Inspection bench with dust-free effect
By designing a transparent dust-free cover and a self-cleaning mechanism with a nano-titanium dioxide coating on the inspection table, the problem of dust affecting the inspection accuracy of optical glass is solved, achieving the stability of the dust-free environment and efficient self-cleaning effect.
Patent Information
- Application Number
- CN202520519883.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-24
AI Technical Summary
Dust particles falling on the surface of optical glass affect the accuracy of refractive index detection, causing interference with the light propagation path and a decrease in detection precision.
A dust-free inspection station was designed, which uses a transparent dust-free cover and a nano-titanium dioxide coating. The transparent dust-free cover is equipped with a fan and a dust filter. The nano-titanium dioxide reacts with water and oxygen in the air to generate hydroxyl radicals for self-cleaning. Combined with the fan, airflow circulation is formed to maintain a dust-free environment.
It achieves self-cleaning function on the optical glass surface, improves detection accuracy and usability, and ensures the stability of the dust-free environment.
Smart Images

Figure CN223931462U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of optical glass inspection device technology, and in particular to an inspection table with a dust-free effect. Background Technology
[0002] When optical glass undergoes refractive index testing, the refractive index, as a key optical parameter, directly affects the performance of optical glass in various precision optical instruments. The principle of refractive index testing is based on the refraction of light in different media. Equipment such as the Abbe refractometer is commonly used to accurately measure the angle of refraction when light enters the optical glass from the air, and then calculate the refractive index of the glass.
[0003] However, in actual testing scenarios, dust becomes a problem affecting the accuracy of testing. Once tiny dust particles land on the surface of optical glass, they will interfere with the light propagation path. On the one hand, dust particles will cause local scattering of light, causing deviations in the intensity and angle of the light received by the refractometer, thus leading to inaccurate measurement of the refraction angle and ultimately causing the refractive index calculation result to deviate from the true value. On the other hand, if dust adheres to the contact surface of the optical glass, it will damage the tight fit between the two and affect the testing accuracy.
[0004] Therefore, we propose a testing station with a dust-free environment. Utility Model Content
[0005] To address the aforementioned problems, this utility model provides an inspection station with a dust-free effect.
[0006] The technical solution of this utility model is:
[0007] A dust-free inspection table includes a testing table. The bottom surface of the testing table is fixedly connected to rectangularly distributed support columns. The top surface of the testing table has a groove, the bottom surface of which is a filter screen. A transparent dust-free cover is inserted into the inner wall of the groove. The bottom surface of the transparent dust-free cover is open. An electric telescopic rod is installed on the bottom surface of the groove. A support is fixedly connected to the output end of the electric telescopic rod. A sealing opening is provided on the top surface of the transparent dust-free cover, and a sealing plug is inserted into the inner wall of the sealing opening. A quick-installation assembly is provided on the testing table. An LED light is fixedly installed on the top inner wall of the transparent dust-free cover, and the connecting wire of the LED light extends outside the transparent dust-free cover. A display panel is fixedly connected to the top side wall of the testing table.
[0008] In a further technical solution, the quick-installation assembly includes a mounting groove formed at the bottom of the side wall of the transparent cleanroom hood, and the mounting groove is symmetrical. A spring is fixedly connected to the inner wall of the mounting groove, and a locking block fixedly connected to the other end of the spring is inserted into the opening of the mounting groove. The bottom surface of the locking block is inclined. A slot is formed on the inner side wall of the groove to engage with the locking block. A movable groove communicating with the slot is formed on the outer surface of the testing platform. A push rod is inserted into the inner wall of the movable groove, and the end of the push rod away from the slot extends to the outside of the testing platform. When in use, simply insert the transparent cleanroom cover directly into the groove. During the process, the inclined surface of the locking block contacts the inner edge of the top opening of the groove and is then pressed into the mounting slot to compress the spring. When the bottom of the transparent cleanroom cover is completely against the bottom surface of the groove, the locking block pops out and extends into the inner wall of the slot to form a limit. When it is necessary to release the limit, push the push rod from the outside of the testing platform into the groove to push the locking block out of the inner wall of the slot. Since the length of the end of the push rod located on the outside of the testing platform is the same as the length of the locking block entering the slot, the locking block can be directly pushed out of the slot without affecting the upward removal of the transparent cleanroom cover.
[0009] In a further technical solution, the inner wall of the transparent dustproof cover is coated with a nano-titanium dioxide coating. When the light emitted by the LED strip light shines on the coating, the nano-titanium dioxide is excited and can react with water and oxygen in the air to generate hydroxyl radicals with strong oxidizing properties. These hydroxyl radicals can oxidize and decompose pollutants such as dust and organic matter attached to the surface of the dustproof cover into carbon dioxide and water, thereby realizing the self-cleaning function of the dustproof cover surface.
[0010] In a further technical solution, the bottom side wall of the transparent cleanroom cover has an air vent, and a dustproof net is fixedly connected to the inner wall of the air vent. The side wall of the testing platform has an air outlet communicating with the air vent. The top of the inner wall of the transparent cleanroom cover is fixedly connected to a uniformly distributed fan. When the fan starts running, it can blow the air inside the transparent cleanroom cover downwards to the bottom surface of the groove, forming a top-down airflow circulation. The air is discharged through the gaps at the bottom surface of the groove, thereby keeping the transparent cleanroom cover dust-free. At the same time, the air vent is used to replenish the air inside the transparent cleanroom cover that is reduced due to the airflow discharge, ensuring the stable operation of the internal airflow circulation. The dustproof net can effectively filter the air entering the transparent cleanroom cover and prevent external dust from entering through the dustproof net.
[0011] In a further technical solution, the diameter of the support is consistent with the inner diameter of the sealing port, which facilitates the direct driving of the electric telescopic rod to allow the support to insert the sealing plug into and out of the sealing port during material feeding.
[0012] The beneficial effects of this utility model are:
[0013] The inspection station features a groove on its top surface and a matching transparent dust-free cover. It can be quickly installed by inserting a locking block directly into the groove to create a snap-fit seal. During use, the LED light illuminates the nano-titanium dioxide coating on the transparent dust-free cover, creating a photocatalytic effect. Combined with ventilation between the dust-free cover and the inspection station, water and oxygen in the air react to generate highly oxidizing hydroxyl radicals. These radicals oxidize and decompose dust, organic matter, and other contaminants adhering to the dust cover surface into carbon dioxide and water, achieving a self-cleaning function. Furthermore, the downward airflow from the fan allows dust and moisture to flow out through the bottom of the groove, enabling the inspection station to self-clean before placing optical glass for inspection. Simultaneously, it maintains air circulation in a dust-free environment during use, improving the practicality of the existing inspection station. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0015] Figure 2 This is a schematic diagram of the assembly structure of the testing station and transparent dust-free cover according to an embodiment of this utility model;
[0016] Figure 3 This is a partial cross-sectional structural diagram of the testing platform and transparent dust-free cover according to an embodiment of this utility model;
[0017] Figure 4 This is an embodiment of the present utility model. Figure 3 A magnified structural diagram of point A in the middle.
[0018] Explanation of reference numerals in the attached figures:
[0019] 1. Testing table; 2. Support column; 3. Groove; 4. Transparent dust-free cover; 5. Electric telescopic rod; 6. Support; 7. Sealing port; 8. Sealing plug; 9. Fan; 10. Vent; 11. Dustproof net; 12. Air vent; 13. Mounting slot; 14. Spring; 15. Locking block; 16. Locking groove; 17. Moving groove; 18. Push rod; 19. LED light; 20. Display board. Detailed Implementation
[0020] The embodiments of this utility model will be further described below with reference to the accompanying drawings.
[0021] Example:
[0022] like Figures 1-4As shown, the inspection table with a dust-free effect includes an inspection table 1. A rectangular distribution of support columns 2 is fixedly connected to the bottom surface of the inspection table 1. A groove 3 is formed on the top surface of the inspection table 1, with a filter screen at the bottom. A transparent dust-free cover 4 is inserted into the inner wall of the groove 3. The bottom surface of the transparent dust-free cover 4 is open. An electric telescopic rod 5 is installed on the bottom surface of the groove 3, and a support 6 is fixedly connected to the output end of the electric telescopic rod 5. A sealing opening 7 is formed on the top surface of the transparent dust-free cover 4, and a sealing plug 8 is inserted into the inner wall of the sealing opening 7. A quick-installation assembly is provided on the inspection table 1. An LED light 19 is fixedly installed on the top inner wall of the transparent dust-free cover 4, with the connecting wire of the LED light 19 extending outside the transparent dust-free cover 4. A display panel 20 is fixedly connected to the top side wall of the inspection table 1. The component includes a mounting groove 13 formed at the bottom of the side wall of the transparent cleanroom cover 4, and the mounting groove 13 is symmetrical. A spring 14 is fixedly connected to the inner wall of the mounting groove 13. A locking block 15, which is fixedly connected to the other end of the spring 14, is inserted into the opening of the mounting groove 13. The bottom surface of the locking block 15 is inclined. A locking groove 16 is formed on the inner side wall of the groove 3 to engage with the locking block 15. A moving groove 17, which communicates with the locking groove 16, is formed on the outer surface of the testing table 1. A push rod 18 is inserted into the inner wall of the moving groove 17, and the end of the push rod 18 away from the locking groove 16 extends to the outer side of the testing table 1. In use, the transparent cleanroom cover 4 is directly inserted into the groove 3. During the process, the inclined surface of the locking block 15 contacts the inner edge of the top opening of the groove 3, and is then pressed into the mounting groove 13 to compress the spring 14. When the transparent cleanroom cover 4 is in use, the spring 14 is compressed. When the bottom of the cleanroom cover 4 is completely flush with the bottom surface of the groove 3, the locking block 15 pops out and extends into the inner wall of the slot 16 to form a limit. When it is necessary to release the limit, push rod 18 is pushed from the outside of the detection table 1 into the groove 3, pushing the locking block 15 out of the inner wall of the slot 16. Since the length of the end of push rod 18 located outside the detection table 1 is the same as the length of the locking block 15 entering the slot 16, the locking block 15 can be directly pushed out of the slot 16 without affecting the upward removal of the transparent cleanroom cover 4. The inner wall of the transparent cleanroom cover 4 is coated with a nano titanium dioxide coating. When the light emitted by the LED strip light shines on the coating, the nano titanium dioxide is excited and can react with water and oxygen in the air to generate hydroxyl radicals with strong oxidizing properties. These hydroxyl radicals can remove the dust adhering to the surface of the dust cover. Dust, organic matter, and other pollutants are oxidized and decomposed into carbon dioxide and water, achieving a self-cleaning function on the surface of the dust cover. A vent 10 is provided on the bottom side wall of the transparent dust cover 4, and a dustproof mesh 11 is fixedly connected to the inner wall of the vent 10. An air vent 12 communicating with the vent 10 is provided on the side wall of the testing platform 1. Evenly distributed fans 9 are fixedly connected to the top of the inner wall of the transparent dust cover 4. When the fans 9 start operating, they blow the air inside the transparent dust cover 4 downwards towards the bottom surface of the groove 3, forming a top-down airflow circulation. The air is then discharged through the gaps at the bottom surface of the groove 3, thus maintaining the dust-free state of the transparent dust cover 4. Simultaneously, the vent 10 is used to replenish the air lost due to the airflow discharge inside the transparent dust cover 4, ensuring stable operation of the internal airflow circulation.The dustproof net 11 effectively filters the air entering the transparent dust-free hood 4, preventing external dust from entering through it. The diameter of the support 6 matches the inner diameter of the sealing port 7, facilitating direct drive of the electric telescopic rod 5 during material discharge to allow the support 6 to move the sealing plug 8 in and out of the sealing port 7.
[0023] The working principle of the above technical solution is as follows:
[0024] First, place the Abbe refractometer on the surface of the display panel 20. Then, insert the transparent cleanroom cover 4 into the groove 3. During this process, the locking block 15 contacts the inner edge of the top opening of the groove 3. The inclined surface of the locking block 15 is pressed into the mounting groove 13, squeezing the spring 14, and the transparent cleanroom cover 4 is continuously inserted until its bottom is completely attached to the bottom surface of the groove 3. At this time, the locking block 15 is ejected by the action of the spring 14 and extends into the locking groove 16 on the inner side wall of the groove 3, completing the locking and sealing between the transparent cleanroom cover 4 and the testing table 1. Next, the first step of self-cleaning is performed. The LED light 19 is turned on, and the light shines on the nano titanium dioxide coating on the inner wall of the transparent cleanroom cover 4. The nano titanium dioxide is excited and reacts with water and oxygen in the air to generate hydroxyl radicals with strong oxidizing properties, which oxidize and decompose the dust, organic matter and other pollutants attached to the surface of the dust cover into carbon dioxide. Carbon dioxide and water are removed, and then fan 9 is activated to blow downwards towards the bottom of groove 3, forming a downward airflow circulation. Under the action of airflow, the decomposed dust and moisture flow downwards through the filter screen at the bottom of groove 3. At the same time, external air enters through the vent 10 on the bottom side wall of the transparent cleanroom cover 4. The dustproof mesh 11 on the inner wall of vent 10 filters out the dust in the air, ensuring that the air entering the transparent cleanroom cover 4 is clean and maintaining stable internal airflow circulation. Finally, the electric telescopic rod 5 is driven to raise the support 6 and push it out from the sealing port 7. The optical glass is placed on the support 6 through the sealing port 7. The electric telescopic rod 5 is driven again to lower the support 6, bringing the optical glass into the transparent cleanroom cover 4. At the same time, the sealing plug 8 is reinserted into the sealing port 7 to ensure the airtightness of the transparent cleanroom cover 4. Then, inspection can be carried out.
[0025] The above embodiments merely illustrate specific implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.
Claims
1. A dust-free inspection table, comprising an inspection table (1), wherein the bottom surface of the inspection table (1) is fixedly connected with rectangularly distributed support columns (2), characterized in that: The top surface of the testing platform (1) is provided with a groove (3), the bottom surface of the groove (3) is a filter screen, a transparent dust-free cover (4) is inserted into the inner wall of the groove (3), the bottom surface of the transparent dust-free cover (4) is open, an electric telescopic rod (5) is provided on the bottom surface of the groove (3), a support (6) is fixedly connected to the output end of the electric telescopic rod (5), a sealing port (7) is provided on the top surface of the transparent dust-free cover (4), a sealing plug (8) is inserted into the inner wall of the sealing port (7), a quick installation assembly is provided on the testing platform (1), an LED light (19) is fixedly installed on the top of the inner wall of the transparent dust-free cover (4), the connecting wire of the LED light (19) extends out of the outside of the transparent dust-free cover (4), and a display board (20) is fixedly connected to the top side wall of the testing platform (1).
2. The inspection table with dust-free effect according to claim 1, characterized in that: The quick-installation assembly includes an installation groove (13) at the bottom of the side wall of the transparent dust-free cover (4), and the installation groove (13) is symmetrical. A spring (14) is fixedly connected to the inner wall of the installation groove (13). A locking block (15) fixedly connected to the other end of the spring (14) is inserted into the opening of the installation groove (13). The bottom surface of the locking block (15) is inclined. A slot (16) that engages with the locking block (15) is opened on the inner side wall of the groove (3). A moving groove (17) communicating with the slot (16) is opened on the outer surface of the testing table (1). A push rod (18) is inserted into the inner wall of the moving groove (17), and the end of the push rod (18) away from the slot (16) extends to the outside of the testing table (1).
3. The inspection table with dust-free effect according to claim 1, characterized in that: The inner wall of the transparent dustproof cover (4) is coated with a nano-titanium dioxide coating.
4. The inspection table with dust-free effect according to claim 1, characterized in that: The bottom side wall of the transparent dust-free cover (4) is provided with an air vent (10), and the inner wall of the air vent (10) is fixedly connected with a dustproof net (11). The side wall of the testing platform (1) is provided with an air vent (12) that communicates with the air vent (10). The top of the inner wall of the transparent dust-free cover (4) is fixedly connected with evenly distributed fans (9).
5. The inspection table with dust-free effect according to claim 1, characterized in that: The diameter of the support (6) is the same as the inner diameter of the sealing port (7).