Shielding detection device for radiation protection door

Abstract

The utility model discloses a radiation protection door shielding detection device which comprises a rack, a placing groove is arranged on the top wall of the rack, a radiation protection door is placed in the placing groove, a first driving assembly, a second driving assembly and a detection assembly are arranged on the rack, and the detection assembly and the second driving assembly are both arranged on the first driving assembly. The utility model belongs to the technical field of radiation protection doors, and particularly relates to a radiation protection door shielding detection device.

Description

Technical Field

[0001] The utility model belongs to the technical field of radiation protection doors, and particularly relates to a shielding detection device for radiation protection doors. Background Technique

[0002] Radiation protection doors are widely used in large nuclear facilities, irradiation processing, radioactive waste treatment, radioactive source storage and other nuclear-related process rooms or laboratories. These places often have strong γ-rays, which can cause potential irradiation effects on personnel, the public and the environment. Therefore, radiation protection doors must be used to shield and protect the γ-rays in the above-mentioned related places. After the radiation protection doors are manufactured, their shielding performance needs to be detected to ensure that the factory-produced radiation protection doors have qualified shielding performance.

[0003] The existing shielding detection device for radiation protection doors cannot move the radiation source and the radiation detector synchronously during the detection of radiation protection doors, which reduces the accuracy of the detection device. Content of the Utility Model

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a shielding detection device for radiation protection doors, which effectively solves the problem of asynchronous movement of the radiation source and the radiation detector.

[0005] In order to achieve the above functions, the technical solution adopted by the utility model is as follows: A shielding detection device for radiation protection doors, including a frame. A placement groove is provided on the top wall of the frame, and a radiation protection door is placed in the placement groove. A driving component one, a driving component two and a detection component are provided on the frame, and the detection component and the driving component two are both arranged on the driving component one;

[0006] The detection component includes a support frame and a second threaded rod. The support frame is fixed on the driving component one. The second threaded rod is rotatably arranged at the top end of the support frame. A second sleeve block is threadedly sleeved on the second threaded rod. A lead collimator and a radiation detector are respectively installed on the second sleeve block.

[0007] Preferably, the driving component one includes an external connection plate and a first threaded rod. The external connection plate is fixed on the outer side wall of the top of the frame. The first threaded rod is rotatably arranged on the external connection plate. A first driving motor connected to the first threaded rod is provided on the external connection plate. A first sleeve block is threadedly sleeved on the first threaded rod.

[0008] Preferably, the driving component two includes a second driving motor, a driving sprocket and a chain. The second driving motor is fixed on the outer side wall of the first sleeve block. The driving sprocket is arranged on the second driving motor. One end of the second threaded rod is fixed with an end sprocket. The driving sprocket and the end sprocket are meshed, and the chain is wound around the driving sprocket and the end sprocket.

[0009] Preferably, the support frames are symmetrically arranged above and below the first sleeve block, and the radiation detector and the lead collimator are respectively located above and below the radiation protection door.

[0010] Preferably, balls are provided on the bottom wall of the placement groove.

[0011] Preferably, both the first sleeve block and the second sleeve block are of square block structures and are respectively in close contact with the outer side wall of the frame and the top wall of the support frame.

[0012] The beneficial effects of the present utility model adopting the above structure are as follows: By emitting a radiation source from the lead collimator on one side of the radiation protection door and detecting the radiation dose by the radiation detector on the other side, the shielding performance of the radiation protection door is detected. The first driving component drives the lead collimator and the radiation detector to move synchronously in the Y direction, and the second driving component drives the lead collimator and the radiation detector to move synchronously in the X direction to achieve a full - range detection of the radiation protection door. The lead collimator and the radiation detector move synchronously, further increasing the accuracy of the detection result. Description of the Drawings

[0013] Figure 1 is the overall structural schematic diagram of a radiation protection door shielding detection device proposed by the present utility model;

[0014] Figure 2 is Figure 1 the partial enlarged view at A in

[0015] Figure 3 is the front view of a radiation protection door shielding detection device proposed by the present utility model;

[0016] Figure 4 is the top view of a radiation protection door shielding detection device proposed by the present utility model.

[0017] Among them, 1. Frame, 2. Placement groove, 3. Radiation protection door, 4. First driving component, 5. Detection component, 6. Second driving component, 7. Support frame, 8. Second threaded rod, 9. Second sleeve block, 10. Lead collimator, 11. Radiation detector, 12. External connection plate, 13. First threaded rod, 14. First sleeve block, 15. First driving motor, 16. Second driving motor, 17. Driving sprocket, 18. End sprocket, 19. Chain, 20. Ball. Detailed Embodiment

[0018] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. The following further describes the present utility model in detail with reference to the drawings.

[0020] As Figures 1-4 shown, a radiation protection door shielding detection device proposed by the present utility model includes a frame 1. A placement groove 2 is provided on the top wall of the frame 1. A radiation protection door 3 is placed in the placement groove 2. Ball bearings 20 are provided on the bottom wall of the placement groove 2 to assist the up and down movement of the radiation protection door 3. A driving component one 4, a driving component two 6 and a detection component 5 are provided on the frame 1 to detect the radiation protection door 3. The detection component 5 and the driving component two 6 are both arranged on the driving component one 4 to synchronously move the radiation source and the radiation detector 11. The detection component 5 includes a support frame 7 and a second threaded rod 8. The support frame 7 is fixed on the driving component one 4. The second threaded rod 8 is rotatably arranged at the top of the support frame 7. A second sleeve block 9 is threadedly sleeved on the second threaded rod 8. A lead collimator 10 and a radiation detector 11 are respectively installed on the second sleeve block 9. The lead collimator 10 emits a radiation source, and the radiation detector 11 detects the radiation dose. The support frame 7 is symmetrically arranged above and below the first sleeve block 14. The radiation detector 11 and the lead collimator 10 are respectively located above and below the radiation protection door 3.

[0021] As Figure 1 、 3 shown, the driving component one 4 includes an external connection plate 12 and a first threaded rod 13. The external connection plate 12 is fixed on the outer side wall of the top of the frame 1. The first threaded rod 13 is rotatably arranged on the external connection plate 12. A first driving motor 15 connected to the first threaded rod 13 is provided on the external connection plate 12. A first sleeve block 14 is threadedly sleeved on the first threaded rod 13. The first driving motor 15 drives the first threaded rod 13 to rotate. The first threaded rod 13 drives the first sleeve block 14 and the support frame 7 to move, thereby driving the lead collimator 10 and the radiation detector 11 to synchronously move in the Y direction.

[0022] As Figure 1 、 2As shown in the figure, the second driving component 6 includes a second driving motor 16, a driving sprocket 17 and a chain 19. The second driving motor 16 is fixed on the outer side wall of the first sleeve block 14. The driving sprocket 17 is arranged on the second driving motor 16. One end of the second threaded rod 8 is fixed with an end sprocket 18. The driving sprocket 17 and the end sprocket 18 are meshed. The chain 19 is wound around the driving sprocket 17 and the end sprocket 18. The second driving motor 16 drives the driving sprocket 17 to rotate. The driving sprocket 17 drives the chain 19 and the end sprocket 18 to rotate, thereby driving the second threaded rod 8 to rotate, so that the lead collimator 10 and the radiation detector 11 move synchronously in the X direction. Both the first sleeve block 14 and the second sleeve block 9 are of square block structures and are respectively in close contact with the outer side wall of the frame 1 and the top wall of the support frame 7, so that the first sleeve block 14 and the second sleeve block 9 move stably in a straight line.

[0023] During specific use, the radiation protection door 3 is placed on the placement groove 2 of the frame 1. With the assistance of the balls 20, the radiation protection door 3 can be pushed to a suitable position on the support frame 7. When detecting the radiation protection door 3, the lead collimator 10 emits a beam of rays. After the beam of rays passes through the radiation protection door 3, it is received by the radiation detector 11. The radiation detector 11 obtains the shielded air kerma rate at the corresponding position of the radiation protection door 3 according to the received beam of rays. The second driving motor 16 drives the driving sprocket 17 to rotate. The driving sprocket 17 drives the chain 19 and the end sprocket 18 to rotate, thereby driving the second threaded rod 8 to rotate, so that the lead collimator 10 and the radiation detector 11 move synchronously in the X direction. The first driving motor 15 drives the first threaded rod 13 to rotate. The first threaded rod 13 drives the first sleeve block 14 and the support frame 7 to move, thereby driving the lead collimator 10 and the radiation detector 11 to move synchronously in the Y direction, so as to perform a full-range detection on the radiation protection door 3.

[0024] The above describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and without departing from the creative purpose of the present invention, without creative design, they design a structural manner and an embodiment similar to the technical solution, which shall fall within the protection scope of the present invention.

Claims

1. A radiation protection door shielding detection device, characterized in that: The invention comprises a frame (1), wherein a placement groove (2) is provided on the top wall of the frame (1), a radiation protection door (3) is placed in the placement groove (2), a drive component 1 (4), a drive component 2 (6) and a detection component (5) are provided on the frame (1), and the detection component (5) and the drive component 2 (6) are both arranged on the drive component 1 (4); The detection assembly (5) comprises a support frame (7) and a second threaded rod (8), wherein the support frame (7) is fixed on the first drive assembly (4), the second threaded rod (8) is rotatably arranged on the top of the support frame (7), the second threaded rod (8) is threadedly sleeved with a second sleeve block (9), and the second sleeve block (9) is respectively mounted with a lead collimator (10) and a radiation detector (11).

2. A radiation protection door shielding detection device according to claim 1, characterized in that: The driving assembly (4) comprises an external plate (12) and a threaded rod (13); the external plate (12) is fixed on the outer side wall of the top of the frame (1); the threaded rod (13) is rotatably arranged on the external plate (12); a driving motor (15) connected to the threaded rod (13) is arranged on the external plate (12); and a sleeve block (14) is threadedly sleeved on the threaded rod (13).

3. A radiation protection door shielding detection device according to claim 2, characterized in that: The second drive assembly (6) comprises a second drive motor (16), a drive sprocket (17) and a chain (19); the second drive motor (16) is fixed on the outer wall of the first sleeve (14); the drive sprocket (17) is arranged on the second drive motor (16); an end sprocket (18) is fixed at one end of the second threaded rod (8); the drive sprocket (17) and the end sprocket (18) are meshedly arranged; and the chain (19) is wound around the drive sprocket (17) and the end sprocket (18).

4. A radiation protection door shielding detection device according to claim 3, characterized in that: The support frame (7) is symmetrically arranged above and below the sleeve block (14), and the radiation detector (11) and the lead collimator (10) are respectively located above and below the radiation protection door (3).

5. A radiation protection door shielding detection device according to claim 4, characterized in that: A ball (20) is provided on the bottom wall of the placement groove (2).

6. A radiation protection door shielding detection device according to claim 5, characterized in that: The first sleeve block (14) and the second sleeve block (9) are both square block structures and are respectively closely attached to the outer wall of the frame (1) and the top wall of the support frame (7).

Images