A protection device for an irradiation accelerator
By designing a protective cover structure controlled by an electric push rod and transmission wheel, combined with dust removal components and fan blade airflow, the problem of dust accumulation in the scanning box was solved, enabling automatic cleaning of the titanium film window and stable operation of the irradiation equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHENGZHOU HONGYUAN BIOLOGICAL ENG CO LTD
- Filing Date
- 2026-05-07
- Publication Date
- 2026-06-09
Smart Images
Figure CN122179969A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of irradiation processing technology, and specifically relates to a protective device for irradiation accelerators. Background Technology
[0002] Irradiation processing technology utilizes the physical, chemical, and biological effects produced by the interaction between nuclear radiation or X-ray radiation and matter to treat the processed items in order to achieve predetermined goals, such as material modification, sterilization, etc. The existing utility model with announcement number CN112040628B discloses an irradiated electron linear accelerator, including an accelerator body, a belt conveyor arranged below the accelerator body, a vacuum mechanism arranged at the lower end of the accelerator body, a scanning magnet arranged at the bottom of the vacuum mechanism, and a scanning box arranged at the lower end of the scanning magnet. In the above technical solution, the inventors have found at least the following problems: the scanning box lacks an effective protective cover structure. When the equipment is not in operation, the scanning box is in an open state for a long time, which makes it easy for dust in the air to adhere to and accumulate on the surface of the titanium film window inside the scanning box. Once too much dust accumulates, it will block and interfere with the normal penetration of light, thereby reducing the scanning recognition rate and directly hindering the stable progress and operation quality of subsequent irradiation work. Therefore, a protective device for irradiation accelerators is proposed to solve the above problems. Utility Model Content
[0003] The purpose of this invention is to provide a protective device for irradiation accelerators to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a protective device for an irradiation accelerator, comprising an accelerator frame and an accelerator body mounted on the accelerator frame. A belt conveyor is disposed below the accelerator frame, and a scanning box is disposed below the accelerator body. A titanium film window is disposed inside the scanning box. A protective shell is fixedly connected to the inner wall of the accelerator frame via a connecting rod. An electric push rod is fixedly installed on the inner top wall of the protective shell. A lifting plate is fixedly installed at the vertically downward telescopic end of the electric push rod. A motor is fixedly installed at the bottom of the lifting plate. A first rotating rod is fixedly connected to the vertically downward output end of the motor. A second rotating rod is rotatably connected to the bottom of the lifting plate. A first transmission wheel is fixedly sleeved on the outer surface of the first rotating rod, and a second transmission wheel is fixedly sleeved on the outer surface of the second rotating rod. The first and second transmission wheels are connected by a transmission belt. One end of the second rotating rod extends through to the outside of the protective shell and is fixedly connected to a protective cover. A concave cavity adapted to the scanning box is opened at the top of the protective cover, and a dust removal component is disposed inside the concave cavity opened inside the protective cover.
[0005] With the above technical solution, after irradiation, the electric push rod can drive the lifting plate to move downwards, the motor drives the first rotating rod to rotate, and the first rotating rod drives the second rotating rod to rotate through the first transmission wheel and the transmission belt. The second rotating rod can drive the protective cover to rotate below the scanning box. The motor can control the protective cover to rotate 180 degrees each time. Finally, the electric push rod can drive the protective cover to rise and cover the surface of the scanning box, thereby reducing the impact of dust on the titanium film window inside the scanning box.
[0006] In a preferred embodiment, the dust removal assembly includes a spring, which is fixedly installed on the bottom wall of the concave cavity. A compression plate is fixedly installed on the top of the spring. An air bladder is installed between the compression plate and the bottom wall of the concave cavity. A nozzle is fixedly installed on the top of the compression plate. The air inlet of the nozzle is connected to the air outlet of the air bladder via a flexible hose. An air outlet is provided inside the scanning box, and the air outlet inside the scanning box is located below the titanium film window.
[0007] With the above technical solution, when the electric push rod drives the protective cover to rise and cover the surface of the scanning box, the scanning box will first touch the squeezing plate. The squeezing plate pushes the spring to contract and squeeze the airbag. The airbag can spray airflow onto the surface of the titanium film window inside the scanning box through the hose and nozzle to reduce the dust adhesion on the surface of the titanium film window. Some of the dust blown up can be discharged through the air outlet of the scanning box. Thus, the titanium film window can be automatically cleaned every time the protective cover is closed, thereby effectively reducing the residue and accumulation of dust on the surface of the titanium film window.
[0008] In a preferred embodiment, a large gear is fixedly connected to one end of the first rotating rod, a third rotating rod is rotatably connected to the protective shell, a small gear is fixedly installed on the top of the third rotating rod, the small gear meshes with the large gear, and a fan blade is fixedly connected to the end of the third rotating rod away from the small gear.
[0009] With the above technical solution, when the motor drives the first rotating rod to rotate, the first rotating rod can drive the large gear to rotate, the large gear can drive the small gear to rotate, and the small gear drives the third rotating rod and the fan blade to rotate. The rotation of the fan blade generates airflow. When the protective cover is close to or away from the fan blade, the airflow generated by the fan blade can be blown into the concave cavity opened at the top of the protective cover, thereby effectively reducing the accumulation of dust inside the concave cavity.
[0010] In a preferred embodiment, sliders are fixedly installed on both sides of the lifting plate, and the inner wall of the protective shell is provided with a groove that matches the slider.
[0011] Through the above technical solution, the sliding cooperation between the slider and the groove provides a stable motion trajectory for the vertical movement of the lifting plate. This ensures that the lifting plate can smoothly rise and fall in a predetermined direction under the action of the drive mechanism, avoiding skewness, jamming, or shaking.
[0012] Compared with the prior art, the beneficial effects of the present invention are: This is a protective device for an irradiation accelerator. An electric push rod can drive a lifting plate to move downwards, and a motor can control a second rotating rod to rotate. The second rotating rod can drive a protective cover to rotate to the bottom of the scanning box. The motor can control the protective cover to rotate 180 degrees each time. Finally, the electric push rod can drive the protective cover to rise and cover the bottom of the scanning box, thereby reducing the impact of dust on the titanium film window inside the scanning box. This protective device for an irradiation accelerator uses an electric push rod to raise the protective cover to the surface of the scanning box. When the cover is raised, the scanning box will first touch the squeezing plate. The squeezing plate pushes the spring to contract and squeeze the airbag. The airbag can spray airflow into the titanium film window surface inside the scanning box through the hose and nozzle to reduce dust adhesion on the titanium film window surface. Some of the blown dust can be discharged through the air outlet of the scanning box. Thus, the titanium film window can be automatically cleaned every time the protective cover is closed, thereby effectively reducing the residue and accumulation of dust on the surface of the titanium film window. This protective device for an irradiation accelerator has a motor that drives the first rotating rod to rotate. The first rotating rod can control the rotation of the fan blades. The rotation of the fan blades generates airflow. When the protective cover is close to or away from the fan blades, the airflow generated by the fan blades can be blown into the concave cavity opened at the top of the protective cover, thereby effectively reducing the accumulation of dust inside the concave cavity. Attached Figure Description
[0013] Figure 1 This is a frontal cross-sectional view of the present invention (partial cross-section). Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is a schematic diagram of the protective shell and connected structure of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point B.
[0014] In the diagram: 1. Accelerator frame; 2. Accelerator body; 3. Belt conveyor; 4. Scanning box; 5. Titanium film window; 6. Protective shell; 7. Electric push rod; 8. Lifting plate; 9. Motor; 10. First rotating rod; 11. Second rotating rod; 12. First transmission wheel; 13. Second transmission wheel; 14. Transmission belt; 15. Protective cover; 16. Spring; 17. Extrusion plate; 18. Airbag; 19. Nozzle; 20. Air outlet; 21. Large gear; 22. Third rotating rod; 23. Small gear; 24. Fan blade; 25. Slider. Detailed Implementation
[0015] The present invention will be further described below with reference to embodiments.
[0016] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.
[0017] Please see Figure 1-4 This invention provides a protective device for an irradiation accelerator, including an accelerator frame 1 and an accelerator body 2 mounted on the accelerator frame 1. A belt conveyor 3 is disposed below the accelerator frame 1, and a scanning box 4 is disposed below the accelerator body 2. A titanium film window 5 is disposed inside the scanning box 4. The titanium film window 5 is a conventional component in the accelerator frame 1 device for beam extraction and vacuum isolation, and is a known technology in the art. Therefore, it will not be described in detail.
[0018] Furthermore, a protective shell 6 is fixedly connected to the inner wall of the accelerator frame 1 via a connecting rod. The protective shell 6 can be made of lead plate. An electric push rod 7 is fixedly installed on the inner top wall of the protective shell 6. A lifting plate 8 is fixedly installed on the vertically downward telescopic end of the electric push rod 7. A motor 9 is fixedly installed at the bottom of the lifting plate 8. The motor 9 can be a servo motor, and the servo motor is configured to rotate 180 degrees in a single rotation. Slider blocks 25 are fixedly installed on opposite sides of the lifting plate 8. The inner wall of the protective shell 6 has a groove that matches the slider 25. The sliding cooperation between the slider 25 and the groove provides a stable motion trajectory for the up and down movement of the lifting plate 8. This ensures that the lifting plate 8 rises and falls smoothly in a predetermined direction, avoiding skewness, jamming, or shaking.
[0019] Furthermore, the vertically downward output end of the motor 9 is fixedly connected to a first rotating rod 10, and the bottom of the lifting plate 8 is rotatably connected to a second rotating rod 11. The outer surface of the first rotating rod 10 is fixedly sleeved with a first transmission wheel 12, and the outer surface of the second rotating rod 11 is fixedly sleeved with a second transmission wheel 13. The first transmission wheel 12 and the second transmission wheel 13 are connected by a transmission belt 14. One end of the second rotating rod 11 extends through to the outside of the protective shell 6 and is fixedly connected to a protective cover 15.
[0020] Furthermore, after irradiation, the electric push rod 7 can drive the lifting plate 8 to move downwards, and the motor 9 drives the first rotating rod 10 to rotate. The first rotating rod 10 drives the second rotating rod 13 and the second rotating rod 11 to rotate through the first transmission wheel 12 and the transmission belt 14. The second rotating rod 11 can drive the protective cover 15 to rotate below the scanning box 4. The motor 9 can control the protective cover 15 to rotate 180 degrees each time. Finally, the electric push rod 7 can drive the protective cover 15 to rise and cover the surface of the scanning box 4, thereby reducing the impact of dust on the titanium film window 5 inside the scanning box 4.
[0021] Furthermore, the top of the protective cover 15 has a recessed cavity adapted to the scanning box 4. The recessed cavity inside the protective cover 15 is equipped with a dust removal component, which includes a spring 16. The spring 16 is fixedly installed on the bottom wall of the recessed cavity. A pressure plate 17 is fixedly installed on the top of the spring 16. An air bag 18 is installed between the pressure plate 17 and the bottom wall of the recessed cavity. A nozzle 19 is fixedly installed on the top of the pressure plate 17. The air inlet of the nozzle 19 is connected to the air outlet of the air bag 18 through a hose. An air outlet 20 is opened inside the scanning box 4. The air outlet 20 inside the scanning box 4 is located below the titanium film window 5. When the electric push rod 7 lifts the protective cover 15 onto the surface of the scanning box 4, the scanning box 4 will first touch the squeezing plate 17. The squeezing plate 17 pushes the spring 16 to contract and squeeze the airbag 18. The airbag 18 can spray airflow onto the surface of the titanium film window 5 inside the scanning box 4 through the hose and nozzle 19 to reduce dust adhesion on the surface of the titanium film window 5. Some of the blown dust can be discharged through the air outlet 20 of the scanning box 4. Thus, the titanium film window 5 can be automatically cleaned every time the protective cover 15 is closed, thereby effectively reducing the residue and accumulation of dust on the surface of the titanium film window 5. When the protective cover 15 is closed on the scanning box 4, the air outlet 20 is not completely sealed, but a slight ventilation gap is retained.
[0022] Furthermore, a large gear 21 is fixedly connected to one end of the first rotating rod 10, and a third rotating rod 22 is rotatably connected inside the protective shell 6. A small gear 23 is fixedly installed on the top of the third rotating rod 22, and the small gear 23 meshes with the large gear 21. A fan blade 24 is fixedly connected to the end of the third rotating rod 22 away from the small gear 23. The motor 9 drives the protective cover 15 to rotate directly below the scanning box 4 or directly below the fan blade 24 to correspond to different work positions. When the motor 9 drives the first rotating rod 10 to rotate, the first rotating rod 10 can drive the large gear 21 to rotate, the large gear 21 can drive the small gear 23 to rotate, and the small gear 23 drives the third rotating rod 22 and the fan blade 24 to rotate. The rotation of the fan blade 24 generates airflow. When the protective cover 15 is close to or away from the fan blade 24, the airflow generated by the fan blade 24 can be blown into the concave cavity opened at the top of the protective cover 15, thereby effectively reducing the accumulation of dust inside the concave cavity.
[0023] The working principle of this invention is as follows: During irradiation, the item to be irradiated can be placed on the belt conveyor 3. The scanning box 4 can irradiate the item on the belt conveyor 3. After irradiation, the electric push rod 7 can drive the lifting plate 8 to move downward. The motor 9 drives the first rotating rod 10 to rotate. The first rotating rod 10 drives the second transmission wheel 13 and the second rotating rod 11 to rotate through the first transmission wheel 12 and the transmission belt 14. The second rotating rod 11 can drive the protective cover 15 to rotate below the scanning box 4. The motor 9 can control the protective cover 15 to rotate 180 degrees each time. Finally, the electric push rod 7 can drive the protective cover 15 to rise and cover the bottom of the scanning box 4, thereby reducing the impact of dust on the titanium film window 5 inside the scanning box 4. When it is necessary to open the protective cover 15, the electric push rod 7 first drives the protective cover 15 to fall. Then, the motor 9 controls the protective cover 15 to rotate 180 degrees. Finally, the electric push rod 7 controls the protective cover 15 to rise, so that the position of the protective cover 15 is higher than the bottom position of the scanning box 4. When the electric push rod 7 lifts the protective cover 15 onto the surface of the scanning box 4, the scanning box 4 will first touch the squeezing plate 17. The squeezing plate 17 pushes the spring 16 to contract and squeeze the airbag 18. The airbag 18 can spray airflow onto the surface of the titanium film window 5 inside the scanning box 4 through the hose and nozzle 19 to reduce the dust adhesion on the surface of the titanium film window 5. Some of the dust blown up can be discharged through the air outlet 20 of the scanning box 4. Thus, the titanium film window 5 can be automatically cleaned once each time the protective cover 15 is closed, thereby effectively reducing the residue and accumulation of dust on the surface of the titanium film window 5. At the same time, when the motor 9 drives the first rotating rod 10 to rotate, the first rotating rod 10 can drive the large gear 21 to rotate, the large gear 21 can drive the small gear 23 to rotate, and the small gear 23 can drive the third rotating rod 22 and the fan blade 24 to rotate. The rotation of the fan blade 24 generates airflow. When the protective cover 15 approaches or moves away from the fan blade 24, the airflow generated by the fan blade 24 can be blown into the concave cavity opened at the top of the protective cover 15, thereby effectively reducing the accumulation of dust inside the concave cavity.
[0024] The dimensions, specifications, models, and performance parameters of each structure in this application can be reasonably selected and set by those skilled in the art based on actual application scenarios and usage requirements, choosing from commercially available compatible categories, without additional limitations. Furthermore, although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A protective device for an irradiation accelerator, comprising an accelerator frame (1) and an accelerator body (2) mounted on the accelerator frame (1), characterized in that: A belt conveyor (3) is installed below the accelerator frame (1), and a scanning box (4) is installed below the accelerator body (2). A titanium film window (5) is installed inside the scanning box (4). A protective shell (6) is fixedly connected to the inner wall of the accelerator frame (1) by a connecting rod. An electric push rod (7) is fixedly installed on the inner top wall of the protective shell (6). A lifting plate (8) is fixedly installed on the vertically downward telescopic end of the electric push rod (7). A motor (9) is fixedly installed at the bottom of the lifting plate (8). A first rotating rod (10) is fixedly connected to the vertically downward output end of the motor (9). The lifting plate (8) The bottom of the first rotating rod (10) is rotatably connected to a second rotating rod (11). The outer surface of the first rotating rod (10) is fixedly sleeved with a first transmission wheel (12). The outer surface of the second rotating rod (11) is fixedly sleeved with a second transmission wheel (13). The first transmission wheel (12) and the second transmission wheel (13) are connected by a transmission belt (14). One end of the second rotating rod (11) extends through the outside of the protective shell (6) and is fixedly connected to a protective cover (15). The top of the protective cover (15) is provided with a concave cavity that is adapted to the scanning box (4). The concave cavity inside the protective cover (15) is provided with a dust removal component.
2. The protective device for an irradiation accelerator according to claim 1, characterized in that: The dust removal assembly includes a spring (16), which is fixedly installed on the bottom wall of the concave cavity. A pressure plate (17) is fixedly installed on the top of the spring (16). An air bag (18) is installed between the pressure plate (17) and the bottom wall of the concave cavity. A nozzle (19) is fixedly installed on the top of the pressure plate (17). The air inlet end of the nozzle (19) and the air outlet end of the air bag (18) are connected by a hose. An air outlet (20) is opened inside the scanning box (4). The air outlet (20) opened inside the scanning box (4) is located below the titanium membrane window (5).
3. The protective device for an irradiation accelerator according to claim 1, characterized in that: One end of the first rotating rod (10) is fixedly connected to a large gear (21), and the inside of the protective shell (6) is rotatably connected to a third rotating rod (22). A small gear (23) is fixedly installed on the top of the third rotating rod (22), and the small gear (23) meshes with the large gear (21). A fan blade (24) is fixedly connected to the end of the third rotating rod (22) away from the small gear (23).
4. A protective device for an irradiation accelerator according to claim 1, characterized in that: The lifting plate (8) is fixedly installed with sliders (25) on both sides, and the inner wall of the protective shell (6) is provided with a groove that matches the sliders (25).