Intelligent solid waste storage device for nuclear medicine department

Abstract

The utility model discloses an intelligent solid waste storage device for the nuclear medicine department, which relates to the technical field of radioactive waste storage and management for the nuclear medicine department and comprises an outer barrel with a radiation protection mechanism and an inner barrel for accommodating radioactive solid waste. A first supporting part is arranged at the bottom of the outer barrel and provided with a first tray, and a weighing sensor is arranged between the first supporting part and the first tray. An inner barrel is arranged on the first tray, a first cavity is defined by a concave part on the upper surface of the first tray and the bottom surface of the inner barrel, a second tray is arranged in the first cavity, and a radiation monitoring element and a temperature and humidity monitoring element are arranged on the second tray. By adopting the two-layer design of the inner barrel and the outer barrel and arranging the radiation monitoring element, the temperature and humidity monitoring element and the weighing sensor, radioactive rays can be effectively protected, nuclide can be identified, and radiation dose, storage weight, storage environment temperature and humidity can be detected in real time; and the related requirements of GBZ 120-2020 and HJ 1188-2021 on the collection, storage and treatment of the radioactive solid waste are met.

Description

Technical Field

[0001] This utility model relates to the field of radioactive waste storage and management technology in nuclear medicine, and in particular to an intelligent solid waste storage device for nuclear medicine. Background Technology

[0002] Based on relevant regulations and standards such as GBZ 120-2020 Requirements for Radiation Protection in Nuclear Medicine and HJ 1188-2021 Requirements for Radiation Protection and Safety in Nuclear Medicine, as well as the requirements of clinical practice in nuclear medicine, there is a need for a device that can effectively protect against radioactive radiation from radioactive waste. This device must also be able to identify nuclides and monitor in real time information such as the radiation dose, storage weight, and ambient temperature and humidity of the radioactive waste storage environment. However, existing information collection methods either require multiple manual steps or cannot be integrated into a single system. Therefore, there is an urgent need for a fully automated radioactive solid waste storage device that can monitor and record the required information. Utility Model Content

[0003] The purpose of this invention is to provide an intelligent solid waste storage device for nuclear medicine that can effectively protect against radioactive rays, identify nuclides, and detect the radiation dose, storage weight, and ambient temperature and humidity of radioactive waste in real time.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] An intelligent solid waste storage device for nuclear medicine includes an outer barrel with a radiation protection mechanism and an inner barrel for containing radioactive solid waste. A first support portion is provided at the bottom of the outer barrel, and a first tray is provided on the first support portion. A weighing sensor is provided between the first support portion and the first tray. The inner barrel is provided on the first tray, and a recess is provided on the upper surface of the first tray. The bottom surface of the inner barrel and the recess form a first cavity. A second tray is provided within the first cavity, and a radiation monitoring element and a temperature and humidity monitoring element are provided on the second tray.

[0006] In one exemplary embodiment, a first track is provided in the recess, and the bottom of the second tray is slidably connected to the first track.

[0007] In an exemplary embodiment, second tracks are provided on the left and right sides of the recess, and the bottom of the inner barrel is slidably connected to the second tracks.

[0008] In one exemplary embodiment, an information identification unit for identifying operator information is also provided.

[0009] In an exemplary embodiment, the outer barrel is provided with an inner barrel cavity and a feeding cavity. The feeding cavity is located at the upper part of the inner barrel cavity. The inner barrel cavity is used to accommodate the inner barrel. The feeding cavity is provided with a first feeding port, and the inner barrel cavity is provided with a second feeding port. The first feeding port and the second feeding port are arranged opposite to each other.

[0010] In an exemplary embodiment, both the first feeding port and the second feeding port are provided with an opening and closing mechanism and a driving mechanism for driving the opening and closing mechanism to open and close, and both the opening and closing mechanism and the driving mechanism are disposed within the feeding chamber.

[0011] In an exemplary embodiment, the opening and closing mechanism is an iris opening and closing mechanism.

[0012] In an exemplary embodiment, the iris opening and closing mechanism includes a rotating disk, a fixed disk, a blade, and a connecting rod. The output end of the driving mechanism is hinged to the rotating disk, one end of the connecting rod is hinged to the rotating disk, the other end of the connecting rod is hinged to one corner of the blade, the other corner of the blade is hinged to the fixed disk, and the fixed disk is fixedly connected to the cavity wall of the feeding chamber.

[0013] In an exemplary embodiment, the closing line of the iris opening and closing mechanism at the first feeding port is misaligned with the closing line of the iris opening and closing mechanism at the second feeding port.

[0014] In an exemplary embodiment, the misalignment angle between the closing line of the iris opening and closing mechanism at the first feeding port and the closing line of the iris opening and closing mechanism at the second feeding port is 20° to 50°.

[0015] The present invention achieves the following technical advantages over the prior art:

[0016] By using an outer container with radiation protection mechanisms and an inner container for containing radioactive solid waste, a two-layer design of inner and outer containers can effectively protect against radioactive radiation.

[0017] The outer barrel has a first support part at the bottom, a first tray on the first support part, and a weighing sensor between the first support part and the first tray. The inner barrel is on the first tray, and a recess is provided on the upper surface of the first tray. The bottom surface of the inner barrel and the recess surround to form a first cavity. A second tray is provided in the first cavity, and a radiation monitoring element and a temperature and humidity monitoring element are provided on the second tray.

[0018] By installing radiation monitoring elements and temperature and humidity monitoring elements on the second tray, the radiation monitoring elements can automatically identify the nuclides in the radioactive waste and detect the radiation dose in real time; the temperature and humidity monitoring elements can monitor the temperature and humidity of the storage environment of the radioactive waste in real time; and by installing a weighing sensor between the first support and the first tray, the stored weight of the radioactive waste can be automatically detected without manual weighing.

[0019] In summary, the intelligent solid waste storage device for nuclear medicine provided by this utility model can identify and collect information such as radionuclide identification, real-time detection of radioactive waste radiation dose, radioactive waste storage weight, and radioactive waste storage environment temperature and humidity as required by GBZ 120-2020 and HJ 1188-2021 without manual detection and query.

[0020] Other technical solutions disclosed in this utility model also have the following technical advantages:

[0021] By setting the interior of the outer barrel as an inner barrel cavity and a feeding cavity, with a first feeding port in the feeding cavity and a second feeding port in the inner barrel cavity, the first and second feeding ports are positioned opposite each other. Both the first and second feeding ports are equipped with an opening and closing mechanism and a driving mechanism for opening and closing the mechanism. When the iris opening and closing mechanism blades at the first feeding port open, the iris opening and closing mechanism blades at the second feeding port close; when the iris opening and closing mechanism blades at the first feeding port close, the iris opening and closing mechanism blades at the second feeding port open, which can effectively prevent the leakage of radioactive rays. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the structure of an intelligent solid waste storage device for nuclear medicine department disclosed in a specific embodiment of this utility model;

[0024] Figure 2 A schematic diagram of the front door and rear cover of an intelligent solid waste storage device for nuclear medicine, disclosed in a specific embodiment of this utility model, with the front door and rear cover in the open state.

[0025] Figure 3 A side view cross-sectional structural schematic diagram of an intelligent solid waste storage device for nuclear medicine department disclosed in a specific embodiment of this utility model;

[0026] Figure 4 A front view cross-sectional structural schematic diagram of an intelligent solid waste storage device for nuclear medicine, disclosed in a specific embodiment of this utility model;

[0027] Figure 5 A top-view cross-sectional structural schematic diagram of an intelligent solid waste storage device for nuclear medicine, disclosed in a specific embodiment of this utility model;

[0028] Figure 6 A top view cross-sectional structural diagram of the second tray of the intelligent solid waste storage device for nuclear medicine department disclosed in a specific embodiment of this utility model.

[0029] Figure 7 A schematic diagram of the iris opening and closing mechanism of an intelligent solid waste storage device for nuclear medicine, disclosed in a specific embodiment of this utility model;

[0030] Figure 8 A schematic diagram of the blade structure of the iris opening and closing mechanism of the intelligent solid waste storage device for nuclear medicine, disclosed in a specific embodiment of this utility model;

[0031] Figure 9 Rear view of an intelligent solid waste storage device for nuclear medicine, as disclosed in a specific embodiment of this utility model;

[0032] Figure 10 for Figure 2 Top view;

[0033] Figure 11 for Figure 2 Side view;

[0034] Figure 12 This is a structural diagram of an angled waterproof structure;

[0035] The components include: 1. Control circuit board; 2. Battery; 3. Switching power supply; 4. Power control switch; 5. Cable tray; 6. First track; 7. Radiation monitoring element; 8. Weighing sensor; 9. Temperature and humidity monitoring element; 10. Second tray; 11. Inner drum; 12. Second track; 13. Inner drum wall; 14. Pressing mechanism; 15. Inner drum handle; 16. Tray baffle; 17. Radiation protection mechanism; 18. Cable shielding mechanism; 19. First inlet; 20. Second inlet; 21. Opening and closing mechanism; 22. Blade; 3. Drive mechanism; 24. Hydraulic buffer damper; 25. Foot switch; 26. Mounting slot; 27. Front door; 28. Front door switch handle; 29. ​​Electromagnetic door lock; 30. Rear cover plate; 31. Heat dissipation hole; 32. Waterproof sealing strip; 33. Angled waterproof structure; 34. Rear cover plate door lock; 35. Main power cable hole; 36. Network cable hole; 37. Pulley mechanism; 38. Push-pull handle; 39. Display screen; 40. Information recognition unit; 41. Rotary disk; 42. First tray; 43. Fixed disk; 44. Connecting rod. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0037] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the implementation of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed herein. In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are merely for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Therefore, features specified with "first," "second," etc., may explicitly or implicitly include one or more of those features. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0038] It should also be noted that in the embodiments of this application, the same reference numerals are used to denote the same component or the same part.

[0039] The purpose of this invention is to provide an intelligent solid waste storage device for nuclear medicine that can effectively protect against radioactive rays, identify nuclides, and detect the radiation dose, storage weight, and ambient temperature and humidity of radioactive waste in real time.

[0040] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] Please refer to Figures 1 to 11This embodiment provides an intelligent solid waste storage device for nuclear medicine, including an outer container with a radiation protection mechanism 17 and an inner container 11 for containing radioactive solid waste. A first support portion is provided at the bottom of the outer container, and a first tray 42 is provided on the first support portion. A weighing sensor 8 is provided between the first support portion and the first tray 42. The inner container 11 is provided on the first tray 42, and a recess is provided on the upper surface of the first tray 42. The bottom surface of the inner container 11 and the recess form a first cavity, and a second tray 10 is provided within the first cavity. A radiation monitoring element 7 and a temperature and humidity monitoring element 9 are provided on the second tray 10. To prevent the connecting wires of the radiation monitoring element 7, the temperature and humidity monitoring element 9, and the weighing sensor 8 from being exposed, a tray baffle 16 is designed and installed on the front side of the first tray 42. In this embodiment, the temperature and humidity monitoring element 9 is a temperature and humidity monitor for real-time monitoring of temperature and humidity.

[0042] A first track 6 is provided in the recess of the first tray 42. The bottom of the second tray 10 is slidably connected to the first track 6, allowing the second tray 10 to be pulled out from under the inner bucket 11 for easy inspection of the operating status of the radiation monitoring element 7 and the temperature and humidity monitoring element 9. Second tracks 12 are provided on the left and right sides of the recess of the first tray 42. The bottom of the inner bucket 11 is slidably connected to the second tracks 12. Workers can pull out the inner bucket 11 using the inner bucket handle 15 for further processing of the collected solid waste. During use, a garbage bag is placed inside the inner bucket 11. To facilitate the securing of the garbage bag, a clamping mechanism 14 is provided at the top of the inner bucket 11.

[0043] To comply with the requirements of GBZ 120-2020 and HJ 1188-2021 that the ambient dose equivalent rate at 30cm from the outer surface of solid radioactive waste collection containers in nuclear medicine departments must be less than 2.5 μSv / h, this embodiment adopts a two-layer design. The outer container has a radiation protection mechanism 17, such as a lead shielding layer, which provides lead radiation protection and can be customized according to the actual application requirements of nuclear medicine departments. For example, 99mTc (Technetium 99) generally uses 3-10 mmPb (3-10 lead equivalents), and 18F (Fluorine 18) generally uses 10-30 mmPb (10-30 lead equivalents). The inner container 11 uses 304 steel and does not require additional lead shielding 17. The specific structures of the outer container radiation protection mechanism 17 and the inner container 11 are as follows. Figure 2 As shown.

[0044] To comply with the requirements of GBZ 120-2020 and HJ 1188-2021 regarding the types, storage dates and times of temporary storage of solid radioactive waste in nuclear medicine departments, as well as radiation dose monitoring, a radiation monitoring element 7 was installed. Under normal circumstances, a gamma-ray dose monitor can meet the real-time monitoring requirements of radiation dose rate for radiation monitoring element 7. Replacing it with a radiation dose rate monitor capable of nuclide identification will also provide nuclide identification functionality.

[0045] To comply with the requirements of GBZ 120-2020 and HJ 1188-2021 that the weight of each bag of radioactive waste should not exceed 20 kg, a weighing sensor 8 is installed. The weighing sensor 8 is located below the first tray 42. After calibration, the weight of the first tray 42, the first track 6, the second track 12, the radiation monitoring element 7, the temperature and humidity monitoring element 9, as well as the mounting mechanism and accessories of each component, can be removed to accurately measure the weight of the waste.

[0046] To comply with the requirement in HJ 1188-2021 that the storage and disposal of solid radioactive waste in nuclear medicine departments should be handled by designated personnel, an information identification unit 40 for identifying operator information is set up. Specifically, an NFC information reading device can be used to identify operator information and control operating permissions.

[0047] To meet the requirements of GBZ 120-2020 and HJ 1188-2021 that the ambient dose equivalent rate at 30cm from the outer surface of the solid radioactive waste collection container in nuclear medicine department must be less than 2.5μSv / h, a double-layer feeding port design is adopted. Through a sequential opening and closing operation process, internal radioactive radiation is prevented from escaping when the feeding port is opened.

[0048] Specifically, the outer barrel has an inner barrel cavity and a feeding cavity inside. The feeding cavity is located at the upper part of the inner barrel cavity, which is used to accommodate the inner barrel 11. The feeding cavity has a first feeding port 19, and the inner barrel cavity has a second feeding port 20. The first feeding port 19 and the second feeding port 20 are arranged opposite to each other. Both the first feeding port 19 and the second feeding port 20 are provided with an opening and closing mechanism and a driving mechanism 23 for driving the opening and closing mechanism. Both the opening and closing mechanism and the driving mechanism 23 are located inside the feeding cavity.

[0049] In this embodiment, the opening and closing mechanism adopts an iris opening and closing mechanism 21, which has lead protection capability, with the upper layer being 20mmPb and the lower layer being 10mmPb. The iris opening and closing mechanism 21 includes a rotating disk 41, a fixed disk 43, a blade 22, and a connecting rod 44. The output end of the drive mechanism 23 is hinged to the rotating disk 41, one end of the connecting rod 44 is hinged to the rotating disk 41, the other end of the connecting rod 44 is hinged to one corner of the blade 22, and the other corner of the blade 22 is hinged to the fixed disk 43. The fixed disk 43 is fixedly connected to the cavity wall of the feed chamber. The drive mechanism 23 drives the rotating disk 41 to rotate, the rotating disk 41 drives the connecting rod 44, and the connecting rod 44 drives the blade 22. The blade 22 rotates around the hinge point with the fixed disk 43 as the center, thereby realizing the opening and closing of the iris opening and closing mechanism 21.

[0050] To facilitate the control of the opening and closing mechanism, the drive mechanism 23 uses a motor and is equipped with a hydraulic buffer damper 24 to reduce the risk of collision deformation of the opening and closing mechanism.

[0051] To prevent radiation leakage, the closing line of the iris opening and closing mechanism 21 at the first feeding port 19 is offset from the closing line of the iris opening and closing mechanism 21 at the second feeding port 20, with an offset angle of 20° to 50°, preferably 35°.

[0052] When the blade 22 of the iris opening and closing mechanism 21 at the first feeding port 19 opens, the iris opening and closing mechanism 21 at the second feeding port 20 closes; when the iris opening and closing mechanism 21 at the first feeding port 19 closes, the iris opening and closing mechanism 21 at the second feeding port 20 opens. Even when the iris opening and closing mechanisms 21 at the first feeding port 19 and the second feeding port 20 are not completely closed, the 35° misalignment angle can cross-block the gap, thereby preventing the leakage of radioactive rays.

[0053] Furthermore, the outer casing is provided with a shell, on which a switch for controlling the drive mechanism 23 is installed. For ease of operation by staff, this application uses a foot switch 25, which controls the opening and closing of the mechanism via electronic signals. During actual installation of the radioactive waste storage device, the site location needs to be considered, and the foot switch 25 should be installed in a position convenient for personnel in the relevant department. To facilitate adjustment of the foot switch 25's installation position, mounting slots 26 for the foot switch 25 are provided on the front and left / right sides of the bottom of the shell. The foot switch 25 is detachably installed in the mounting slot 26 at a suitable position via a snap-fit ​​structure.

[0054] The housing includes a front door 27 and a rear cover 30. The front door 27 is equipped with a front door handle 28 and an electromagnetic door lock 29 is installed at the bottom of the front door 27.

[0055] The rear cover plate 30 is provided with heat dissipation holes 31 to meet the heat dissipation requirements of the circuit board.

[0056] To meet the waterproofing requirements of the circuit board and wiring, a waterproof sealing strip 32 is designed and installed on the back cover 30. The back cover closure structure is an angled waterproof structure 33, which connects and fits with the waterproof sealing strip when the back cover is closed, ensuring a waterproof seal. The angle can be set according to actual needs, preferably 45° to 60°. The specific structure of the angled waterproof structure 33 is as follows... Figure 12 As shown.

[0057] To facilitate movement and fixation, a pulley mechanism 37 with locking function was designed.

[0058] To facilitate operator movement, push-pull handles 38 are designed on the front and left and right sides of the upper part of the casing.

[0059] A key lock is designed on the rear cover 30 to prevent unauthorized personnel from opening the rear cover 30 and causing damage to the internal circuitry.

[0060] To meet the requirements of GBZ 120-2020 and HJ 1188-2021 that the ambient dose equivalent rate at 30cm from the outer surface of the solid radioactive waste collection container in the nuclear medicine department must be less than 2.5μSv / h, an outer container wiring shielding mechanism 18 was installed, and lead block shielding material was used for the wiring shielding.

[0061] An opening for wiring is provided below the radiation protection mechanism 17 of the outer barrel. A U-shaped wiring shielding mechanism 18 covers the opening and provides a wiring channel, through which signal lines from the internal space are led out via the reserved opening above.

[0062] To comply with the requirement in HJ 1188-2021 to record in detail the nuclide name, weight, waste generation start date, responsible person, release time and monitoring results of radioactive waste, a control circuit board 1 was specially designed and installed to realize intelligent and information functions.

[0063] The logic control and information processing program embedded in the control circuit board 1 includes:

[0064] 1. Motor drive control of the iris opening and closing mechanism 21 at the first feeding port 19 and the second feeding port 20;

[0065] 2. NFC information recognition;

[0066] 3. Electromagnetic door lock 29 opening and closing control logic;

[0067] 4. Collection of environmental temperature and humidity information;

[0068] 5. Radiation dose rate information acquisition, nuclide type identification, and decay time calculation;

[0069] 6. Waste weighing information collection;

[0070] 7. Collect operator information and record operation details;

[0071] 8. Equipment operating status collection and recording;

[0072] 9. Network interconnection and information exchange, supporting wired Ethernet and WiFi communication functions.

[0073] To ensure the electrical control functions can operate even during power outages, a power supply system was designed and installed. This system includes a battery 2 and a switching power supply 3. The switching power supply 3 primarily converts 220V AC voltage to a low-voltage DC output of 24V, 12V, or 5V. The installation location is as follows: Figure 9 As shown.

[0074] To facilitate users in understanding information such as the weight of radioactive waste, radiation dose, type of nuclide, storage date and time, release time, ambient temperature and humidity, and operational procedures, a display screen 39 was installed. The display screen 39 is a touch screen.

[0075] A power control switch 4 was installed to control the power supply to the electrified equipment.

[0076] The bottom of the casing has a main power cable routing hole 35 and a network cable routing hole 36. A cable management bracket 5 is located on the rear of the casing for easy routing of network and power cables. The main power cable routing hole 35 is used for power cable routing, connecting to a power socket externally and a switching power supply 3 internally. The network cable routing hole 36 is used for network cable routing, connecting to an RJ45 network port externally and an external network port on the circuit board internally.

[0077] The initial preparation process for this embodiment is as follows:

[0078] 1. Select a storage location for the equipment, ensuring that there is a 220V three-phase AC power outlet within the range of the equipment's power supply line;

[0079] 2. Select a suitable operating position for the foot switch 25 and install the foot switch 25;

[0080] 3. Open the back cover 30 and connect the power cord and network cable respectively;

[0081] 4. Plug in the power and turn on the power control switch 4 to power on the device. Confirm that the device has completed power-on initialization through the display screen 39.

[0082] 5. The engineer connects the equipment to the working environment network and completes tasks such as equipment network configuration, personnel permission configuration, system debugging and calibration;

[0083] 6. Close and lock the rear cover 30;

[0084] 7. Return the equipment to its storage location and lock the pulley mechanism 37.

[0085] The general usage process of this embodiment is as follows:

[0086] I. Nuclide type setting function:

[0087] 1. Device administrator local settings:

[0088] 1) Operator permissions are identified by swiping a card using an NFC device; only personnel with system setting permissions can perform this operation.

[0089] 2) After successful identification, the operator sets the nuclide type via the touchscreen on top of the device;

[0090] 2. The device administrator sets it up remotely via computer.

[0091] II. Waste disposal procedure:

[0092] 1. Identify operator permissions by swiping a card using an NFC device;

[0093] 2. After successful identification, step on the foot switch 25 to open the iris opening and closing mechanism 21 at the first feeding port 19. At this time, the iris opening and closing mechanism 21 at the second feeding port 20 is in the closed state.

[0094] 3. Dispose of the waste into the first inlet 19;

[0095] 4. Release the foot switch 25 to close the iris opening and closing mechanism 21 at the first feeding port 19 and open the iris opening and closing mechanism 21 at the second feeding port 20, so that the waste will automatically fall into the inner bucket 11.

[0096] 5. The system controls the iris opening and closing mechanism 21 at the second feeding port 20 to automatically close.

[0097] Note: The time interval for repeated feeding is 6 to 7 seconds. During this period, the system will not respond to feeding control commands.

[0098] III. Operating procedures for operators to remove waste:

[0099] 1. Control access by swiping cards with NFC devices to identify operators;

[0100] 2. After successful identification, the system opens the electromagnetic door lock 29 via a program and simultaneously starts the operation countdown;

[0101] 3. The operator rotates the front door handle 28 to unlock the physical locking device and pulls open the front door 27;

[0102] 4. The operator pulls out the inner bucket 11 completely and removes the garbage bag clamping mechanism 14 on the upper edge of the inner bucket 11;

[0103] 5. The operator removes the garbage bag containing waste, replaces it with a new garbage bag, and then installs the garbage bag clamping mechanism 14;

[0104] 6. The operator pushes the inner tub 11 back completely, closes the front door 27, and then rotates the front door handle 28 in the opposite direction to lock the physical locking device;

[0105] 7. The operator swipes a card using an NFC device, and the system locks the electromagnetic door lock 29 after recognition. If the operator forgets to swipe the card, the system will trigger an alarm and report the alarm information to the IoT platform.

[0106] IV. The system automatically reports system information when powered on.

[0107] 1. Radioactive waste attribute information: nuclide type, radiation dose rate, weight, half-life, storage time, etc.;

[0108] 2. Operation Log: Operator, operation type (delivery, retrieval), operation date and time, etc.;

[0109] 3. Equipment status information: system status information, power on / off status, battery level, abnormal alarms, etc.

[0110] The intelligent solid waste storage device for nuclear medicine departments provided in this embodiment is generally applicable to the controlled areas of nuclear medicine departments as specified in GB18871-2002, such as injection rooms, examination rooms, drug dispensing rooms, and radioactive solid waste storage rooms. This embodiment is designed to meet the above standards and the daily operational management needs of nuclear medicine departments. It not only meets the radiation protection safety standards for the department's controlled areas but also automatically identifies nuclides, monitors the radiation dose rate and weight of radioactive waste in real time, calculates the decay time of radioactive waste, and possesses intelligent functions such as automatic recording of equipment operation, collection of equipment operating status information, and alarm control. Most importantly, it can serve as a nuclear medicine department radiation protection IoT terminal device, connecting to the IoT networks of hospitals and regulatory agencies to form an intelligent nuclear medicine department radioactive waste monitoring and management system.

[0111] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0112] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then, unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured using a casting process) (except where it is obviously impossible to use an integral forming process).

[0113] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0114] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0115] Any adaptive changes made according to actual needs are within the protection scope of this utility model.

[0116] It should be noted that, for those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model 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 utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0117] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An intelligent solid waste storage device for nuclear medicine, characterized in that: The device includes an outer container with a radiation protection mechanism and an inner container for containing radioactive solid waste. The bottom of the outer container is provided with a first support part, and a first tray is provided on the first support part. A weighing sensor is provided between the first support part and the first tray. The inner container is provided on the first tray, and a recess is provided on the upper surface of the first tray. The bottom surface of the inner container and the recess form a first cavity. A second tray is provided in the first cavity, and a radiation monitoring element and a temperature and humidity monitoring element are provided on the second tray.

2. The intelligent solid waste storage device for nuclear medicine departments according to claim 1, characterized in that: A first track is provided in the recessed portion, and the bottom of the second tray is slidably connected to the first track.

3. The intelligent solid waste storage device for nuclear medicine departments according to claim 1, characterized in that: The recessed portion is provided with second tracks on the left and right sides, and the bottom of the inner barrel is slidably connected to the second tracks.

4. The intelligent solid waste storage device for nuclear medicine departments according to claim 1, characterized in that: It also includes an information identification unit for identifying operator information.

5. The intelligent solid waste storage device for nuclear medicine departments according to any one of claims 1-4, characterized in that: The outer barrel has an inner barrel cavity and a feeding cavity inside. The feeding cavity is located at the upper part of the inner barrel cavity. The inner barrel cavity is used to accommodate the inner barrel. The feeding cavity is provided with a first feeding port, and the inner barrel cavity is provided with a second feeding port. The first feeding port and the second feeding port are arranged opposite to each other.

6. The intelligent solid waste storage device for nuclear medicine departments according to claim 5, characterized in that: Both the first and second feeding ports are provided with an opening and closing mechanism and a driving mechanism for opening and closing the opening and closing mechanism. Both the opening and closing mechanism and the driving mechanism are located inside the feeding chamber.

7. The intelligent solid waste storage device for nuclear medicine departments according to claim 6, characterized in that: The opening and closing mechanism is an iris opening and closing mechanism.

8. The intelligent solid waste storage device for nuclear medicine department according to claim 7, characterized in that: The iris opening and closing mechanism includes a rotating disk, a fixed disk, a blade, and a connecting rod. The output end of the driving mechanism is hinged to the rotating disk. One end of the connecting rod is hinged to the rotating disk, and the other end of the connecting rod is hinged to one corner of the blade. The other corner of the blade is hinged to the fixed disk, and the fixed disk is fixedly connected to the cavity wall of the feeding chamber.

9. The intelligent solid waste storage device for nuclear medicine departments according to claim 7, characterized in that: The closing line of the iris opening and closing mechanism at the first feeding port is misaligned with the closing line of the iris opening and closing mechanism at the second feeding port.

10. The intelligent solid waste storage device for nuclear medicine departments according to claim 9, characterized in that: The misalignment angle between the closing line of the iris opening and closing mechanism at the first feeding port and the closing line of the iris opening and closing mechanism at the second feeding port is 20° to 50°.

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