Radiation inspection equipment

Abstract

The invention provides radiation inspection equipment. The radiation inspection equipment comprises a mounting seat; a support frame; the connecting rod, the supporting frame and the mounting base jointly define a scanning channel used for passing of an inspected object, the first end of the connecting rod is rotatably connected with the mounting base, and the second end of the connecting rod is rotatably connected with the supporting frame; the scanning device is mounted on the supporting frame and comprises a radiation source and a detection device, and the scanning device is configured to perform radiation inspection on the inspected object passing through the scanning channel; the connecting rod is configured to drive the supporting frame to move relative to the mounting base so as to change the size of the scanning channel and the scanning range of the scanning device. The radiation inspection device can enlarge the range of the inspected object.

Description

Technical Field

[0001] The present application relates to the technical field of radiation inspection, and in particular to a radiation inspection device. Background Art

[0002] Radiation inspection equipment can be used for rapid scanning and inspection of goods / vehicles, and can meet the needs of ports, customs and other places for rapid inspection of bulk cargo transportation without stopping. It can provide high-resolution scanning images based on material composition information. Inspectors can effectively and quickly check for smuggled goods and various contraband hidden in the goods without stopping or unpacking.

[0003] The radiation inspection equipment of the related technology has a door-shaped scanning channel, and the passing size (width × height) of the scanning channel is usually determined by the maximum size of the cargo that the customer needs to detect. The target height of the radiation source, such as the X-ray emission source, is consistent with the height of the upper surface of the chassis of a standard container vehicle, and the height cannot be changed. The ray angle of the ray beam emitted by the radiation source is based on the maximum cross-section of the cargo passing through the channel, and it is fixed and unchanged.

[0004] For vehicles with higher chassis, such as AGV container vehicles, the target height of the radiation source is lower than the upper surface of the vehicle. The rays at the bottom of the beam first pass through the chassis and then through the container. In the resulting image, the chassis covers the information of the lower part of the container, affecting the accuracy of the inspection results of the lower part of the container.

[0005] For small bulk cargo trucks with a low chassis, there will be more cargo information under the vehicle chassis that is not covered by the detection range of the radiation beam, affecting the accuracy of the inspection results of the cargo under the vehicle.

[0006] For goods / vehicles that cannot pass through equipment inspection due to being too wide or too high, other methods of inspection must be adopted, which affects the inspection efficiency.

[0007] The above statements are only used to provide background technical information related to the present application and do not necessarily constitute related art. Summary of the invention

[0008] The purpose of the present application is to provide a radiation inspection device, aiming to expand the range of objects to be inspected.

[0009] The present application provides a radiation inspection device, comprising: a mounting seat; a support frame; a connecting rod, which together with the support frame and the mounting seat defines a scanning channel for an inspected object to pass through, the first end of the connecting rod being rotatably connected to the mounting seat, and the second end of the connecting rod being rotatably connected to the support frame; and a scanning device, which is installed on the support frame and comprises a radiation source and a detection device, and the scanning device is configured to perform radiation inspection on the inspected object passing through the scanning channel; wherein the connecting rod is configured to drive the support frame to move relative to the mounting seat to change the size of the scanning channel and the scanning range of the scanning device.

[0010] In the radiation inspection equipment of some embodiments, the radiation source and the detection device are relatively fixed.

[0011] In some embodiments of the radiation inspection device, the connecting rod rotates relative to the mounting base around a first axis parallel to the scanning channel; and / or the connecting rod rotates relative to the support frame around a second axis parallel to the scanning channel.

[0012] In some embodiments of the radiation inspection device, the radiation inspection device includes a plurality of the connecting rods; and / or the connecting rod is a rigid rod or a folding rod or a telescopic rod whose length can be fixed after being extended or retracted.

[0013] In some embodiments of the radiation inspection device, the radiation inspection device further includes a driving device, which is drivingly connected to the connecting rod and is configured to drive the connecting rod to move so as to drive the support frame to move relative to the mounting seat.

[0014] In some embodiments of the radiation inspection equipment, the radiation inspection equipment also includes: an information acquisition device, configured to acquire information of the inspected object; and a control device, coupled to the information acquisition device and the driving device, and configured to control the action of the driving device according to the information of the inspected object acquired by the information acquisition device.

[0015] In some embodiments of the radiation inspection equipment, the first end of the connecting rod and the first relative rotation position of the mounting seat are variably set relative to the mounting seat; and / or the second end of the connecting rod and the second relative rotation position of the support frame are variably set relative to the support frame.

[0016] In some embodiments of the radiation inspection equipment, the mounting base includes a cabin having a storage space; the radiation source is located in the storage space, and a shelter is provided on the cabin wall to provide a movement space for the support frame.

[0017] In some embodiments of the radiation inspection equipment, the first relative rotation part is movable in a horizontal plane relative to the mounting base; and / or the second relative rotation part is movable in a horizontal plane relative to the support frame; and / or the first relative rotation part is movable relative to the mounting base along a direction perpendicular to the extension direction of the scanning channel; and / or the second relative rotation part is movable relative to the support frame along a direction perpendicular to the extension direction of the scanning channel.

[0018] In some embodiments of the radiation inspection device, the radiation inspection device also includes a slide, the first end of the connecting rod is rotatably connected to the slide, and the slide is installed on the mounting seat so that the position of the first relative rotation part relative to the mounting seat is variable.

[0019] In some embodiments of the radiation inspection equipment, the radiation inspection equipment also includes a driving device, which is drivingly connected to the connecting rod and is configured to drive the connecting rod to move so as to drive the support frame to move relative to the mounting seat. The driving device includes: a first driving unit, configured to drive the connecting rod to rotate relative to the mounting seat and the support frame; and a second driving unit, configured to drive the first relatively rotating part to move relative to the mounting seat and / or drive the second relatively rotating part to move relative to the support frame.

[0020] In some embodiments of the radiation inspection equipment, the support frame includes: a crossbeam; a first side arm, the upper end of the first side arm is fixedly connected to the first end of the crossbeam, and the radiation source is installed at the lower end of the first side arm; and a second side arm, the upper end of the second side arm is fixedly connected to the second end of the crossbeam, the second side arm is away from the mounting seat relative to the first side arm, and the detection device is installed on the crossbeam and / or the second side arm.

[0021] In some embodiments of the radiation inspection equipment, the length of the second side arm is adjustable so that the bottom end of the second side arm and the bottom end of the mounting seat can be adjusted to keep a constant height difference before and after the support frame moves relative to the mounting seat.

[0022] In some embodiments of the radiation inspection equipment, the second side arm includes: a first arm segment, the upper end of the first arm segment is connected to the crossbeam, and the detection device includes a first detection part arranged on the first arm segment; and a second arm segment, the upper end of the second arm segment is telescopically connected to the lower end of the first arm segment.

[0023] In some embodiments of the radiation inspection device, the radiation inspection device also includes a locking mechanism, which has a locked state and an unlocked state. In the locked state, the position of the first arm segment relative to the second arm segment is fixed, and in the unlocked state, the position of the first arm segment relative to the second arm segment is variable.

[0024] In some embodiments of the radiation inspection device, the second side arm further includes a roller, which is disposed below the second arm segment and is rotatably disposed relative to the second arm segment.

[0025] In some embodiments of the radiation inspection equipment, along the extension direction of the beam, the first side arm gradually tilts from its upper end to its lower end in a direction away from the second side arm to form an angle with the vertical direction; and / or the second side arm is vertically arranged.

[0026] In some embodiments of the radiation inspection equipment, the detection device includes: a first detection part, which is arranged on the second side arm; and / or a second detection part, which is arranged on the crossbeam.

[0027] In the radiation inspection device of some embodiments, the second end of the connecting rod is rotatably connected to the first end of the beam.

[0028] In some embodiments of the radiation inspection equipment, the connecting rod rotates relative to the mounting base around a first axis perpendicular to the extension direction of the beam; and / or the connecting rod rotates relative to the support frame around a second axis perpendicular to the extension direction of the beam; and / or the first relative rotation portion is movable relative to the mounting base along the extension direction of the beam; and / or the second relative rotation portion is movable relative to the support frame along the extension direction of the beam.

[0029] Based on the radiation inspection equipment provided by the present application, since the connecting rod is rotatably connected to the mounting seat and the support frame respectively, the connecting rod can drive the support frame to move relative to the mounting seat to change the size of the scanning channel and the scanning range of the scanning device, so that the scanning channel can adapt to more specifications of objects to be inspected so that they can pass through the scanning channel and the scanning device can completely scan the objects to be inspected, thereby expanding the range of the objects to be inspected. Furthermore, it is also beneficial to improve the accuracy of the inspection results of some special parts of the inspected object, such as those close to the chassis. In addition, there is no need to take other methods to inspect objects of special sizes, and radiation inspection can be completed directly through the radiation inspection equipment, thereby improving the inspection efficiency.

[0030] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0032] Figure 1 This is a schematic diagram of the structure of the radiation inspection equipment according to an embodiment of the present application.

[0033] Figure 2 for Figure 1 Schematic diagram of the top view structure.

[0034] Figure 3 and Figure 4 for Figure 1 The scanning channel of the radiation inspection device shown is a schematic structural diagram of one size, in which a radiation inspection can be performed on an inspection object without a chassis or on an inspection object with an extra-wide width and a low height.

[0035] Figure 5 for Figure 1 The scanning channel of the radiation inspection device shown is a schematic structural diagram of another size, at which a radiation inspection of an ultra-high object to be inspected can be performed.

[0036] Figure 6 for Figure 1 The scanning channel of the radiation inspection device shown is a schematic structural diagram of another size, in which radiation inspection can be performed on ultra-high and ultra-wide objects to be inspected.

[0037] Figure 7 for Figure 1 The control principle diagram of the radiation inspection equipment for controlling the size change of the scanning channel is shown.

[0038] Figure 8 for Figure 1 A schematic diagram of the partial structure of a support frame of an alternative embodiment of a radiation inspection device is shown.

[0039] Figures 1 to 8 In the figure, each reference numeral represents:

[0040] 10. Mounting seat; 11. Cabin body; 111. Bulkhead; 11A. Accommodation space; 11B. Avoidance opening;

[0041] 20. Support frame; 21. Cross arm; 22. First side arm; 23. Second side arm; 231. First arm section; 232. Second arm section; 233. Locking mechanism; 234. Roller;

[0042] 30. Scanning device; 31. Radiation source; 31A. Target; B. Radiation beam; 32. Detection device; 321. First detection unit; 322. Second detection unit;

[0043] 40. Control device;

[0044] 50. Connecting rod; H1. First relative rotation part; H2. Second relative rotation part;

[0045] 60. Slide;

[0046] P, scanning channel;

[0047] 70. driving device; 71. first driving unit; 72. second driving unit;

[0048] 80. Information acquisition device; 81. First detection unit; 82. Second detection unit;

[0049] O, inspected object; SH, extra-high part; SW, extra-wide part; C, vehicle chassis; CS, upper surface of vehicle chassis; DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0051] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0052] In the description of the present application, it should be understood that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present application.

[0053] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0054] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0055] like Figures 1 to 8 As shown, an embodiment of the present application provides a radiation inspection device, which mainly includes a mounting seat 10 , a support frame 20 , a connecting rod 50 and a scanning device 30 .

[0056] The connecting rod 50 , the support frame 20 and the mounting seat 10 together define a scanning channel P for the inspected object O to pass through. A first end of the connecting rod 50 is rotatably connected to the mounting seat 10 . A second end of the connecting rod 50 is rotatably connected to the support frame 20 .

[0057] The scanning device 30 is mounted on the support frame 20, and includes a radiation source 31 and a detection device 32. The scanning device 30 is configured to perform radiation inspection on the object O passing through the scanning channel P.

[0058] The connecting rod 50 is configured to drive the support frame 20 to move relative to the mounting base 10 to change the size of the scanning channel P and the scanning range of the scanning device 30 .

[0059] According to the radiation inspection device of the embodiment of the present application, since the connecting rod 50 is rotatably connected to the mounting seat 10 and the support frame 20, respectively, the connecting rod 50 can drive the support frame 20 to move relative to the mounting seat 10 to change the size of the scanning channel P and the scanning range of the scanning device 30, so that the scanning channel P can adapt to more specifications of the inspected objects O to pass through the scanning channel P and the scanning device 30 can completely scan the inspected objects O, thereby expanding the range of the inspected objects O. Further, it is also beneficial to improve the accuracy of the inspection results of some special parts of the inspected object O, such as those close to the chassis. In addition, it is possible to directly complete the radiation inspection through the radiation inspection device without taking other methods to inspect the inspected objects O of special sizes, thereby improving the inspection efficiency. For example, the radiation inspection device of the embodiment of the present application is beneficial to obtain higher inspection results accuracy and inspection efficiency for ultra-high inspected objects O, ultra-wide inspected objects O, ultra-high and ultra-wide inspected objects O, and ultra-low chassis inspected objects O within a certain size range.

[0060] The ray source 31 is, for example, an X-ray source, a gamma ray source, etc. The X-ray source is, for example, an accelerator or an X-ray tube. The detection device 32 may include detectors of various forms, such as a gas detector, a semiconductor detector, a scintillation detector, etc.

[0061] exist Figures 1 to 6 In the illustrated embodiment, the mounting base 10 is disposed on the ground G. In an embodiment not shown in the figure, the mounting base 10 may be disposed on another fixed or movable substrate, such as a chassis of a radiation inspection vehicle.

[0062] The mounting base 10 can be, for example, a solid pedestal, a cabin with a receiving space, a beam, a column, a frame, or other structure that can support the deformation of the support frame 20 .

[0063] The connection described in the embodiments of the present application, unless otherwise limited, may be a direct connection between two interconnected components, or an indirect connection through other components.

[0064] like Figures 1 to 6 As shown, in some embodiments of the radiation inspection equipment, the radiation source 31 and the detection device 32 are relatively fixed.

[0065] The ray source 31 and the detection device 32 are relatively fixed, and will not change their relative positions following the movement of the support frame 20 relative to the mounting base 10. This is advantageous in that there is no need to debug the positions of the ray source 31 and the detection device 32 of the scanning device 30 before and after the size of the scanning channel P changes, thereby facilitating the rapid start of scanning inspection after the size of the scanning channel P changes, thereby helping to improve inspection efficiency.

[0066] like Figures 1 to 6As shown, in some embodiments of the radiation inspection equipment, the connecting rod 50 rotates relative to the mounting base 10 around a first axis parallel to the scanning channel P; and / or the connecting rod 50 rotates around a second axis parallel to the scanning channel P relative to the support frame 20.

[0067] According to the above arrangement, by rotating the connecting rod 50 relative to the mounting base 10 and / or the support frame 20, it is advantageous to quickly and accurately adjust the width and / or height of the scanning channel P, so that the scanning channel P can be quickly adjusted to a size suitable for the passage of the inspected object O and to achieve accurate scanning.

[0068] like Figures 1 to 6 As shown, in some embodiments of the radiation inspection device, the radiation inspection device includes a plurality of connecting rods 50; and / or the connecting rod 50 is a rigid rod or a folding rod or a telescopic rod whose length can be fixed after being extended. Wherein, when the radiation inspection device includes a plurality of connecting rods 50, the plurality of connecting rods are preferably arranged in parallel.

[0069] The radiation inspection device includes a plurality of connecting rods 50, for example, the connecting rods 50 limit the freedom of movement of the support frame 20 relative to the mounting base 10, so that the scanning channel P can quickly and accurately complete the size adjustment to adapt to the size of the scanning channel P required by the inspected object O. The number of the plurality of parallel connecting rods 50 is, for example, 2, 3, 4 or more.

[0070] like Figures 1 to 6 As shown, in the radiation inspection device of some embodiments, the connecting rod 50 is a rigid rod. Figures 1 to 6 In the illustrated embodiment, the connecting rod is a straight rod. In an embodiment not illustrated, the connecting rod may also be configured as a curved rod or a bent rod according to different requirements, such as avoiding or providing installation space for the driving device.

[0071] In an embodiment not shown in the figure, the connecting rod 50 may also be a folding rod or a telescopic rod whose rod length can be fixed after being extended. By setting the connecting rod 50 as a folding rod or a telescopic rod whose rod length can be fixed after being extended, it is convenient to adjust the size of the scanning channel P within a larger range, so that it can adapt to more special sizes of the inspected objects O. In the case where the connecting rod is a folding rod or a telescopic rod whose rod length can be fixed after being extended, the number of connecting rods may also be multiple, such as 2, 3 or 4 or more. In the case where multiple folding rods are included, the multiple folding rods can be folded synchronously or asynchronously, and the multiple folding rods can change the same angle or different angles before and after each folding rod is folded. The folding rod may include two foldable rod sections, or may include 3 or more foldable rod sections. In the case where multiple telescopic rods are included, the multiple telescopic rods can be extended synchronously and fixed after being extended, or can be extended asynchronously and fixed after being extended, and the multiple telescopic rods can be extended by the same length or different lengths before and after each telescopic rod is extended. The telescopic rod may include two telescopic rod sections, or may include 3 or more telescopic rod sections.

[0072] When the radiation inspection equipment includes multiple connecting rods, the types of the connecting rods can be the same or different. For example, while satisfying the relative movement required for adjustment, the multiple connecting rods can include rigid rods of different shapes. The multiple connecting rods can also simultaneously include at least two of a rigid rod, a folding rod, and a telescopic rod whose length can be fixed after extension.

[0073] like Figure 7 As shown, in some embodiments of the radiation inspection equipment, the radiation inspection equipment also includes a driving device 70, which is drivingly connected to the connecting rod 50 and is configured to drive the connecting rod 50 to move so as to drive the support frame 20 to move relative to the mounting seat 10.

[0074] The driving device 70 is provided to drive the connecting rod 50 to move so that the support frame 20 can move relative to the mounting seat 10, thereby adjusting the size of the scanning channel P, which is conducive to automatic adjustment of the size of the scanning channel P.

[0075] The driving device may include an electric, pneumatic, or hydraulic actuator, such as a rotary motor, a linear motor, a cylinder, a hydraulic cylinder, etc., and may also include a transmission device arranged between the actuator and the connecting rod 50. The transmission device may include, for example, a gear and rack transmission mechanism, a cam lifter transmission mechanism, a worm gear transmission mechanism, a gear transmission mechanism, etc.

[0076] like Figure 7As shown, in some embodiments of the radiation inspection device, the radiation inspection device further includes an information acquisition device 80 and a control device 40. The information acquisition device 80 is configured to acquire information of the inspected object O. The control device 40 is coupled to the information acquisition device 80 and the drive device 70, and is configured to control the drive device 70 to act according to the information of the inspected object O acquired by the information acquisition device 80.

[0077] Based on the information of the inspected object O acquired by the information acquisition device 80, the size adjustment requirements of the scanning channel P and the scanning range adjustment requirements of the scanning device 30 can be known, so that the action of the driving device 70 is controlled according to the information of the inspected object O, which is conducive to quickly and accurately obtaining the appropriate size of the scanning channel P that is suitable for radiation inspection of the current inspected object O.

[0078] The information acquisition device 80 may be, for example, an input device or a scanning device for acquiring the model of the inspected object O, or a sensor for acquiring the size of the inspected object O. Figure 7 In the illustrated embodiment, the information acquisition device 80 may include a first detection unit 81 and a second detection unit 82 for respectively detecting height information and width information of the inspected object O. The information of the inspected object O includes the height information and width information of the inspected object O. The first detection unit 81 and the second detection unit 82 may be length sensors, such as laser scanning length measurement sensors.

[0079] like Figures 1 to 6 As shown, in some embodiments of the radiation inspection equipment, the first end of the connecting rod 50 and the first relative rotation position H1 of the mounting base 10 are variably set relative to the mounting base 10; and / or the second end of the connecting rod 50 and the second relative rotation position H2 of the support frame 20 are variably set relative to the support frame 20.

[0080] The above arrangement enables the support frame 20 to have a larger range of motion relative to the mounting base 10, so that the size of the scanning channel and the scanning range of the scanning device can be adjusted within a larger range, thereby being able to adapt to the size of the inspected object O and its scanning requirements within a larger range.

[0081] In the embodiment of the present application, the first relative rotation part H1 of the first end of the connecting rod 50 and the mounting seat 10 refers to the part where the two rotate relative to each other, for example: the first relative rotation part H1 can be the direct connection part between the connecting rod 50 and the mounting seat 10; the first relative rotation part H1 can also be the part where either the connecting rod 50 or the mounting seat 10 is connected to the intermediate transition component, and the intermediate transition component is arranged on the other one of the connecting rod 50 and the mounting seat 10; it can also be that the connecting rod 50 and the mounting seat 10 are each connected through an intermediate transition component, and the first relative rotation part H1 is the part where the two intermediate transition components are connected, etc. See Figures 1 to 6 In some embodiments of the present application, the first relative rotation position H1 is arranged at the hinge position of the connecting rod 50 and the slide 60 connected to the mounting seat 10. Similarly, the second relative rotation position H2 between the second end of the connecting rod 50 and the support frame 20 refers to the position where the connecting rod 50 and the support frame 20 rotate relative to each other. For example: the second relative rotation position H2 can be the direct connection position between the connecting rod 50 and the support frame 20; the second relative rotation position H2 can also be the position where either the connecting rod 50 or the support frame 20 is connected to the intermediate transition component, and the intermediate transition component is arranged on the other one of the support frames 20; it can also be that the connecting rod 50 and the support frame 20 are each connected by an intermediate transition component, and the second relative rotation position H2 is the position where the two intermediate transition components are connected, and so on. See. Figures 1 to 6 In some embodiments of the present application, the second relative rotation position H2 is set at the hinge position between the connecting rod 50 and the support frame 20.

[0082] exist Figures 1 to 8 In the illustrated embodiment, the first end of the connecting rod 50 is rotatably connected to the mounting base 10, the second end of the connecting rod 50 is rotatably connected to the support frame 20, and the first end of the connecting rod 50 and the first relative rotation position H1 of the mounting base 10 are variably arranged relative to the mounting base 10.

[0083] In an embodiment not shown in the figure, the first end of the connecting rod 50 can be rotatably connected to the mounting base 10, the second end of the connecting rod 50 can be rotatably connected to the support frame 20, and the second end of the connecting rod 50 and the second relative rotation position H2 of the support frame 20 are variably arranged relative to the support frame 20.

[0084] Alternatively, in another embodiment not shown in the figure, the first end of the connecting rod 50 may be rotatably connected to the mounting seat 10, the second end of the connecting rod 50 may be rotatably connected to the support frame 20, and the first end of the connecting rod 50 and the first relative rotation position H1 of the mounting seat 10 may be variably set relative to the mounting seat 10, and the second end of the connecting rod 50 and the second relative rotation position H2 of the support frame 20 may be variably set relative to the support frame 20.

[0085] like Figures 1 to 6 As shown, in some embodiments of the radiation inspection device, the mounting base 10 includes a cabin 11. The cabin 11 has a receiving space 11A. The radiation source 31 is located in the receiving space 11A. A shelter 11B is provided on the cabin wall 111 of the cabin 11 to provide a space for the support frame 20 to move.

[0086] The mounting seat 10 includes a cabin 11, and the radiation source 31 is located in the accommodating space 11A of the cabin 11. On the one hand, the radiation source 31 can be mechanically protected when the position of the connecting rod 50 and the support frame 20 relative to the mounting seat 10 changes, which is conducive to preventing the radiation source 31 from being damaged by collision. On the other hand, the bulkhead 111 of the cabin 11 can have a shielding function to form radiation protection for the radiation source. For example, a heavy metal plate can be set on the part of the bulkhead 111 that needs to be protected, such as on the side wall of the cabin 11. A heavy metal protective layer can be added to the bulkhead 111 with a shielding function, and the bulkhead can also be made of heavy metal.

[0087] An escape opening 11B is provided on the wall 111 of the cabin 11 to provide a movement space for the support frame 20 , thereby preventing the support frame 20 from interfering with the cabin 11 when moving relative to the cabin 11 , so that the size of the scanning channel P can be smoothly adjusted.

[0088] like Figures 1 to 6 As shown, in some embodiments of the radiation inspection equipment, the radiation inspection equipment also includes a slide 60, the first end of the connecting rod 50 is rotatably connected to the slide 60, and the slide 60 is installed on the mounting base 10 so that the position of the first relative rotation part H1 relative to the mounting base 10 is variable.

[0089] By additionally arranging a slide 60 on the mounting seat 10 and realizing variable position of the first relative rotation part H1 relative to the mounting seat 10 through the slide 60, it is easy to realize and the motion controllability of the first relative rotation part H1 relative to the mounting seat 10 is good, which is conducive to quickly and accurately changing the position of the first relative rotation part H1 relative to the mounting seat 10 according to the size requirements of the scanning channel P. Figures 1 to 6 In the illustrated embodiment, the first relative rotation portion H1 is disposed at a hinged portion between the connecting rod 50 and the slide 60. The slide 60 may be, for example, a linear slide, a cross slide, or the like.

[0090] like Figures 1 to 6 As shown, in the radiation inspection device of some embodiments, the slide table 60 is located on the top of the mounting base 10 .

[0091] Because the slide 60 is located on the top of the mounting base 10, the first end of the connecting rod 50 is less subject to interference when following the movement of the slide 60, thereby having a larger range of motion, which is conducive to adjusting the scanning channel P within a larger size range.

[0092] like Figures 1 to 6As shown, in some embodiments of the radiation inspection equipment, the first relative rotation part H1 is movable in a horizontal plane relative to the mounting base 10; and / or the second relative rotation part H2 is movable in a horizontal plane relative to the support frame 20; and / or the first relative rotation part H1 is movable relative to the mounting base 10 in a direction perpendicular to the extension direction of the scanning channel P; and / or the second relative rotation part H2 is movable relative to the support frame 20 in a direction perpendicular to the extension direction of the scanning channel P.

[0093] The above arrangement is conducive to quickly and accurately adjusting the width and / or height of the scanning channel P, so that the scanning channel P can be quickly adjusted to a size suitable for the inspection object O to pass through and achieve accurate scanning.

[0094] exist Figures 1 to 6 In the illustrated embodiment, the first relative rotation portion H1 is movable relative to the mounting seat 10 on a horizontal plane via the slide 60. In an embodiment not shown, the first relative rotation portion H1 can be movable relative to the mounting seat 10 on a horizontal plane by directly setting a pin connected to the connecting rod 50 in a horizontally arranged slide groove of the mounting seat 10.

[0095] exist Figures 1 to 6 In the illustrated embodiment, the connecting rod 50 is hinged to the support frame 20, so that the position of the second relative rotation part H2 relative to the support frame 20 is unchanged in the horizontal plane. In an embodiment not shown in the figure, the second relative rotation part H2 can be moved in the horizontal plane relative to the support frame 20 by setting the hinge hole on the support frame 20 as a long strip hole extending in the horizontal direction, thereby facilitating the size adjustment of the scanning channel P.

[0096] like Figure 7 As shown, in some embodiments of the radiation inspection device, the radiation inspection device further includes a driving device 70, which is drivingly connected to the connecting rod 50 and is configured to drive the connecting rod 50 to move so as to drive the support frame 20 to move relative to the mounting seat 10. The driving device 70 includes a first driving part 71 and a second driving part 72. The first driving part 71 is configured to drive the connecting rod 50 to rotate relative to the mounting seat 10 and the support frame 20. The second driving part 72 is configured to drive the first relative rotation part H1 to move relative to the mounting seat 10 and / or drive the second relative rotation part H2 to move relative to the support frame 20.

[0097] The first driving part 71 and the second driving part 72 are respectively provided to control the rotation angle of the connecting rod 50 and the displacement of the first relative rotation part H1 relative to the mounting seat 10 and / or the displacement of the second relative rotation part H2 relative to the support frame 20, so that the connecting rod 50 can quickly change its position according to the size adjustment requirements of the scanning channel P. The first driving part 71 can be, for example, a combination of a cylinder, a hydraulic cylinder, a linear motor or a rotary motor and a transmission device connected between the connecting rod 50 and the slide 60. The second driving part 72 can be, for example, a combination of a cylinder, a hydraulic cylinder, a linear motor or a rotary motor and a transmission device connected between the mounting seat 10 and the slide 60.

[0098] like Figures 1 to 6 As shown, in some embodiments of the radiation inspection device, the support frame 20 includes a crossbeam 21, a first side arm 22, and a second side arm 23. The upper end of the first side arm 22 is fixedly connected to the first end of the crossbeam 21, and the radiation source 31 is installed at the lower end of the first side arm 22. The upper end of the second side arm 23 is fixedly connected to the second end of the crossbeam 21, the second side arm 23 is away from the mounting seat 10 relative to the first side arm 22, and the detection device 32 is installed on the crossbeam 21 and / or the second side arm 23.

[0099] In the above arrangement, the support frame 20 as a whole forms a frame structure with an open bottom, which facilitates the formation of the scanning channel P and the inspection object O to pass through the scanning channel P. It can also achieve that the relative positions of the radiation source 31 and the detection device 32 of the scanning device 30 remain unchanged, and will not change with the movement of the support frame 20 relative to the mounting base 10. This is beneficial before and after the size of the scanning channel P changes, and there is no need to debug the positions of the radiation source 31 and the detection device 32 of the scanning device 30, thereby facilitating the rapid start of scanning inspection after the size of the scanning channel P changes, thereby helping to improve the inspection efficiency.

[0100] like Figures 1 to 6 As shown, in some embodiments of the radiation inspection equipment, the length of the second side arm 23 is adjustable so that the bottom end of the second side arm 23 and the bottom end of the mounting base 10 can be adjusted to a constant height difference before and after the support frame 20 moves relative to the mounting base 10.

[0101] The structural setting of the above second side wall 23 is conducive to the size adjustment of the scanning channel P, and the end of the front and rear support frame 20 away from the mounting seat 10 can be stably supported. For example, the bottom end of the second side arm 23 can always be supported on the ground G or a support with a horizontal support surface.

[0102] like Figures 1 to 6As shown, in some embodiments of the radiation inspection device, the second side arm 23 includes a first arm segment 231 and a second arm segment 232. The upper end of the first arm segment 231 is connected to the crossbeam 21, and the detection device 32 includes a first detection part 321 disposed on the first arm segment 231. The upper end of the second arm segment 232 is telescopically connected to the lower end of the first arm segment 231.

[0103] By providing the first arm section 231 and the second arm section 232 which are telescopically connected, the length adjustment of the second side arm 23 can be conveniently achieved.

[0104] The second arm segment 232 may be configured as a sleeve with an opening at the top, and the lower end of the first arm segment 231 may extend into the sleeve; or the lower end of the first arm segment 231 may be configured as a sleeve with an opening at the bottom, and the upper end of the second arm segment 232 may extend into the sleeve.

[0105] like Figure 8 As shown, in some embodiments of the radiation inspection equipment, the second side arm 23 further includes a roller 234 , which is disposed below the second arm segment 232 and rotatably disposed relative to the second arm segment 232 .

[0106] The second side arm 23 also includes a roller 234, which facilitates the second side arm 23 to follow the connecting rod support frame 20 along the supporting surface at the bottom end of the second side wall 23, such as the ground G, when the support frame 20 moves relative to the mounting seat 10, thereby facilitating the quick and accurate adjustment of the size of the scanning channel P.

[0107] like Figures 1 to 6 As shown, in some embodiments of the radiation inspection equipment, the radiation inspection equipment also includes a locking mechanism 233, which has a locked state and an unlocked state. In the locked state, the position of the first arm segment 231 relative to the second arm segment 232 is fixed, and in the unlocked state, the position of the first arm segment 231 relative to the second arm segment 232 is variable.

[0108] The locking mechanism 233 is provided to improve the overall stability of the support frame 20 relative to the mounting base 10 after the size of the scanning channel P is adjusted.

[0109] like Figures 1 to 6 As shown, in some embodiments of the radiation inspection equipment, along the extension direction of the beam 21, the first side arm 22 gradually tilts from its upper end to the lower end in a direction away from the second side arm 23 to form an angle with the vertical direction; and / or the second side arm 23 is vertically arranged.

[0110] The first side arm 22 gradually tilts from its upper end to its lower end in a direction away from the second side arm 23 and forms an angle with the vertical direction, which is conducive to the scanning channel P changing its size with the movement of the connecting rod 50 and the support frame 20. The second side arm 23 is arranged vertically to form a more stable support for the support frame 20. When the detection device 32 is at least partially installed on the support frame 20, it is also conducive to the vertical arrangement of at least part of the detection device 32 on the second side arm 23, thereby facilitating the arrangement of the vertical detection array of the horizontal viewing angle of the scanning device.

[0111] like Figures 1 to 6 As shown, in some embodiments of the radiation inspection equipment, the detection device 32 includes: a first detection part 321 disposed on the second side arm 23; and / or a second detection part 322 disposed on the beam 21.

[0112] The above arrangement enables the scanning device 30 of the radiation inspection equipment to form a transmission scanning device for multi-position detection at a horizontal viewing angle.

[0113] like Figures 1 to 6 As shown, in some embodiments of the radiation inspection device, the second end of the connecting rod 50 is rotatably connected to the first end of the beam 21 .

[0114] The second end of the connecting rod 50 is rotatably connected to the first end of the beam 21 , and the support frame 20 can be driven by driving the beam 21 , so that the support frame 20 can move stably relative to the mounting seat 10 to change the size of the scanning channel P.

[0115] In an embodiment not shown in the figure, the second end of the connecting rod 50 may also be rotatably connected to the upper end of the second side arm 23 .

[0116] like Figures 1 to 6 As shown, in some embodiments of the radiation inspection equipment, the connecting rod 50 rotates relative to the mounting base 10 around a first axis perpendicular to the extension direction of the beam 21; and / or the connecting rod 50 rotates relative to the support frame 20 around a second axis perpendicular to the extension direction of the beam 21; and / or the first relative rotation position H1 is movable relative to the mounting base 10 along the extension direction of the beam 21; and / or the second relative rotation position H2 is movable relative to the support frame 20 along the extension direction of the beam 21.

[0117] In the above arrangement, the degree of freedom of the connecting rod 50 and the support frame 20 relative to the mounting seat 10 is reasonably set, which is conducive to the rapid and accurate adjustment of the size of the scanning channel P to meet the corresponding requirements of the inspected object O.

[0118] The following combination Figures 1 to 8 The radiation inspection device according to the embodiment of the present application is described in detail.

[0119] like Figures 1 to 7The radiation inspection device of some embodiments of the present application is shown. The radiation inspection device mainly includes a mounting seat 10, a support frame 20, a scanning device 30, a controller 40, two connecting rods 50, a slide 60, a driving device 70 and an information acquisition device 80. The connecting rod 50, the support frame 20 and the mounting seat 10 together define a scanning channel P for the object O to be inspected to pass through.

[0120] The mounting base 10 is fixedly disposed on the ground G and is formed in the form of a cabin 11. The cabin 11 has a storage space 11A. The radiation source 31 is located in the storage space 11A. A clearance opening 11B is provided on the bulkhead 111 of the cabin 11 to provide a movement space for the support frame 20. In the present embodiment, the cabin 11 is a square box structure. The top wall of the bulkhead 111 of the cabin 11 is horizontal. The clearance opening 11B is provided on the top wall of the cabin 11 and extends in a direction perpendicular to the extension direction of the scanning channel P. The bulkhead 111 includes a heavy metal plate to realize the shielding function of the bulkhead 111.

[0121] The support frame 20 as a whole forms a frame structure with an open bottom. The support frame 20 includes a crossbeam 21, a first side arm 22, and a second side arm 23. The crossbeam 21 is horizontally arranged and extends in a direction perpendicular to the extension direction of the scanning channel P. The upper end of the first side arm 22 is fixedly connected to the first end of the crossbeam 21. The upper end of the second side arm 23 is fixedly connected to the second end of the crossbeam 21, and the second side arm 23 is away from the mounting seat 10 relative to the first side arm 22.

[0122] Along the extension direction of the cross beam 21 , the first side arm 22 gradually inclines from the upper end to the lower end thereof in a direction away from the second side arm 23 and forms an angle with the vertical direction.

[0123] The second side arm 23 is vertically arranged. The length of the second side arm 23 is adjustable so that the bottom end of the second side arm 23 and the bottom end of the mounting seat 10 can be adjusted to a constant height difference before and after the support frame 20 moves relative to the mounting seat 10. Figures 1 to 7 In the illustrated embodiment, the bottom end of the second side arm 23 can be always supported on the ground G, so the height difference is 0.

[0124] The second side arm 23 includes a first arm section 231, a second arm section 232 and a locking mechanism 233. The upper end of the first arm section 231 is connected to the crossbeam 21. The upper end of the second arm section 232 is telescopically connected to the lower end of the first arm section 231. The second arm section 232 is configured as a sleeve with an open top, and the lower end of the first arm section 231 extends into the sleeve.

[0125] The locking mechanism 233 has a locked state and an unlocked state. In the locked state, the position of the first arm segment 231 relative to the second arm segment 232 is fixed, and in the unlocked state, the position of the first arm segment 231 relative to the second arm segment 232 is variable. In this example, the locking mechanism 233 includes a locking screw, which is screwed into a threaded hole on the side wall of the sleeve of the second arm segment 232. When the length of the second side arm 23 needs to be adjusted, the locking screw is loosened to allow the first arm segment 231 to move relative to the second arm segment 232 to adjust to the desired length. After the length of the second side arm 23 is adjusted, the locking screw is tightened so that the end of the locking screw is pressed against the side wall of the first arm segment 231, and the first arm segment 231 is fixed relative to the second arm segment 232.

[0126] The scanning device 30 is configured to perform radiation inspection on the inspected object O passing through the scanning channel P. The scanning device 30 is installed on the support frame 20, and includes a radiation source 31 and a detection device 32, and the radiation source 31 and the detection device 32 are relatively fixed. The radiation source 31 is installed at the lower end of the first side arm 22 and is located in the accommodating space 11A of the cabin 11. The radiation source 31 is an X-ray source, which is an accelerator in this embodiment. Its target 31A emits a radiation beam B toward the detection device 32. When the radiation inspection is performed on the inspected object O, the radiation beam B passes through the inspected object O and is detected by the detection device 32. The information detected by the detection device 32 can form a radiation scanning image of the inspected object O through an imaging device. The detection device 32 includes a first detection part 321 and a second detection part 322. In this embodiment, the first detection part 321 and the second detection part 322 both include a detection arm and a detector array installed in the detection arm, and the detector is a scintillation detector. The first detection portion 321 of the detection device 32 is disposed on the first arm section 231 of the second side arm 23 of the mounting frame 20 , and the second detection portion 322 is disposed on the crossbeam 21 of the mounting frame 20 .

[0127] Two connecting rods 50 are arranged in parallel and spaced apart. Each connecting rod is a rigid rod and a straight rod. The first end of each connecting rod 50 is rotatably connected to the slide 60 at the first relative rotation position H1 between the first end of the connecting rod 50 and the mounting seat 10. In the present embodiment, the connecting rod 50 rotates relative to the mounting seat 10 around a first axis perpendicular to the extension direction of the beam 21, that is, parallel to the extension direction of the scanning channel P. The second end of the connecting rod 50 is rotatably connected to the first end of the beam 21 of the support frame 20 at a second relative rotation position H2. In the present embodiment, the connecting rod 50 rotates relative to the support frame 20 around a second axis perpendicular to the extension direction of the beam 21, that is, parallel to the extension direction of the scanning channel P.

[0128] The driving device 70 is drivingly connected to the connecting rod 50, and is configured to drive the connecting rod 50 to move so as to drive the support frame 20 to move relative to the mounting seat 10. The driving device 70 includes a first driving part 71 and a second driving part 72. The first driving part 71 is configured to drive the connecting rod 50 to rotate relative to the mounting seat 10 and the support frame 20. The first driving part 71 is a first hydraulic cylinder connected between the slide 60 and the connecting rod 50 or between the support frame 20 and the connecting rod 50. The second driving part 72 is configured to drive the first relative rotation part H1 to move relative to the mounting seat 10. The second driving part 72 is a second hydraulic cylinder connected between the slide 60 and the cabin 11.

[0129] In this embodiment, the slide 60 is mounted on the top wall of the cabin 11. The slide 60 is a linear slide. The slide 60 can be driven by the second driving part 72 of the driving device 70 to reciprocate in a horizontal plane along a direction perpendicular to the extension direction of the scanning channel P, that is, along the extension direction of the beam 21. Since the slide 60 is mounted on the mounting seat 10 and can slide along the cabin 11, the position of the first end of the connecting rod 50 and the first relative rotation part H1 of the mounting seat 10 relative to the mounting seat 10 can be changed.

[0130] The connecting rod 50 can be driven by the first driving part 71 of the driving device 70 to rotate relative to the mounting seat 10 and the support frame 20. The movement of the connecting rod 50 can drive the support frame 20 to move relative to the mounting seat 10 to change the size of the scanning channel P. The radiation source 31 moves with the movement of the support frame 20 and its first side arm 22, and the radiation beam B emitted by its target 31A changes with the movement of the support frame 20 and its first side arm 22. The detection device 32 is fixed relative to the radiation source 31, so that the corresponding radiation information can always be received. Therefore, the size of the scanning channel P is adapted to the position change of the radiation source 30, the radiation beam 31 emitted by it, and the detection device 32, and radiation inspection can be performed on the inspected objects O of different sizes.

[0131] The information acquisition device 80 includes a first detection unit 81 and a second detection unit 82. The first detection unit 81 is used to detect the height information of the object O under inspection, and the second detection unit 82 is used to detect the width information of the object O under inspection.

[0132] The control device 40 is coupled to the information acquisition device 80 and the driving device 70 , and is configured to control the operation of the driving device 70 according to the height information and width information of the inspected object O detected by the information acquisition device 80 .

[0133] The controller 40 is signal-connected to the first detection unit 81 and the second detection unit 82 of the information acquisition device 80, and is also signal-connected to the first driving unit 71 and the second driving unit 72 of the driving device 70, thereby controlling the actions of the first driving unit 71 and the second driving unit 72 according to the height information detected by the first detection unit 81 and the width information detected by the second detection unit 82, thereby controlling the size of the scanning channel P to change by changing the position of the connecting rod 50 and the support frame 20 relative to the mounting seat 10.

[0134] The control device 40 of the embodiment of the present application can be implemented as a general-purpose processor, a programmable logic controller (PLC), a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components or any appropriate combination thereof for performing the functions described in the present disclosure.

[0135] In this embodiment, two connecting rods 50, a slide 60 and a cross beam 21 form a parallelogram linkage. The slide 60 is mounted on the upper surface of the cabin 11 and reciprocates in the horizontal plane along the extension direction of the cross beam 21. When the parallelogram linkage swings within a certain range, the extension direction of the cross beam 21 can always be parallel to the upper surface of the cabin 1.

[0136] The auxiliary electrical equipment of the radiation inspection equipment can be arranged and installed in the accommodation space 11B of the cabin 11. Part of the power distribution and control circuits can be set in the support frame 20 or the connecting rod 50, and the detectors, sensors, etc. of the detection device 32 are electrically interconnected with the auxiliary electrical equipment in the cabin 11.

[0137] Figure 8 Shows Figures 1 to 7 An alternative embodiment of the invention, in which the radiation inspection device of the embodiment is Figures 1 to 7 The difference is that the second side arm 23 also includes a roller 234, which is disposed below the second arm section 232 and is rotatably disposed relative to the second arm section 232. In this embodiment, it is also possible to adjust the bottom end of the second side arm 23 and the bottom end of the mounting seat 10 to a constant height difference before and after the support frame 20 moves relative to the mounting seat 10, wherein the height difference is the height difference between the bottom end of the second arm section 232 and the bottom edge of the roller. Figure 8 The parts not described in the corresponding embodiments can be referred to Figures 1 to 7Description of the illustrated embodiment.

[0138] During installation and debugging of the radiation inspection equipment of the embodiment of the present application, the crossbeam 21 of the support frame 20, the first side arm 22, the first arm segment 231 of the second side arm 23, the accelerator as the radiation source 31, the first detection part 321 and the second detection part 322 of the detection device 32 are connected as a whole, and driven by the two connecting rods 50, they move together relative to the cabin body 11, and the scanning height of the scanning device 30 is changed while the size of the scanning channel P is changed. Since the relative position of the target 31A and the detection device 32 remains unchanged, the beam planes of the radiation source 31 and the detection device 32 can be made coplanar without adjustment.

[0139] The following combination Figures 3 to 6 The working principle of the radiation inspection device according to the embodiment of the present application is explained.

[0140] like Figure 3 and Figure 4 As shown, the slide 60 moves to the left end of the cabin 11 away from the second side arm 23, and the connecting rod 50 tilts from bottom to top toward the second side arm 23 and the angle with the horizontal plane is relatively small, so that the height of the scanning channel P is at a low position and the width is relatively wide. At the same time, the radiation source 31 of the scanning device 30 is at a low position, and the target point 31A of the radiation source 31 and the radiation beam B it emits and the detection device 32 are also at a low position. At this time, the radiation inspection equipment is as follows Figure 3 The following figure is suitable for inspecting the object O without chassis or with very low chassis or with moderate height of chassis to be scanned and inspected, or as shown in Figure 4 The method shown is suitable for inspecting an object O without a chassis or with an extremely low chassis or with a chassis that needs to be scanned and inspected and that is relatively low in height and extremely wide.

[0141] like Figure 5 As shown, the slide 60 moves to the right end of the cabin 11 near the second side arm 23, and the connecting rod 50 is in a vertical state, so that the height of the scanning channel P is at a high position and the width is normal. At the same time, the radiation source 31 of the scanning device 30 is at a high position, and the target 31A of the radiation source 31 and the radiation beam B emitted by it and the detection device 32 are also at a high position. At this time, the radiation inspection equipment is suitable for the inspection object O with a height that is too high without scanning the chassis. Figure 5 The width of the inspected object O can be set to a standard width.

[0142] like Figure 6 As shown, the slide 60 moves to the right end of the cabin 11 close to the second side arm 23, and the connecting rod 50 is inclined from bottom to top toward the second side arm 23 and the angle with the horizontal plane is relatively large, so that the height of the scanning channel P is at Figure 5 The high position and Figure 3-Figure 4At the same time, the radiation source 31 of the scanning device 30 is between the high position and the low position, and the target 31A of the radiation source 31 and the radiation beam B emitted by it and the detection device 32 are also between the high position and the low position. At this time, the radiation inspection equipment is suitable for the inspection object O with a small amount of height exceeding the height and a small amount of width exceeding the width without the need for scanning the chassis.

[0143] above Figures 3 to 6 Only a few variations of the scanning channel P of the radiation inspection device of this embodiment are shown. In actual work, the radiation inspection device can be changed into more forms according to the width and height of the inspected object O by changing the position of the slide 60 and the angle of the connecting rod 50, so as to be suitable for radiation scanning inspection of more inspected objects O. According to the above description, it can be known that the radiation scanning device of the embodiment of the present application can change the size and scanning range of the scanning channel P according to the inspected object O. For example, the scanning channel P and the scanning range can be adjusted in time according to different vehicles and different chassis heights, so as to meet the scanning requirements of different inspected objects O. Furthermore, the radiation inspection device of this embodiment can also realize the change of the target position and the change of the scanning range, while the beam plane of the radiation source and the detection device are coplanar without adjustment.

[0144] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and not to limit it. Although the present application has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present application can still be modified or some technical features can be replaced by equivalents, which should all be included in the scope of the technical solution requested for protection in this application.

Claims

1. A radiation inspection device, characterized in that: include: Mounting seat (10); Support frame (20); a connecting rod (50), which together with the support frame (20) and the mounting seat (10) defines a scanning channel (P) for an inspected object (O) to pass through, wherein a first end of the connecting rod (50) is rotatably connected to the mounting seat (10), and a second end of the connecting rod (50) is rotatably connected to the support frame (20); and a scanning device (30), mounted on the support frame (20), comprising a radiation source (31) and a detection device (32), wherein the scanning device (30) is configured to perform radiation inspection on the inspected object (O) passing through the scanning channel (P); The connecting rod (50) is configured to drive the support frame (20) to move relative to the mounting seat (10) to change the size of the scanning channel (P) and the scanning range of the scanning device (30).

2. The radiation inspection device according to claim 1, characterized in that: The ray source (31) and the detection device (32) are relatively fixed.

3. The radiation inspection device according to claim 1, characterized in that: The connecting rod (50) rotates relative to the mounting seat (10) about a first axis parallel to the scanning channel (P); and / or The connecting rod (50) rotates relative to the support frame (20) around a second axis parallel to the scanning channel (P).

4. The radiation inspection device according to claim 1, characterized in that: The radiation inspection device comprises a plurality of the connecting rods (50); and / or The connecting rod (50) is a rigid rod, a folding rod, or a telescopic rod whose length can be fixed after being telescoped.

5. The radiation inspection device according to claim 1, characterized in that: It also comprises a driving device (70), the driving device (70) being drivingly connected to the connecting rod (50) and configured to drive the connecting rod (50) to move so as to drive the supporting frame (20) to move relative to the mounting seat (10).

6. The radiation inspection device according to claim 5, characterized in that: Also includes: An information acquisition device (80) configured to acquire information of the inspected object (O); and A control device (40) is coupled to the information acquisition device (80) and the drive device (70), and is configured to control the action of the drive device (70) according to information of the inspected object (O) acquired by the information acquisition device (80).

7. The radiation inspection device according to claim 1, characterized in that: A first relative rotation portion (H1) between the first end of the connecting rod (50) and the mounting seat (10) is variably arranged relative to the mounting seat (10); and / or The second end of the connecting rod (50) and the second relative rotation point (H2) of the support frame (20) are variably arranged relative to the support frame (20).

8. The radiation inspection device according to claim 7, characterized in that: The mounting seat (10) comprises a cabin body (11), wherein the cabin body (11) has a receiving space (11A); The radiation source (31) is located in the accommodating space (11A), and a shelter (11B) is provided on the wall (111) of the cabin body (11) to provide a movement space for the support frame (20).

9. The radiation inspection device according to claim 7, characterized in that: The first relatively rotating portion (H1) is movable in a horizontal plane relative to the mounting seat (10); and / or The second relatively rotating portion (H2) is movable in a horizontal plane relative to the support frame (20); and / or The first relative rotation portion (H1) is movable relative to the mounting seat (10) in a direction perpendicular to the extension direction of the scanning channel (P); and / or The second relatively rotating portion (H2) is movable relative to the support frame (20) along a direction perpendicular to the extension direction of the scanning channel (P).

10. The radiation inspection device according to claim 7, characterized in that: The radiation inspection device further comprises a slide table (60), the first end of the connecting rod (50) being rotatably connected to the slide table (60), and the slide table (60) being mounted on the mounting seat (10) so that the position of the first relatively rotating portion (H1) relative to the mounting seat (10) is variable.

11. The radiation inspection device according to claim 7, characterized in that: The device further comprises a driving device (70), wherein the driving device (70) is drivingly connected to the connecting rod (50) and is configured to drive the connecting rod (50) to move so as to drive the support frame (20) to move relative to the mounting seat (10), and the driving device (70) comprises: a first driving unit (71) configured to drive the connecting rod (50) to rotate relative to the mounting seat (10) and the supporting frame (20); and The second driving part (72) is configured to drive the first relatively rotating part (H1) to move relative to the mounting seat (10) and / or to drive the second relatively rotating part (H2) to move relative to the support frame (20).

12. The radiation inspection device according to any one of claims 1 to 11, characterized in that: The support frame (20) comprises: Beam (21); a first side arm (22), the upper end of the first side arm (22) being fixedly connected to the first end of the crossbeam (21), and the radiation source (31) being mounted on the lower end of the first side arm (22); and A second side arm (23), the upper end of the second side arm (23) being fixedly connected to the second end of the crossbeam (21), the second side arm (23) being farther away from the mounting seat (10) relative to the first side arm (22), and the detection device (32) being mounted on the crossbeam (21) and / or the second side arm (23).

13. The radiation inspection device according to claim 12, characterized in that: The length of the second side arm (23) is adjustable so that the bottom end of the second side arm (23) and the bottom end of the mounting seat (10) can be adjusted to maintain a constant height difference before and after the support frame (20) moves relative to the mounting seat (10).

14. The radiation inspection device according to claim 13, characterized in that: The second side arm (23) comprises: a first arm section (231), the upper end of the first arm section (231) being connected to the crossbeam (21), the detection device (32) comprising a first detection portion (321) arranged on the first arm section (231); and A second arm segment (232), wherein the upper end of the second arm segment (232) is telescopically connected to the lower end of the first arm segment (231).

15. The radiation inspection device according to claim 14, characterized in that: It also includes a locking mechanism (233), the locking mechanism (233) having a locked state and an unlocked state, wherein in the locked state, the position of the first arm segment (231) relative to the second arm segment (232) is fixed, and in the unlocked state, the position of the first arm segment (231) relative to the second arm segment (232) is variable.

16. The radiation inspection device according to claim 14, characterized in that: The second side arm (23) further comprises a roller (234), wherein the roller (234) is arranged below the second arm section (232) and is rotatably arranged relative to the second arm section (232).

17. The radiation inspection device according to claim 12, characterized in that: Along the extension direction of the crossbeam (21), the first side arm (22) gradually inclines from its upper end to its lower end in a direction away from the second side arm (23) to form an angle with the vertical direction; and / or The second side arm (23) is arranged vertically.

18. The radiation inspection device according to claim 12, characterized in that: The detection device (32) comprises: a first detection portion (321) disposed on the second side arm (23); and / or The second detection part (322) is arranged on the crossbeam (21).

19. The radiation inspection device according to claim 12, characterized in that: The second end of the connecting rod (50) is rotatably connected to the first end of the crossbeam (21).

20. The radiation inspection device according to claim 12, characterized in that: The connecting rod (50) rotates relative to the mounting seat (10) about a first axis perpendicular to the extension direction of the crossbeam (21); and / or The connecting rod (50) rotates relative to the support frame (20) about a second axis perpendicular to the extension direction of the crossbeam (21); and / or The first relatively rotating portion (H1) is movable relative to the mounting seat (10) along the extension direction of the crossbeam (21); and / or The second relatively rotating portion (H2) is movable relative to the support frame (20) along the extension direction of the crossbeam (21).

Images