A fluorescent whitening agent detection device

Abstract

The application discloses a fluorescent whitening agent detection device and belongs to the technical field of detection devices. The device comprises a detection box with a box door. Two detachable sample storage barrels are symmetrically arranged on the upper end of a sliding plate. A barrel cover matched with the sample storage barrels is arranged on the upper end of the sliding plate through a rotating shaft. A driving assembly is arranged on the inner side of a supporting frame and used for driving the sliding plate to slide into the detection box first and then driving the rotating shaft to deflect so that the barrel cover is opened. The sliding plate, the two sample storage barrels, the rotating shaft, the barrel cover and the driving assembly are arranged, so that different samples can be detected and compared at the same time. Under the action of the driving assembly, the sliding plate can be driven to slide into the detection box first. After reaching the detection area, the rotating shaft is driven to deflect so that the barrel cover is opened, so that the samples in the sample storage barrels are prevented from flying in the sliding process. After the detection is completed, the barrel cover can be closed, and the sliding plate and the sample storage barrels can move outward, so that the manual operation steps are greatly reduced, and the labor intensity is reduced.

Description

Technical Field

[0001] This invention relates to the field of detection device technology, and in particular to a fluorescent whitening agent detection device. Background Technology

[0002] Fluorescent whitening agents are widely used in many fields such as papermaking, textiles, plastics, and detergents. They can absorb invisible ultraviolet light and convert it into blue or violet light with longer wavelengths, which complement the yellow light of the object itself, making the object look whiter, brighter, and more vibrant.

[0003] Most fluorescent whitening agent detection devices use a detection box containing a detection module, camera, and other components to perform detection and image capture. The images captured by the camera are transmitted to a data analysis system. This system analyzes key information such as the intensity and distribution area of ​​fluorescence in the image based on a preset algorithm. By comparing the data with standard sample data, it can accurately determine whether an item contains fluorescent whitening agents and the approximate range of their content. However, the placement and removal of samples during use is cumbersome. Staff need to manually place each sample into the detection area, which is not only inefficient but also prone to cross-contamination or spillage, affecting the accuracy of the test results. Summary of the Invention

[0004] The purpose of this invention is to provide a fluorescent whitening agent detection device in order to solve the problems of the above-mentioned technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A fluorescent whitening agent detection device includes a detection box with a door. A sliding plate is slidably arranged inside the detection box. Two detachable sample storage containers are symmetrically arranged at the upper end of the sliding plate. A container lid that cooperates with the sample storage containers is connected to the upper end of the sliding plate through a rotating shaft. A support frame that cooperates with the sliding plate is provided on the bottom surface of the detection box. A drive component is provided on the inner side of the support frame for first driving the sliding plate to slide into the detection box and then driving the rotating shaft to deflect so that the container lid opens.

[0007] It also includes a snap-fit ​​assembly that works in conjunction with the drive assembly. The lower ends of the two sample storage containers are fixedly provided with plug-in posts. The lower ends of the two plug-in posts can be moved through the sliding plate and have snap-fit ​​grooves on their outer surfaces that work in conjunction with the snap-fit ​​assembly.

[0008] As a further description of the above technical solution:

[0009] The drive assembly includes a lead screw rotatably mounted inside the support frame and a sliding frame slidably mounted on the bottom surface of the detection box. A motor for driving the lead screw to rotate is located on the outside of the support frame. A moving block for driving the sliding frame to slide is threadedly connected to the outside of the lead screw. An mounting block is fixedly mounted at the lower end of the sliding plate. The mounting block and the sliding frame are slidably connected via a slide rail. An L-shaped plate is elastically connected to the lower end of the mounting block. A groove that mates with the L-shaped plate is formed on the bottom surface of the detection box. A pressing plate for pressing the L-shaped plate into the groove is fixedly mounted inside the sliding frame. A transmission component that mates with the sliding frame is located at the lower end of the rotating shaft.

[0010] As a further description of the above technical solution:

[0011] The snap-fit ​​assembly includes a mounting shell fixedly disposed at the lower end of the sliding plate, and a snap-fit ​​plate that mates with the snap-fit ​​groove is elastically connected to one side of the mounting shell.

[0012] As a further description of the above technical solution:

[0013] The transmission component includes a housing and a horizontal plate that is elastically connected and slidably disposed inside the housing. The horizontal plate is rotatably connected to the rotating shaft via a bearing. A torsion spring is provided between the horizontal plate and the sliding plate. A spiral groove is provided at the lower end of the outer surface of the rotating shaft. A sleeve is fixedly provided on the bottom surface of the housing. A protrusion that mates with the spiral groove is provided on the inner wall of the sleeve. A pressing block is provided at the upper end of the housing for pressing the snap-fit ​​plate to disengage the snap-fit ​​plate from the snap-fit ​​groove. A ramp that mates with the lower end surface of the housing is provided on one side of the moving block.

[0014] As a further description of the above technical solution:

[0015] The slide rail has a T-shaped cross-section. A rectangular opening that cooperates with the moving block is provided on one side of the sliding frame. A limiting member that cooperates with the moving block is elastically connected to the lower end of the rectangular opening. A limiting hole that cooperates with the limiting member is provided on the bottom surface of the detection box. A baffle that restricts the movement of the sliding frame and aligns the limiting member with the limiting hole is fixed on the bottom surface of the detection box.

[0016] As a further description of the above technical solution:

[0017] The plug is square, the snap-fit ​​groove is annular, and the lower edge of the plug has a chamfer.

[0018] As a further description of the above technical solution:

[0019] The testing box is equipped with an ultraviolet lamp and a camera inside, and a controller and a display screen are located on the outside of the testing box. The ultraviolet lamp and the camera are electrically connected to the controller, and the display screen is electrically connected to the controller.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0021] In this invention, by setting up a sliding plate, two sample storage containers, a rotating shaft, a container lid, and a driving assembly, it is convenient to simultaneously test and compare different samples. Under the action of the driving assembly, the sliding plate can be driven to slide into the testing box first. After reaching the testing area, the rotating shaft is driven to deflect and open the container lid, preventing the samples inside the sample storage container from flying out during the sliding process. After the test is completed, the container lid can be closed and the sliding plate and sample storage container can be moved outward, which greatly reduces the number of manual operation steps and reduces labor intensity.

[0022] In this invention, the lid is equipped with a snap-fit ​​component that engages with the snap-fit ​​groove of the insertion post. Under normal conditions, the sample storage container is fixed in place. When disassembly is required, the drive component causes the outer shell to move upward. On one hand, the squeezing block presses against the snap-fit ​​plate, causing it to disengage from the snap-fit ​​groove, making it easy for staff to quickly disassemble the sample storage container for cleaning and replacement. On the other hand, the synergistic effect of the protrusion and the spiral groove causes the rotating shaft to rotate, opening the lid and preparing for the sample storage container to be lifted and disassembled, thus improving the efficiency of component maintenance and replacement. Attached Figure Description

[0023] Figure 1 A schematic diagram of the external structure of the detection device provided according to an embodiment of the present invention is shown;

[0024] Figure 2 A schematic diagram of the structure behind the hidden door of the detection device provided according to an embodiment of the present invention is shown;

[0025] Figure 3 A partial structural schematic diagram of the detection device provided according to an embodiment of the present invention is shown;

[0026] Figure 4 A partial structural diagram of a drive component provided according to an embodiment of the present invention is shown;

[0027] Figure 5 A schematic diagram of a sliding frame structure provided according to an embodiment of the present invention is shown;

[0028] Figure 6 A schematic diagram of the mounting hole and L-shaped plate mounting structure provided according to an embodiment of the present invention is shown;

[0029] Figure 7 A partial structural cross-sectional view of the detection box provided according to an embodiment of the present invention is shown;

[0030] Figure 8 A schematic diagram of the limiting hole and groove structure provided according to an embodiment of the present invention is shown;

[0031] Figure 9A schematic diagram of a movable block structure provided according to an embodiment of the present invention is shown;

[0032] Figure 10 A partial cross-sectional view of the sliding frame structure provided according to an embodiment of the present invention is shown;

[0033] Figure 11 A schematic diagram of the limiting member structure provided according to an embodiment of the present invention is shown;

[0034] Figure 12 A schematic diagram of the snap-fit ​​assembly and the plug-in post snap-fit ​​state provided according to an embodiment of the present invention is shown;

[0035] Figure 13 An exploded view of the snap-fit ​​assembly structure provided according to an embodiment of the present invention is shown;

[0036] Figure 14 A cross-sectional schematic diagram of a transmission component structure provided according to an embodiment of the present invention is shown.

[0037] Legend: 1. Testing box; 2. Box door; 3. Sliding plate; 4. Sample storage container; 5. Rotating shaft; 6. Container lid; 7. Support frame; 8. Baffle; 9. Lead screw; 10. Moving block; 11. Long plate; 12. Connecting plate; 13. Mounting block; 14. Extrusion plate; 15. Rectangular opening; 16. Slide rail; 17. L-shaped plate; 18. Mounting rod; 19. First spring; 20. Pressure block; 21. Insertion post; 22. Snap-fit ​​plate; 23. Outer shell; 24. Mounting shell; 25. Second spring; 26. Torsion spring; 27. Horizontal plate; 28. Extrusion block; 29. ​​Third spring; 30. Spiral groove; 31. Protrusion; 32. Sleeve; 33. Limiting hole; 34. Groove; 35. Limiting rod; 36. Fourth spring; 37. Ramp; 38. Motor. Detailed Implementation

[0038] 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.

[0039] like Figures 1-14As shown, a fluorescent whitening agent detection device includes a detection box 1 with a door 2. The door 2 is hinged to the detection box 1, and a latch that cooperates with the detection box 1 is installed on the door 2. A handle is installed on the outside of the door 2 for easy opening or closing by the operator. A sliding plate 3 is slidably provided inside the detection box 1. Two detachable sample storage containers 4 are symmetrically provided on the upper end of the sliding plate 3. The sample storage containers 4 are used to store samples. As the sliding plate 3 slides into the detection box 1, it reaches the detection area inside the detection box 1. A container lid 6 that cooperates with the sample storage containers 4 is connected to the upper end of the sliding plate 3 through a rotating shaft 5. The rotating shaft 5 and the sliding plate 3... A torsion spring 26 is provided at the rotating connection. When the lid 6 is placed on the sample storage container 4, it effectively prevents the fluorescent whitening agent from flying during the movement of the sample storage container 4 driven by the sliding plate 3. The bottom surface of the inner side of the detection box 1 is provided with a support frame 7 that cooperates with the sliding plate 3. The inner side of the support frame 7 is provided with a drive component for first driving the sliding plate 3 into the detection box 1 and then driving the rotating shaft 5 to deflect so that the lid 6 opens. When the drive component is activated, it drives the sliding plate 3 to move into the detection box 1 until one end of the sliding plate 3 abuts against the inner wall of the detection box 1. At this time, it reaches the detection area. Then the drive component runs and drives the rotating shaft 5 to rotate so that the lid 6 opens, preparing for subsequent detection.

[0040] It also includes a snap-fit ​​assembly that works in conjunction with the drive assembly. Each of the two sample storage containers 4 has a fixed insertion post 21 at its lower end. The insertion post 21 is coaxially arranged with the sample storage container 4. The lower ends of the two insertion posts 21 can move through the sliding plate 3 and have snap-fit ​​grooves on their outer surfaces that work in conjunction with the snap-fit ​​assembly. When the snap-fit ​​assembly engages with the snap-fit ​​grooves, it restricts the insertion post 21 from being pulled out upwards. When the snap-fit ​​assembly is driven by the drive assembly, it will gradually disengage from the snap-fit ​​grooves, releasing the limiting and fixing of the insertion post 21, making it convenient for staff to quickly disassemble the sample storage container 4 for cleaning and replacement.

[0041] Furthermore, the driving assembly includes a lead screw 9 rotatably disposed inside the support frame 7 and a sliding frame slidably disposed on the bottom surface of the detection box 1. The sliding frame includes a long plate 11 and a connecting plate 12 fixedly disposed on one side of the long plate 11. A motor 38 for driving the lead screw 9 to rotate is provided on the outside of the support frame 7. The output shaft of the motor 38 is connected to one end of the lead screw 9 through a coupling. A moving block 10 for driving the sliding frame to slide is threadedly connected to the outside of the lead screw 9. An mounting block 13 is fixedly disposed at the lower end of the sliding plate 3. The mounting block 13 and the sliding frame are slidably connected through a slide rail 16. There are two slide rails 16, which are parallel to each other and are respectively fixed on the upper end surfaces of the long plate 11 and the connecting plate 12. The slide rail 16 has a T-shaped cross section and is fixedly connected by hexagonal socket head cap screws. The slide rail 16 has countersunk holes for installing hexagonal socket head cap screws, so that the end of the hexagonal socket head cap screw is embedded in the countersunk hole after installation. An L-shaped plate 17 is slidably disposed at the lower end of the mounting block 13. The lower end of the mounting block 13 has a sliding cavity for sliding the L-shaped plate 17. The upper end of the mounting block 13 has a mounting cavity. A T-shaped mounting rod 18 is movably inserted through the bottom surface of the mounting cavity. The smaller end of the T-shaped mounting rod 18 is threaded to the upper end of the L-shaped plate 17. A first spring 19 is provided between the larger end of the T-shaped mounting rod 18 and the bottom surface of the mounting cavity. The bottom surface of the inner side of the detection box 1 has a groove 34 that mates with the L-shaped plate 17. An extrusion plate 14 is fixed inside the sliding frame for pressing the L-shaped plate 17 into the groove 34. The lower end of the rotating shaft 5 has a transmission component that mates with the sliding frame. When the L-shaped plate 17 is misaligned with the groove 34, the extrusion plate 14 cannot drive the L-shaped plate 17 downward. At this time, the sliding frame drives the sliding plate 3 to slide into the detection box 1. When the sliding plate 3 abuts against the inner wall of the detection box 1, that is, after reaching the detection area, the L-shaped plate 17 is aligned with the groove 34. Then the sliding frame continues to move, causing the extrusion plate 14 to move and extrude the L-shaped plate 17 (refer to the attached instruction manual). Figure 4-6 This causes the lower end of the L-shaped plate 17 to be inserted into the groove 34. As the sliding frame continues to move, the sliding frame and the mounting block 13 will have relative displacement. At this time, with the cooperation of the sliding frame and the transmission component, the rotating shaft 5 will be driven to rotate, thereby opening the bucket lid 6 and preparing for the subsequent sample testing.

[0042] Furthermore, the snap-fit ​​assembly includes a mounting shell 24 fixedly disposed at the lower end of the sliding plate 3. The mounting shell 24 is welded to the sliding plate 3 or fixedly connected by screws. One side of the mounting shell 24 is open and a snap-fit ​​plate 22 is slidably disposed thereon. The snap-fit ​​plate 22 is connected to the inner wall of the mounting shell 24 by a second spring 25.

[0043] Furthermore, a rectangular opening 15 is provided on one side of the long plate 11 to cooperate with the moving block 10. A limiting member cooperating with the moving block 10 is elastically connected to the lower end of the rectangular opening 15. The limiting member includes a limiting rod 35 that is movably provided through the bottom surface of the rectangular opening 15 and a mounting hole provided in the bottom surface of the rectangular opening 15. One end of the limiting rod 35 is provided with a pressure block 20 that is pressed by the moving block 10. The pressure block 20 is hemispherical and is connected to the bottom surface of the mounting hole through a fourth spring 36. A limiting hole 33 cooperating with the limiting rod 35 is provided on the bottom surface of the inner side of the test box 1. A baffle 8 is fixedly provided on the bottom surface of the inner side of the test box 1 to restrict the movement of the sliding frame so that the limiting rod 35 is aligned with the limiting hole 33. When the test is completed, the drive assembly drives the sliding frame and the sliding plate 3 to move outward of the test box 1 (refer to the attached instruction manual). Figure 7 Because the limiting rod 35 and the limiting hole 33 are misaligned, the moving block 10 will not slide relative to the rectangular opening 15. Therefore, when the lead screw 9 drives the moving block 10 to move, it drives the sliding frame to move. Since the bucket lid 6 is open during testing and the lower end of the L-shaped plate 17 is stuck in the groove 34, the sliding frame will first release the pressure on the transmission component when it moves, so that the rotating shaft 5 will be reset under the action of the torsion spring 26, thus causing the bucket lid 6 to deflect and close, sealing the upper end of the sample storage bucket 4. Then, as the sliding frame moves, the sliding frame will move. The movement of the frame will cause the compression plate 14 to gradually release the compression on the L-shaped plate 17. Then, under the reset action of the first spring 19, the L-shaped plate 17 will gradually separate from the groove 34. Then, the sliding frame continues to move. With the cooperation of the connecting plate 12 and the L-shaped plate 17, it will drive the L-shaped plate 17, the mounting block 13 and the sliding plate 3 to move, that is, drive the sample storage bucket 4 to move outward of the detection box 1. When the sliding part abuts against the baffle 8, the limiting rod 35 is aligned with the limiting hole 33, which prepares for the subsequent sliding of the moving block 10 in the rectangular opening 15.

[0044] Furthermore, the transmission component includes a housing 23 and a horizontal plate 27 slidably disposed inside the housing 23. The horizontal plate 27 is connected to the inner bottom surface of the housing 23 via a third spring 29. The horizontal plate 27 is rotatably connected to the rotating shaft 5 via a bearing. A torsion spring 26 is located between the horizontal plate 27 and the sliding plate 3. A spiral groove 30 is provided at the lower end of the outer surface of the rotating shaft 5. A sleeve 32 is fixedly provided on the inner bottom surface of the housing 23. The inner wall of the sleeve 32 is provided with a protrusion 31 that cooperates with the spiral groove 30. A pressing block 28 is provided at the upper end of the housing 23 for pressing the locking plate 22 to disengage the locking plate 22 from the locking groove. A side of the moving block 10 is provided with a connection to the housing 23. The ramp 37, which mates with the lower end face, is used so that when the sliding frame moves into the detection box 1, it drives the sliding plate 3 to the detection area. The continued movement of the sliding frame then presses against the outer shell 23, causing the outer shell 23 and the horizontal plate 27 to rotate as a whole. This, in turn, drives the rotating shaft 5 to rotate, thus opening the lid 6. When the sliding frame moves outward from the detection box 1 until it abuts against the baffle 8, the screw 9 continues to rotate, driving the moving block 10 to slide within the rectangular opening 15. The movement of the moving block 10 causes the ramp 37 to gradually press against the lower end of the outer shell 23, causing the outer shell 23 to move upward (see attached instruction manual). Figure 14 The upward movement of the outer shell 23 drives the sleeve 32 to move upward, which in turn causes the sleeve 32 to have a relative displacement with the rotating shaft 5. With the cooperation of the protrusion 31 and the spiral groove 30, the rotating shaft 5 rotates. At the same time, the upward movement of the outer shell 23 will drive the pressing block 28 to move upward. The upward movement of the pressing block 28 will press the snap-fit ​​plate 22, causing the snap-fit ​​plate 22 to move into the mounting shell 24, and thus causing the snap-fit ​​plate 22 to disengage from the snap-fit ​​groove. This means that when the sliding plate 3 drives the sample storage barrel 4 to move to the outside of the detection box 1, on the one hand, the barrel cover 6 is opened, and on the other hand, the snap-fit ​​plate 22 is disengaged from the snap-fit ​​groove, releasing the limiting fixation of the sample storage barrel 4. Therefore, it is convenient to disassemble and replace the sample storage barrel 4.

[0045] Furthermore, the insertion post 21 is square, which effectively prevents the sample storage container 4 from rotating. The snap-fit ​​groove is annular, so that the snap-fit ​​plate 22 can snap into the snap-fit ​​groove without needing to adjust the position of the snap-fit ​​groove during the insertion process. The lower edge of the insertion post 21 is chamfered, which makes it easy for the insertion post 21 to quickly pass through the through hole reserved on the sliding plate 3.

[0046] Furthermore, the detection chamber 1 is equipped with an ultraviolet lamp and a camera. Ultraviolet light has special optical properties. When it irradiates a substance containing optical brightener, the optical brightener absorbs the energy of the ultraviolet light and then re-emits it in the form of visible light, producing a noticeable fluorescence phenomenon. The camera is responsible for capturing this fluorescence phenomenon. Through a high-sensitivity image sensor, the camera can accurately record the fluorescence image emitted by the object under ultraviolet irradiation. The detection chamber 1 is equipped with a controller and a display screen on the outside. The ultraviolet lamp and the camera are electrically connected to the controller, and the display screen is electrically connected to the controller. The controller analyzes the data, and then the detected structure is displayed on the display screen.

[0047] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A fluorescent whitening agent detection device, comprising a detection chamber with a door, characterized in that, The testing box is equipped with a sliding plate inside. Two detachable sample storage containers are symmetrically arranged at the upper end of the sliding plate. A container lid that cooperates with the sample storage containers is connected to the upper end of the sliding plate through a rotating shaft. A support frame that cooperates with the sliding plate is provided on the bottom surface of the testing box. A drive component is provided on the inner side of the support frame for first driving the sliding plate to slide into the testing box and then driving the rotating shaft to deflect so that the container lid opens. It also includes a snap-fit ​​assembly that works in conjunction with the drive assembly. Both sample storage bins are fixedly provided with insertion posts at their lower ends. The lower ends of the two insertion posts movably pass through the sliding plate and have snap-fit ​​grooves on their outer surfaces that work in conjunction with the snap-fit ​​assembly. The drive assembly includes a lead screw rotatably mounted inside the support frame and a sliding frame slidably mounted on the bottom surface of the detection box. A motor for driving the lead screw to rotate is located on the outside of the support frame. A moving block for driving the sliding frame to slide is threadedly connected to the outside of the lead screw. An mounting block is fixedly mounted at the lower end of the sliding plate. The mounting block and the sliding frame are slidably connected via a slide rail. An L-shaped plate is elastically connected to the lower end of the mounting block. A groove that mates with the L-shaped plate is opened on the bottom surface of the detection box. A pressing plate for pressing the L-shaped plate into the groove is fixedly mounted inside the sliding frame. A transmission component that mates with the sliding frame is located at the lower end of the rotating shaft. The snap-fit ​​assembly includes a mounting shell fixedly disposed at the lower end of the sliding plate, and a snap-fit ​​plate that mates with the snap-fit ​​groove is elastically connected to one side of the mounting shell; The transmission component includes a housing and a horizontal plate that is elastically connected and slidably disposed inside the housing. The horizontal plate is rotatably connected to the rotating shaft via a bearing. A torsion spring is provided between the horizontal plate and the sliding plate. A spiral groove is provided at the lower end of the outer surface of the rotating shaft. A sleeve is fixedly provided on the bottom surface of the housing. A protrusion that mates with the spiral groove is provided on the inner wall of the sleeve. A pressing block is provided at the upper end of the housing for pressing the snap-fit ​​plate to disengage the snap-fit ​​plate from the snap-fit ​​groove. A ramp that mates with the lower end surface of the housing is provided on one side of the moving block.

2. The fluorescent whitening agent detection device according to claim 1, characterized in that, The slide rail has a T-shaped cross-section. A rectangular opening that cooperates with the moving block is provided on one side of the sliding frame. A limiting member that cooperates with the moving block is elastically connected to the lower end of the rectangular opening. A limiting hole that cooperates with the limiting member is provided on the bottom surface of the detection box. A baffle that restricts the movement of the sliding frame and aligns the limiting member with the limiting hole is fixed on the bottom surface of the detection box.

3. The fluorescent whitening agent detection device according to claim 1, characterized in that, The plug is square, the snap-fit ​​groove is annular, and the lower edge of the plug has a chamfer.

4. The fluorescent whitening agent detection device according to claim 1, characterized in that, The testing box is equipped with an ultraviolet lamp and a camera inside, and a controller and a display screen are located on the outside of the testing box. The ultraviolet lamp and the camera are electrically connected to the controller, and the display screen is electrically connected to the controller.

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