Radioactive waste barrel surface dose rate detection device

Abstract

The utility model provides a radioactive waste bin surface dose rate detection device, which relates to the technical field of detection devices and comprises a bottom plate, a rotating plate is rotatably mounted on one side of the top end of the bottom plate, a positioning mechanism is arranged in the rotating plate, a moving mechanism is arranged in a vertical plate, a mounting plate is mounted on one side of the vertical plate, and a positioning mechanism is arranged in the mounting plate. A collimator is mounted at the front end of the top of the mounting plate, a high-purity germanium detector is mounted at the rear end of the top of the mounting plate, a mechanical arm is mounted on one side of the mounting plate, and a detection head is mounted at one end of the mechanical arm; a positioning mechanism is arranged in a rotating plate, and a first servo motor, a threaded rod, a threaded sleeve, a fixing plate, a limiting groove and a limiting block of the positioning mechanism are matched with one another, so that the waste bin main body can be fixed during rotating detection, and the waste bin main body is more stable and not prone to sliding during detection; therefore, the detection accuracy of the device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a device for detecting the surface dose rate of a radioactive waste barrel. Background Art

[0002] Radioactive waste storage barrels are used to store radioactive solid or liquid waste. They are special containers with fireproof, anti-theft, anti-corrosion and radiation-proof properties. There is a legal radioactive mark on the outside of the container. Before handling the radioactive waste barrel, the metering rate on its surface needs to be tested;

[0003] For example, application number CN111736197A discloses “a device for detecting the surface dose rate of low- and medium-level radioactive waste barrels and its application” and specifically discloses: the device for detecting the surface dose rate of the waste barrel comprises a lifting support assembly, a lifting power assembly, and a mechanical arm assembly; the lifting power assembly is used to drive the mechanical arm assembly to move on the lifting support assembly. However, in the above technology, when detecting the radioactive waste barrel, the waste barrel is directly placed on the waste barrel rotating assembly. Since it is inconvenient to fix the radioactive waste barrel, the radioactive waste barrel is not stable enough during detection, which easily affects the detection result, thereby reducing the accuracy of the device when used. Therefore, the utility model proposes a device for detecting the surface dose rate of a radioactive waste barrel to solve the above problem. Utility Model Content

[0004] In view of the above problems, the utility model proposes a device for detecting the surface dose rate of a radioactive waste barrel, which solves the problem in the above technology that it is inconvenient to fix the radioactive waste barrel, making the radioactive waste barrel unstable during detection, easily affecting the detection results, thereby reducing the accuracy of the device when used.

[0005] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: a device for detecting the surface dose rate of a radioactive waste barrel, comprising a bottom plate, a rotating plate is rotatably mounted on one side of the top of the bottom plate, a positioning mechanism is arranged inside the rotating plate, a waste barrel body is mounted above the rotating plate, a vertical plate is mounted on one side of the top of the bottom plate, a controller is mounted on one side of the vertical plate, a moving mechanism is arranged inside the vertical plate, a mounting plate is mounted on one side of the vertical plate, a collimator is mounted on the front end of the top of the mounting plate, a high-purity germanium detector is mounted on the rear end of the top of the mounting plate, a mechanical arm is mounted on one side of the mounting plate, and a detection head is mounted on one end of the mechanical arm;

[0006] The positioning mechanism includes a first servo motor, a threaded rod, a threaded sleeve, a fixed plate and a limiting structure. The first servo motor is installed at one end of the rotating plate. A threaded rod is installed inside the rotating plate. The threads at both ends of the threaded rod are in opposite directions. The outer side wall of the threaded rod is symmetrically provided with threaded sleeves, and a fixed plate is installed on the top of the threaded sleeve.

[0007] A further improvement is that the limiting structure includes a limiting groove and a limiting block, the limiting groove is opened inside the rotating plate, the limiting block is arranged inside the limiting groove, and the top end of the limiting block is connected to the bottom end of the threaded sleeve.

[0008] A further improvement is that the inner diameter of the limiting groove is larger than the outer diameter of the limiting block, and a sliding structure is formed between the limiting groove and the limiting block.

[0009] Further improvement is that: the moving mechanism includes a second servo motor, a screw, a screw sleeve and a guide structure, the second servo motor is installed at the top of the vertical plate, a screw is installed inside the vertical plate, the output end of the second servo motor is connected to one end of the screw, the outer side wall of the screw is provided with a screw sleeve, and one end of the screw sleeve is connected to one end of the mounting plate.

[0010] A further improvement is that the guide structure includes a limit rod and a limit sleeve, the limit rod is installed inside the vertical plate, the outer side wall of the limit rod is provided with a limit sleeve, and the front end of the limit sleeve is connected to the rear end of the mounting plate.

[0011] A further improvement is that: two limit rods are arranged inside the vertical plate, and the two limit rods are symmetrically distributed about the central axis of the vertical plate.

[0012] The beneficial effects of the utility model are as follows: by arranging a positioning mechanism inside the rotating plate, the first servo motor, the threaded rod, the threaded sleeve, the fixed plate, the limit groove and the limit block of the positioning mechanism cooperate with each other, so that the waste bucket body can be fixed during rotation detection, so that the waste bucket body is more stable during detection and not easy to slide, thereby greatly improving the accuracy of the device during detection; by arranging a moving mechanism inside the vertical plate, the second servo motor, the screw rod, the screw sleeve, the limit rod and the limit sleeve of the moving mechanism cooperate with each other, so that the mechanical arm and the detection head can be driven to move up and down, and then the detection head can be used to detect and process the waste bucket bodies at different heights, thereby greatly improving the practicality of the device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the overall structure of the positioning mechanism of the utility model;

[0015] Figure 3 It is a schematic diagram of the overall structure of the mobile mechanism of the utility model.

[0016] Among them: 1. bottom plate; 2. rotating plate; 3. waste barrel body; 4. vertical plate; 5. controller; 6. mounting plate; 7. collimator; 8. high-purity germanium detector; 9. robotic arm; 10. detection head; 11. first servo motor; 12. threaded rod; 13. threaded sleeve; 14. fixing plate; 15. limit groove; 16. limit block; 17. second servo motor; 18. screw rod; 19. screw sleeve; 20. limit rod; 21. limit sleeve. DETAILED DESCRIPTION

[0017] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0018] according to Figure 1 , 2 As shown in Figure 3, this embodiment proposes a device for detecting the surface dose rate of a radioactive waste barrel, comprising a base plate 1, a rotating plate 2 is rotatably mounted on one side of the top of the base plate 1, a positioning mechanism is arranged inside the rotating plate 2, a waste barrel body 3 is mounted above the rotating plate 2, a vertical plate 4 is mounted on one side of the top of the base plate 1, a controller 5 is mounted on one side of the vertical plate 4, a moving mechanism is arranged inside the vertical plate 4, a mounting plate 6 is mounted on one side of the vertical plate 4, a collimator 7 is mounted on the front end of the top of the mounting plate 6, a high-purity germanium detector 8 is mounted on the rear end of the top of the mounting plate 6, a mechanical arm 9 is mounted on one side of the mounting plate 6, and a detection head 10 is mounted on one end of the mechanical arm 9.

[0019] The positioning mechanism includes a first servo motor 11, a threaded rod 12, a threaded sleeve 13, a fixed plate 14 and a limiting structure. The first servo motor 11 is installed at one end of the rotating plate 2. A threaded rod 12 is installed inside the rotating plate 2. The threads at both ends of the threaded rod 12 are in opposite directions. The outer side wall of the threaded rod 12 is symmetrically provided with a threaded sleeve 13. The top of the threaded sleeve 13 is installed with a fixed plate 14. When in use, the cover of the waste bucket body 3 is removed, and the waste bucket body 3 is turned upside down on the rotating plate 2. At this time, the first servo motor 11 is started to drive the threaded rod 12 to rotate. Therefore, under the limitation of the limiting groove 15 and the limiting block 16, the threaded rod 12 is used to drive the threaded sleeve 13 to move, and then the two fixed plates 14 are driven to move. The fixed plate 14 is used to resist the inner wall of the waste bucket body 3, and then the waste bucket body 3 is fixed, so that the waste bucket body 3 is more stable and not easy to slide during detection, thereby greatly improving the accuracy of the device during detection.

[0020] The limiting structure includes a limiting groove 15 and a limiting block 16. The limiting groove 15 is opened inside the rotating plate 2. The limiting block 16 is arranged inside the limiting groove 15. The top end of the limiting block 16 is connected to the bottom end of the threaded sleeve 13. The inner diameter of the limiting groove 15 is larger than the outer diameter of the limiting block 16. A sliding structure is formed between the limiting groove 15 and the limiting block 16. When in use, the threaded sleeve 13 can be limited when moving by utilizing the mutual cooperation between the limiting groove 15 and the limiting block 16, so that the threaded sleeve 13 is more stable when moving.

[0021] The moving mechanism includes a second servo motor 17, a screw 18, a screw sleeve 19 and a guide structure. The second servo motor 17 is installed at the top of the vertical plate 4. The screw 18 is installed inside the vertical plate 4. The output end of the second servo motor 17 is connected to one end of the screw 18. The outer wall of the screw 18 is provided with a screw sleeve 19. One end of the screw sleeve 19 is connected to one end of the mounting plate 6. When in use, the second servo motor 17 is started to drive the screw 18 to rotate, thereby driving the screw sleeve 19 to move, and then under the limit of the limit rod 20 and the limit sleeve 21, the screw sleeve 19 is used to drive the mounting plate 6 to move, and then the detection head 10 is driven to move, and the surface of the waste bucket body 3 is comprehensively detected and processed, and the mechanical arm 9 and the detection head 10 can be driven to move up and down, and then the detection head 10 can be used to detect and process the waste bucket body 3 at different heights, thereby greatly improving the practicality of the device when in use.

[0022] The guide structure includes a limit rod 20 and a limit sleeve 21. The limit rod 20 is installed inside the vertical plate 4. The outer wall of the limit rod 20 is provided with a limit sleeve 21. The front end of the limit sleeve 21 is connected to the rear end of the mounting plate 6. Two limit rods 20 are provided inside the vertical plate 4. The two limit rods 20 are symmetrically distributed about the central axis of the vertical plate 4. When in use, the limit rod 20 and the limit sleeve 21 cooperate with each other to limit the mounting plate 6 when it moves, so that the mounting plate 6 can be limited when it moves, so that the mounting plate 6 is more stable when it moves.

[0023] Working principle: the staff first removes the cover of the waste bucket body 3, and turns the waste bucket body 3 upside down on the rotating plate 2. At this time, the first servo motor 11 is started to drive the threaded rod 12 to rotate. Therefore, under the limit of the limit groove 15 and the limit block 16, the threaded rod 12 drives the threaded sleeve 13 to move, and then drives the two fixed plates 14 to move. The fixed plate 14 is used to press the inner wall of the waste bucket body 3, and then the waste bucket body 3 is fixed. Then the mechanical arm 9 is started, and the mechanical arm 9 drives the detection head 10 to move. The detection head 10 is moved so that the outer surface of the waste bucket body 3 is fitted with each other, and then the rotating plate 2 is driven to rotate, thereby driving the waste bucket body 3 to rotate, and the detection head 10 is used to detect the outer surface of the waste bucket body 3, and finally the second servo motor 17 is started to drive the screw 18 to rotate, thereby driving the screw sleeve 19 to move, and then under the limit of the limit rod 20 and the limit sleeve 21, the screw sleeve 19 is used to drive the mounting plate 6 to move, and then the detection head 10 is driven to move, and the surface of the waste bucket body 3 is fully detected.

[0024] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A device for detecting the surface dose rate of a radioactive waste barrel, comprising a bottom plate (1), characterized in that: A rotating plate (2) is rotatably mounted on one side of the top of the bottom plate (1), a positioning mechanism is provided inside the rotating plate (2), a waste barrel body (3) is mounted above the rotating plate (2), a vertical plate (4) is mounted on one side of the top of the bottom plate (1), a controller (5) is mounted on one side of the vertical plate (4), a moving mechanism is provided inside the vertical plate (4), a mounting plate (6) is mounted on one side of the vertical plate (4), a collimator (7) is mounted on the front end of the top of the mounting plate (6), a high-purity germanium detector (8) is mounted on the rear end of the top of the mounting plate (6), a mechanical arm (9) is mounted on one side of the mounting plate (6), and a detection head (10) is mounted on one end of the mechanical arm (9); The positioning mechanism comprises a first servo motor (11), a threaded rod (12), a threaded sleeve (13), a fixed plate (14) and a limiting structure, wherein the first servo motor (11) is mounted at one end of a rotating plate (2), a threaded rod (12) is mounted inside the rotating plate (2), the threads at both ends of the threaded rod (12) are in opposite directions, the outer side wall of the threaded rod (12) is symmetrically provided with a threaded sleeve (13), and the top end of the threaded sleeve (13) is mounted with a fixed plate (14).

2. A device for detecting surface dose rate of a radioactive waste barrel according to claim 1, characterized in that: The limiting structure comprises a limiting groove (15) and a limiting block (16); the limiting groove (15) is opened inside the rotating plate (2); the limiting block (16) is arranged inside the limiting groove (15); the top end of the limiting block (16) is connected to the bottom end of the threaded sleeve (13).

3. A device for detecting surface dose rate of a radioactive waste barrel according to claim 2, characterized in that: The inner diameter of the limiting groove (15) is greater than the outer diameter of the limiting block (16), and a sliding structure is formed between the limiting groove (15) and the limiting block (16).

4. A device for detecting surface dose rate of a radioactive waste barrel according to claim 1, characterized in that: The moving mechanism comprises a second servo motor (17), a screw rod (18), a screw sleeve (19) and a guide structure, wherein the second servo motor (17) is mounted on the top end of the vertical plate (4), a screw rod (18) is mounted inside the vertical plate (4), an output end of the second servo motor (17) is connected to one end of the screw rod (18), an outer side wall of the screw rod (18) is provided with a screw sleeve (19), and one end of the screw sleeve (19) is connected to one end of the mounting plate (6).

5. A device for detecting surface dose rate of a radioactive waste barrel according to claim 4, characterized in that: The guide structure comprises a limiting rod (20) and a limiting sleeve (21); the limiting rod (20) is installed inside the vertical plate (4); the outer side wall of the limiting rod (20) is provided with a limiting sleeve (21); the front end of the limiting sleeve (21) is connected to the rear end of the mounting plate (6).

6. A device for detecting surface dose rate of a radioactive waste barrel according to claim 5, characterized in that: Two limit rods (20) are arranged inside the vertical plate (4), and the two limit rods (20) are symmetrically distributed about the central axis of the vertical plate (4).

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