Waterproof coating anti-aging component on-line fluorescence spectrum detection device

Abstract

This invention discloses an online fluorescence spectroscopy detection device for the aging-resistant components of waterproof coatings, belonging to the field of coating waterproofness testing technology. It utilizes a combination of a fluorescence excitation component and a spectral acquisition component for detection. Finally, based on the fluorescence intensity and a calibration model, the specific content of the aging-resistant components is calculated. After fluorescence spectroscopy detection, the macroscopic physical properties of the waterproof coating are verified by immersion to determine the coating's functional effectiveness in actual use. By enabling simultaneous immersion of two samples at different depths in the same immersion container, the same immersion liquid system, and under the same disturbance conditions, the comprehensiveness of the detection is improved. The swaying movement design, through small lateral swings, ensures that each detection surface of the sample can fully contact the immersion liquid, guaranteeing that the extracted component data during subsequent fluorescence spectroscopy detection accurately reflects the overall aging-resistant performance of the sample, rather than partial data from local areas.

Description

Technical Field

[0001] This invention relates to the field of waterproof coating testing technology, specifically to an online fluorescence spectroscopy detection device for the aging-resistant components of waterproof coatings. Background Technology

[0002] Waterproof coatings are core protective materials for construction, municipal, and water conservancy projects. Their aging resistance directly determines the lifespan of the protective structure. The dissolution characteristics of the aging-resistant components in waterproof coatings are key indicators for evaluating their aging resistance. Immersion physical testing combined with fluorescence spectroscopy is currently the mainstream technical method in the industry for detecting the dissolution patterns of aging-resistant components in waterproof coatings. This method simulates the actual immersion conditions of waterproof coatings to complete the sample aging treatment, and then uses a fluorescence spectrometer to detect the components of the sample and the immersion solution, achieving precise quantitative analysis of the dissolution amount and dissolution rate of aging-resistant components.

[0003] Patent publication number C221631252U relates to the field of coating waterproofness testing technology. It includes a testing box with a slider and clamping plate mounted on it via a bidirectional screw and slide rail. A mounting plate is located on the rear top of the testing box, and a housing is mounted on top of the mounting plate. A rotating shaft is mounted inside the housing, with a support rod at the top end of the shaft. A fixing plate is mounted on the support rod, and an electric push rod is located at the front bottom of the fixing plate. A motor is mounted at the end of the telescopic arm at the bottom of the electric push rod, and a stirring blade is mounted on the motor's power output shaft. Under the action of the stirring blade, the test liquid in the box-shaped non-woven fabric can move, simulating the scouring of waterproof materials by water in motion, resulting in more comprehensive test results. The clamping plate ensures the fixation quality while improving the applicability of the device, meeting the needs of actual testing.

[0004] The aforementioned patents have significant limitations in practice: in the actual application of waterproof coatings, the dissolution rate and loss amount vary significantly at different depths. Without a high-low structure, only dissolution data at a single depth can be obtained, which cannot provide a quantitative basis for coating formulation optimization and application scenario selection. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an online fluorescence spectroscopy detection device for the aging-resistant components of waterproof coatings, thus solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an online fluorescence spectroscopy detection device for the aging-resistant components of waterproof coatings, comprising a base and a sliding frame mounted on the base, the online fluorescence spectroscopy detection device further comprising: The detection device mounted on the base is used to generate fluorescence to analyze the chemical properties of the material; The detection device includes a fluorescence excitation component mounted on the slide frame, a spectral acquisition component mounted on the slide frame, and an immersion tank mounted on the base; The detection device also includes a mounting plate installed on the slide frame, a top cover installed on the mounting plate, a gear sleeve installed in the immersion tank, a slide rod installed in the gear sleeve, a rack frame installed in the immersion tank, a rotating placement plate installed on the rack frame, a fixing button installed on the placement plate, a toothed frame installed in the immersion tank, and a drive gear installed on the placement plate. Rotating the slide rod causes the slide rod to drive the transmission block to rotate. The rotation of the transmission block causes the drive groove to rotate through the matching groove. The rotation of the drive groove causes the gear sleeve to rotate. The rotation of the gear sleeve, through the setting of the rack frame, causes the placement plates on both sides to move along an up-and-down trajectory.

[0007] According to the above technical solution, the fluorescence excitation component includes an ultraviolet light source and a focusing module. The ultraviolet light source is used to emit excitation light of a specific wavelength, and the focusing module focuses the excitation light onto the surface of the sample to be tested to excite the anti-aging component to generate characteristic fluorescence. The ultraviolet light source emits excitation light of a specific wavelength, and the focusing module focuses the divergent excitation light into a high-energy light spot, which is accurately projected onto the detection site on the sample surface. After the anti-aging component in the waterproof coating absorbs the excitation light energy, the molecules transition from the ground state to the excited state. The anti-aging component molecules in the excited state are extremely unstable and will quickly return to the ground state, while releasing characteristic fluorescence with a wavelength greater than that of the excitation light. The spectral acquisition component includes a fluorescence detector and a spectrometer. The spectrometer is used to separate the characteristic fluorescence emitted by the sample, and the fluorescence detector is used to capture the separated fluorescence spectral signal. The spectrometer performs spectroscopic processing on the mixed fluorescence emitted by the sample, filters out the characteristic fluorescence band corresponding to the target anti-aging component, and filters out stray light. The characteristic fluorescence signal purified by spectroscopic processing is captured by the fluorescence detector, which converts the optical signal into an electrical signal and then transmits it to the control and analysis unit of the subsequent peripheral devices.

[0008] According to the above technical solution, a water inlet is provided on the left side of the immersion tank, and a water outlet is provided on the right side of the immersion tank; the contact surfaces of the gear sleeve and the rack frame mesh with each other; a torsion spring is provided between the placement plate and the rack frame, and the placement plate is reset by the torsion spring; a slot is provided on the placement plate; a torsion spring is provided between the fixing button and the placement plate, and the fixing button is reset by the torsion spring; the contact surfaces of the rack frame and the drive gear mesh with each other, and the drive gear moves synchronously while the placement plate moves; the drive gear intermittently contacts the rack frame when it moves, thereby causing the drive gear to rotate; the rotation of the drive gear causes the placement plate to rotate, so that the placement plate moves in a swaying motion while moving.

[0009] According to the above technical solution, the detection device further includes a transmission block installed on the slide bar and a drive groove installed on the gear sleeve, wherein the drive groove has a groove body that matches the transmission block.

[0010] According to the above technical solution, the online fluorescence spectroscopy detection device also includes a disturbance mechanism installed on the immersion tank; the disturbance mechanism includes a fixed frame installed on the immersion tank and a rotating sleeve rotatably installed on the fixed frame; the inner wall of the rotating sleeve is provided with a groove that matches the transfer block, and the gear sleeve is manually rotated as the sole power input source, and the two core functions of moving the placement plate up and down and stirring the immersion tank are seamlessly switched by pushing and pulling the slide rod.

[0011] According to the above technical solution, the disturbance mechanism further includes a rotating rod rotatably installed inside the immersion tank. The rotating rod is connected to the rotating sleeve via a belt drive, and a wave plate is installed on the rotating rod. The rotating rod passes through a spring box and a gear reducer installed on the immersion tank. A spring spring is provided inside the spring box, which stores energy when the rotating rod is rotated, and when the energy is released, the spring spring drives the rotating rod to rotate with a certain elastic force. The gear reducer is provided with several gears with different numbers of teeth, and the several gears with different numbers of teeth are meshed together to convert the high-speed, low-torque of the rotating rod into a low-speed, high-torque, so that the wave plate rotates at a low speed.

[0012] According to the above technical solution, the online fluorescence spectroscopy detection device further includes a splash-proof mechanism installed on the immersion tank; the splash-proof mechanism includes a guide rail rod installed on the immersion tank and a baffle installed inside the immersion tank.

[0013] According to the above technical solution, the splash-proof mechanism further includes a turntable mounted on the rotating rod, an eccentric rod mounted on the turntable, and a connecting sleeve mounted on the eccentric rod; the turntable has at least two slots, and the connecting sleeve is used to connect the baffle and the eccentric rod. The rotation of the turntable drives the eccentric rod to move. Through the setting of the eccentric rod, the connecting sleeve is driven to move up and down along the guide rod. At the same time as the connecting sleeve moves, it also drives the baffle to move, so that the baffle also moves up and down, so that the height of the baffle can be matched by the rotation amplitude of the rotating rod.

[0014] According to the above technical solution, the splash-proof mechanism also includes a fixed rod installed on the immersion tank, a drive sleeve rotatably installed in the fixed rod, and a limiting rod installed in the drive sleeve. In the default state, the turntable is locked by the limiting rod, so that it will not rotate. Before operating the above two embodiments, the drive sleeve needs to be rotated to make the internal thread groove drive the limiting rod to rotate, so that it is disengaged from the slot of the turntable. Only after it is completely disengaged can the operation continue.

[0015] According to the above technical solution, the inner wall of the drive sleeve is provided with a threaded groove, and the limiting rod is provided with a groove that matches the threaded groove of the drive sleeve.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this invention, a sample coated with a waterproof coating is placed on a mounting plate using a detection device. The sample is then detected using a combination of a fluorescence excitation component and a spectral acquisition component. Finally, based on the fluorescence intensity and a calibration model, the specific content of the anti-aging components is calculated. After detecting the anti-aging components of the waterproof coating using fluorescence spectroscopy, the macroscopic physical properties of the waterproof coating are verified using a water immersion method to determine the coating's functional effectiveness in actual use. By enabling simultaneous immersion of two samples at different depths under the same immersion container, the same immersion liquid system, and the same disturbance conditions, the comprehensiveness of the detection is improved. The swing-type movement design ensures that each detection surface of the sample can fully contact the immersion liquid through small lateral swings, guaranteeing that the extracted component data during subsequent fluorescence spectroscopy detection accurately reflects the overall anti-aging performance of the sample, rather than partial data from a localized area.

[0017] 2. In this invention, by setting up a disturbance mechanism, the rotation of the wave plate causes relative water flow disturbance between the sample surface and the water, simulating the dynamic impact of rainwater erosion and natural water flow on the coating. This is more in line with the actual application scenarios of waterproof coatings in roofing and underground engineering, solving the problems of incomplete static immersion testing and data distortion. When the rotating rod rotates, the energy is stored in the spring inside the spring box, and the rotation speed and torque of the rotating rod are kept stable through the gear reduction box. After the spring energy storage is completed, there is no need for continuous manual operation. The spring can drive the rotating rod to achieve short-term autonomous rotation. This solution uses manual rotation of the gear sleeve as the only power input source. The push and pull of the slide rod completes the seamless switching of the two core functions of moving the placement plate up and down and stirring the immersion box. Compared with designing a separate power source for the rotating rod, it realizes the reuse of power source.

[0018] 3. In this invention, the anti-splash mechanism locks the turntable by a limit rod in the default state. Operation can only continue after the limit rod is completely disengaged. This prevents accidental operation of related components in the immersion tank due to external force, which could interfere with the test procedure. The rotating rod also drives the turntable to rotate, which in turn moves the eccentric rod. The eccentric rod causes the connecting sleeve to move up and down along the guide rail. Simultaneously, the moving connecting sleeve also moves the baffle, causing it to move up and down. This allows the height of the baffle to be matched to the rotation of the rotating rod, achieving dynamic anti-splashing. This reduces the probability of liquid splashing, prevents the splashed immersion liquid or evaporating waterproof coating from corroding core components, and extends the device's service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure at the positions of the fluorescence excitation component and the spectral acquisition component of the present invention; Figure 3 This is a schematic diagram of the structure at the location of the mounting plate and the top cover of the present invention; Figure 4 This is a schematic diagram of the internal structure of the immersion tank of the present invention; Figure 5 This is a schematic diagram of the structure at the position of the gear sleeve and the slide bar in this invention; Figure 6 This is a schematic diagram of the structure at the position of the tooth frame and the placement plate of the present invention; Figure 7 This is a schematic diagram of the structure at the positions of the transmission block and the rotating sleeve of the present invention; Figure 8 This is a schematic diagram of the structure at the position of the rotating rod and the rotating sleeve of the present invention; Figure 9 This is a schematic diagram of the structure at the positions of the turntable and the baffle in this invention; Figure 10 This is a schematic diagram of the structure at the position of the limiting rod and the turntable in this invention.

[0020] The meanings of the labels in the diagram are as follows: 1. Base; 2. Slide rail frame; 3. Fluorescence excitation assembly; 4. Spectrum acquisition assembly; 5. Immersion tank; 6. Water inlet; 7. Water outlet; 10. Mounting plate; 101. Top cover; 11. Gear sleeve; 12. Slide rod; 13. Rack frame; 14. Placement plate; 15. Fixing button; 16. Gear frame; 17. Drive gear; 18. Transmission block; 19. Drive groove; 20. Fixing frame; 21. Rotating sleeve; 22. Rotating rod; 23. Belt; 24. Clockwork box; 25. Gear reducer; 26. Wave plate; 30. Guide rail rod; 31. Baffle; 32. Turntable; 33. Eccentric rod; 34. Connecting sleeve; 35. Fixing rod; 36. Drive sleeve; 37. Limiting rod. Detailed Implementation

[0021] 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, and 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.

[0022] Example 1: Please see Figures 1-10One embodiment of the present invention is: an online fluorescence spectroscopy detection device for the aging-resistant components of waterproof coatings, comprising a base 1 and a slide frame 2 mounted on the base 1, the online fluorescence spectroscopy detection device further comprising: The detection device installed on the base 1 is used to generate fluorescence for the analysis of the chemical properties of the material. After detecting the aging-resistant components of the waterproof coating by fluorescence spectroscopy, it is usually necessary to combine it with other physical detection methods. The two are not substitutes, but complementary verification and stratified evaluation. Fluorescence spectroscopy can only confirm the content of the aging-resistant components, but the content of the components meeting the standard does not mean that the coating performance meets the standard. The detection device includes a fluorescence excitation component 3 mounted on the slide frame 2, a spectral acquisition component 4 mounted on the slide frame 2, and an immersion tank 5 mounted on the base 1; The testing device also includes a placement plate 10 mounted on the slide frame 2, a top cover 101 mounted on the placement plate 10, a gear sleeve 11 mounted in the immersion tank 5, a slide rod 12 mounted in the gear sleeve 11, a rack frame 13 mounted in the immersion tank 5, a rotating placement plate 14 mounted on the rack frame 13, a fixing button 15 mounted on the placement plate 14, a toothed frame 16 mounted in the immersion tank 5, and a drive gear 17 mounted on the placement plate 14. By enabling two samples to be simultaneously immersed at different depths under the same immersion container, the same immersion liquid system, and the same disturbance conditions, the comprehensiveness of the testing is improved.

[0023] The fluorescence excitation component 3 includes an ultraviolet light source and a focusing module. The ultraviolet light source is used to emit excitation light of a specific wavelength, and the focusing module focuses the excitation light onto the surface of the sample to be tested, so as to excite the aging-resistant components to generate characteristic fluorescence. The spectral acquisition component 4 includes a fluorescence detector and a spectrometer. The spectrometer is used to separate the characteristic fluorescence emitted by the sample, and the fluorescence detector is used to capture the separated fluorescence spectral signal.

[0024] The immersion tank 5 has an inlet 6 on the left side and an outlet 7 on the right side. The gear sleeve 11 and the rack frame 13 mesh with each other. A torsion spring 1 is provided between the placement plate 14 and the rack frame 13. The placement plate 14 is reset by the torsion spring 1. A groove is provided on the placement plate 14. A torsion spring 2 is provided between the fixing button 15 and the placement plate 14. The fixing button 15 is reset by the torsion spring 2. The gear frame 16 and the drive gear 17 mesh with each other. The swinging movement drives the liquid in the immersion tank 5 to flush all areas of the sample surface through a small lateral swing. At the same time, it breaks the adhesion of air bubbles and ensures that each detection surface of the sample can fully contact the immersion liquid. This ensures that the extracted component data can truly reflect the overall aging resistance of the sample during subsequent fluorescence spectroscopy detection, rather than the partial data of a local area.

[0025] The detection device also includes a transmission block 18 mounted on the slide bar 12 and a drive groove 19 mounted on the gear sleeve 11. The drive groove 19 has a groove inside that matches the transmission block 18.

[0026] In this embodiment, the sample coated with a waterproof coating is placed on the mounting plate 10. A specific wavelength of excitation light is emitted by the fluorescence excitation component 3 (ultraviolet light source). The focusing module focuses the divergent excitation light into a high-energy spot, precisely projecting it onto the detection site on the sample surface. After absorbing the excitation light energy, the anti-aging components in the waterproof coating transition from the ground state to the excited state. The excited-state anti-aging component molecules are extremely unstable and quickly return to the ground state, simultaneously releasing characteristic fluorescence with a wavelength greater than the excitation light. Subsequently, the spectral acquisition component 4 (spectral module) performs spectroscopic processing on the mixed fluorescence emitted by the sample, filtering out the characteristic fluorescence band corresponding to the target anti-aging component and removing stray light. The spectroscopically purified characteristic fluorescence signal is captured by the fluorescence detector. The detector converts the light signal into an electrical signal, which is then transmitted to the control and analysis unit of the subsequent peripherals. Finally, based on the fluorescence intensity and the calibration model, the specific content of the anti-aging component is calculated. After detecting the anti-aging component of the waterproof coating using fluorescence spectroscopy, other physical testing methods are usually required. These two methods are not substitutes but complementary verification and stratified evaluation. Fluorescence spectroscopy can only confirm the content of the anti-aging component, but meeting the component content standard does not mean that the coating performance meets the standard. This solution verifies the macroscopic physical properties of the waterproof coating through immersion to determine the functional effectiveness of the coating in actual use. The specific method is as follows: After fluorescence detection, the test liquid is injected into the immersion tank 5 through the inlet 6, and then the mounting plate 10 is pushed into the slide. The sample is stored in the rack 2. As the placement plate 10 moves, the top cover 101 moves, opening the immersion tank 5. At this point, at least two samples can be placed on the placement plates 14 on both sides and secured with the fixing buttons 15. Then, the slide rod 12 is rotated, causing the transfer block 18 to rotate. The rotation of the transfer block 18, through the matching tank, causes the drive tank 19 to rotate. The rotation of the drive tank 19 then causes the gear sleeve 11 to rotate. The rotation of the gear sleeve 11, through the rack frame 13, causes the placement plates 14 on both sides to move in an up-and-down trajectory. In practical applications of waterproof coatings, different parts of the coating are immersed to different depths, resulting in significant differences in the dissolution rate and loss of aging-resistant components. Traditional immersion tests only measure a single depth. Immersion at a fixed depth cannot simulate actual depth gradient conditions. By allowing two samples to be simultaneously immersed at different depths under the same immersion container, immersion liquid system, and disturbance conditions, the comprehensiveness of the detection is improved. As the placement plate 14 moves, it drives the drive gear 17 to move synchronously. The drive gear 17 intermittently contacts the toothed frame 16 during its movement, causing it to rotate. This rotation of the drive gear 17, in turn, drives the placement plate 14 to rotate, resulting in a swaying movement of the placement plate 14. The rotation of the placement plate 14 is then reset by a torsion spring. If waterproof coating samples are only immersed in a straight line, a liquid retention layer and bubble adhesion area are easily formed on the sample surface, or insufficient liquid contact occurs in the grooves and corners of the sample.Uneven leaching and soaking reactions of the anti-aging components can occur due to the swaying motion. The swaying motion, through small lateral swings, flushes the entire sample surface with liquid within the immersion tank 5, breaking up air bubbles and ensuring full contact between each surface and the immersion liquid. This guarantees that the extracted component data during subsequent fluorescence spectroscopy accurately reflects the overall anti-aging performance of the sample, rather than isolated data from localized areas. After the detection time is reached, the test liquid is discharged through outlet 7. Then, by swaying the placement plate 14 back to its original position or by the operator continuously rotating the slide bar 12, any remaining test liquid on the placement plate 14 and the sample surface is ejected and drained through the trough in the placement plate 14. Afterward, an external air dryer can assist in drying. By weighing the mass change before and after immersion, the water penetration resistance and density of the coating can be assessed.

[0027] Example 2: Please see Figures 1-10 Based on the above embodiments, in another embodiment of the present invention, the online fluorescence spectroscopy detection device further includes a disturbance mechanism installed on the immersion tank 5; the disturbance mechanism includes a fixed frame 20 installed on the immersion tank 5 and a rotating sleeve 21 rotatably installed on the fixed frame 20; the inner wall of the rotating sleeve 21 is provided with a groove that matches the transfer block 18, and the two core functions of moving the placement plate 14 up and down and stirring the immersion tank 5 are seamlessly switched by pushing and pulling the slide rod 12. Compared with designing a separate power source for the rotating rod 22, the power source reuse is realized.

[0028] The disturbance mechanism also includes a rotating rod 22 installed in the immersion tank 5. The rotating rod 22 is connected to the rotating sleeve 21 by a belt 23. A wave plate 26 is installed on the rotating rod 22. The rotating rod 22 passes through a spring box 24 and a gear reducer 25 installed in the immersion tank 5. A spring spring is installed in the spring box 24 to store energy when the rotating rod 22 is rotated. When the energy is released, the spring spring drives the rotating rod 22 to rotate with a certain elastic force. The gear reducer 25 is equipped with several gears with different numbers of teeth, and the gears with different numbers of teeth are meshed to convert the high-speed, low-torque of the rotating rod 22 into a low-speed, high-torque, so that the wave plate 26 rotates at a low speed. The rotation of the wave plate 26 causes relative water flow disturbance between the sample surface and the water, simulating the dynamic impact of rainwater erosion and natural water flow on the coating. This is more in line with the actual use scenario of waterproof coatings in roofing and underground engineering, and solves the problems of incomplete static immersion testing and data distortion.

[0029] In this embodiment, when the slide bar 12 is rotated, the transmission block 18 can be inserted into the groove of the rotating sleeve 21 by pushing the slide bar 12. This causes the rotating sleeve 21 to rotate along the fixed frame 20 when the slide bar 12 is rotated, and the gear sleeve 11 loses its power source. The rotation of the rotating sleeve 21 is driven by the belt 23, causing the rotating rod 22 to rotate synchronously. The rotation of the rotating rod 22 drives the oscillating plate 26 to rotate. In actual use, the waterproof coating is not in a static immersion environment, but is subject to dynamic water effects such as rainwater erosion, water flow disturbance, and slight deformation of the substrate. Traditional immersion tests place the sample statically in water, which deviates greatly from the actual working conditions, resulting in the test results not being able to truly reflect the water resistance, adhesion, and peel resistance of the coating. The rotation of the oscillating plate 26 causes the sample surface to... The water generates relative water flow disturbance, simulating the dynamic impact of rainwater erosion and natural water flow on the coating, which is more in line with the actual application scenarios of waterproof coatings in roof and underground projects. It solves the problems of incomplete static immersion detection and data distortion. When the rotating rod 22 rotates, the energy is stored in the spring inside the spring box 24, and the rotation speed and torque of the rotating rod 22 are kept stable through the gear reduction box 25. After the spring energy is stored, there is no need for continuous manual operation. The spring can drive the rotating rod 22 to achieve short-term autonomous rotation. This solution uses manual rotation of the gear sleeve 11 as the only power input source. The push and pull of the slide rod 12 completes the seamless switching of the two core functions of moving the placement plate 14 up and down and stirring the immersion tank 5. Compared with designing a separate power source for the rotating rod 22, the power source reuse is realized.

[0030] Example 3: Please see Figures 1-10 Based on the above embodiments, in another embodiment of the present invention, the online fluorescence spectroscopy detection device further includes a splash-proof mechanism installed on the immersion tank 5; the splash-proof mechanism includes a guide rail rod 30 installed on the immersion tank 5 and a baffle 31 installed inside the immersion tank 5.

[0031] The splash-proof mechanism also includes a turntable 32 mounted on the rotating rod 22, an eccentric rod 33 mounted on the turntable 32, and a connecting sleeve 34 mounted on the eccentric rod 33. The turntable 32 has at least two slots, and the connecting sleeve 34 is used to connect the baffle 31 and the eccentric rod 33. The height of the baffle 31 can be matched by the rotation amplitude of the rotating rod 22, which is a dynamic splash-proof mechanism. This reduces the probability of liquid splashing, prevents the splashed liquid or the evaporation liquid of the waterproof coating from corroding the core components, and extends the service life of the device.

[0032] The splash-proof mechanism also includes a fixed rod 35 installed on the immersion tank 5, a drive sleeve 36 rotatably installed in the fixed rod 35, and a limit rod 37 installed in the drive sleeve 36.

[0033] The inner wall of the drive sleeve 36 is provided with a threaded groove, and the limit rod 37 is provided with a groove that matches the threaded groove of the drive sleeve 36. Operation can only continue after the limit rod 37 is completely disengaged, so as to prevent the relevant components in the immersion tank 5 from being operated prematurely due to accidental contact by external force, which would interfere with the test procedure.

[0034] In this embodiment, under default conditions, the turntable 32 is locked by the limiting rod 37, preventing it from rotating. Before operating the two embodiments described above, the drive sleeve 36 must be rotated to cause the internal threaded groove to rotate the limiting rod 37, disengaging it from the slot of the turntable 32. Operation can only continue after it is completely disengaged to prevent accidental operation of related components in the immersion tank 5 due to external force, which could interfere with the test steps. While the rotating rod 22 rotates, it also drives the turntable 32 to rotate. The rotation of the turntable 32 drives the eccentric rod 33 to move. The eccentric rod 33 causes the connecting sleeve 34 to move up and down along the guide rail 30. While the connecting sleeve 34 moves, it also drives the baffle 31 to move, causing the baffle 31 to also move up and down. This allows the height of the baffle 31 to be matched with the rotation amplitude of the rotating rod 22, i.e., dynamic splash prevention, reducing the probability of liquid splashing and preventing the splashed immersion liquid or waterproof coating evaporation from corroding the core components, thus extending the service life of the device.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An online fluorescence spectroscopy detection device for the aging-resistant components of waterproof coatings, comprising a base (1) and a slide frame (2) mounted on the base (1), characterized in that, The online fluorescence spectroscopy detection device also includes: The detection device installed on the base (1) is used to generate fluorescence to analyze the chemical properties of the material; The detection device includes a fluorescence excitation component (3) mounted on the slide frame (2), a spectral acquisition component (4) mounted on the slide frame (2), and an immersion tank (5) mounted on the base (1). The detection device also includes a mounting plate (10) mounted on the slide frame (2), a top cover (101) mounted on the mounting plate (10), a gear sleeve (11) mounted in the immersion tank (5), a slide rod (12) mounted in the gear sleeve (11), a rack frame (13) mounted in the immersion tank (5), a rotatable placement plate (14) mounted on the rack frame (13), a fixing button (15) mounted on the placement plate (14), a toothed frame (16) mounted in the immersion tank (5), and a drive gear (17) mounted on the placement plate (14).

2. The online fluorescence spectroscopy detection device for the aging-resistant components of waterproof coatings according to claim 1, characterized in that: The fluorescence excitation component (3) includes an ultraviolet light source and a focusing module. The ultraviolet light source is used to emit excitation light of a specific wavelength, and the focusing module focuses the excitation light onto the surface of the sample to be tested in order to excite the aging-resistant components to produce characteristic fluorescence. The spectral acquisition component (4) includes a fluorescence detector and a spectrometer module. The spectrometer module is used to separate the characteristic fluorescence emitted by the sample, and the fluorescence detector is used to capture the separated fluorescence spectral signal.

3. The online fluorescence spectrometry detection device for the aging-resistant components of waterproof coatings according to claim 1, characterized in that: The immersion tank (5) has a water inlet (6) on the left side and a water outlet (7) on the right side. The contact surfaces of the gear sleeve (11) and the rack frame (13) mesh with each other. A torsion spring is provided between the placement plate (14) and the rack frame (13). A slot is provided on the placement plate (14). A torsion spring is provided between the fixing button (15) and the placement plate (14). The contact surfaces of the gear frame (16) and the drive gear (17) mesh with each other.

4. The online fluorescence spectrometry detection device for the aging-resistant components of waterproof coatings according to claim 3, characterized in that: The detection device also includes a transmission block (18) mounted on the slide bar (12) and a drive groove (19) mounted on the gear sleeve (11), wherein the drive groove (19) has a groove that matches the transmission block (18) inside.

5. The online fluorescence spectroscopy detection device for the aging-resistant components of waterproof coatings according to claim 4, characterized in that: The online fluorescence spectroscopy detection device also includes a disturbance mechanism installed on the immersion tank (5); The disturbance mechanism includes a fixed frame (20) mounted on the immersion tank (5) and a rotating sleeve (21) rotatably mounted on the fixed frame (20). The inner wall of the rotating sleeve (21) is provided with a groove that matches the transmission block (18).

6. The online fluorescence spectrometry detection device for the aging-resistant components of waterproof coatings according to claim 5, characterized in that: The disturbance mechanism also includes a rotating rod (22) rotatably installed in the immersion tank (5), the rotating rod (22) and the rotating sleeve (21) are connected by a belt (23), and a wave plate (26) is installed on the rotating rod (22). The rotating rod (22) passes through the spring box (24) and the gear reducer (25) mounted on the immersion tank (5); The spring box (24) is provided with a spring spring, which is used to store energy when the rotating rod (22) is rotated, and when the energy is released, the spring spring drives the rotating rod (22) to rotate with a certain elastic force. The gear reducer (25) is equipped with several gears with different numbers of teeth, and the gears with different numbers of teeth are meshed together to convert the high-speed small torque of the rotating rod (22) into low-speed large torque, so that the wave plate (26) rotates at low speed.

7. The online fluorescence spectroscopy detection device for the aging-resistant components of waterproof coatings according to claim 6, characterized in that: The online fluorescence spectroscopy detection device also includes a splash-proof mechanism installed on the immersion tank (5); The splash-proof mechanism includes a guide rail (30) mounted on the immersion tank (5) and a baffle (31) mounted inside the immersion tank (5).

8. The online fluorescence spectrometry detection device for the aging-resistant components of waterproof coatings according to claim 7, characterized in that: The splash-proof mechanism also includes a turntable (32) mounted on the rotating rod (22), an eccentric rod (33) mounted on the turntable (32), and a connecting sleeve (34) mounted on the eccentric rod (33). The turntable (32) has at least two slots, and the connecting sleeve (34) is used to connect the baffle (31) and the eccentric rod (33).

9. The online fluorescence spectrometry detection device for the aging-resistant components of waterproof coatings according to claim 8, characterized in that: The splash-proof mechanism also includes a fixed rod (35) installed on the immersion tank (5), a drive sleeve (36) rotatably installed in the fixed rod (35), and a limiting rod (37) installed in the drive sleeve (36).

10. The online fluorescence spectrometry detection device for the aging-resistant components of waterproof coatings according to claim 9, characterized in that: The inner wall of the drive sleeve (36) is provided with a threaded groove, and the limiting rod (37) is provided with a groove that matches the threaded groove of the drive sleeve (36).

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