Device for testing afterglow performance of long-afterglow luminescent material

Abstract

The utility model discloses an afterglow performance testing device for a long afterglow luminescent material, which belongs to the technical field of luminescent material detection equipment and comprises a box body, a cavity is arranged in the box body, a first opening is arranged on one side of the top of the cavity, an excitation light source is arranged above the first opening, and a detection component of the box body comprises a motor and a detection chamber. The top of the detection chamber is open, a rotating rod is arranged in the center of the detection chamber, the top end of the rotating rod is in transmission connection with the motor, the bottom end of the rotating rod is rotationally connected with the bottom of the box body, partition plates are arranged between the side wall of the detection chamber and the rotating rod and evenly distributed in the circumferential direction of the rotating rod, and a detection bin used for containing a long-afterglow luminescent material is formed between every two adjacent partition plates. A second opening and closing door is arranged on the side wall of the detection chamber located in the detection bin, the shape and the size of a top opening of the detection bin are matched with those of the first opening, and an afterglow detector probe is arranged in the detection bin. According to the utility model, excitation and detection are integrated, so that sample transfer is prevented from being influenced by external light, and the detection accuracy is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of luminescent material detection equipment, and particularly relates to a long afterglow performance testing device for long afterglow luminescent materials. Background Technique

[0002] Long afterglow materials are substances that can store part of the light energy generated by sunlight or artificial light sources, and then slowly release the stored energy in the form of visible light, and can still emit visible light for a long time after the light source is removed. Therefore, long afterglow materials are often used in fields such as emergency lighting, transportation, and bio-optical imaging.

[0003] By testing the afterglow performance of long afterglow luminescent materials, important parameters such as the afterglow time, afterglow brightness, and stability of the materials can be evaluated. At present, there is no unified and reliable testing method and special testing device for these parameters. The existing testing devices for the afterglow performance of long afterglow luminescent materials often separate the excitation device and the afterglow brightness measurement device, and it is easy to be affected by external light sources during the sample transfer process, resulting in inaccurate measurement results of the afterglow brightness and afterglow time of long afterglow luminescent materials. Content of the Utility Model

[0004] The purpose of the utility model is to provide a long afterglow performance testing device for long afterglow luminescent materials, aiming to solve the problems existing in the prior art in the above-mentioned background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A long afterglow performance testing device for long afterglow luminescent materials, including a box body. A cavity is provided at the lower part inside the box body. A first opening is arranged on one side of the top of the cavity. An excitation light source is arranged above the first opening. A detection component is arranged inside the box body. The detection component includes a motor and a detection chamber arranged inside the cavity. The top of the detection chamber is open and a rotating rod is arranged at the center thereof. The top end of the rotating rod passes through the top of the cavity and is in transmission connection with the motor, and the bottom end passes through the detection chamber and is rotatably connected to the bottom of the box body. A partition is arranged between the side wall of the detection chamber and the rotating rod. A plurality of partitions are evenly arranged along the circumferential direction of the rotating rod. A detection bin for placing long afterglow luminescent materials is formed between adjacent partitions. A second opening and closing door is arranged on the side wall of the detection chamber located inside the detection bin. The shape and size of the top opening of the detection bin are adapted to the first opening. An afterglow detector probe is arranged inside the detection bin.

[0007] Further, a first opening and closing door is arranged on the vertical side wall of the box body on the side of the first opening, and the first opening and closing door is aligned with the second opening and closing door.

[0008] Furthermore, support rods are evenly arranged circumferentially on the outside of the detection chamber of the box body, and the distance between adjacent support rods is greater than the width of the second opening door.

[0009] Furthermore, a circumferential annular flange is provided on the upper part of the side wall of the detection chamber, and a corresponding annular groove is provided on the box body. The annular flange is embedded in the annular groove and is in sliding fit with the annular groove.

[0010] Furthermore, a slideway is arranged vertically above the first opening. A support plate slidably connected to the slideway is arranged in the slideway. The excitation light source is arranged at the bottom of the support plate. An electric push rod is arranged vertically at the top of the slideway, and the telescopic end of the electric push rod is connected to the top surface of the support plate.

[0011] Furthermore, a flexible baffle is arranged at the bottom of the edge of the first opening, and the lower edge of the flexible baffle is lower than the upper edge of the partition board.

[0012] Furthermore, the partition board in the detection chamber, as well as the side wall and bottom surface of the detection chamber, are respectively provided with black coatings.

[0013] Compared with the disadvantages and deficiencies of the prior art, the present utility model has the following beneficial effects.

[0014] 1. The present utility model provides a long afterglow luminescent material afterglow performance testing device, which combines an excitation component and a detection component. The monitoring chamber is divided into multiple detection chambers by a partition board. The long afterglow luminescent material is placed in the detection chamber. The motor drives the detection chamber to rotate through a rotating rod. When the detection chamber rotates to below the first opening, the excitation light source irradiates to excite the long afterglow luminescent material. After excitation, the motor drives the detection chamber to rotate, and the detection chamber is rotated to a position away from the first opening. The afterglow detector probe in the detection chamber is used to detect the afterglow brightness and afterglow time of the long afterglow luminescent material. This long afterglow luminescent material afterglow performance testing device is provided with multiple detection chambers, and multiple long afterglow luminescent materials can be detected simultaneously, which is beneficial to improving the detection efficiency. The excitation and detection are integrally set, avoiding the adverse influence of external light sources on sample transfer, thereby ensuring the accuracy of the afterglow performance detection of the long afterglow luminescent material.

[0015] 2. In this long afterglow luminescent material afterglow performance testing device, support rods are evenly arranged circumferentially at the lower part of the box body, which is convenient for opening the second opening doors of each detection chamber, so as to take and place the long afterglow luminescent material, which is beneficial to improving the detection efficiency and operation convenience; the sliding fit structure of the annular flange and the annular groove between the detection chamber and the box body can effectively block external light from entering the detection chamber; a flexible baffle is arranged at the bottom of the edge of the first opening, and the flexible baffle is used to block the excitation light source, reducing the risk of light entering other detection chambers along the gap between the partition board and the first opening. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the internal structure of the box body in the present utility model.

[0017] Figure 2 It is a schematic diagram of the structure with a partition plate arranged in the detection chamber in the present utility model.

[0018] Figure 3 It is a schematic diagram of the structure with the first opening door arranged on the box body in the present utility model.

[0019] Figure 4 It is a schematic diagram of the structure with a support rod arranged on the box body in the present utility model.

[0020] Figure 5 It is a schematic diagram of the structure with a slideway arranged on the box body in the present utility model.

[0021] Figure 6 It is Figure 5 a partial enlarged structural schematic diagram of the A position in

[0022] In the figure: 1 - box body; 2 - cavity; 3 - detection chamber; 4 - motor; 5 - rotating rod; 6 - second opening door; 7 - support plate; 8 - excitation light source; 9 - first opening; 10 - partition plate; 11 - detection bin; 12 - first opening door; 13 - support rod; 14 - slideway; 15 - electric push rod; 16 - flexible strip; 17 - annular flange; 18 - annular groove. Specific embodiments

[0023] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0024] Refer to Figure 1 , a long afterglow luminescent material afterglow performance testing device, including a box body 1. The box body 1 adopts a cylindrical structure. A light source component and a detection component are arranged in the box body 1. Among them, the long afterglow luminescent material is placed in the detection component, and the light source component is used to irradiate and excite the long afterglow luminescent material. The excited long afterglow luminescent material performs afterglow performance testing in the detection component.

[0025] Refer to Figure 2 and Figure 3 , the lower part of the box body 1 has a cavity 2. A first opening door 12 is arranged on the vertical side wall of the box body 1 on one side of the cavity 2. The first opening door 12 is for the long afterglow luminescent material to enter and exit the box body 1. A first opening 9 is arranged at the top of the cavity 2 near the first opening door 12. The light source component is arranged above the first opening 9. The light source component includes a support plate 7. The shape and size of the support plate 7 are adapted to the first opening 9. An excitation light source 8 is arranged on the bottom surface of the support plate 7.

[0026] The detection component includes a detection chamber 3, which is arranged in the cavity 2 at the lower part of the box body 1. The top of the detection chamber 3 is open. A rotating rod 5 is arranged in the center of the detection chamber 3. The lower end of the rotating rod 5 passes through the detection chamber 3 and is rotatably connected to the bottom of the box body 1, and its upper end passes through the top of the cavity 2. The upper end of the rotating rod 5 is drivingly connected to a motor 4. Inside the detection chamber 3, partitions 10 are circumferentially and evenly arranged between the rotating rod 5 and the side wall of the detection chamber 3. The partitions 10 are respectively vertically connected to the bottom surface and the side wall of the detection chamber 3. The partitions 10 divide the detection chamber 3 into a plurality of detection bins 11. The shape and size of the top opening of the detection bin 11 are adapted to the shape and size of the first opening 9. A second opening and closing door 6 is arranged on the outer side wall inside the detection bin 11. The motor 4 drives the detection chamber 3 to rotate through the rotating rod 5, and rotates a detection bin 11 below the first opening 9. At this time, the first opening and closing door 12 is aligned with the second opening and closing door 6, which is convenient for taking and placing the long afterglow luminescent material into the detection bin 11. At the same time, the excitation light source 8 can pass through the first opening 9 to irradiate and excite the long afterglow luminescent material. After excitation, the motor 4 drives the detection chamber 3 to rotate, and rotates this detection bin 11 to a position away from the first opening 9, and the afterglow performance of the long afterglow luminescent material is detected in a dark environment.

[0027] An afterglow detector probe is arranged inside the detection bin 11, and the afterglow detector probe is used to detect the afterglow brightness and afterglow time of the long afterglow luminescent material.

[0028] In one embodiment, referring to Figures 4 - 6 , support rods 13 are circumferentially and evenly arranged at the position of the vertical side wall of the box body 1 where the detection chamber 3 is located. The lower ends of the support rods 13 are connected to the bottom of the box body 1. The distance between adjacent support rods 13 can allow the second opening and closing door 6 to open and close, which is convenient for taking and placing the long afterglow luminescent material in each detection bin 11, is beneficial to improving the detection efficiency, and an annular flange 17 is arranged outward at the upper part of the detection chamber 3, and the box body 1 is correspondingly provided with an annular groove 18. The annular flange 17 is embedded in the annular groove 18 and is in sliding fit with the annular groove 18, which is beneficial to reducing the risk of light entering the detection chamber 3 and ensuring a dark detection environment in each detection bin 11.

[0029] In one embodiment, black coatings are respectively arranged on the vertical side wall, the bottom surface and the partition 10 of the detection chamber 3 in each detection bin 11 to reduce the influence of reflected light on the afterglow measurement.

[0030] In one embodiment, a slideway 14 is vertically arranged above the first opening 9 inside the box body 1. A support plate 7 is horizontally arranged in the slideway 14, and the support plate 7 is slidably connected to the slideway 14. An electric push rod 15 is arranged at the top of the slideway 14. The telescopic end of the electric push rod 15 is vertically downward and connected to the top of the support plate 7. The electric push rod 15 is used to drive the support plate 7 to move vertically to adjust the distance between the excitation light source 8 and the long afterglow luminescent material.

[0031] In one embodiment, a flexible stop strip 16 is vertically arranged at the bottom of the edge of the first opening 9. The flexible stop strip 16 is used to block light. The lower edge position of the flexible stop strip 16 is lower than the upper edge position of the partition plate 10. When the detection chamber 3 rotates, the flexible stop strip 16 can pass along the upper edge of the partition plate. The flexible stop strip 16 is preferably made of rubber material.

[0032] When the long afterglow luminescent material afterglow performance testing device is in use, the long afterglow luminescent material is placed into the detection bin 11 through the second opening and closing door 6. The motor 4 drives the detection chamber 3 to rotate through the rotating rod 5, and the detection bin 11 containing the long afterglow luminescent material is rotated to the lower part of the first opening 9. The electric push rod 15 drives the support plate 7 to move vertically to adjust the distance between the excitation light source 8 and the long afterglow luminescent material. The excitation light source 8 irradiates and excites the long afterglow luminescent material. After excitation, the motor 4 drives the detection chamber 3 to rotate, so that the detection bin 11 rotates to a position away from the first opening 9. The afterglow brightness and afterglow time of the long afterglow luminescent material are detected by the afterglow detector probe arranged in the detection bin 11. The long afterglow luminescent material afterglow performance testing device is provided with a plurality of detection bins 11 through the partition plate 10, which is convenient for simultaneously detecting a plurality of long afterglow luminescent materials and has a high detection efficiency.

[0033] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A device for testing the afterglow performance of a long afterglow luminescent material, characterized in that: The invention comprises a box body (1), a cavity (2) is provided in the lower part of the box body (1), a first opening (9) is provided on one side of the top of the cavity (2), an excitation light source (8) is provided above the first opening (9), a detection component is provided in the box body (1), the detection component comprises a motor (4), and a detection chamber (3) arranged in the cavity (2), the top of the detection chamber (3) is open and a rotating rod (5) is provided in the center thereof, the top end of the rotating rod (5) passes through the top of the cavity (2) and is transmission-connected to the motor (4), and the bottom end passes through The detection chamber (3) is rotatably connected to the bottom of the box body (1); a partition (10) is arranged between the side wall of the detection chamber (3) and the rotating rod (5); a plurality of partitions (10) are evenly arranged along the circumference of the rotating rod (5); a detection chamber (11) for placing a long afterglow luminescent material is formed between adjacent partitions (10); a second opening and closing door (6) is arranged on the side wall of the detection chamber (3) located in the detection chamber (11); the shape and size of the top opening of the detection chamber (11) are adapted to the first opening (9); and an afterglow detector probe is arranged in the detection chamber (11).

2. The afterglow performance testing device for long afterglow luminescent materials according to claim 1, characterized in that: A first opening and closing door (12) is provided on a vertical side wall of the box body (1) located on one side of the first opening (9), and the first opening and closing door (12) is aligned with the second opening and closing door (6).

3. The afterglow performance testing device for long afterglow luminescent materials according to claim 1, characterized in that: The box body (1) is located outside the detection chamber (3), and support rods (13) are evenly arranged in the circumferential direction, and the distance between adjacent support rods (13) is greater than the width of the second opening and closing door (6).

4. The afterglow performance testing device for long afterglow luminescent materials according to claim 3, characterized in that: An annular flange (17) is circumferentially arranged on the upper part of the side wall of the detection chamber (11), and an annular groove (18) is correspondingly arranged on the box body (1), wherein the annular flange (17) is embedded in the annular groove (18) and is slidably matched with the annular groove (18).

5. The afterglow performance testing device for long afterglow luminescent materials according to claim 2 or 3, characterized in that: A slideway (14) is vertically arranged above the first opening (9), a support plate (7) slidably connected thereto is arranged in the slideway (14), the excitation light source (8) is arranged at the bottom of the support plate (7), an electric push rod (15) is vertically arranged at the top of the slideway (14), and the telescopic end of the electric push rod (15) is connected to the top surface of the support plate (7).

6. The afterglow performance testing device for long afterglow luminescent materials according to claim 5, characterized in that: A flexible baffle (16) is provided at the bottom of the edge of the first opening (9), and the lower edge of the flexible baffle (16) is lower than the upper edge of the partition (10).

7. The afterglow performance testing device for long afterglow luminescent materials according to claim 1, characterized in that: The partition plate (10) in the detection chamber (11), and the side wall and bottom surface of the detection chamber (3) are respectively provided with a black coating.

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