[0014] In a preferred embodiment, a connecting rod is provided between the mounting platform and the central reflector, with one end of the connecting rod hinged to the mounting platform and the other end of the connecting rod hinged to the central reflector.

[0015] The present invention provides a novel sealed anti-interference device for optical detection of fluorescent materials, the beneficial effects of which include: 1. By setting up a mechanical iris-type edge sealing mechanism, after the centering drive plate completes adaptive centering of the fluorescent powder tablet, the edge sealing block can automatically descend and accurately fit the cylindrical sidewall of tablets of different diameters. Utilizing the V-shaped labyrinth groove and light-absorbing coating, the waveguide fluorescence overflowing from the sidewall of the tablet is mechanically reflected and absorbed multiple times in the groove, thus blocking the diffuse reflection interference of the side halo to the receiver from the physical source and improving the accuracy of detection.

[0016] 2. By setting up a multi-angle polymer reflection mechanism and a flexible pressure plate, when the edge light-sealing block is pressed down into place, the second lifting rod adaptively descends until the flexible pressure plate is close to the top of the pressure plate. This ensures that no matter how the thickness of the pressure plate changes, the relative focal length between the central reflector and the top of the pressure plate remains unchanged. At the same time, under the traction of the connecting rod, the central reflector synchronously completes the adaptive fine adjustment of the angle, accurately and without phase difference reflecting the oblique fluorescence caused by residual stress back to the receiver, thus overcoming the test fluctuation error caused by the spatial anisotropy of the material. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure provided by an embodiment of the present invention; Figure 2 A schematic diagram of the sealing sleeve is provided for embodiments of the present invention; Figure 3 A schematic diagram of the sealing cap is provided for embodiments of the present invention; Figure 4 A partial cross-sectional view of the sealing sleeve and sealing cap is provided for embodiments of the present invention; Figure 5 A schematic diagram of the fixing ring is provided for embodiments of the present invention; Figure 6 A schematic diagram of the structure of the first pressure plate and the second pressure plate is provided for embodiments of the present invention; Figure 7 A schematic diagram of the structure of the first groove is provided for an embodiment of the present invention; Figure 8 A schematic diagram of the structure of the second slide is provided for an embodiment of the present invention; Figure 9 A schematic diagram of the rotating ring and the synchronous positioning plate is provided for embodiments of the present invention; Figure 10 A schematic diagram of the threaded drive rod is provided for embodiments of the present invention; Figure 11 A schematic diagram of the structure of the central reflector is provided for embodiments of the present invention; Figure 12 A schematic diagram of the connecting rod is provided for embodiments of the present invention.

[0019] In the diagram: 1. Detection body; 2. Sealing sleeve; 301. Rotating ring; 302. Synchronizing rod; 303. Fixed ring; 304. First slide groove; 305. Second slide groove; 306. Centering drive plate; 307. Synchronizing positioning plate; 308. Slide shaft; 309. Slide bar; 310. Guide lifting rod; 311. Edge sealing block; 312. V-shaped labyrinth groove; 313. First pressure plate; 314. First spring; 315. Flexible centering plate; 316. Flexible pad; 317. Threaded sleeve; 31 8. Mounting short pole; 319. Threaded drive rod; 320. Hydraulic cylinder; 321. Reflective pressure ring; 322. Second spring; 323. Light-sealing pressure ring; 324. Sealing cover; 325. Irradiation source; 326. Receiver; 401. Mounting platform; 402. Central reflector; 403. Second lifting rod; 404. Second pressure plate; 405. Third spring; 406. Reflector mounting base; 407. Flexible pressure plate; 408. First hinge rod; 409. Second hinge rod; 410. Connecting rod. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Reference Figures 1-12This invention provides a technical solution: a novel sealed anti-interference device for optical detection of fluorescent materials, comprising a detection body 1, with a sealing sleeve 2 disposed inside the detection body 1. The sealing sleeve 2 is characterized by having an iris-type edge sealing mechanism inside, comprising a rotating ring 301 and a centering drive plate 306. Two rotating rings 301 are staggered on a vertical axis, and the rotating rings 301 are rotatably mounted on the inner wall of the sealing sleeve 2 via bearings. A synchronizing rod 302 is fixed between the two rotating rings 301. A fixing ring 303 is fixed on the inner wall of the sealing sleeve 2. Both the fixing ring 303 and the inner bottom wall of the sealing sleeve 2 have a plurality of first sliding grooves 304 arranged in a circumferential array. The two rotating rings 301 also have a plurality of... A second sliding groove 305 is formed. A centering drive plate 306 is disposed between one of the rotating rings 301 and the inner bottom wall of the sealing sleeve 2. A synchronous positioning plate 307 is disposed between the other rotating ring 301 and the fixed ring 303. A sliding shaft 308 is fixedly provided on the top of the centering drive plate 306 and the synchronous positioning plate 307, and a sliding strip 309 is fixedly provided on the bottom of the centering drive plate 306 and the synchronous positioning plate 307. The sliding shaft 308 is slidably sleeved inside the first sliding groove 304, and the sliding strip 309 is slidably sleeved inside the second sliding groove 305. Since the centering drive plate 306 is only used for circumferential centering of the fluorescent powder tablet, the number of centering drive plates 306 does not need to be the same as the number of synchronous positioning plates 307. In this embodiment, the number of centering drive plates 306 is... There are three of them, and twelve of them are synchronous positioning plates 307. The surface of the lower rotating ring 301 is fixed with a toothed ring (not shown in the figure). The inside of the sealing sleeve 2 is equipped with a micro motor and gears. The micro motor drives the gears to rotate, and the meshing connection between the gears and the toothed rings drives the lower rotating ring 301 to rotate. This is existing technology and will not be described in detail here. The inside of the detection body 1 is equipped with a sealing cover 324. The bottom wall of the sealing cover 324 is equipped with an irradiation source 325 and a receiver 326. The receiver 326 is located above the center of the fixed ring 303. The inside of the detection body 1 is equipped with a cylinder (not shown in the figure) to drive the sealing cover 324 to move downward until the sealing cover 324 and the sealing sleeve 2 are in a connected and sealed state. In this configuration, by setting an edge-sealing mechanism, the fluorescent powder tablet can be centered while the synchronous positioning plate 307 is differentially displaced and positioned simultaneously. The user places the fluorescent powder tablet on the inner bottom wall of the sealing sleeve 2, and the drive cylinder moves the sealing cover 324 downward to seal the fluorescent powder tablet. At the same time, the irradiation source 325 and the receiver 326 are ready. The micro motor is started, driving the gear to rotate. Through the meshing connection of the gear and the gear ring, the gear ring drives the lower rotating ring 301 to rotate. With the cooperation of the synchronous rod 302, the upper rotating ring 301 rotates synchronously. When the rotating ring 301 rotates, the inner wall of the first sliding groove 304 squeezes the sliding shaft 308. Under the limiting cooperation of the sliding strip 309 and the second sliding groove 305,Several synchronous positioning plates 307 and centering drive plates 306 move synchronously toward the center of the fixing ring 303, thereby completing the centering of the fluorescent powder press and the adaptive dimensional following of the upper synchronous positioning plate 307. After the lower flexible pad 316 centers the fluorescent powder press, the upper edge sealing block 311 is moved downward, and the flexible centering plate 315 is rotated so that the flexible centering plate 315 actively avoids the edge sealing block 311 until the edge sealing block 311 contacts the inner bottom wall of the sealing sleeve 2. At this time, the fluorescent powder press is wrapped by the V-shaped labyrinth groove 312. After the irradiation source 325 is activated, the fluorescent powder press absorbs the irradiation source 325. After being excited by light, the generated fluorescence radiates in all directions. Because the upper and lower surfaces of the tablet are relatively flat, this leads to a severe total internal reflection waveguide effect. A large amount of fluorescence does not exit from the top and enter the receiver 326, but is instead conducted like an optical fiber to the cylindrical side of the fluorescent powder tablet, forming a very bright halo. This halo strikes the wall of the sealed sleeve 2 and undergoes diffuse reflection, severely interfering with the quantitative accuracy of the receiver 326. By using the V-shaped labyrinth groove 312, the waveguide fluorescence is reflected into the V-shaped labyrinth groove 312, undergoes multiple mechanical reflections, and is absorbed by the light-absorbing coating, thus preventing the waveguide fluorescence from entering the receiver 326 and causing errors in the detection results. Reference Figures 1-12The synchronous positioning plate 307 has a guide lifting rod 310 slidably mounted inside. An edge sealing block 311 is fixed to the bottom of the guide lifting rod 310. A V-shaped labyrinth groove 312 is formed on the edge sealing block 311. The surface of the V-shaped labyrinth groove 312 is coated with a light-absorbing coating, and the height of the V-shaped labyrinth groove 312 is greater than the maximum height of the preset fluorescent powder pressing sheet. A first pressure plate 313 is fixed to the top of the guide lifting rod 310. A first spring 314 is provided between the first pressure plate 313 and the synchronous positioning plate 307. A flexible centering plate 315 is hinged to the bottom of the centering drive plate 306. A flexible pad 316 is provided on the side of the flexible centering plate 315 near the center of the fixing ring 303 to prevent the fluorescent powder pressing sheet from falling off after rigid contact. A threaded sleeve 317 is fixed to the top of the flexible centering plate 315. A hanging short rod 318 is fixed to the surface of the edge sealing block 311, and a threaded drive rod 319 is fixed to the bottom of the hanging short rod 318. The threaded drive rod 319 is threaded inside the threaded sleeve 317. The threaded drive rod 319 and the threaded sleeve 317 are in a large-lead non-self-locking threaded fit. The threaded groove inside the threaded sleeve 317 is provided with a limit stroke on the vertical end to limit the threaded drive rod 319 from disengaging from the threaded sleeve 317. By setting the threaded sleeve 317 and the threaded drive rod 319, when the guide lifting rod 310 drives the edge sealing block 311 to move downward, the threaded connection between the threaded drive rod 319 and the threaded sleeve 317 converts the downward linear motion of the threaded drive rod 319 into the rotational motion of the threaded sleeve 317. This causes the threaded sleeve 317 to drive the flexible centering plate 315 to swing, thereby making the flexible centering plate 315 and the centering drive plate 306 coincide in the vertical direction, actively avoiding the edge sealing block 311 and preventing motion interference between the edge sealing block 311 and the flexible centering plate 315 during the descent process. Reference Figures 1-12 A hydraulic cylinder 320 is installed on the sealing sleeve 2. A reflective pressure ring 321 is fixedly installed at the output end of the hydraulic cylinder 320. A second spring 322 and a telescopic rod are installed at the bottom of the reflective pressure ring 321. A light-sealing pressure ring 323 is installed at the other end of the second spring 322 and the telescopic rod. The light-sealing pressure ring 323 is located above the first pressure plate 313. By setting the light-sealing pressure ring 323, the edge light-sealing block 311 can be driven to move vertically up and down. The user starts the hydraulic cylinder 320. The reflective pressure ring 321 and the light-sealing pressure ring 323 move downwards. Since the preload of the second spring 322 is much greater than that of the first spring 314, the light-sealing pressure ring 323 squeezes the first pressure plate 313. The first pressure plate 313 then drives the guide lifting rod 310 to move downwards. Since the second lifting rod 403 is set on the mounting platform 401 located on the edge light-sealing block 311, the second lifting rod 403 moves together with the edge light-sealing block 311, and the two remain relatively stationary. Reference Figures 1-12A multi-angle polymerization and reflection mechanism is provided on the edge sealing block 311. The multi-angle polymerization and reflection mechanism includes a mounting platform 401, which is fixed on the edge sealing block 311. A central reflector 402 is provided below the mounting platform 401. A second lifting rod 403 is slidably arranged inside the mounting platform 401. A second pressure plate 404 is fixed on the top of the second lifting rod 403. The second pressure plate 404 is located between the reflective pressure ring 321 and the sealing pressure ring 323. A third spring 405 is provided between the mounting platform 401 and the second pressure plate 404. By setting up the multi-angle polymerization and reflection mechanism, the fluorescence can be reflected vertically upward. After the powder fluorescent material is pressed under high pressure, complex mechanical residual stress will be generated inside the fluorescent powder pressed tablet, and the crystal lattice will undergo slight deformation. This causes the fluorescence emitted from the top of the fluorescent powder pressed tablet after excitation to be not absolutely uniformly vertically upward in space, but rather has anisotropy. In other words, it will emit light at an angle upwards. When the edge sealing block 311 contacts the inner bottom wall of the sealing sleeve 2, the hydraulic cylinder 320 continues to drive, causing the reflective pressure ring 321 to continue to move downwards. At this time, after the edge sealing block 311 contacts the inner bottom wall of the sealing sleeve 2, the edge sealing block 311 cannot continue to move downwards, the second spring 322 is compressed, and the reflective pressure ring 321 squeezes the second bearing plate 404, causing the second bearing plate 404 to drive the second lifting rod 403 to move downwards until the flexible pressing plate 407 contacts the top of the fluorescent powder pressing plate. This ensures that no matter how thick the fluorescent powder pressing plate is, the distance between the central reflector 402 and the top of the fluorescent powder pressing plate remains unchanged. At the same time, the central reflector 402 adaptively fine-tunes its own angle, so that even after the distance between the central reflector 402 and the receiver 326 changes, it can still accurately reflect all the oblique fluorescence emitted by the fluorescent powder pressing plate back to the main receiver 326 directly above. Reference Figures 1-12A reflector mounting base 406 is fixedly installed at the bottom of the second lifting rod 403. A flexible pressure plate 407 is fixedly installed at the bottom of the reflector mounting base 406. A first hinge rod 408 is fixedly installed on the reflector mounting base 406. A second hinge rod 409 is fixedly installed on the first central reflector 402. The first hinge rod 408 and the second hinge rod 409 are hinged together. A connecting rod 410 is provided between the mounting platform 401 and the central reflector 402. One end of the connecting rod 410 is hinged to the mounting platform 401, and the other end of the connecting rod 410 is hinged to the central reflector 402. The central reflector 402 is hinged together. By setting a connecting rod 410, the central reflector 402 can adaptively fine-tune its own angle. When the second lifting rod 403 moves downward, it drives the reflector mounting base 406 and the flexible pressure plate 407 to move downward until the flexible pressure plate 407 contacts the top of the fluorescent powder tablet. During this process, through the cooperation of the connecting rod 410, the relative movement between the central reflector 402 and the mounting platform 401 causes the central reflector 402 to swing itself and make fine-tuning of its angle.

[0022] Specifically, the working process or principle of this novel sealed anti-interference device for optical detection of fluorescent materials is as follows: During use, the user places the fluorescent powder tablet on the inner bottom wall of the sealing sleeve 2, and activates the cylinder to drive the sealing cover 324 downwards, so that the inside of the detection body 1 is in a connected sealed state. Simultaneously, the irradiation source 325 and receiver 326 are ready. Then, the servo drive motor is activated to drive the gear to rotate. Through the meshing of the gear and gear ring, the lower rotating ring 301 rotates, and with the cooperation of the synchronizing rod 302, the upper rotating ring 301 rotates synchronously. At this time, the inner wall of the first sliding groove 304 presses against the sliding shaft 308, and the sliding bar 3... Under the limiting cooperation of 09 and the second slide 305, the three centering drive plates 306 and the twelve synchronous positioning plates 307 move towards the center synchronously until the flexible pad 316 at the end of the centering drive plate 306 centers the fluorescent powder tablet. At this time, the synchronous positioning plate 307 above has also completed the position preset matching the tablet diameter. The hydraulic cylinder 320 is activated, which drives the reflective pressure ring 321 and the light-sealing pressure ring 323 to move downward. Since the preload of the second spring 322 is much greater than that of the first spring 314, the light-sealing pressure ring 323 first squeezes the first bearing plate 313, so that the first bearing plate 313 drives the guide lifting rod 310 and the bottom edge sealing As the light block 311 moves downward, the threaded drive rod 319 at the bottom of the edge sealing block 311 presses down on the threaded sleeve 317. Through the engagement of the large-lead non-self-locking thread, the linear motion is converted into a rotational motion, forcing the flexible centering plate 315 to swing outward to avoid it, until the edge sealing block 311 contacts the inner bottom wall of the sealing sleeve 2. At this point, the cylindrical side of the pressure plate is tightly wrapped by the V-shaped labyrinth groove with a light-absorbing coating. As the hydraulic cylinder 320 continues to press down, since the edge sealing block 311 has reached the bottom and cannot move, the second spring 322 is compressed. At this time, the reflective pressure ring 321 begins to apply pressure to the second pressure plate 404, causing the second pressure plate 404 to move... The second lifting rod 403 inside the mounting platform 401 slides downward, causing the reflector mounting base 406 and its bottom flexible pressure plate 407 to move downward until the flexible pressure plate 407 is pressed against the top of the fluorescent powder tablet. The connecting rod 410 mechanism pulls the central reflector 402 to make corresponding angle fine adjustments during the relative displacement, and the irradiation source 325 is activated to excite the fluorescent powder tablet. The waveguide fluorescence overflowing from the edge is completely absorbed by the labyrinth groove, and the fluorescence emitted at the top in anisotropic oblique direction is aggregated by the central reflector 402 and refracted towards the receiver 326 at the top. High-precision quantitative detection is completed without interference from any side light or focal length deformation.

Claims

1. A novel sealed anti-interference device for optical detection of fluorescent materials, comprising a detection body (1), wherein a sealing sleeve (2) is provided inside the detection body (1), characterized in that: The sealing sleeve (2) is equipped with an iris-type edge sealing mechanism inside, the iris-type edge sealing mechanism including, Two rotating rings (301) are staggered on a vertical axis. The rotating rings (301) are rotatably mounted on the inner wall of the sealing sleeve (2). A synchronizing rod (302) is fixed between the two rotating rings (301). A fixing ring (303) is fixed on the inner wall of the sealing sleeve (2). The fixing ring (303) and the inner bottom wall of the sealing sleeve (2) are both provided with a number of first sliding grooves (304) in a circumferential array. A number of second sliding grooves (305) are provided on the two rotating rings (301) in a circumferential array. A centering drive plate (306) is disposed between the inner bottom wall of one of the rotating rings (301) and the sealing sleeve (2), and a synchronous positioning plate (307) is disposed between the other rotating ring (301) and the fixed ring (303). A sliding shaft (308) is fixedly disposed on the top of the centering drive plate (306) and the synchronous positioning plate (307), and a sliding strip (309) is fixedly disposed on the bottom of the centering drive plate (306) and the synchronous positioning plate (307). The sliding shaft (308) is slidably sleeved inside the first sliding groove (304), and the sliding strip (309) is slidably sleeved inside the second sliding groove (305).

2. The novel sealed anti-interference device for optical detection of fluorescent materials according to claim 1, characterized in that, The synchronous positioning plate (307) is internally slidably provided with a guide lifting rod (310), the bottom of the guide lifting rod (310) is fixedly provided with an edge sealing block (311), the edge sealing block (311) is provided with a V-shaped labyrinth groove (312), the top of the guide lifting rod (310) is fixedly provided with a first pressure plate (313), and a first spring (314) is provided between the first pressure plate (313) and the synchronous positioning plate (307).

3. The novel sealed anti-interference device for optical detection of fluorescent materials according to claim 2, characterized in that, The bottom of the centering drive plate (306) is hinged with a flexible centering plate (315), and a flexible pad (316) is provided on the side of the flexible centering plate (315) near the center of the fixed ring (303). A threaded sleeve (317) is fixed on the top of the flexible centering plate (315).

4. The novel sealed anti-interference device for optical detection of fluorescent materials according to claim 3, characterized in that, The surface of the edge sealing block (311) is fixed with a short rod (318), and the bottom of the short rod (318) is fixed with a threaded drive rod (319), which is threaded inside the threaded sleeve (317).

5. A novel sealed anti-interference device for optical detection of fluorescent materials according to claim 2, characterized in that, A hydraulic cylinder (320) is provided on the sealing sleeve (2). A reflective pressure ring (321) is fixed at the output end of the hydraulic cylinder (320). A second spring (322) is provided at the bottom of the reflective pressure ring (321). A light-sealing pressure ring (323) is provided at the other end of the second spring (322). The light-sealing pressure ring (323) is located above the first pressure plate (313).

6. The novel sealed anti-interference device for optical detection of fluorescent materials according to claim 1, characterized in that, The detection body (1) is provided with a sealing cover (324) inside. An irradiation source (325) and a receiver (326) are provided on the bottom wall of the sealing cover (324). The receiver (326) is located above the center of the fixing ring (303).

7. A novel sealed anti-interference device for optical detection of fluorescent materials according to claim 5, characterized in that, The edge light-sealing block (311) is provided with a multi-angle aggregation and reflection mechanism, which includes a mounting platform (401) fixed on the edge light-sealing block (311) and a central reflector (402) below the mounting platform (401).

8. A novel sealed anti-interference device for optical detection of fluorescent materials according to claim 7, characterized in that, The mounting platform (401) is internally slidably provided with a second lifting rod (403), and a second pressure plate (404) is fixedly provided on the top of the second lifting rod (403). The second pressure plate (404) is located between the reflective pressure ring (321) and the light-sealing pressure ring (323). A third spring (405) is provided between the mounting platform (401) and the second pressure plate (404).

9. A novel sealed anti-interference device for optical detection of fluorescent materials according to claim 8, characterized in that, The bottom of the second lifting rod (403) is fixed with a reflector mounting base (406), the bottom of the reflector mounting base (406) is fixed with a flexible pressure plate (407), the reflector mounting base (406) is fixed with a first hinge rod (408), and the center reflector (402) is fixed with a second hinge rod (409). The first hinge rod (408) and the second hinge rod (409) are hinged together.

10. A novel sealed anti-interference device for optical detection of fluorescent materials according to claim 7, characterized in that, A connecting rod (410) is provided between the mounting platform (401) and the central reflector (402). One end of the connecting rod (410) is hinged to the mounting platform (401), and the other end of the connecting rod (410) is hinged to the central reflector (402).

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