Metering and calibrating device for ionizing radiation equipment

Abstract

The utility model discloses an ionizing radiation equipment metering calibration device, which comprises a metering calibration box, a moving plate, a radiation box, a storage box, a closing plate, an electromagnet and a door plank, a placing table is arranged in the metering calibration box, a motor A is arranged in the placing table, a screw rod is arranged at the power shaft end of the motor A, and the moving plate is arranged on the moving plate. Ball nuts are installed on two sections of threads, in different directions, of the lead screw in a threaded mode, clamping plates are installed on the ball nuts, a radiation box is installed in the metering calibration box, a window is formed in the radiation box, a storage box is installed in the radiation box, a containing groove is formed in the storage box, and a clamping groove is formed in the storage box. A radiation source block is fixedly installed in the containing groove, a motor B is installed on the storage box, a sealing plate is installed at the power shaft end of the motor B, and one side face of the sealing plate is attached to the bottom face of the storage box. According to the utility model, the calibration efficiency and flexibility are improved, manual direct contact with the radiation source is not needed in the whole process, and the operation safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of metrological calibration of ionizing radiation equipment, specifically a metrological calibration device for ionizing radiation equipment. Background Technology

[0002] In work environments with radiation, especially in fields such as nuclear energy and medical radiotherapy, it is necessary to monitor the radiation levels in the workplace using specialized instruments to ensure the safety of workers. To ensure the accuracy of the monitoring results, the measuring equipment needs to be calibrated regularly. First, a radiation source of appropriate type and energy is placed next to the radiation detection equipment that needs to be calibrated. Then, the radiation dose from the radiation source is measured using the radiation detection equipment. By comparing the measured value of the radiation detection equipment with the known radiation source dose, if there is a difference, the radiation detection equipment is calibrated.

[0003] A search revealed that CN117784211A discloses a dose calibration device for radiation measurement equipment, comprising a guide rail, a lifting mechanism, and a storage assembly. The guide rail is mounted on the ground, and a placement plate is slidably mounted on the guide rail for placing the radiation detection equipment. The lifting mechanism is located at one end of the guide rail, and a radiation box is located at the top of the lifting mechanism. The radiation box has a radiation hole on the side facing the guide rail, and a feeding box passes through the top of the radiation box. The feeding box has a feeding channel communicating with the radiation box, and a feeding assembly for quantitatively feeding radiation sources into the radiation box is located at the connection between the feeding box and the radiation box. The storage assembly is located on the side wall inside the radiation box and is used to receive the radiation sources fed by the feeding assembly. This device solves the problem in the prior art that when calibrating radiation detection equipment, only the same dose can be used for calibration, and multiple doses cannot be used for multiple calibrations.

[0004] The technical solution in the application document still has shortcomings: the adjustment of the radiation source dose is not flexible enough, and after the radiation source is calibrated, it is inconvenient to put it back into the delivery box, which increases the radiation risk to the operator and lacks safety protection measures. Utility Model Content

[0005] The purpose of this invention is to provide a metrology and calibration device for ionizing radiation equipment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a metrological calibration device for ionizing radiation equipment, comprising a metrological calibration box, a movable plate, a radiation box, a storage box, a sealing plate, an electromagnet, and a door panel. A placement platform is installed in the metrological calibration box, and a motor A is installed in the placement platform. A lead screw is installed at the power shaft end of motor A. Ball nuts are threaded onto two sections of threads in different directions on the lead screw, and a clamping plate is installed on the ball nuts. The radiation box is installed in the metrological calibration box, and a window is provided in the radiation box. The storage box is installed in the radiation box, and a placement slot is provided in the storage box. A radiation source block is fixedly installed in the placement slot. A motor B is installed on the storage box, and a sealing plate is installed at the power shaft end of motor B. One side of the sealing plate is attached to the bottom surface of the storage box.

[0007] Using the above technical solution, the ionizing radiation equipment to be calibrated is placed on the placement platform. Motor A drives the lead screw to rotate, causing the ball nuts threaded on two sections of the lead screw in different directions to move relative to each other. This allows the two ball nuts to move closer or further apart as the lead screw rotates, thereby clamping or releasing the ionizing radiation equipment using two clamping plates. This facilitates the fixation and calibration of the equipment. After closing the door, motor B drives the closing plate to rotate, exposing the radiation source blocks in the placement slots of the storage box. The storage box has five sets of placement slots, each containing a radiation source block. The rotation position of the closing plate is adjusted as needed to expose the corresponding number of radiation source blocks in the slots, enabling radiation calibration with the ionizing radiation equipment. This allows for flexible adjustment of the radiation source dose and facilitates quick replacement of radiation source blocks with different doses to meet the calibration requirements of different ionizing radiation equipment, improving calibration efficiency and flexibility. After calibration, there is no need to handle the radiation source, reducing the radiation risk for operators. The entire process eliminates the need for direct human contact with the radiation source, improving operational safety.

[0008] Preferably, the metrology calibration box has a door panel installed on it via hinges, a safety rod is installed on the door panel, the safety rod is slidably connected to a safety slot on the metrology calibration box, an electromagnet is installed on the metrology calibration box, a spring column is installed on the metrology calibration box, an iron block is installed at the other end of the spring column, and a plug is installed on the iron block, the plug engaging with a slot on the safety rod.

[0009] Using the above technical solution, when the door panel is closed, the safety rod slides along the safety groove until it reaches the designated position. The controller controls the electromagnet to be energized and de-energized. When the iron block is attracted by the electromagnet, it will move the insertion rod upward. When the electromagnet is de-energized, the iron block is pushed by the spring force of the spring column, which moves the insertion rod downward until the insertion rod is inserted into the slot on the safety rod, thus locking the door panel. This prevents the door panel from opening due to misoperation or external factors during calibration, improving operational safety. At the same time, the electromagnet and spring column can lock the door panel when the equipment is powered off, preventing the door panel from opening accidentally due to a sudden power outage, thus enhancing the safety of the equipment.

[0010] Preferably, the metrology calibration box is equipped with an electric telescopic rod B, one end of which is equipped with a connecting block. A movable plate is mounted on the connecting block, and an electric telescopic rod A is mounted on the movable plate. One end of the electric telescopic rod A is connected to the placement platform.

[0011] Using the above technical solution, the electric telescopic rod B can drive the connecting block and the moving plate to move horizontally, thereby adjusting the placement platform to move out of the metrology calibration box, making it convenient for staff to pick up and put down ionizing radiation equipment. The electric telescopic rod A can drive the placement platform to move vertically, facilitating the calibration of metrology instruments, thus improving work efficiency and ease of operation.

[0012] Preferably, the slider mounted on the movable plate is slidably connected to the track opened on the inner wall of the metrology calibration box.

[0013] By adopting the above technical solution, the cooperation between the slider and the track ensures the stability and accuracy of the moving plate during horizontal movement, prevents deviation or shaking during the movement, and guarantees the stability and accuracy of the ionizing radiation equipment placed on the moving plate during the calibration process.

[0014] Preferably, the electromagnet and the electrical equipment in the calibration device are connected to the controller wires on the metrology calibration box.

[0015] Using the above technical solution, staff can easily operate the electrical equipment in the calibration device, such as electromagnets, motors, and electric telescopic rods, through the controller, thus meeting different calibration needs.

[0016] Preferably, the metrology calibration box, door panel, radiation box, storage box, and sealing plate are made of lead.

[0017] By adopting the above technical solution, the use of lead can ensure that the internal radiation environment is effectively controlled. This material is chosen to effectively shield ionizing radiation and protect workers from radiation damage.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. Motor B drives the closed plate to rotate, exposing the radiation source blocks in the storage slots of the storage box. The storage box has five sets of slots, each containing a radiation source block. The rotation position of the closed plate is adjusted as needed to expose the corresponding number of radiation source blocks in the slots, thus enabling radiation calibration with ionizing radiation equipment. This allows for flexible adjustment of the radiation source dose and facilitates quick replacement of radiation source blocks with different doses to meet the calibration requirements of different ionizing radiation equipment, improving calibration efficiency and flexibility. After calibration, there is no need to handle the radiation source, reducing the radiation risk for operators. The entire process does not require direct human contact with the radiation source, improving operational safety.

[0020] 2. When the door panel is closed, the safety bar slides along the safety groove until it reaches the designated position. The controller controls the electromagnet to turn on and off. When the iron block is attracted by the electromagnet, it will move the insertion rod upward. When the electromagnet is de-energized, the iron block is pushed by the spring force of the spring column, which moves the insertion rod downward until the insertion rod is inserted into the slot on the safety bar, thus locking the door panel. This prevents the door panel from opening due to misoperation or external factors during calibration, improving operational safety. At the same time, the electromagnet and spring column can lock the door panel when the equipment is powered off, preventing the door panel from opening accidentally due to a sudden power outage, thus enhancing the safety of the equipment. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0023] Figure 3 This is a side view of the present invention.

[0024] Figure 4 This is a bottom view of the storage box structure of this utility model.

[0025] Figure 5 This is an enlarged schematic diagram of the safety interlocking structure of this utility model.

[0026] In the diagram: 1. Measurement calibration box; 2. Moving plate; 3. Electric telescopic rod A; 4. Placement platform; 5. Motor A; 6. Ball nut; 7. Clamping plate; 8. Lead screw; 9. Electric telescopic rod B; 10. Connecting block; 11. Radiation box; 12. Storage box; 13. Placement slot; 14. Radiation source block; 15. Motor B; 16. Enclosure plate; 17. Safety rod; 18. Electromagnet; 19. Insert rod; 20. Spring column; 21. Iron block; 22. Slot; 23. Safety slot; 24. Door panel; 25. Window. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Please see Figure 1-5 This utility model provides an embodiment of an ionizing radiation equipment calibration device, comprising a calibration box 1, a movable plate 2, a radiation box 11, a storage box 12, a sealing plate 16, an electromagnet 18, and a door panel 24. The calibration box 1 contains a placement platform 4, which contains a motor A5. A lead screw 8 is mounted on the power shaft end of the motor A5. Ball nuts 6 are threaded onto two sections of threads in different directions on the lead screw 8. A clamping plate 7 is mounted on the ball nuts 6. The calibration box 1 contains the radiation box 11, which has a window 25. The storage box 12 contains the radiation box 11, which has a placement groove 13. A radiation source block 14 is fixedly installed in the placement groove 13. A motor B15 is mounted on the storage box 12, and a sealing plate 16 is mounted on the power shaft end of the motor B15. One side of the sealing plate 16 is flush with the bottom surface of the storage box 12. The ionizing radiation equipment to be calibrated is placed on the placement platform 4. The motor A5 is started to rotate the lead screw 8, causing the ball nuts 6, threaded on two sections of the lead screw 8 with different directions of threads, to move relative to each other. This allows the two ball nuts 6 to move closer or further apart as the lead screw 8 rotates, thereby clamping or releasing the two clamping plates 7 to facilitate the fixation and calibration of the ionizing radiation equipment. After closing the door panel 24, the motor B15 rotates the sealing plate 16, exposing the radiation source block 14 in the placement slot 13 of the storage box 12. The storage box 12 is equipped with... Five placement slots 13 are provided, each containing a radiation source block 14. The rotation position of the sealing plate 16 can be adjusted as needed to expose the corresponding number of radiation source blocks 14 in the placement slots 13, thus enabling radiation calibration with ionizing radiation equipment. The dosage of the radiation source can be flexibly adjusted, and it is easy to quickly replace radiation source blocks 14 with different dosages to meet the calibration requirements of different ionizing radiation equipment, improving calibration efficiency and flexibility. After calibration, there is no need to handle the radiation source, reducing the radiation risk to operators. The entire process does not require direct manual contact with the radiation source, improving operational safety.

[0029] The calibration box 1 is fitted with a door panel 24 via hinges. A safety rod 17 is mounted on the door panel 24. The safety rod 17 is slidably connected to a safety groove 23 on the calibration box 1. An electromagnet 18 is mounted on the calibration box 1. A spring column 20 is mounted on the calibration box 1. An iron block 21 is mounted on the other end of the spring column 20. A plug rod 19 is mounted on the iron block 21. The plug rod 19 engages with a slot 22 on the safety rod 17. When the door panel 24 is closed, the safety bar 17 slides along the safety groove 23 until it reaches the designated position. The controller controls the electromagnet 18 to be energized and de-energized. When the iron block 21 is attracted by the electromagnet 18, it will drive the insertion rod 19 to move upward. When the electromagnet 18 is de-energized, the iron block 21 is pushed by the elastic force of the spring column 20, which drives the insertion rod 19 to move downward until the insertion rod 19 is inserted into the slot 22 on the safety bar 17, thereby locking the door panel 24. This prevents the door panel 24 from opening due to misoperation or external factors during the calibration process, improving the safety of operation. At the same time, the electromagnet 18, together with the spring column 20, can lock the door panel 24 when the equipment is powered off, preventing the door panel 24 from opening accidentally due to a sudden power outage, thus enhancing the safety of the equipment.

[0030] The calibration box 1 is equipped with an electric telescopic rod B9. A connecting block 10 is attached to one end of the electric telescopic rod B9, and a movable plate 2 is mounted on the connecting block 10. An electric telescopic rod A3 is mounted on the movable plate 2, and one end of the electric telescopic rod A3 is connected to the placement platform 4. The electric telescopic rod B9 can drive the connecting block 10 and the movable plate 2 to move horizontally, thereby adjusting the placement platform 4 to move outward from the calibration box 1, facilitating the handling of ionizing radiation equipment. The electric telescopic rod A3 can drive the placement platform 4 to move vertically, facilitating the calibration of measuring instruments and improving work efficiency and operational convenience.

[0031] The slider mounted on the movable plate 2 is slidably connected to the track opened on the inner wall of the metrology calibration box 1. The cooperation between the slider and the track ensures the stability and accuracy of the movable plate 2 when it moves horizontally, prevents deviation or shaking during the movement, and ensures the stability and accuracy of the ionizing radiation equipment placed on the movable plate 2 during the calibration process.

[0032] The electromagnet 18 and the electrical equipment in the calibration device are connected by wires to the controller on the metrology calibration box 1. Through the controller, operators can easily control the electrical equipment in the calibration device, such as the electromagnet 18, motor, and electric telescopic rod, thereby meeting different calibration needs.

[0033] The calibration box 1, door panel 24, radiation box 11, storage box 12, and sealing plate 16 are all made of lead. The use of lead ensures effective control of the internal radiation environment; this material is chosen to effectively shield ionizing radiation and protect workers from radiation damage.

[0034] The control module and radiation dose calibration device involved in this application are all existing mature technologies, and there are many products on the market. They are all general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or through routine use. The content of this application does not involve the improvement of software and methods, so the electronic component models and control system control flow will not be described in detail here.

[0035] Working principle: The ionizing radiation equipment to be calibrated is placed on the placement platform 4. The motor A5 drives the lead screw 8 to rotate, causing the ball nuts 6, which are threaded onto the two sections of the lead screw 8 with different directions of threads, to move relative to each other. Therefore, the two ball nuts 6 can move closer or further apart as the lead screw 8 rotates, thereby causing the two clamping plates 7 to clamp or release the ionizing radiation equipment, facilitating its fixation and calibration. After closing the door panel 24, the motor B15 drives the closing plate 16 to rotate, exposing the radiation source block 14 in the placement slot 13 of the storage box 12. Five placement slots 13 are provided, each containing a radiation source block 14. The rotation position of the sealing plate 16 can be adjusted as needed to expose the corresponding number of radiation source blocks 14 in the placement slots 13, thus enabling radiation calibration with ionizing radiation equipment. This allows for flexible adjustment of the radiation source dose and facilitates quick replacement of radiation source blocks 14 with different doses to meet the calibration requirements of different ionizing radiation equipment, improving calibration efficiency and flexibility. After calibration, there is no need to handle the radiation source, reducing the radiation risk for operators. The entire process does not require direct human contact with the radiation source, improving operational safety.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An ionizing radiation equipment metrological calibration device, comprising a metrological calibration box (1), a moving plate (2), a radiation box (11), a storage box (12), a closing plate (16), an electromagnet (18) and a door plate (24), characterized in that: The meter calibration box (1) is provided with a placing table (4), the motor A (5) is installed in the placing table (4), the power shaft end of the motor A (5) is provided with a screw rod (8), the screw rod (8) is provided with a ball nut (6) on two sections of threads in different directions, the ball nut (6) is provided with a clamping plate (7), the meter calibration box (1) is provided with a radiation box (11), the radiation box (11) is provided with a window (25), the radiation box (11) is provided with a storage box (12), the storage box (12) is provided with a placing groove (13), the storage box (12) is provided with a radiation source block (14), the storage box (12) is provided with a motor B (15), the power shaft end of the motor B (15) is provided with a closing plate (16), one side of the closing plate (16) is attached to the bottom surface of the storage box (12).

2. An apparatus for the metrological calibration of ionizing radiation devices according to claim 1, characterized in that: The meter calibration box (1) is provided with a door plate (24) through a hinge, the door plate (24) is provided with a safety rod (17), the safety rod (17) is slidably connected with a safety slot (23) formed in the meter calibration box (1), the meter calibration box (1) is provided with an electromagnet (18), the meter calibration box (1) is provided with a spring column (20), the other end of the spring column (20) is provided with an iron block (21), the iron block (21) is provided with a plug rod (19), the plug rod (19) is fitted with a slot (22) formed in the safety rod (17).

3. A dosimetry device for ionizing radiation apparatus metrology calibration according to claim 1, characterized in that: The meter calibration box (1) is provided with an electric telescopic rod B (9), one end of the electric telescopic rod B (9) is provided with a connecting block (10), the connecting block (10) is provided with a moving plate (2), the moving plate (2) is provided with an electric telescopic rod A (3), one end of the electric telescopic rod A (3) is connected with the placing table (4).

4. A dosimetry device for ionizing radiation apparatus metrology calibration according to claim 1, characterized in that: The sliding block provided on the moving plate (2) is slidably connected with a track formed on the inner wall of the meter calibration box (1).

5. A dosimetry device for ionizing radiation apparatus metrology calibration according to claim 1, characterized in that: The electromagnet (18) and the electrical equipment in the calibration device are connected with the controller wire of the meter calibration box (1).

6. A dosimetry device for ionizing radiation apparatus metrology calibration according to claim 1, characterized in that: The meter calibration box (1), the door plate (24), the radiation box (11), the storage box (12) and the closing plate (16) are made of lead.

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