Radioactive source control device integrating taking and sending

Abstract

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

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nuclear radiation detection, and particularly relates to a radiation source control device integrated with taking and sending. BACKGROUND

[0002] A radiation source is a general term for a radiation source made of radioactive substances. At present, radiation source-based ray application technology is widely used in the fields of industry, agriculture, medicine, resources, environment, military affairs and scientific research.

[0003] The rays emitted by the radiation source have a certain energy, which can destroy cell tissues and thus cause harm to the human body. When a person is exposed to a large amount of rays, symptoms such as dizziness, weakness, loss of appetite, nausea and vomiting may occur, and in severe cases, the body may be damaged and even death may occur. However, when a person is exposed to a small amount of rays, there are generally no discomfort symptoms and no harm to the body. Therefore, the radiation source must be strictly controlled and managed.

[0004] At present, the radiation source control device is generally large in size and single in function, and the control mode and movement path of the radiation source are relatively rigid, which is difficult to effectively use in precise or complex equipment. However, under normal circumstances, the radiation source control device is not used alone, and in most cases, it needs to be used together with other additional push-pull devices. In terms of space occupation of internal devices of equipment, 1+1 is usually much greater than 2, and the configuration of additional push-pull devices will undoubtedly occupy more internal space of the equipment. SUMMARY

[0005] An object of the present application is to provide a radiation source control device integrated with taking and sending functions, at least to solve the above problems.

[0006] To achieve the above object, some embodiments of the present application provide a radiation source control device integrated with taking and sending functions, comprising a radiation source; further comprising:

[0007] A shielding body for shielding the radiation of the radiation source;

[0008] A taking and sending push-pull assembly comprising a deformable guide, a push-pull piece and a push-pull driving device connected in sequence;

[0009] A radiation source driving assembly comprising a flexible traction piece and a radiation source driving device, one end of the flexible traction piece being connected with the radiation source and the other end being connected with the radiation source driving device;

[0010] A guide structure provided with at least two partially overlapping guide channels, the two guide channels being provided for the flexible traction piece and the push-pull piece to pass through, so as to guide the movement trajectories of the two;

[0011] The radiation source driving device can drive the flexible traction member 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 member to move along the corresponding guide channel, and drive the deformable guide member to move to take and deliver the irradiation object.

[0012] Compared with the related art, in the scheme provided by the embodiments of the present application, the radiation source control (moving to the shielding / irradiation position) and the irradiation object taking and delivering function are integrated in the same device, without the need for additional configuration of an independent push-pull device, breaking the traditional split design of “radiation source control device + additional push-pull device”, greatly reducing the internal space occupation of the device, solving the problem of “1+1 far greater than 2” in the space occupation of the traditional device, and providing a structural basis for the miniaturization and light weight of the device.

[0013] The two guide channels of the guide structure respectively constrain the trajectories of the flexible traction member and the push-pull member, avoiding deviation and interference of the two during movement, ensuring that the radiation source can accurately move to the shielding position or the irradiation position, and at the same time ensuring that the deformable guide member stably takes and delivers the irradiation object, improving the accuracy and reliability of the operation of the device.

[0014] The shielding body effectively shields the radiation of the radiation source, and when the radiation source is inside the shielding body, it can block the leakage of radiation, protecting the operator and the surrounding environment from radiation damage; only when the radiation source moves to the irradiation position outside the shielding body, irradiation operation is performed, realizing controllable management of radiation risk, and meeting the industry requirements for strict control and management of the radiation source. BRIEF DESCRIPTION OF DRAWINGS

[0015] One or more embodiments are exemplarily illustrated by the pictures in the drawings corresponding thereto, and the exemplarily illustrations do not constitute a limitation on the embodiments, and the elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified, and the drawings do not constitute a proportional limitation.

[0016] Figure 1 is a structural schematic diagram of a radiation source control device provided by the embodiments of the present application;

[0017] Figure 2 is a structural schematic diagram of the radiation source control device from another perspective provided by the embodiments of the present application;

[0018] Figure 3 is Figure 2 is a partial enlarged schematic diagram of position A in

[0019] Figure 4 is a structural schematic diagram of the radiation source control device from another perspective provided by the embodiments of the present application;

[0020] Figure 5 is Figure 4A local enlarged schematic view at B;

[0021] Figure 6 is a structural schematic view of another perspective of the radioactive source control device provided by the embodiments of the present disclosure;

[0022] Figure 7 is Figure 6 A local enlarged schematic view at C.

[0023] Reference signs:

[0024] 10: radioactive source;

[0025] 20: shielding body;

[0026] 301: deformable guide; 3011: adapter; 302: push-pull piece; 3021: connecting part; 3022: avoiding slot; 303: push-pull driving device; 3031: second power unit; 3032: second transmission unit; 3033: second sliding unit; 3033a: second linear bearing; 3034: second guide shaft; 3035: second sensing piece; 3036: third sensing switch; 3037: fourth sensing switch;

[0027] 401: flexible traction piece; 402: radioactive 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 piece; 4026: first sensing switch; 4027: second sensing switch;

[0028] 50: manifold guide sleeve; 501: first channel; 502: second channel;

[0029] 60: limiting structure; 601: boss;

[0030] 70: elastic piece;

[0031] 801: first support; 802: second support; 803: third support; 804: base;

[0032] 90: ball bearing. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0034] The terms "first", "second", and the like in the description and in the claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0035] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back", and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0036] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixed connection, detachable connection, or integral structure; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0037] Unless otherwise specified, the term "a plurality of" means two or more.

[0038] In the embodiments of the present disclosure, the character " / " represents a "or" relationship between the objects before and after it. For example, A / B means: A or B.

[0039] The term "and / or" is a description of the association between objects, which means that there can be three relationships. For example, A and / or B means: A or B, or, A and B, the three relationships.

[0040] It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0041] In combination with Figures 1 to 7As shown, the radiation source control device with integrated taking and delivering functions provided by the embodiment of the present disclosure comprises a radiation source 10; further comprises: a shielding body 20 for shielding the radiation of the radiation source 10; a taking and delivering push-pull assembly comprising a deformable guide 301, a push-pull piece 302 and a push-pull driving device 303 connected in sequence; a radiation source driving assembly comprising a flexible traction piece 401 and a radiation source driving device 402, one end of the flexible traction piece 401 is connected with the radiation source 10, and the other end is connected with the radiation source driving device 402; a guide structure is provided with at least two partially overlapped guide channels, and the two guide channels are respectively provided for the flexible traction piece 401 and the push-pull piece 302 to guide the movement trajectories of the two; wherein the radiation source driving device 402 can drive the flexible traction piece 401 to move along the corresponding guide channel, and drive the radiation source 10 to move to a shielding position inside the shielding body 20 or an irradiation position outside the shielding body 20; the push-pull driving device 303 can drive the push-pull piece 302 to move along the corresponding guide channel, and drive the deformable guide 301 to move to take and deliver the irradiation object.

[0042] The radiation source control device with integrated taking and delivering functions provided by the embodiment of the present disclosure integrates the radiation source control (moving to the shielding / irradiation position) and the taking and delivering function of the irradiation object in the same device, without the need for additional configuration of an independent push-pull device, breaking the traditional split design of “radiation source control device + additional push-pull device”, greatly reducing the internal space occupation of the device, solving the problem of “1+1 far greater than 2” in the space occupation of the traditional device, and providing a structural basis for the miniaturization and light weight of the device.

[0043] The two guide channels of the guide structure respectively constrain the trajectories of the flexible traction piece 401 and the push-pull piece 302, avoiding deviation and interference of the two during movement, ensuring that the radiation source 10 can accurately move to the shielding position or the irradiation position, and at the same time ensuring that the deformable guide 301 can stably take and deliver the irradiation object, improving the accuracy and reliability of the device operation.

[0044] The shielding body 20 effectively shields the radiation of the radiation source 10, and when the radiation source 10 is inside the shielding body 20, it can block the radiation leakage, protecting the operating personnel and the surrounding environment from radiation damage; only when the radiation source 10 moves to the irradiation position outside the shielding body 20, the irradiation operation is carried out, realizing controllable management of radiation risk, and meeting the industry requirements of strict control and management of the radiation source 10.

[0045] The radiation source control device provided by the embodiment does not need to additionally configure an independent radiation source control device and a taking and delivering device, and the integrated design still maintains a compact structure while realizing the double driving mode; and the operation mode can be selected according to the needs, avoiding energy waste caused by irrelevant power unit starting, and meeting the development trend of device miniaturization and energy saving.

[0046] Optionally, the deformable guide 301 can be bent in any direction and can restore to a straight line in an unconstrained state and can remain straight only under linear action.

[0047] The deformable guide 301 can be bent in any direction, can adapt to complex spatial layout of instruments and equipment, meet the taking and delivering requirements of different distances, directions and angles, and solve the problem of rigid movement path of traditional devices. Meanwhile, the deformable guide 301 can restore to a straight line in an unconstrained state and can remain straight only under linear action, so as to ensure stable carrying of the irradiation object during the taking and delivering process and avoid deviation or falling of the object due to deformation of the guide.

[0048] Optionally, the deformable guide 301 is a shape memory hose, and the end of the push-pull piece 302 away from the push-pull driving 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 a chamfer and a necking, so that the internal passage of the push-pull piece 302 and the internal passage of the shape memory hose form a smooth transition through passage after splicing.

[0049] The shape memory hose is adopted as the deformable guide 301, which has flexibility in deformation and stability in reset. The chamfer and the necking of the connecting part 3021 of the push-pull piece 302 make the internal passage of the push-pull piece 302 and the internal passage of the shape memory hose smoothly transition, form a through passage, avoid jamming of the radioactive source 10 (or the traction piece 401 and the elastic piece 70) during conveying in the passage due to steps and edges, and improve the taking and delivering fluency.

[0050] Optionally, the end of the shape memory hose away from the push-pull piece 302 is connected with an adapter 3011 of a hollow structure, and 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 with a sample tray or a mechanical claw to carry the irradiation object.

[0051] The carrier mounting part of the adapter 3011 can be detachably connected with a sample tray or a mechanical claw, can flexibly replace the carrier according to the shape and size of the irradiation object, adapt to the taking and delivering requirements of different types of objects, does not need to design a taking and delivering structure for a specific object, and greatly improves the universality and application range of the device.

[0052] Optionally, the end of the adapter 3011 connected with the carrier mounting part can be a planar structure. In this way, it is helpful to increase the contact area with the carrier such as the sample tray and the mechanical claw, make the carrier mounting more stable, reduce the risk of shaking or falling of the carrier during the taking and delivering process, and further ensure the safety of the taking and delivering of the irradiation object.

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

[0054] The integrated structure design of the push-pull piece 302, the deformable guide piece 301 and the adapter piece 3011 reduces the connection nodes among the three, avoids the failure risk caused by loose connection and wear, and simplifies the assembly process and reduces the assembly error.

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

[0056] Optionally, the guide structure is a manifold guide sleeve 50, and two guide channels of the manifold guide sleeve 50 include: a first channel 501 for the flexible traction piece 401 to pass through; and a second channel 502 for the push-pull piece 302 and the deformable guide piece 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 piece 401 to pass through, and the second channel 502 (straight main channel) is for the push-pull piece 302 and the deformable guide piece 301 to pass through. Through the differentiation of channel forms and functions, the flexible traction piece and the push-pull piece independently operate 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 that of the first channel 501.

[0059] The second channel 502 has a larger cross-sectional area than the first channel 501 (or the cross-sectional areas of the two are equal), and the channel specifications can be flexibly designed according to the actual sizes of the push-pull piece 302, the deformable guide piece 301 and the flexible traction piece 401. While meeting the component passing requirement, the space waste caused by excessively large channel size is avoided, and the compactness of the overall structure of the device is further optimized.

[0060] Optionally, the second channel 502 of the manifold guide sleeve 50 passes through the shielding body 20 near the end of the radioactive source 10, and is arranged and extended to the outside of the shielding body 20 along the pre-set path in the shielding body 20, so that the push-pull piece 302, the deformable guide piece 301 and other components located in the second channel 502 can also be protected by the shielding body 20, avoiding the leakage of radiation through the gap of the second channel 502 when the radioactive source 10 is at the irradiation position, and further improving the radiation safety protection level of the device.

[0061] Optionally, the manifold guide sleeve 50 inside the shielding body 20 and the shielding body 20 can be an integrated structure, which helps to eliminate the installation gap between the guide sleeve and the shielding body 20, avoid the leakage of radiation from the gap, and at the same time, enhance the connection strength of the two, so that the guide structure and the shielding body 20 form a stable whole, and the vibration resistance and impact resistance of the device are improved.

[0062] Optionally, the device further comprises a limiting structure 60 arranged on the manifold guide sleeve 50, and an elastic member 70 arranged on the flexible traction member 401, one end of the elastic member 70 abutting against the radioactive source 10, and the other end abutting against the limiting structure 60; when the radioactive source 10 is located at the shielding position inside the shielding body 20, the elastic member 70 is in a compressed state and accumulates elastic potential energy; when the radioactive source 10 moves to the irradiation position outside the shielding body 20, the elastic member 70 releases the elastic potential energy to apply a reverse pulling force, so as to assist the flexible traction member 401 to keep a straight state, thereby ensuring that the radioactive source 10 moves accurately along the preset track to the irradiation position, and avoiding that the radioactive source 10 deviates and cannot normally irradiate due to the bending of the flexible traction member 401.

[0063] Optionally, the elastic member 70 can be a spring. The spring is a mature and general component, which is low in procurement cost and easy to obtain. Meanwhile, the spring has a simple structure, low failure rate, and convenient maintenance and replacement, thereby 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 actual application, 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 limited by the fixed channel, thereby improving the flexibility and adaptability of the internal structure design of the device.

[0065] Optionally, the push-pull member 302 is provided with an avoiding groove 3022 extending along the length direction thereof, at least part of the limiting structure 60 extends into the avoiding groove 3022, and the length of the avoiding groove 3022 is greater than or equal to the maximum moving stroke of the push-pull member 302, so as to prevent the push-pull member 302 from interfering with the limiting structure 60 during movement. That is, the limiting structure 60 extends into the avoiding groove 3022 and does not hinder the movement of the push-pull member 302, completely avoiding the collision and jamming of the two during taking and delivering, and ensuring the stable realization of the taking and delivering function of the push-pull assembly.

[0066] Optionally, the limiting structure 60 can be a stopper, which is configured with a through hole for the manifold guide sleeve 50, the push-pull member 302 and the steel wire to pass through; wherein a boss 601 is protruded inward from the inner wall of the through hole, and the boss 601 extends into the avoiding 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 in the interior of the stopper, the flexible traction member 401 is led out from the avoiding groove 3022 of the push-pull member 302, and then the flexible traction member 401 passes through the first channel 501 of the manifold guide sleeve 50, and finally is connected with the radioactive source driving assembly.

[0068] In some alternative embodiments, the size of the radioactive source 10 is greater than the size of the end face of the elastic member 70, so that the radioactive source 10 is limited by abutting against the elastic member 70. The size of the radioactive source 10 is greater than the size of the end face of the elastic member 70, so that the radioactive source 10 can directly and stably abut against the elastic member 70, and the limitation of the two can be achieved without additional components, avoiding the radioactive source 10 from being separated from or relatively deviated from the elastic member 70 during movement, and ensuring that the reverse pulling force of the elastic member 70 stably acts on the radioactive source 10.

[0069] In some alternative embodiments, a stopper is arranged at the connection between the radioactive source 10 and the flexible traction member 401, and the stopper is located outside the elastic member 70 and abuts against the end of the elastic member 70 to limit the position of the radioactive source 10 outside the elastic member 70. By abutting against the end of the elastic member 70 through the stopper, the structure interference caused by the radioactive source 10 entering the inside of the elastic member 70 is avoided, and the normal implementation of the respective functions of the two is ensured.

[0070] Optionally, the radioactive source driving device 402 and the push-pull driving device 303 each include a power unit, a transmission unit, and a sliding unit; the power unit drives the sliding unit to slide through the transmission unit; the sliding unit of the radioactive source driving device 402 is fixedly connected to the end of the flexible traction member 401 away from the radioactive source 10; and 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] The radioactive source driving device 402 and the push-pull driving device 303 each adopt a standardized structure of power unit-transmission unit-sliding unit, the power unit stably drives the sliding unit through the transmission unit, and then drives the flexible traction member 401 and the push-pull member 302 to move, respectively, ensuring efficient and stable power transmission.

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

[0073] The power unit can be selected from a screw stepper motor assembly, a motor-screw assembly, an electric cylinder, etc., and can be flexibly selected according to the power demand, operation accuracy requirement, cost budget, etc. of the device, and is suitable for application scenarios in different fields such as industry, medicine, and scientific research, greatly improving the application range of the device.

[0074] Taking the screw stepper motor assembly as an example, the output shaft of the power unit is a screw structure. In this way, a reference is provided for the design and assembly of the transmission unit (such as a transmission nut).

[0075] Optionally, the transmission unit comprises a transmission nut matched with the output shaft of the power unit, the transmission nut is fixed on 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 in the power transmission process, improving power transmission efficiency, and ensuring that the sliding unit quickly and accurately responds to the driving instruction of the power unit.

[0076] Optionally, the sliding unit can be a sliding table. The output shaft of the first power unit 4021, the first guide shaft 4024, and the first transmission nut are all arranged in the first sliding unit 4023 (first sliding table), and the first guide shaft 4024 is provided with a first linear bearing 4023a between the first sliding table; wherein the flexible traction member 401 is fixedly connected with the first sliding unit 4023 (first sliding table) (for example, the flexible traction member 401 is arranged in 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 arranged in the second sliding unit 3033 (second sliding table), and the second guide shaft 3034 is provided with a second linear bearing 3033a between the second sliding table; wherein the push-pull member 302 is fixedly connected with the second sliding unit 3033 (second sliding table) (for example, the push-pull member 302 is arranged in the second sliding unit 3033).

[0078] In this way, it can be ensured that the transmission nut moves reciprocally along the axial direction of the output shaft of the power unit, and drives the push-pull member 302 / flexible traction member 401 to also move reciprocally along the axial direction. The sliding table forms a stable connection with each component, avoiding shaking or deviation of the sliding table during movement; at the same time, it ensures stable movement of the transmission nut along the output shaft, thereby ensuring accurate movement of the flexible traction member 401 and the push-pull member 302 along the preset trajectory.

[0079] Optionally, the sliding table is provided with a bearing seat integrated with a linear bearing or a bearing seat for stopping the linear bearing from falling off, and the bearing seat is detachably connected with the sliding table. The bearing seat integrated with the linear bearing can convert sliding friction between the guide shaft and the sliding table into rolling friction, greatly reducing friction resistance, making the sliding unit move more smoothly along the guide shaft, and reducing component wear.

[0080] Optionally, it further comprises a shared frame assembly, the radiation source driving device 402, the push-pull driving device 303, and the guide structure are all fixed on the shared frame assembly; wherein the shared 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 slidingly matched with the guide shaft to guide and limit the movement of the sliding unit.

[0081] The common frame assembly fixes the radioactive source driving device 402, the push-pull driving device 303 and the guide structure, integrates the originally dispersed components, further improves the compactness of the overall structure of the device, and meets the miniaturization requirement of the device.

[0082] The guide shaft on the common frame assembly and the linear bearing on the sliding unit are in sliding fit, which provides additional guide constraint for the sliding unit, avoids the sliding unit from deviating in the direction perpendicular to the guide shaft during movement, further improves the movement accuracy of the sliding unit, and further ensures the position positioning accuracy of the radioactive source 10 and the deformable guide 301.

[0083] Optionally, the common frame assembly comprises a plurality of supports for supporting and fixing the radioactive source driving device 402, the push-pull driving device 303 and the guide structure.

[0084] Optionally, the common frame assembly comprises a first support 801 and a second support 802 for fixing the power unit, the output shaft of the power unit passes through the first support 801 and the second support 802 in sequence, and the free end of the output shaft of the power unit is installed on the second support 802 through a ball bearing 90 to fix and ensure the rotation function of the output shaft; wherein the two ends of the guide shaft are arranged in the first support 801 and the second support 802 respectively, and are arranged in parallel with the output shaft of the power unit.

[0085] The first support 801 and the second support 802 fix the power unit and its output shaft, and the free end of the output shaft is installed on the second support 802 through a ball bearing 90, so that both ends of the output shaft are stably supported, avoiding shaking and bending of the output shaft during rotation; the ball bearing 90 reduces the friction between the output shaft and the second support 802, ensures stable rotation of the output shaft and prolongs the service life.

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

[0087] The manifold guide sleeve 50 is lapped on the second support 802, and the flexible traction member 401 and the push-pull member 302 are connected with the corresponding sliding unit after extending from the end of the manifold guide sleeve 50, and the sliding unit is located between the first support 801 and the second support 802, so that the connection of the overall structure is more compact.

[0088] Optionally, the shared frame assembly further comprises a third support 803 for supporting the second channel 502 of the manifold guide sleeve 50, the third support 803 being arranged away from the first channel 501, and the flexible traction member 401 and the elastic member 70 are also located in the second channel 502 supported by the second support 802.

[0089] The third support 803 only supports the second channel 502 of the manifold guide sleeve 50, and provides special support for the second channel 502 to avoid bending and deformation caused by the second channel 502 being too long or under stress.

[0090] Optionally, the shared frame assembly further comprises a base 804, and each support (the first support 801, the second support 802, and the third support 803) and the shielding body 20 are fixed to the base 804 to integrally install all components. Integrating all core components of the device in the same base 804 forms a complete functional module; during subsequent equipment assembly, only the base 804 needs to be connected to the equipment main body, and there is no need to install each component one by one, thereby simplifying the equipment assembly process and improving the assembly efficiency.

[0091] Optionally, the radioactive source driving device 402 and the push-pull driving device 303 each further comprise a position sensing unit including a sensing member and at least two sensing switches; the sensing member is fixed to the sliding unit, the sensing switches are fixed to the shared 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 member and the sensing switches.

[0092] When the sensing member moves with the sliding unit to a position corresponding to any one 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 position positioning of the radioactive source 10 or the deformable guide member 301.

[0093] The sensing member moves with the sliding unit and cooperates with the sensing switches at different positions to accurately control the start and stop of the power unit, thereby realizing the accurate positioning of the radioactive source 10 at the shielding position / irradiation position and the deformable guide member 301 at the initial position / target position of taking and delivering, avoiding problems such as the radioactive source 10 being unable to be normally shielded / irradiated and the irradiation object being unable to be normally taken and delivered due to position deviation, and ensuring reliable implementation of the device functions.

[0094] Optionally, the sensing switch is any one of a photoelectric switch, an infrared sensor, a proximity switch, or a microswitch; in the position sensing unit of the radioactive source driving device 402, at least one sensing switch corresponds to the shielding position of the radioactive source 10, and at least one sensing switch corresponds to the irradiation position of the radioactive source 10; in the position sensing unit of the push-pull driving device 303, at least one sensing switch corresponds to the initial position of taking and delivering of the deformable guide member 301, and at least one sensing switch corresponds to the target position of taking and delivering of the deformable guide member 301.

[0095] The inductive switch can be selected from a photoelectric switch, an infrared sensor and the like, and can be flexibly selected according to the use environment (such as dust, humidity) and positioning accuracy requirement of the device, so as to improve the flexibility and adaptability of the position sensing unit design.

[0096] The inductive switch of the radiation source driving device 402 corresponds to the shielding / irradiation position of the radiation source 10, and the inductive switch of the push-pull driving device 303 corresponds to the initial / target position of the deformable guide 301, so that the functions of each inductive switch are clear, the control logic is avoided from being confused, and it is ensured that the corresponding power unit can be accurately started and stopped according to the actual functional requirements.

[0097] Optionally, the flexible traction member 401 is any one of a steel wire rope, a flexible rope or a metal wire. In this way, the versatility of the component can be improved: the flexible traction member 401 can be selected from a steel wire rope, a flexible rope or a metal wire, which can be flexibly selected according to the weight, moving distance and use environment (such as corrosion and temperature) of the radiation source 10, for example, a heavy radiation source 10 can be selected to use a high-strength steel wire rope, and a light radiation source 10 can be selected to use a flexible rope, so as to improve the versatility and adaptability of the component and meet the driving requirements of the radiation source 10 in different scenes.

[0098] Optionally, the shielding body 20 is made of tungsten, molybdenum, lead or other high-atomic-number materials, composite materials or polymer materials, and the shielding body 20 can partially or fully cover the moving path of the radiation source 10.

[0099] The shielding body 20 is made of tungsten, molybdenum, lead or other high-atomic-number materials or composite materials or polymers, which can be flexibly selected according to the type (such as α, β and γ rays) and radiation intensity of the radiation source 10, for example, a strong radiation source 10 can be selected to use tungsten or lead, and a weak radiation source 10 can be selected to use a composite material or a polymer, so as to ensure the shielding effect while taking into account the material cost and the weight of the device.

[0100] The shielding body 20 can partially or fully cover the moving path of the radiation source 10, which can be flexibly designed according to the actual radiation protection requirements (such as shielding only the key area or shielding the whole path), so as to avoid excessive shielding and material waste and increase the weight of the device on the premise of ensuring radiation safety, and achieve a balance between protection effect and cost.

[0101] It should be noted that the radiation source control device with integrated pick-and-place function provided in the embodiment has the dual operation capability of simultaneous operation and separate operation for the driving of the radiation source (achieved by the radiation source driving assembly) and the driving of the deformable guide (achieved by the pick-and-place push-pull assembly).

[0102] Exemplarily, when only the position of the radioactive source needs to be adjusted (without the need to take and deliver the irradiation object), the radioactive source driving assembly can be started alone. The power unit (such as a screw stepper motor assembly) of the radioactive source driving device drives the sliding unit to move through the transmission unit (transmission nut), and the sliding unit drives the flexible traction member (such as a steel wire rope) to move along the first channel (bent bypass channel) of the guide structure, and then drives the radioactive source to move along the preset track.

[0103] When the irradiation operation is completed, the radioactive source driving assembly is started alone, the power unit is reversely operated, and the flexible traction member pulls the radioactive source from the irradiation position outside the shielding body to the shielding position inside the shielding body. At this time, the shielding body fully shields the radioactive source, blocks the radiation leakage, and ensures the safety of the surrounding environment. During this process, the power unit of the taking and delivering push-pull assembly is not started, and the deformable guide member remains at the initial position (such as the storage position close to the shielding body) and does not participate in the movement.

[0104] When the irradiation object has been placed in the irradiation area in advance (without the need to take and deliver), the radioactive source driving assembly is started alone, the power unit is forwardly operated, and the flexible traction member pushes the radioactive source to move from the shielding position to the irradiation position. At the same time, the elastic member (such as a spring) releases the elastic potential energy and applies a reverse pulling force to the flexible traction member to avoid its bending due to the pushing force, thereby ensuring that the radioactive source accurately reaches the irradiation area. At this time, the deformable guide member is still in a static state.

[0105] Exemplarily, when only the irradiation object needs to be taken and delivered (without the need to adjust the position of the radioactive source), the taking and delivering push-pull assembly can be started alone. The power unit (such as a screw stepper motor assembly) of the taking and delivering push-pull driving device drives the sliding unit to move through the transmission unit, and the sliding unit drives the push-pull member to move along the second channel (straight main pipe channel) of the guide structure, and then pushes or pulls the deformable guide member (such as a shape memory hose) to move.

[0106] If the irradiation object needs to be transferred from the outside to the irradiation area, the taking and delivering push-pull assembly is started alone, the power unit is forwardly operated, the push-pull member pushes the deformable guide member to bend and adapt to the complex space inside the equipment, until the carrier (such as a sample tray or a mechanical claw) at the front end of the deformable guide member reaches the object storage position. After the object is grabbed, the power unit is reversely operated, and the push-pull member pulls the deformable guide member to bring the object back to the irradiation area. During this process, the radioactive source remains in the shielding position (or has been in the irradiation position), and the radioactive source driving assembly is not started to avoid unnecessary movement of the radioactive source causing radiation risks.

[0107] When the carrier at the front end of the deformable guide member needs to be replaced (such as replacing the sample tray with the mechanical claw), the taking and delivering push-pull assembly is started alone to move the deformable guide member to a maintenance position convenient for operation. After the replacement is completed, the deformable guide member is returned to the initial position. During this process, the radioactive source is always in the shielding position, ensuring the safety of the 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 the convenience of description and distinction, the power unit, transmission unit, sliding unit and position sensing unit of the radioactive 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 power unit, transmission unit, sliding unit and position sensing unit of the taking and sending device 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 in the direction of the shielding body 20 and the direction of the irradiation or taking and sending position extending out of the shielding body 20; and "backward" can be understood as moving in the direction away from the shielding body 20 and the direction of the irradiation or taking and sending position extending out of the shielding body 20.

[0115] For example, when the radioactive source 10 is not needed for irradiation, the first power unit 4021 (first lead screw stepper motor) in the radioactive source driving device 402 is operated in reverse, driving the corresponding first transmission unit 4022 (first transmission nut) to move backward, and the first transmission nut drives the corresponding first sliding unit 4023 (first sliding table) to move backward along the first guide shaft 4024, and the first sliding table pulls the flexible pulling member 401 to move backward until the end of the first guide shaft 4024 away from the second support 802, and the end of the first guide shaft 4024 away from the second support 802 is provided with a first sensing switch 4026, and the first sensing member 4025 moves to the first sensing switch 4026 with the first sliding table, and the first sensing switch 4026 senses the first sensing member 4025 to start working, and stops the operation of the first lead screw stepper motor; During this process, the flexible pulling member 401 is only subjected to tension and will not be bent and deformed during movement. During this process, the radioactive source 10 is pulled by the flexible pulling member 401 to a position away from the irradiation area (shielding position) and located inside the shielding body 20, and during this process, the radioactive source 10 synchronously compresses the spring to accumulate elastic potential energy. In combination with Figure 2 and Figure 4 as shown.

[0116] When the deformable guide 301 needs to be pushed out, the second power unit 3031 (second lead screw stepper motor) in the taking and sending driving device is operated in the positive direction, driving the corresponding second transmission unit 3032 (second transmission nut) to move forward, and the second transmission nut drives the corresponding second sliding unit 3033 (second sliding table) to move forward along the second guide shaft 3034, and the second sliding table pushes the push-pull piece 302 to move forward until the end of the second guide shaft 3034 close to the second support 802, the end of the second guide shaft 3034 close to the second support 802 is provided with a third induction switch 3036, the second induction piece 3035 moves to the second induction switch 4027 with the second sliding table, the third induction switch 3036 senses the second induction piece 3035 to start working, and the operation of the second lead screw stepper motor is terminated; in this process, the push-pull piece 302 pushes the deformable guide (hose) to move forward along the second channel 502 of the manifold guide sleeve 50, and the adapter 3011 of the deformable guide is pushed out to the taking and sending initial position to facilitate taking 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 taking and sending driving device is operated in the positive direction, driving the corresponding second transmission nut to move backward, and the second transmission nut drives the corresponding second sliding table to move backward along the second guide shaft 3034, and the second sliding table pulls the push-pull piece 302 to move backward until the end of the second guide shaft 3034 away from the second support 802, the end of the second guide shaft 3034 away from the second support 802 is provided with a fourth induction switch 3037, the second induction piece 3035 moves to the fourth induction switch 3037 with the second sliding table, the fourth induction switch 3037 senses the second induction piece 3035 to start working, and the operation of the second lead screw stepper motor is terminated; in this process, the push-pull piece 302 pulls the deformable guide (hose) to move backward along the second channel 502 of the guide sleeve, and the adapter 3011 of the deformable guide is pulled back to the taking and sending target position, and at this time the object to be irradiated is also pulled back to the target position (position to be irradiated). Combined with Figure 1 and Figure 2 as shown.

[0118] When the radiation source 10 needs to be irradiated, the first power unit 4021 (first lead screw stepping motor) in the radiation source driving device 402 is operated in the positive direction, driving the corresponding first transmission nut to move forward, which in turn drives the corresponding first sliding table to move forward along the first guide shaft 4024, and the first sliding table drives the flexible traction member 401 (steel wire rope) to move forward until the end of the first guide shaft 4024 close to the second support 802, and the end of the first guide shaft 4024 close to the second support 802 is provided with a second induction switch 4027, and the first induction member 4025 moves to the second induction switch 4027 with the first sliding table, and the second induction switch 4027 senses the first induction member 4025 to start working, and terminates the operation of the first lead screw stepping motor; in this process, the first sliding table exerts a pushing force on the flexible traction member 401 (steel wire rope) (the steel wire rope is prone to bending deformation under the action of the pushing force), but at this time the elastic potential energy accumulated by the spring starts to be released, which exerts a reverse pulling force on the flexible traction member 401 (steel wire rope), keeping the flexible traction member 401 (steel wire rope) from bending and deforming in this process, and the flexible traction member 401 (steel wire rope) pushes the radiation source 10 away from the shielding body 20 to reach the predetermined irradiation position. In combination with Figure 1 and Figure 6 as shown.

[0119] The above description and drawings sufficiently illustrate embodiments of the present disclosure to enable one skilled in the art to practice them. Other embodiments can include structural and other changes. Embodiments are merely representative of possible variations. Individual components and functions are optional unless explicitly required, and the order of operations can be varied. Parts and features of some embodiments can be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures already described and shown in the drawings, and can be variously modified and changed without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims, and the above-described embodiments should be regarded as exemplary and non-limiting.

Claims

1. An integrated take-and-deliver radioactive source control device comprising a radioactive source; characterized in that, Also comprising: a shielding body for shielding the radiation of the radioactive source; a taking and delivering push-pull assembly comprising a deformable guide, a push-pull member and a push-pull driving device connected in sequence; a radioactive source driving assembly comprising a flexible traction member and a radioactive source driving device, one end of the flexible traction member being connected with the radioactive source and the other end being connected with the radioactive source driving device; a guide structure provided with at least two partially overlapped guide channels, the two guide channels being respectively provided for the flexible traction member and the push-pull member to pass through, so as to guide the movement trajectories of the two; wherein the radioactive source driving device can drive the flexible traction member to move along the corresponding guide channel, thereby driving the radioactive 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 member to move along the corresponding guide channel, thereby driving the deformable guide to move to take and deliver the article to be irradiated.

2. The radioactive source control device with integrated taking and delivering function according to claim 1, wherein the guide structure is a manifold guide sleeve, and the two guide channels of the manifold guide sleeve comprise: a first channel for the flexible traction member to pass through; a second channel for the push-pull member and the deformable guide to pass through; wherein the first channel is a curved bypass channel, and the second channel is a straight main pipe channel. Also comprising:

3. The integrated retrieved radioactive source control device of claim 2, wherein, a limiting structure provided on the manifold guide sleeve; an elastic member sleeved on the flexible traction member, one end of the elastic member being in abutment with the radioactive source and the other end being in abutment with the limiting structure; when the radioactive source is located at the shielding position inside the shielding body, the elastic member is in a compressed state and accumulates elastic potential energy; when the radioactive source moves to the irradiation position outside the shielding body, the elastic member releases the elastic potential energy to apply a reverse pulling force, so as to assist the flexible traction member to maintain a straight line state.

4. The radioactive source control device with integrated taking and delivering function according to claim 3, wherein the push-pull member is provided with an avoiding slot extending along the length direction thereof, at least part of the limiting structure extends into the avoiding slot, and the length of the avoiding slot is greater than or equal to the maximum movement stroke of the push-pull member, so as to prevent the push-pull member from interfering with the limiting structure during movement.

5. The radioactive source control device with integrated taking and delivering function according to claim 4, wherein the limiting structure can be a stop block, the stop block is configured with a through hole for the manifold guide sleeve, the push-pull member and the steel wire rope to pass through; wherein a boss is protruded inwardly from the inner wall of the through hole, the boss extends into the avoiding slot of the push-pull member and is in abutment with the elastic member.

6. The radioactive source control device with integrated taking and delivering function according to claim 1, wherein an adapter is connected to the end of the deformable guide away from the push-pull member, for detachably connecting a sample tray or a mechanical claw to carry the article to be irradiated.

7. The radioactive source control device with integrated taking and delivering function according to any one of claims 1 to 6, wherein the radioactive source driving device and the push-pull driving device each comprise 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 radioactive source driving device is fixedly connected with the end of the flexible traction member away from the radioactive source; and the sliding unit of the push-pull driving device is fixedly connected with the end of the push-pull member away from the deformable guide. Also comprising: ​ ​ ​ ​ 8. The integrated retrieved radioactive source control device of claim 7, wherein, ​ The common frame assembly, the radioactive source driving device, the push-pull driving device and the guide structure are 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 in sliding cooperation with the guide shaft to guide and limit the movement of the sliding unit.

9. The integrated retrieved radioactive source control device of claim 8, wherein, The radioactive source driving device and the push-pull driving device further comprise: The position sensing unit comprises a sensing piece and at least two sensing switches. The sensing piece is fixed on the sliding unit, and the sensing switches are fixed on the common frame assembly in intervals along the moving direction of the sliding unit. The sensing switches are electrically connected with the power unit to control the start and stop of the power unit through the cooperation of the sensing piece and the sensing switches.

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

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