An integrated take-and-deliver radioactive source control device

Abstract

The embodiment of the application relates to the technical field of nuclear radiation detection, and discloses a radiation source control device integrated with taking and sending, which comprises a radiation source, a shielding body for shielding the radiation of the radiation source, a taking and sending push-pull assembly comprising a deformable guide piece, a push-pull piece and a push-pull driving device connected in sequence, a radiation source driving assembly comprising a flexible traction piece and a radiation source driving device, the flexible traction piece being connected with the radiation source at one end and connected with the radiation source driving device at the other end, and a guide structure being provided with at least two guide channels with partially overlapped paths, the two guide channels being respectively provided for the flexible traction piece and the push-pull piece to guide the moving tracks of the two; wherein the radiation source driving device can drive the flexible traction piece to move along the corresponding guide channel, and drive the radiation source to move to a shielding position inside the shielding body or an irradiation position outside the shielding body; and the push-pull driving device can drive the push-pull piece to move along the corresponding guide channel, and drive the deformable guide piece to move to take and send the irradiation object.

Description

Technical Field

[0001] This application relates to the field of nuclear radiation detection technology, and in particular to an integrated radioactive source control device for pickup and delivery. Background Technology

[0002] A radioactive source is a general term for a radiation source made of radioactive material. Currently, radiation application technologies based on radioactive sources have wide applications in fields such as industry, agriculture, medicine, resources, environment, military, and scientific research.

[0003] Radiation emitted from a radioactive source possesses energy that can damage cells and tissues, thus harming the human body. Exposure to large amounts of radiation can cause symptoms such as dizziness, weakness, loss of appetite, nausea, and vomiting; in severe cases, it can lead to organ damage and even death. However, exposure to small amounts of radiation generally does not cause discomfort or harm. Therefore, radioactive sources must be strictly controlled and managed.

[0004] Currently, the control devices for radioactive sources are generally large in size and have limited functions. The control methods and movement paths of radioactive sources are relatively rigid, making them difficult to use effectively in precision or complex equipment. However, under normal circumstances, radioactive source control devices are not used alone. In most cases, they need to be used in conjunction with other additional push-pull devices. In terms of the space occupied by internal components, 1+1 is usually much greater than 2, and configuring additional push-pull devices will undoubtedly occupy more internal space. Utility Model Content

[0005] One object of this application is to provide a radiation source control device with integrated pickup and delivery functions, which at least solves the above-mentioned problems.

[0006] To achieve the above objectives, some embodiments of this application provide a radiation source control device with integrated pickup and delivery functions, including a radiation source; and further including:

[0007] A shielding enclosure is used to shield radiation from a radioactive source.

[0008] A push-pull assembly for picking up and delivering, comprising a deformable guide, a push-pull component, and a push-pull drive device connected in sequence;

[0009] A radiation source driving assembly includes a flexible traction member and a radiation source driving device, wherein one end of the flexible traction member is connected to a radiation source and the other end is connected to the radiation source driving device.

[0010] The guide structure has at least two guide channels with partially overlapping paths. The two guide channels are respectively for the flexible traction component and the push-pull component to pass through, so as to guide the movement trajectory of the two.

[0011] Among them, the radiation source driving device can drive the flexible traction component to move along the corresponding guide channel, thereby moving the radiation source to the shielding position inside the shielding body or the irradiation position outside the shielding body; the push-pull driving device can drive the push-pull component to move along the corresponding guide channel, thereby moving the deformable guide component to pick up and deliver the item to be irradiated.

[0012] Compared with related technologies, the solution provided in this application integrates the radiation source control (moving to the shielding / irradiation position) and the irradiation item retrieval and delivery functions into the same device, eliminating the need for an additional independent push-pull device. This breaks away from the traditional separate design of "radiation source control device + additional push-pull device", significantly reducing the internal space occupied by the equipment and solving the problem of "1+1 is much greater than 2" in the space occupied by traditional equipment, thus providing a structural basis for the miniaturization and lightweighting of the equipment.

[0013] The two guide channels of the guide structure constrain the trajectory of the flexible traction component and the push-pull component respectively, so as to avoid the two from deviating or interfering during the movement, ensuring that the radiation source can be accurately moved to the shielding position or irradiation position, while ensuring that the deformable guide component can stably pick up and deliver the irradiated items, thus improving the accuracy and reliability of the device operation.

[0014] The shielding body effectively shields the radiation from the radioactive source. When the radioactive source is inside the shielding body, it can block radiation leakage and protect operators and the surrounding environment from radiation damage. Irradiation operations are only carried out when the radioactive source is moved to an irradiation location outside the shielding body, so as to achieve controllable management of radiation risks and meet the industry requirements for strict control and management of radioactive sources. Attached Figure Description

[0015] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0016] Figure 1 This is a schematic diagram of the structure of the radiation source control device provided in the embodiments of this disclosure;

[0017] Figure 2 This is a schematic diagram of the structure of the radiation source control device provided in the embodiments of this disclosure from another perspective;

[0018] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle;

[0019] Figure 4 This is a schematic diagram of the structure of the radiation source control device provided in the embodiments of this disclosure from another perspective;

[0020] Figure 5 yes Figure 4A magnified view of a portion of point B in the middle;

[0021] Figure 6 This is a schematic diagram of the structure of the radiation source control device provided in the embodiments of this disclosure from another perspective;

[0022] Figure 7 yes Figure 6 A magnified view of a portion of point C.

[0023] Figure label:

[0024] 10: Radioactive source;

[0025] 20: Shielding body;

[0026] 301: Deformable guide component; 3011: Adapter component; 302: Push-pull component; 3021: Connecting part; 3022: Clearance groove; 303: Push-pull drive device; 3031: Second power unit; 3032: Second transmission unit; 3033: Second sliding unit; 3033a: Second linear bearing; 3034: Second guide shaft; 3035: Second sensing element; 3036: Third sensing switch; 3037: Fourth sensing switch;

[0027] 401: Flexible traction component; 402: Radiation source driving device; 4021: First power unit; 4022: First transmission unit; 4023: First sliding unit; 4023a: First linear bearing; 4024: First guide shaft; 4025: First sensing element; 4026: First inductive switch; 4027: Second inductive switch;

[0028] 50: Manifold guide sleeve; 501: First channel; 502: Second channel;

[0029] 60: Limiting structure; 601: Boss;

[0030] 70: Elastic component;

[0031] 801: First support; 802: Second support; 803: Third support; 804: Base;

[0032] 90: Ball bearing. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0035] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0036] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0037] Unless otherwise stated, the term "multiple" means two or more.

[0038] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0039] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0040] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0041] Combination Figures 1 to 7As shown in the figure, an embodiment of this disclosure provides a radiation source control device with integrated pickup and delivery functions, including a radiation source 10; further comprising: a shielding body 20 for shielding the radiation from the radiation source 10; a pickup and delivery push-pull assembly, including a deformable guide 301, a push-pull member 302, and a push-pull drive device 303 connected in sequence; a radiation source drive assembly, including a flexible traction member 401 and a radiation source drive device 402, one end of the flexible traction member 401 being connected to the radiation source 10 and the other end being connected to the radiation source drive device 402; and a guide structure, having provided up to The system has two partially overlapping guide channels, through which the flexible traction member 401 and the push-pull member 302 pass respectively to guide their movement trajectories. The radiation source driving device 402 can drive the flexible traction member 401 to move along the corresponding guide channel, thereby moving the radiation source 10 to the shielding position inside the shielding body 20 or the irradiation position outside the shielding body 20. The push-pull driving device 303 can drive the push-pull member 302 to move along the corresponding guide channel, thereby moving the deformable guide member 301 to pick up and deliver the item to be irradiated.

[0042] The radiation source control device with integrated pickup and delivery function provided in this embodiment integrates radiation source control (moving to the shielding / irradiation position) and the pickup and delivery function of the item to be irradiated into the same device. It does not require an additional independent push-pull device, breaking the traditional separate design of "radiation source control device + additional push-pull device", greatly reducing the internal space occupied by the equipment, solving the problem of "1+1 is much greater than 2" in the space occupied by traditional equipment, and providing a structural basis for the miniaturization and lightweighting of the equipment.

[0043] The two guide channels of the guide structure constrain the trajectory of the flexible traction component 401 and the push-pull component 302 respectively, so as to avoid the two from deviating or interfering during the movement, ensuring that the radiation source 10 can be accurately moved to the shielding position or irradiation position, while ensuring that the deformable guide component 301 can stably pick up and deliver the items to be irradiated, thereby improving the accuracy and reliability of the device operation.

[0044] The shield 20 effectively shields the radiation from the radiation source 10. When the radiation source 10 is inside the shield 20, it can block radiation leakage and protect the operators and the surrounding environment from radiation damage. Irradiation operations are only carried out when the radiation source 10 is moved to an irradiation position outside the shield 20, so as to achieve controllable management of radiation risks and meet the industry requirements for strict control and management of the radiation source 10.

[0045] The radiation source control device provided in this embodiment does not require additional independent radiation source control devices and delivery devices. The integrated design achieves dual drive modes while maintaining a compact structure. Furthermore, the operating mode can be selected according to needs, avoiding energy waste caused by starting unrelated power units, which is in line with the development trend of equipment miniaturization and energy saving.

[0046] Optionally, the deformable guide 301 can be bent in any direction and can return to a straight shape when unrestrained and can maintain a straight shape when subjected to only linear forces.

[0047] The deformable guide 301 can be bent in any direction, adapting to instruments and equipment with complex spatial layouts, meeting the needs of picking up and delivering items at different distances, directions, and angles, and solving the problem of rigid movement paths in traditional devices. At the same time, it can return to a straight line when unrestrained and maintain a straight line when subjected to only linear forces, ensuring that the items to be irradiated are stably supported during the picking and delivery process and preventing items from shifting or falling due to deformation of the guide.

[0048] Optionally, the deformable guide 301 is a shape memory hose, and the end of the push-pull member 302 away from the push-pull drive device 303 is provided with a connecting part 3021 adapted to the shape memory hose. The inner wall of the connecting part 3021 is provided with chamfers and a constriction, so that the internal channel of the push-pull member 302 and the internal channel of the shape memory hose are spliced ​​together to form a smooth transition through channel.

[0049] The shape memory hose is used as the deformable guide 301, which has both deformation flexibility and reset stability. The chamfer and constriction design of the connecting part 3021 of the push-pull member 302 makes the push-pull member 302 and the internal channel of the shape memory hose smoothly transition to form a through channel, which avoids the radiation source 10 (or its traction member 401 and elastic member 70) from getting stuck due to steps and corners when it is transported in the channel, thus improving the smoothness of picking and delivering.

[0050] Optionally, the end of the shape memory hose away from the push-pull member 302 is connected to a hollow adapter 3011. The end of the adapter 3011 away from the shape memory hose is provided with a carrier mounting part. The carrier mounting part can be detachably connected to a sample tray or mechanical claw to carry the item to be irradiated.

[0051] The carrier mounting section of the adapter 3011 can be detachably connected to a sample tray or mechanical claw, allowing for flexible carrier replacement according to the shape and size of the item to be irradiated. This adapts to the handling needs of different types of items, eliminating the need to design separate handling structures for specific items and significantly improving the versatility and applicability of the device.

[0052] Optionally, the end of the adapter 3011 that connects to the carrier mounting part can be a flat structure. This helps to increase the contact area with carriers such as sample trays and mechanical grippers, making the carrier installation more stable, reducing the risk of the carrier shaking or falling off during handling, and further ensuring the safety of handling items to be irradiated.

[0053] Optionally, the push-pull component 302, the deformable guide component 301, and the adapter component 3011 can be an integrated structure.

[0054] The push-pull component 302, deformable guide component 301, and adapter component 3011 are designed as an integrated structure, reducing the number of connection points between the three components and avoiding the risk of failure due to loose connections or wear; at the same time, it simplifies the assembly process and reduces assembly errors.

[0055] Optionally, the push-pull member 302 is a hollow rod structure so that the flexible traction member 401 can pass through.

[0056] Optionally, the guide structure is a manifold guide sleeve 50, and the two guide channels of the manifold guide sleeve 50 include: a first channel 501 for the flexible traction member 401 to pass through; and a second channel 502 for the push-pull member 302 and the deformable guide member 301 to pass through; wherein, the first channel 501 is a curved bypass channel and the second channel 502 is a straight main channel.

[0057] The first channel 501 (curved bypass) of the manifold guide sleeve 50 is for the flexible traction component 401 to pass through, and the second channel 502 (straight main channel) is for the push-pull component 302 and the deformable guide component 301 to pass through. By distinguishing the channel shape and function, the flexible traction component and the push-pull component can operate independently in a limited space, completely avoiding interference between the two during movement and ensuring the stability of the device operation.

[0058] Optionally, the cross-sectional areas of the first channel 501 and the second channel 502 of the manifold guide sleeve 50 are equal, or the cross-sectional area of ​​the second channel 502 is greater than the cross-sectional area of ​​the first channel 501.

[0059] The cross-sectional area of ​​the second channel 502 is larger than that of the first channel 501 (or the two are equal). The channel specifications can be flexibly designed according to the actual size of the push-pull component 302, the deformable guide component 301 and the flexible traction component 401. While meeting the requirements for component installation, the space waste caused by excessive channel size is avoided, and the overall compactness of the device structure is further optimized.

[0060] Optionally, the end of the second channel 502 of the manifold guide sleeve 50 near the radiation source 10 passes through the shield 20 and is bent along a preset path inside the shield 20 and extends to the outside of the shield 20, so that components such as the push-pull member 302 and the deformable guide member 301 located in the second channel 502 can also be protected by the radiation from the shield 20, preventing radiation from leaking out through the gap of the second channel 502 when the radiation source 10 is in the irradiation position, and further improving the radiation safety protection level of the device.

[0061] Optionally, the manifold guide sleeve 50, which is installed inside the shield 20, can be an integrated structure with the shield 20. This helps to eliminate the installation gap between the guide sleeve and the shield 20, preventing radiation from leaking out of the gap. At the same time, it enhances the connection strength between the two, making the guide structure and the shield 20 form a stable whole, and improving the device's resistance to vibration and impact.

[0062] Optionally, it also includes: a limiting structure 60 disposed on the manifold guide sleeve 50; an elastic element 70 sleeved on the flexible traction element 401, with one end of the elastic element 70 abutting against the radiation source 10 and the other end abutting against the limiting structure 60; when the radiation source 10 is located in the shielding position inside the shield 20, the elastic element 70 is in a compressed state and accumulates elastic potential energy; when the radiation source 10 moves to the irradiation position outside the shield 20, the elastic element 70 releases elastic potential energy to apply a reverse pulling force to assist the flexible traction element 401 in maintaining a straight state, thereby ensuring that the radiation source 10 moves accurately to the irradiation position along the preset trajectory, and avoiding the radiation source 10 from shifting and failing to irradiate normally due to the bending of the flexible traction element 401.

[0063] Optionally, the elastic element 70 can be a spring. Using a spring for the elastic element 70 is advantageous because springs are mature and widely used components with low procurement costs and are readily available. Furthermore, springs have a simple structure, low failure rate, and are convenient for subsequent maintenance and replacement, thus reducing the production and maintenance costs of the device.

[0064] Optionally, the limiting structure 60 can be located in the second channel 502 or the first channel 501 of the manifold guide sleeve 50. In practical applications, the installation position of the limiting structure 60 can be flexibly adjusted according to the internal space of the manifold guide sleeve 50 and the positional relationship between the flexible traction member 401 and the push-pull member 302, without being restricted by a fixed channel, thus improving the flexibility and adaptability of the internal structural design of the device.

[0065] Optionally, the push-pull component 302 is provided with a clearance groove 3022 extending along its length. At least part of the limiting structure 60 extends into the clearance groove 3022, and the length of the clearance groove 3022 is greater than or equal to the maximum travel of the push-pull component 302, so as to prevent interference between the push-pull component 302 and the limiting structure 60 during movement. That is, the limiting structure 60 extends into the clearance groove 3022 without obstructing the movement of the push-pull component 302, completely avoiding collisions or jamming between the two during the picking and pulling process, and ensuring the stable realization of the picking and pulling component function.

[0066] Optionally, the limiting structure 60 can be a stop block with a through opening for the manifold guide sleeve 50, the push-pull member 302 and the wire rope to pass through; wherein, a boss 601 protrudes inward from the inner wall of the through opening, the boss 601 extends into the relief groove 3022 of the push-pull member 302 and abuts against the elastic member 70.

[0067] After the flexible traction member 401 passes through the through-hole inside the stop block, it is led out from the relief groove 3022 of the push-pull member 302. Then, the flexible traction member 401 passes through the first channel 501 of the manifold guide sleeve 50 and finally connects to the radiation source drive assembly.

[0068] In some alternative embodiments, the size of the radiation source 10 is larger than the end face size of the elastic member 70, thereby limiting the radiation source 10 against the elastic member 70. The larger size of the radiation source 10 allows it to directly and stably abut against the elastic member 70, achieving limiting without additional components. This prevents the radiation source 10 from detaching from or shifting relative to the elastic member 70 during movement, ensuring that the reverse tension of the elastic member 70 stably acts on the radiation source 10.

[0069] In some alternative embodiments, a stop is provided at the connection between the radiation source 10 and the flexible traction member 401. The stop is located outside the elastic member 70 and abuts against the end of the elastic member 70 to limit its movement, thereby ensuring that the radiation source 10 is located outside the elastic member 70. By abutting against the end of the elastic member 70, the radiation source 10 is prevented from entering the interior of the elastic member 70, thus avoiding structural interference and ensuring that both functions can be performed normally.

[0070] Optionally, both the radiation source driving device 402 and the push-pull driving device 303 include a power unit, a transmission unit, and a sliding unit; the power unit drives the sliding unit to slide through the transmission unit; wherein, the sliding unit of the radiation source driving device 402 is fixedly connected to the end of the flexible traction member 401 away from the radiation source 10; the sliding unit of the push-pull driving device 303 is fixedly connected to the end of the push-pull member 302 away from the deformable guide member 301.

[0071] Both the radiation source driving device 402 and the push-pull driving device 303 adopt a standardized structure of power unit-transmission unit-sliding unit. The power unit stably drives the sliding unit through the transmission unit, thereby driving the flexible traction component 401 and the push-pull component 302 to move respectively, ensuring efficient and stable power transmission.

[0072] Optionally, the power unit is any one of the following: a lead screw stepper motor assembly, a motor-lead screw assembly, an electric cylinder, a pneumatic cylinder, a gear and rack transmission assembly, a worm gear transmission assembly, or a sprocket transmission assembly.

[0073] The power unit can be selected from various types such as lead screw stepper motor assembly, motor-lead screw assembly, electric cylinder, etc., and can be flexibly selected according to the power requirements, operating accuracy requirements, cost budget, etc., to adapt to different application scenarios in industrial, medical, scientific research and other fields, greatly improving the applicability of the device.

[0074] Taking a lead screw stepper motor assembly as an example, the output shaft of the power unit is a lead screw structure. This provides a benchmark for the design and assembly of the transmission unit (such as a transmission nut).

[0075] Optionally, the transmission unit includes a transmission nut that mates with the output shaft of the power unit. The transmission nut is fixed to the sliding unit, so that when the power unit drives the transmission nut through the output shaft, the transmission nut can directly drive the sliding unit to move, reducing energy loss during power transmission, improving power transmission efficiency, and ensuring that the sliding unit responds quickly and accurately to the drive commands of the power unit.

[0076] Optionally, the sliding unit can be a slide table. The output shaft of the first power unit 4021, the first guide shaft 4024, and the first transmission nut are all passed through the first sliding unit 4023 (first slide table), and a first linear bearing 4023a is provided between the first guide shaft 4024 and the first slide table; wherein, the flexible traction member 401 is fixedly connected to the first sliding unit 4023 (first slide table) (for example, the flexible traction member 401 is passed through the first sliding unit 4023).

[0077] The output shaft of the second power unit 3031, the second guide shaft 3034, and the second transmission nut are all passed through the second sliding unit 3033 (second slide table), and a second linear bearing 3033a is provided between the second guide shaft 3034 and the second slide table; wherein, the push-pull member 302 is fixedly connected to the second sliding unit 3033 (second slide table) (for example, the push-pull member 302 is passed through the second sliding unit 3033).

[0078] In this way, it can be ensured that the transmission nut moves back and forth along the axial direction of the output shaft of the power unit, and drive the push-pull component 302 / flexible traction component 401 to move back and forth along the axial direction as well. The slide table forms a stable connection with each component, preventing the slide table from shaking or deviating during movement; at the same time, it ensures that the transmission nut moves stably along the axial direction of the output shaft, thereby ensuring that the flexible traction component 401 and the push-pull component 302 move accurately along the preset trajectory.

[0079] Optionally, the slide table is equipped with a bearing housing for an integrated linear bearing or a bearing housing for preventing the linear bearing from falling off, and the bearing housing is detachably connected to the slide table. The bearing housing for the integrated linear bearing can convert the sliding friction between the guide shaft and the slide table into rolling friction, which can significantly reduce frictional resistance, make the sliding unit move more smoothly along the guide shaft, and reduce component wear.

[0080] Optionally, it also includes: a common frame assembly, wherein the radiation source driving device 402, the push-pull driving device 303 and the guide structure are all fixed on the common frame assembly; wherein, the common frame assembly is provided with a guide shaft extending along the moving direction of the sliding unit, and the sliding unit is provided with a linear bearing that slides with the guide shaft to guide and limit the movement of the sliding unit.

[0081] The shared frame components fix the radiation source drive device 402, the push-pull drive device 303, and the guide structure, concentrating the originally scattered components and further improving the overall compactness of the device structure, which meets the requirements of equipment miniaturization.

[0082] The guide shaft on the shared frame assembly slides with the linear bearing on the sliding unit, providing additional guiding constraints for the sliding unit and preventing it from shifting in a direction perpendicular to the guide shaft during movement. This further improves the movement accuracy of the sliding unit and ensures the accurate positioning of the radiation source 10 and the deformable guide 301.

[0083] Optionally, the common frame assembly includes multiple supports for supporting and securing the radiation source drive device 402, the push-pull drive device 303, and the guide structure.

[0084] Optionally, the common frame assembly includes a first bracket 801 and a second bracket 802 for fixing the power unit. The output shaft of the power unit passes through the first bracket 801 and the second bracket 802 in sequence, and the free end of the output shaft of the power unit is mounted on the second bracket 802 by a ball bearing 90 to fix it and ensure the rotation function of the output shaft. The two ends of the guide shaft are respectively located on the first bracket 801 and the second bracket 802, and are arranged parallel to the output shaft of the power unit.

[0085] The first bracket 801 and the second bracket 802 fix the power unit and its output shaft, and the free end of the output shaft is mounted on the second bracket 802 through the ball bearing 90, so that both ends of the output shaft are stably supported and the output shaft is prevented from shaking or bending during rotation; the ball bearing 90 reduces the friction between the output shaft and the second bracket 802, ensuring stable rotation of the output shaft and extending its service life.

[0086] Optionally, the manifold guide sleeve 50 is attached to the second bracket 802; wherein, the flexible traction member 401 extends from the end of the manifold guide sleeve 50 and is connected to the sliding unit of the radiation source driving device 402, and the sliding unit of the radiation source driving device 402 is located between the first bracket 801 and the second bracket 802; the push-pull member 302 extends from the end of the manifold guide sleeve 50 and is connected to the sliding unit of the push-pull driving device 303, and the sliding unit of the push-pull driving device 303 is located between the first bracket 801 and the second bracket 802.

[0087] The manifold guide sleeve 50 overlaps with the second bracket 802. The flexible traction member 401 and the push-pull member 302 extend from the end of the manifold guide sleeve 50 and are connected to the corresponding sliding unit. The sliding unit is located between the first bracket 801 and the second bracket 802, making the overall structure more compact.

[0088] Optionally, the common frame assembly also includes a third bracket 803 for supporting the second channel 502 of the manifold guide sleeve 50. The third bracket 803 is disposed away from the first channel 501, and the flexible traction member 401 and the elastic member 70 are also located within the second channel 502 supported by the second bracket 802.

[0089] The third bracket 803 only supports the second channel 502 of the manifold guide sleeve 50, providing dedicated support for the second channel 502 to prevent bending or deformation caused by excessive length or stress on the second channel 502.

[0090] Optionally, the shared frame assembly also includes a base 804, to which each bracket (first bracket 801, second bracket 802, and third bracket 803) and shield 20 are fixed for integrated installation of all components. Integrating all core components of the device onto the same base 804 forms a complete functional module; during subsequent equipment assembly, only the base 804 needs to be connected to the main body of the equipment, eliminating the need to install each component individually, thus simplifying the equipment assembly process and improving assembly efficiency.

[0091] Optionally, both the radiation source drive device 402 and the push-pull drive device 303 further include: a position sensing unit, including a sensing element and at least two sensing switches; the sensing element is fixed on the sliding unit, the sensing switches are fixed at intervals on the common frame assembly along the moving direction of the sliding unit, and the sensing switches are electrically connected to the power unit so as to control the start and stop of the power unit through the cooperation of the sensing element and the sensing switches.

[0092] When the sensing element moves with the sliding unit to a position corresponding to any of the sensing switches, the sensing switch can send a signal to control the start and stop of the power unit, so as to realize the positioning of the radiation source 10 or the deformable guide 301.

[0093] The sensor moves with the sliding unit and works in conjunction with the induction switches at different positions to precisely control the start and stop of the power unit. This enables the precise positioning of the radiation source 10 in the shielding / irradiation position and the deformable guide 301 in the initial / target position of pick-up and delivery. This avoids problems such as the radiation source 10 failing to shield / irradiate properly or the items to be irradiated failing to be picked up and delivered properly due to positional deviations, ensuring the reliable operation of the device.

[0094] Optionally, the inductive switch can be any one of a photoelectric switch, an infrared sensor, a proximity switch, or a micro switch; in the position sensing unit of the radiation source driving device 402, at least one inductive switch corresponds to the shielding position of the radiation source 10, and at least one inductive switch corresponds to the irradiation position of the radiation source 10; in the position sensing unit of the push-pull driving device 303, at least one inductive switch corresponds to the initial pick-up and delivery position of the deformable guide 301, and at least one inductive switch corresponds to the target pick-up and delivery position of the deformable guide 301.

[0095] The inductive switch can be of various types, such as photoelectric switch and infrared sensor, and can be flexibly selected according to the device's operating environment (such as dust, humidity) and positioning accuracy requirements, thereby improving the flexibility and adaptability of the position sensing unit design.

[0096] The inductive switch of the radiation source drive device 402 corresponds to the shielding / irradiation position of the radiation source 10, and the inductive switch of the push-pull drive device 303 corresponds to the initial / target position of the deformable guide 301. This makes the function of each inductive switch clear, avoids confusion in the control logic, and ensures that the corresponding power unit can start and stop accurately according to the actual functional requirements.

[0097] Optionally, the flexible traction component 401 can be any one of steel wire rope, flexible rope, or metal wire. This allows for adaptation to different application scenarios and improves the versatility of the component: by selecting steel wire rope, flexible rope, or metal wire for the flexible traction component 401, it is possible to flexibly choose according to the weight of the radioactive source 10, the moving distance, and the operating environment (such as corrosiveness and temperature). For example, a high-strength steel wire rope can be used for a heavy radioactive source 10, while a flexible rope can be used for a light radioactive source 10, thereby improving the versatility and adaptability of the component and meeting the driving requirements of the radioactive source 10 in different scenarios.

[0098] Optionally, the shield 20 is made of high atomic number materials such as tungsten, molybdenum, and lead, composite materials, or polymer materials, and the shield 20 can partially or completely cover the movement path of the radiation source 10.

[0099] The shielding body 20 is made of high atomic number materials such as tungsten, molybdenum, and lead, or composite materials and polymers. It can flexibly select appropriate shielding materials according to the type of radiation source 10 (such as α, β, and γ rays) and radiation intensity. For example, tungsten and lead can be used for strong radiation sources 10, while composite materials or polymers can be used for weak radiation sources 10, ensuring the shielding effect while taking into account material cost and device weight.

[0100] The shield 20 can partially or completely cover the movement path of the radiation source 10. The coverage range can be flexibly designed according to the actual radiation protection needs (such as shielding only key areas or shielding the entire path). Under the premise of ensuring radiation safety, it avoids material waste and increased device weight caused by excessive shielding, and achieves a balance between protection effect and cost.

[0101] It should be noted that the radiation source control device with integrated pick-up and delivery function provided in this embodiment has the dual operation capability of simultaneously and independently driving the radiation source (implemented by the radiation source driving component) and driving the deformable guide (implemented by the pick-up and delivery push-pull component).

[0102] For example, when only the position of the radiation source needs to be adjusted (without needing to pick up or drop the irradiated object), the radiation source drive assembly can be activated independently. The power unit of the radiation source drive device (such as a lead screw stepper motor assembly) drives the sliding unit to move through the transmission unit (transmission nut). The sliding unit drives the flexible traction component (such as a steel wire rope) to move along the first channel (curved bypass channel) of the guide structure, thereby pulling the radiation source to move along a preset trajectory.

[0103] After the irradiation operation is completed, the radiation source drive assembly is activated separately. The power unit rotates in reverse, and the flexible traction component pulls the radiation source from the irradiation position outside the shield to the shielding position inside the shield. At this time, the shield completely shields the radiation source, blocking radiation leakage and ensuring the safety of the surrounding environment. During this process, the power unit of the pick-up and push-pull assembly is not activated, and the deformable guide remains in its initial position (such as the storage position near the shield) and does not participate in the movement.

[0104] When the object to be irradiated has been placed in the irradiation area in advance (without needing to be picked up or moved), the radiation source drive component is activated separately. The power unit operates in the forward direction, and the flexible traction component pushes the radiation source from the shielded position to the irradiation position. At the same time, the elastic component (such as a spring) releases elastic potential energy and applies a reverse pulling force to the flexible traction component to prevent it from bending due to the thrust, ensuring that the radiation source accurately reaches the irradiation area. At this time, the deformable guide component is still in a stationary state.

[0105] For example, when only the irradiated item needs to be picked up and delivered (without adjusting the position of the radiation source), the pick-up and delivery push-pull assembly can be activated separately. The power unit of the pick-up and delivery push-pull drive device (such as a lead screw stepper motor assembly) drives the sliding unit to move through the transmission unit. The sliding unit drives the push-pull component to move along the second channel (straight main channel) of the guide structure, thereby pushing or pulling the deformable guide component (such as a shape memory hose) to move.

[0106] If the item to be irradiated needs to be transferred from the outside to the irradiation area, the separate pick-and-pull assembly is activated. The power unit operates in the forward direction, and the push-pull component pushes the deformable guide to bend and adapt to the complex space inside the equipment until the carrier at its front end (such as a sample tray or mechanical claw) reaches the item storage position. After the item is picked up, the power unit operates in the reverse direction, and the push-pull component pulls the deformable guide to bring the item back to the irradiation area. During this process, the radiation source remains in the shielded position (or is already in the irradiation position), and the radiation source drive assembly is not activated to avoid unnecessary movement of the radiation source and thus radiation risk.

[0107] When it is necessary to replace the carrier at the front end of the deformable guide (such as replacing it with a mechanical claw from a sample tray), the pick-and-pull assembly is activated separately to move the deformable guide to a maintenance position that is easy to operate. After the replacement is completed, it is returned to its initial position. During this process, the radiation source is always in a shielded position to ensure the safety of maintenance personnel.

[0108] For example, the simultaneous operation of the radiation source drive and the deformable guide drive, based on their non-interfering guide paths and control logic, can complete the coordinated operation of "item retrieval and delivery" and "radiation source position switching" within the same time period, greatly shortening the overall operation process time and adapting to the needs of efficient and continuous irradiation operations.

[0109] The first channel (for the flexible traction component) and the second channel (for the push-pull component and deformable guide component) of the guide structure partially overlap, but the radiation source and the deformable guide component will not collide when they move simultaneously. In addition, the control module of the radiation source control device can synchronously send drive commands to the radiation source drive device and the pick-and-place push-pull drive device. The power units of the two start synchronously according to the commands, and the position of their respective sliding units is fed back in real time through the position sensing unit (such as photoelectric switch), ensuring that the movement rhythm of the two is matched (e.g., when the deformable guide component delivers the item to the irradiation area, the radiation source moves to the irradiation position exactly at the same time).

[0110] Taking the scenario of "the item to be irradiated needs to be grabbed from the outside and irradiated immediately" as an example, the control module simultaneously sends start commands to the radiation source drive device and the pick-and-place push-pull drive device, and the two power units operate synchronously in the forward direction. The sliding unit of the pick-and-place push-pull assembly drives the push-pull component to move along the second channel, pushing the deformable guide component to bend and adapt to the internal space of the equipment. Its front carrier (such as a mechanical claw) moves from the initial position to the item storage position. After the item is picked up, it continues to move along the second channel to the target position in the irradiation area. At the same time, the sliding unit of the radiation source drive assembly drives the flexible traction component to move along the first channel, pushing the radiation source from the shielding position to the irradiation position; the elastic component releases elastic potential energy to ensure that the flexible traction component remains in a straight line, and the radiation source moves accurately to the irradiation area.

[0111] When the deformable guide delivers the item to be irradiated to the preset target position in the irradiation area, the radiation source arrives at the irradiation position at the same time and the irradiation operation begins immediately. During this process, the two are located in real time through the position sensing unit to ensure the synchronization of the actions, which greatly shortens the overall time of "picking up and delivering - waiting - irradiation" and improves the efficiency of the operation.

[0112] After the irradiation operation is completed, the control module can simultaneously send a reset command. The radiation source drive component drives the radiation source back to the shielded position, and the pick-up and delivery push-pull component drives the deformable guide to send the irradiated item back to the initial position (or the designated storage position). The two complete the reset simultaneously, preparing for the next operation.

[0113] For ease of description and distinction, the power unit, transmission unit, sliding unit, and position sensing unit of the radiation source driving device 402 are defined as the first power unit 4021, the first transmission unit 4022, the first sliding unit 4023, and the first position sensing unit, respectively; similarly, the pick-and-place push-pull device unit, transmission unit, sliding unit, and position sensing unit are defined as the second power unit 3031, the second transmission unit 3032, the second sliding unit 3033, and the second position sensing unit, respectively.

[0114] In addition, "forward" in this article can be understood as moving towards the shield 20 and the direction of extending out of the shield 20 to irradiate or pick up / deliver. "backward" can be understood as moving away from the shield 20 and the direction of extending out of the shield 20 to irradiate or pick up / deliver.

[0115] For example, when irradiation by the radiation source 10 is not required, the first power unit 4021 (first lead screw stepper motor) in the radiation source drive device 402 rotates in reverse, driving the corresponding first transmission unit 4022 (first transmission nut) to move backward. The first transmission nut then drives the corresponding first sliding unit 4023 (first slide table) to move backward along the first guide shaft 4024. The first slide table then pulls the flexible traction member 401 to move backward until it reaches the end of the first guide shaft 4024 away from the second support 802. A first inductive switch 4026 is provided at the end of 2. A first sensing element 4025 moves with the first slide to the first inductive switch 4026. The first inductive switch 4026 senses the first sensing element 4025 and begins to operate, terminating the operation of the first lead screw stepper motor. During this process, the flexible traction element 401 is only subjected to tension and will not bend or deform during movement. During this process, the radiation source 10 is pulled by the flexible traction element 401 to a position away from the irradiation area (shielding position) and located inside the shielding body 20. During this process, the radiation source 10 synchronously compresses the spring to accumulate elastic potential energy. Combined with... Figure 2 and Figure 4 As shown.

[0116] When the deformable guide 301 needs to be extended, the second power unit 3031 (second lead screw stepper motor) in the pick-and-place drive device rotates forward, driving the corresponding second transmission unit 3032 (second transmission nut) to move forward. The second transmission nut then drives the corresponding second sliding unit 3033 (second slide table) to move forward along the second guide shaft 3034. The second slide table then pushes the push-pull member 302 forward until it reaches the end of the second guide shaft 3034 near the second bracket 802. A third inductive switch 3036 is located near the end of the second support 802. The second sensor 3035 moves with the second slide to the second inductive switch 4027. The third inductive switch 3036 detects the second sensor 3035 and begins to operate, terminating the operation of the second lead screw stepper motor. During this process, the push-pull component 302 pushes the variable guide (hose) forward along the second channel 502 of the manifold guide sleeve 50, pushing the adapter 3011 of the variable guide to the initial pick-up and delivery position to facilitate the retrieval of the object to be irradiated. Combined with... Figure 4 and Figure 6 As shown.

[0117] When the deformable guide 301 needs to be pulled back, the second power unit 3031 (second lead screw stepper motor) in the pick-and-place drive device rotates forward, driving the corresponding second transmission nut to move backward. The second transmission nut then drives the corresponding second slide to move backward along the second guide shaft 3034. The second slide then pulls the push-pull member 302 backward until it reaches the end of the second guide shaft 3034 away from the second bracket 802. A first... The fourth sensor 3037 is activated when the second sensor 3035 moves to the position of the fourth sensor 3037 along with the second slide. The fourth sensor 3037 detects the second sensor 3035 and begins operation, terminating the second lead screw stepper motor. During this process, the push-pull component 302 pulls the variable guide (hose) backward along the second channel 502 of the guide sleeve, pulling the adapter 3011 of the variable guide back to the target position. At this time, the object to be irradiated is also pulled back to the target position (the position to be irradiated). Combined with... Figure 1 and Figure 2 As shown.

[0118] When irradiation by the radiation source 10 is required, the first power unit 4021 (first lead screw stepper motor) in the radiation source drive device 402 rotates forward, driving the corresponding first transmission nut to move forward. The first transmission nut then drives the corresponding first slide to move forward along the first guide shaft 4024. The first slide pushes the flexible traction member 401 (steel wire rope) forward until it reaches the end of the first guide shaft 4024 near the second bracket 802. A second inductive switch 4027 is provided at the end of the first guide shaft 4024 near the second bracket 802. The first inductive switch 4025 moves with the first slide to... At the second inductive switch 4027, the second inductive switch 4027 senses that the first inductive element 4025 has started to work, terminating the operation of the first lead screw stepper motor; during this process, the first slide table generates a pushing force on the flexible traction element 401 (steel wire rope) (the steel wire rope is very prone to bending and deformation under the pushing force), but at this time, the elastic potential energy stored in the spring begins to be released, generating a reverse pulling force on the flexible traction element 401 (steel wire rope), keeping the flexible traction element 401 (steel wire rope) from bending and deformation during this process. The flexible traction element 401 (steel wire rope) pushes the radiation source 10 away from the shield 20, reaching the predetermined irradiation position. Figure 1 and Figure 6 As shown.

[0119] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims, and the foregoing embodiments should be considered exemplary and non-limiting.

Claims

1. An integrated radioactive source control device, comprising a radioactive source; characterized in that, Also includes: A shielding enclosure is used to shield radiation from a radioactive source. A push-pull assembly for picking up and delivering, comprising a deformable guide, a push-pull component, and a push-pull drive device connected in sequence; A radiation source driving assembly includes a flexible traction member and a radiation source driving device, wherein one end of the flexible traction member is connected to a radiation source and the other end is connected to the radiation source driving device. The guide structure has at least two guide channels with partially overlapping paths. The two guide channels are respectively for the flexible traction component and the push-pull component to pass through, so as to guide the movement trajectory of the two. Among them, the radiation source driving device can drive the flexible traction component to move along the corresponding guide channel, thereby moving the radiation source to the shielding position inside the shielding body or the irradiation position outside the shielding body; the push-pull driving device can drive the push-pull component to move along the corresponding guide channel, thereby moving the deformable guide component to pick up and deliver the item to be irradiated.

2. The integrated radioactive source control device according to claim 1, characterized in that, The guide structure is a manifold guide sleeve, and the two guide channels of the manifold guide sleeve include: The first channel is for the installation of flexible traction components; The second channel is for the passage of push-pull components and deformable guide components; The first channel is a curved bypass channel, and the second channel is a straight main channel.

3. The integrated radioactive source control device according to claim 2, characterized in that, Also includes: The limiting structure is located on the manifold guide sleeve; An elastic element is fitted onto a flexible traction element, with one end of the elastic element abutting against the radiation source and the other end abutting against the limiting structure; When the radiation source is located in the shielding position inside the shielding body, the elastic element is in a compressed state and accumulates elastic potential energy; when the radiation source moves to the irradiation position outside the shielding body, the elastic element releases elastic potential energy to apply a reverse pulling force to help the flexible traction element maintain a straight state.

4. The integrated radioactive source control device according to claim 3, characterized in that, The push-pull component is provided with a clearance groove extending along its length, at least part of the limiting structure extends into the clearance groove, and the length of the clearance groove is greater than or equal to the maximum travel of the push-pull component, so as to prevent interference between the push-pull component and the limiting structure during the movement of the push-pull component.

5. The integrated radioactive source control device according to claim 4, characterized in that, The limiting structure can be a stop block, which has a through opening for the manifold guide sleeve, push-pull component and wire rope to pass through; Among them, a boss protrudes inward from the inner wall of the through-hole, and the boss extends into the relief groove of the push-pull member and abuts against the elastic member.

6. The integrated radioactive source control device according to claim 1, characterized in that, The deformable guide is connected to an adapter at the end away from the push-pull component for detachably connecting a sample tray or mechanical gripper to carry the item to be irradiated.

7. The integrated radioactive source control device for pickup and delivery according to any one of claims 1 to 6, characterized in that, Both the radiation source driving device and the push-pull driving device include a power unit, a transmission unit, and a sliding unit; the power unit drives the sliding unit to slide through the transmission unit. Among them, the sliding unit of the radiation source driving device is fixedly connected to the end of the flexible traction component away from the radiation source; the sliding unit of the push-pull driving device is fixedly connected to the end of the push-pull component away from the deformable guide component.

8. The integrated radioactive source control device according to claim 7, characterized in that, Also includes: The common frame assembly, the radiation source drive device, the push-pull drive device and the guide structure are all fixed on the common frame assembly; The common frame assembly is provided with a guide shaft extending along the moving direction of the sliding unit, and the sliding unit is provided with a linear bearing that slides with the guide shaft to guide and limit the movement of the sliding unit.

9. The integrated radioactive source control device according to claim 8, characterized in that, Both the radiation source drive device and the push-pull drive device also include: The position sensing unit includes a sensing element and at least two sensing switches; the sensing element is fixed on the sliding unit, and the sensing switches are fixed at intervals on the common frame assembly along the moving direction of the sliding unit, and the sensing switches are electrically connected to the power unit so as to control the start and stop of the power unit through the cooperation of the sensing element and the sensing switches.

10. The integrated radioactive source control device according to claim 9, characterized in that, In the position sensing unit of the radiation source driving device, at least one sensing switch corresponds to the shielding position of the radiation source, and at least one sensing switch corresponds to the irradiation position of the radiation source. In the position sensing unit of the push-pull drive device, at least one sensing switch corresponds to the initial position of the deformable guide and at least one sensing switch corresponds to the target position of the deformable guide.

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