Radiation inspection apparatus

Abstract

A radiation inspection apparatus, comprising: a mounting base (10); a support frame (20); connecting rods (50), wherein the connecting rods (50), the support frame (20) and the mounting base (10) together define a scanning passage (P) for an object (O) to be inspected to pass through, first ends of the connecting rods (50) are rotatably connected to the mounting base (10), and second ends of the connecting rods (50) are rotatably connected to the support frame (20); and a scanning device (30), which is mounted on the support frame (20) and comprises a radiation source (31) and a detection device (32), the scanning device (30) being configured to perform radiation inspection on the object (O) to be inspected passing through the scanning passage (P). The connecting rods (50) are configured to drive the support frame (20) to move relative to the mounting base (10), so as to change the size of the scanning passage (P) and the scanning range of the scanning device (30), such that the scanning passage (P) can adapt to objects (O) to be inspected of more specifications to achieve complete scanning.

Description

Radiation inspection equipment

[0001] Cross-references to related applications

[0002] This disclosure is based on and claims priority to Chinese Patent Application No. 202411638925.9, filed on November 15, 2024, entitled "Radiation Inspection Equipment", the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] This disclosure relates to the field of radiation inspection technology, and in particular to a radiation inspection device. Background Technology

[0004] Radiation inspection equipment can be used for rapid scanning inspection of goods / vehicles, meeting the needs of ports, customs and other large-volume cargo transportation for non-stop rapid inspection. It can provide high-resolution scanning images based on material composition information, enabling inspectors to effectively and quickly detect smuggled goods and various contraband hidden in cargo without stopping or opening the container.

[0005] The radiation inspection equipment of this technology uses a doorway-type scanning channel. The dimensions (width × height) of the scanning channel are typically determined by the largest cargo size the customer needs to inspect. The target height of the radiation source, such as an X-ray emission source, is consistent with the height of the upper surface of a standard container vehicle chassis and cannot be changed. The angle of the radiation beam emitted by the source is fixed and determined to cover the largest cross-section of the cargo passing through the channel.

[0006] For vehicles with high chassis, such as AGV container self-propelled vehicles, the target height of the X-ray source is lower than the upper surface of the vehicle. The X-ray beam at the bottom passes through the chassis first 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.

[0007] For low-chassis light trucks, a significant amount of cargo information underneath the vehicle is not covered by the X-ray beam's detection range, affecting the accuracy of the inspection results for the cargo under the vehicle.

[0008] For goods / vehicles that cannot pass through equipment inspection due to excessive width or height, other inspection methods must be adopted, which affects inspection efficiency.

[0009] The above statements are for providing background information in connection with this disclosure only and do not necessarily constitute related technology. Summary of the Invention

[0010] The purpose of this disclosure is to provide a radiation inspection device that expands the range of objects to be inspected.

[0011] This disclosure provides a radiation inspection device, comprising: a mounting base; a support frame; a connecting rod, together with the support frame and the mounting base, defining a scanning channel for an object to be inspected to pass through, a first end of the connecting rod being rotatably connected to the mounting base, and a second end of the connecting rod being rotatably connected to the support frame; and a scanning device mounted on the support frame, including a radiation source and a detection device, the scanning device being configured to perform radiation inspection on the object to be inspected passing through the scanning channel; wherein the connecting rod is configured to move the support frame relative to the mounting base to change the size of the scanning channel and the scanning range of the scanning device.

[0012] In some embodiments of the radiation inspection equipment, the radiation source and the detection device are fixed relative to each other.

[0013] In some embodiments of the radiation inspection equipment, the connecting rod rotates relative to the mounting base about a first axis parallel to the scanning channel; and / or the connecting rod rotates relative to the support frame about a second axis parallel to the scanning channel.

[0014] In some embodiments of the radiation inspection equipment, the radiation inspection equipment includes a plurality of the connecting rods; and / or the connecting rods are rigid rods, folding rods, or telescopic rods whose length can be fixed after extension and retraction.

[0015] In some embodiments of the radiation inspection equipment, the radiation inspection equipment further includes a drive device that is driven connected to the connecting rod and configured to drive the connecting rod to move the support frame relative to the mounting base.

[0016] In some embodiments of the radiation inspection equipment, the radiation inspection equipment further includes: an information acquisition device configured to acquire information about the object being inspected; and a control device coupled to the information acquisition device and the drive device, configured to control the operation of the drive device based on the information about the object being inspected acquired by the information acquisition device.

[0017] In some embodiments of the radiation inspection equipment, the first end of the connecting rod and the first relatively rotating part of the mounting base are variably positioned relative to the mounting base; and / or the second end of the connecting rod and the second relatively rotating part of the support frame are variably positioned relative to the support frame.

[0018] In some embodiments of the radiation inspection equipment, the mounting base includes a cabin with a receiving space; the radiation source is located within the receiving space, and the cabin wall is provided with a clearance opening to provide space for the movement of the support frame.

[0019] In some embodiments of the radiation inspection apparatus, the first relatively rotating part is movable relative to the mounting base in a horizontal plane; and / or the second relatively rotating part is movable relative to the support frame in a horizontal plane; and / or the first relatively rotating part is movable relative to the mounting base in a direction perpendicular to the extension direction of the scanning channel; and / or the second relatively rotating part is movable relative to the support frame in a direction perpendicular to the extension direction of the scanning channel.

[0020] In some embodiments of the radiation inspection equipment, the radiation inspection equipment further includes a slide table, a first end of the connecting rod being rotatably connected to the slide table, and the slide table being mounted on the mounting base so that the position of the first relatively rotating part relative to the mounting base is variable.

[0021] In some embodiments of the radiation inspection equipment, the radiation inspection equipment further includes a driving device, which is drivenly connected to the connecting rod and configured to drive the connecting rod to move the support frame relative to the mounting base. The driving device includes: a first driving part configured to drive the connecting rod to rotate relative to the mounting base and the support frame; and a second driving part configured to drive the first relatively rotating part to move relative to the mounting base and / or drive the second relatively rotating part to move relative to the support frame.

[0022] In some embodiments of the radiation inspection equipment, the support frame includes: a crossbeam; a first side arm, the upper end of which is fixedly connected to a first end of the crossbeam, and the radiation source is mounted on the lower end of the first side arm; and a second side arm, the upper end of which is fixedly connected to a second end of the crossbeam, the second side arm being farther away from the mounting base relative to the first side arm, and the detection device being mounted on the crossbeam and / or the second side arm.

[0023] 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 base can be adjusted back and forth on the support frame relative to the mounting base to maintain a constant height difference.

[0024] In some embodiments of the radiation inspection equipment, the second side arm includes: a first arm segment, the upper end of which is connected to the crossbeam, and the detection device includes a first detection part disposed on the first arm segment; and a second arm segment, the upper end of which is retractably connected to the lower end of the first arm segment.

[0025] In some embodiments of the radiation inspection equipment, the radiation inspection equipment further includes a locking mechanism having 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.

[0026] In some embodiments of the radiation inspection equipment, the second side arm further includes a roller disposed below the second arm segment and rotatably disposed relative to the second arm segment.

[0027] In some embodiments of the radiation inspection equipment, along the extension direction of the crossbeam, the first side arm gradually tilts from its upper end to its lower end away from the second side arm, forming an angle with the vertical direction; and / or the second side arm is vertically arranged.

[0028] In some embodiments of the radiation inspection equipment, the detection device includes: a first detection unit disposed on the second side arm; and / or a second detection unit disposed on the crossbeam.

[0029] In some embodiments of the radiation inspection equipment, the second end of the connecting rod is rotatably connected to the first end of the crossbeam.

[0030] In some embodiments of the radiation inspection equipment, the connecting rod rotates relative to the mounting base about a first axis perpendicular to the extension direction of the crossbeam; and / or the connecting rod rotates relative to the support frame about a second axis perpendicular to the extension direction of the crossbeam; and / or the first relatively rotating portion is movable relative to the mounting base along the extension direction of the crossbeam; and / or the second relatively rotating portion is movable relative to the support frame along the extension direction of the crossbeam.

[0031] Based on the radiation inspection equipment provided in this disclosure, since the connecting rod is rotatably connected to the mounting base and the support frame respectively, the connecting rod can drive the support frame to move relative to the mounting base, thereby changing the size of the scanning channel and the scanning range of the scanning device. This allows the scanning channel to accommodate more sizes of inspected objects, enabling them to pass through the scanning channel and allowing the scanning device to perform a complete scan of the inspected object, thus expanding the range of inspected objects. Furthermore, it also helps improve the accuracy of inspection results for some special parts of the inspected object, such as those near the chassis. Additionally, it eliminates the need for other methods to inspect objects of special dimensions, allowing radiation inspection to be completed directly through the radiation inspection equipment, thereby improving inspection efficiency.

[0032] Other features and advantages of this disclosure will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0033] The accompanying drawings, which are included to provide a further understanding of this disclosure and form part of this disclosure, illustrate exemplary embodiments of the present disclosure and are used to explain the disclosure, but do not constitute an undue limitation of the disclosure. In the drawings:

[0034] Figure 1 is a schematic diagram of the structure of a radiation inspection device according to an embodiment of this disclosure.

[0035] Figure 2 is a top view of the structure shown in Figure 1.

[0036] Figures 3 and 4 are schematic diagrams of the scanning channel of the radiation inspection equipment shown in Figure 1 at one of its dimensions, which allows for radiation inspection of objects without a chassis or of objects that are very wide and have a low height.

[0037] Figure 5 is a schematic diagram of the scanning channel of the radiation inspection equipment shown in Figure 1 in another size, which allows for radiation inspection of extremely tall objects.

[0038] Figure 6 is a schematic diagram of the scanning channel of the radiation inspection equipment shown in Figure 1 in another size, which allows for radiation inspection of objects that are too tall or too wide.

[0039] Figure 7 is a schematic diagram of the control principle for the size change of the control scanning channel of the radiation inspection equipment shown in Figure 1.

[0040] Figure 8 is a partial structural schematic diagram of the support frame of an alternative embodiment of the radiation inspection equipment shown in Figure 1. Detailed Implementation

[0041] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this disclosure or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0042] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this disclosure. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0043] In the description of this disclosure, it should be understood that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this disclosure.

[0044] In the description of this disclosure, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing this disclosure and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this disclosure; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0045] Furthermore, 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.

[0046] As shown in Figures 1 to 8, this disclosure provides a radiation inspection device. The radiation inspection device mainly includes a mounting base 10, a support frame 20, a connecting rod 50, and a scanning device 30.

[0047] The connecting rod 50, together with the support frame 20 and the mounting base 10, defines a scanning channel P for the object O to be inspected to pass through. A first end of the connecting rod 50 is rotatably connected to the mounting base 10. A second end of the connecting rod 50 is rotatably connected to the support frame 20.

[0048] 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 being inspected as it passes through the scanning channel P.

[0049] The connecting rod 50 is configured to move the support frame 20 relative to the mounting base 10, thereby changing the size of the scanning channel P and the scanning range of the scanning device 30.

[0050] According to the radiation inspection equipment of this disclosure, since the connecting rod 50 is rotatably connected to the mounting base 10 and the support frame 20 respectively, the connecting rod 50 can drive the support frame 20 to move relative to the mounting base 10, thereby changing the size of the scanning channel P and the scanning range of the scanning device 30. This allows the scanning channel P to accommodate more sizes of inspected objects O, enabling them to pass through the scanning channel P and allowing the scanning device 30 to perform a complete scan of the inspected objects O, thus expanding the range of inspected objects O. Furthermore, it also helps improve the accuracy of inspection results for some special parts of the inspected object O, such as those near the chassis. Additionally, it eliminates the need for other methods to inspect inspected objects O of special sizes, allowing radiation inspection to be completed directly through the radiation inspection equipment, thereby improving inspection efficiency. For example, the radiation inspection equipment of this disclosure is advantageous for obtaining higher accuracy and efficiency in inspection results for inspected objects O that are excessively tall, excessively wide, simultaneously excessively tall and wide, or have excessively low chassis within a certain size range.

[0051] The radiation source 31 is, for example, an X-ray source, a gamma-ray source, etc. An X-ray source may be, for example, an accelerator or an X-ray tube. The detection device 32 may include various types of detectors, such as gas detectors, semiconductor detectors, scintillation detectors, etc.

[0052] In the embodiments shown in Figures 1 to 6, the mounting base 10 is disposed on the ground G. In embodiments not shown, the mounting base 10 may be disposed on a fixed or movable other base, such as the chassis of a radiation inspection vehicle.

[0053] Mounting base 10 can be, for example, a solid pedestal, a cabin with accommodating space, a beam, column, frame, or other structure that can bear the deformation of support frame 20.

[0054] Unless otherwise limited, the connection described in the embodiments of this disclosure can be a direct connection between two interconnected components or an indirect connection through other components.

[0055] As shown in Figures 1 to 6, in some embodiments of the radiation inspection equipment, the radiation source 31 and the detection device 32 are fixed relative to each other.

[0056] The X-ray source 31 and the detection device 32 are fixed relative to each other and will not change their relative positions as the support frame 20 moves relative to the mounting base 10. This is beneficial because it eliminates the need to adjust the positions of the X-ray source 31 and the detection device 32 of the scanning device 30 before and after the size of the scanning channel P changes. This allows for the rapid commencement of scanning inspection after the size of the scanning channel P changes, thereby improving inspection efficiency.

[0057] As shown in Figures 1 to 6, in some embodiments of the radiation inspection equipment, the connecting rod 50 rotates relative to the mounting base 10 about a first axis parallel to the scanning channel P; and / or the connecting rod 50 rotates relative to the support frame 20 about a second axis parallel to the scanning channel P.

[0058] Based on the above settings, the rotation of the connecting rod 50 relative to the mounting base 10 and / or support frame 20 facilitates the rapid and accurate adjustment of the width and / or height of the scanning channel P, enabling the scanning channel P to be quickly adjusted to a size suitable for the object being inspected O to pass through and achieve accurate scanning.

[0059] As shown in Figures 1 to 6, in some embodiments of the radiation inspection equipment, the radiation inspection equipment includes multiple connecting rods 50; and / or the connecting rods 50 are rigid rods, folding rods, or telescopic rods whose length can be fixed after extension and retraction. When the radiation inspection equipment includes multiple connecting rods 50, the multiple connecting rods are preferably arranged in parallel.

[0060] The radiation inspection equipment includes multiple connecting rods 50, which, for example, restrict the degree of freedom of movement of the support frame 20 relative to the mounting base 10, enabling the scanning channel P to be quickly and accurately adjusted to fit the required size of the scanning channel P of the object being inspected O. The number of parallel connecting rods 50 is, for example, two, three, four, or more.

[0061] As shown in Figures 1 to 6, in some embodiments of the radiation inspection equipment, the connecting rod 50 is a rigid rod. In the embodiments shown in Figures 1 to 6, the connecting rod is a straight rod. In embodiments not shown, the connecting rod can also be configured as a curved rod or a bent rod according to different needs, such as avoiding obstacles or providing installation space for the drive device.

[0062] In embodiments not illustrated, the connecting rod 50 can also be a folding rod or a telescopic rod whose length can be fixed after extension and retraction. By setting the connecting rod 50 as a folding rod or a telescopic rod whose length can be fixed after extension and retraction, the size of the scanning channel P can be adjusted within a wider range, thus accommodating more inspected objects O of special sizes. When the connecting rod is a folding rod or a telescopic rod whose length can be fixed after extension and retraction, the number of connecting rods can also be multiple, such as 2, 3, or 4 or more. When multiple folding rods are included, the multiple folding rods can fold synchronously or asynchronously, and the multiple folding rods can change the same angle or different angles before and after each folding rod. A folding rod can include two foldable rod segments, or it can include three or more foldable rod segments. When multiple telescopic rods are included, the multiple telescopic rods can extend and retract synchronously and be fixed after extension and retraction, or they can extend and retract asynchronously and be fixed after extension and retraction, and the multiple telescopic rods can extend and retract by the same length or different lengths before and after each extension and retraction. A telescopic rod can include two extendable rod segments, or it can include three or more extendable rod segments.

[0063] When a radiation inspection device includes multiple connecting rods, the types of connecting rods can be the same or different. For example, to meet the relative movement required for adjustment, the multiple connecting rods can include rigid rods of different shapes. The multiple connecting rods can also include at least two of the following: rigid rods, folding rods, and telescopic rods whose length can be fixed after extension and retraction.

[0064] As shown in Figure 7, in some embodiments of the radiation inspection equipment, the radiation inspection equipment also includes a drive device 70, which is drivenly connected to the connecting rod 50 and configured to drive the connecting rod 50 to move the support frame 20 relative to the mounting base 10.

[0065] By setting the drive device 70 to drive the connecting rod 50 to move, the support frame 20 can move relative to the mounting base 10, thereby adjusting the size of the scanning channel P, which is conducive to realizing the automatic adjustment of the size of the scanning channel P.

[0066] The drive device may include electric, pneumatic, or hydraulic actuators, such as rotary motors, linear motors, cylinders, and hydraulic cylinders. It may also include a transmission device disposed between the actuator and the connecting rod 50. The transmission device may include, for example, a gear and rack transmission mechanism, a cam push rod transmission mechanism, a worm gear transmission mechanism, or a gear transmission mechanism.

[0067] As shown in Figure 7, in some embodiments of the radiation inspection equipment, the radiation inspection equipment further includes an information acquisition device 80 and a control device 40. The information acquisition device 80 is configured to acquire information about the object being inspected, 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 operate based on the information about the object being inspected, O, acquired by the information acquisition device 80.

[0068] Based on the information of the object being inspected 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 determined. Thus, the drive device 70 is controlled to operate according to the information of the object being inspected O, which facilitates the rapid and accurate acquisition of the appropriate size of the scanning channel P for radiation inspection of the current object being inspected O.

[0069] The information acquisition device 80 can be, for example, an input device or a scanning device for acquiring the model number of the object being inspected O, or a sensor for acquiring the dimensions of the object being inspected O. For example, in the embodiment shown in FIG7, the information acquisition device 80 may include a first detection unit 81 and a second detection unit 82 for detecting the height information and width information of the object being inspected O, respectively. The information of the object being inspected O includes the height information and width information of the object being inspected O. The first detection unit 81 and the second detection unit 82 can be length sensors, such as laser scanning length measuring sensors.

[0070] As shown in Figures 1 to 6, in some embodiments of the radiation inspection equipment, the first end of the connecting rod 50 and the first relative rotating part H1 of the mounting base 10 are variably positioned relative to the mounting base 10; and / or the second end of the connecting rod 50 and the second relative rotating part H2 of the support frame 20 are variably positioned relative to the support frame 20.

[0071] The above configuration allows the support frame 20 to have a greater range of motion relative to the mounting base 10, thereby allowing for greater adjustment of the size of the scanning channel and the scanning range of the scanning device, and thus enabling greater adaptation to the size of the object O being inspected and its scanning requirements.

[0072] In this embodiment of the present disclosure, the first relative rotational portion H1 between the first end of the connecting rod 50 and the mounting base 10 refers to the portion where the two rotate relative to each other. For example, the first relative rotational portion H1 can be the direct connection portion between the connecting rod 50 and the mounting base 10; the first relative rotational portion H1 can also be the portion where either the connecting rod 50 or the mounting base 10 is connected to an intermediate transition component, with the intermediate transition component located on the other of the connecting rod 50 and the mounting base 10; or the connecting rod 50 and the mounting base 10 can each be connected by an intermediate transition component, and the first relative rotational portion H1 is the portion where the two intermediate transition components are connected, etc. Referring to Figures 1 to 6, in some embodiments of the present disclosure, the first relative rotational portion H1 is located at the hinge portion between the connecting rod 50 and the slide 60 connected to the mounting base 10. Similarly, the second relative rotational portion H2 between the second end of the connecting rod 50 and the support frame 20 refers to the portion where the connecting rod 50 and the support frame 20 rotate relative to each other. For example, the second relative rotation part H2 can be the direct connection between the connecting rod 50 and the support frame 20; the second relative rotation part H2 can also be the part where either the connecting rod 50 or the support frame 20 is connected to an intermediate transition component, with the intermediate transition component located on the other of the support frames 20; or the connecting rod 50 and the support frame 20 can each be connected by an intermediate transition component, and the second relative rotation part H2 is the part where the two intermediate transition components are connected, etc. Referring to Figures 1 to 6, in some embodiments of this disclosure, the second relative rotation part H2 is located at the hinged connection between the connecting rod 50 and the support frame 20.

[0073] In the embodiments shown in Figures 1 to 8, 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 relative rotating part H1 of the first end of the connecting rod 50 and the mounting base 10 is variably positioned relative to the mounting base 10.

[0074] In an embodiment not shown, the first end of the connecting rod 50 may be rotatably connected to the mounting base 10, the second end of the connecting rod 50 may be rotatably connected to the support frame 20, and the second relative rotating part H2 of the second end of the connecting rod 50 and the support frame 20 may be variably positioned relative to the support frame 20.

[0075] Alternatively, in another embodiment not shown, the first end of the connecting rod 50 may be rotatably connected to the mounting base 10, the second end of the connecting rod 50 may be rotatably connected to the support frame 20, and the first relative rotation portion H1 of the first end of the connecting rod 50 and the mounting base 10 may be variably positioned relative to the mounting base 10, while the second relative rotation portion H2 of the second end of the connecting rod 50 and the support frame 20 may be variably positioned relative to the support frame 20.

[0076] As shown in Figures 1 to 6, in some embodiments of the radiation inspection equipment, the mounting base 10 includes a chamber 11. The chamber 11 has a receiving space 11A. The radiation source 31 is located within the receiving space 11A. The chamber wall 111 of the chamber 11 is provided with a clearance opening 11B to provide space for the movement of the support frame 20.

[0077] The mounting base 10 includes a cabin 11, and positions the radiation source 31 within the accommodating space 11A of the cabin 11. This provides mechanical protection for the radiation source 31 when the connecting rod 50 and support frame 20 change position relative to the mounting base 10, preventing damage from impacts. Furthermore, it allows the cabin wall 111 of the cabin 11 to have a shielding function, thus providing radiation protection for the radiation source. For example, heavy metal plates can be installed on the parts of the cabin wall 111 that require protection, such as on the side walls of the cabin 11. A heavy metal protective layer can be added to the shielding cabin wall 111, or the cabin wall can be made of heavy metal.

[0078] An clearance opening 11B is provided on the bulkhead 111 of the cabin 11 to provide space for the support frame 20 to move, which helps to prevent the support frame 20 from interfering with the cabin 11 when it moves relative to the cabin 11, and allows the size of the scanning channel P to be adjusted smoothly.

[0079] As shown in Figures 1 to 6, in some embodiments of the radiation inspection equipment, the radiation inspection equipment further includes a slide 60, the first end of the connecting rod 50 is rotatably connected to the slide 60, and the slide 60 is mounted on the mounting base 10 so that the position of the first relative rotating part H1 relative to the mounting base 10 is variable.

[0080] By additionally setting a slide 60 on the mounting base 10, the position of the first relatively rotating part H1 relative to the mounting base 10 can be varied. This is easy to implement and provides good controllability of the movement of the first relatively rotating part H1 relative to the mounting base 10, which is beneficial for quickly and accurately changing the position of the first relatively rotating part H1 relative to the mounting base 10 according to the size requirements of the scanning channel P. In the embodiments shown in Figures 1 to 6, the first relatively rotating part H1 is located at the hinge joint between the connecting rod 50 and the slide 60. The slide 60 can be, for example, a linear slide, a cross slide, etc.

[0081] As shown in Figures 1 to 6, in some embodiments of the radiation inspection equipment, the slide 60 is located on top of the mounting base 10.

[0082] By positioning the slide 60 at the top of the mounting base 10, the first end of the connecting rod 50 experiences less interference when moving with the slide 60, thus having a larger range of motion, which facilitates adjustment of the scanning channel P within a wider size range.

[0083] As shown in Figures 1 to 6, in some embodiments of the radiation inspection equipment, the first relative rotating part H1 is movable relative to the mounting base 10 on a horizontal plane; and / or the second relative rotating part H2 is movable relative to the support frame 20 on a horizontal plane; and / or the first relative rotating 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 rotating part H2 is movable relative to the support frame 20 in a direction perpendicular to the extension direction of the scanning channel P.

[0084] The above settings facilitate the quick and accurate adjustment of the width and / or height of the scanning channel P, enabling the scanning channel P to be quickly adjusted to a size suitable for the object O to pass through and achieve accurate scanning.

[0085] In the embodiments shown in Figures 1 to 6, the first relatively rotating part H1 is movable relative to the mounting base 10 on a horizontal plane via the slide table 60. In embodiments not shown, the first relatively rotating part H1 can be movable relative to the mounting base 10 on a horizontal plane by directly placing a pin connected to the connecting rod 50 within a horizontally positioned groove in the mounting base 10.

[0086] In the embodiments shown in Figures 1 to 6, the connecting rod 50 is hinged to the support frame 20, so that the position of the second relative rotating part H2 relative to the support frame 20 remains unchanged on the horizontal plane. In embodiments not shown, the second relative rotating part H2 can be moved relative to the support frame 20 on the horizontal plane by setting the hinge hole on the support frame 20 as an elongated hole extending in the horizontal direction, thereby facilitating the adjustment of the size of the scanning channel P.

[0087] As shown in Figure 7, in some embodiments of the radiation inspection equipment, the radiation inspection equipment further includes a drive device 70. The drive device 70 is drivenly connected to the connecting rod 50 and configured to drive the connecting rod 50 to move the support frame 20 relative to the mounting base 10. The drive device 70 includes a first drive part 71 and a second drive part 72. The first drive part 71 is configured to drive the connecting rod 50 to rotate relative to the mounting base 10 and the support frame 20. The second drive part 72 is configured to drive a first relatively rotating part H1 to move relative to the mounting base 10 and / or drive a second relatively rotating part H2 to move relative to the support frame 20.

[0088] A first drive unit 71 and a second drive unit 72 are respectively provided, which can control the rotation angle of the connecting rod 50 and the displacement of the first relatively rotating part H1 relative to the mounting base 10 and / or the displacement of the second relatively rotating part H2 relative to the support frame 20, so that the connecting rod 50 can quickly adjust its position according to the size of the scanning channel P. The first drive unit 71 can be, for example, a combination of a cylinder, hydraulic cylinder, linear motor or rotary motor and transmission device connected between the connecting rod 50 and the slide table 60. The second drive unit 72 can be, for example, a combination of a cylinder, hydraulic cylinder, linear motor or rotary motor and transmission device connected between the mounting base 10 and the slide table 60.

[0089] As shown in Figures 1 to 6, in some embodiments of the radiation inspection equipment, 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 mounted on 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, and the second side arm 23 is located away from the mounting base 10 relative to the first side arm 22. The detection device 32 is mounted on the crossbeam 21 and / or the second side arm 23.

[0090] In the above configuration, the support frame 20 forms a frame structure with an open bottom, which facilitates the formation of the scanning channel P and allows the object being inspected O to pass through the scanning channel P. It also ensures that the relative positions of the X-ray source 31 and the detection device 32 of the scanning device 30 remain unchanged, and do not change with the movement of the support frame 20 relative to the mounting base 10. This eliminates the need to adjust the positions of the X-ray source 31 and the detection device 32 of the scanning device 30 before and after changes in the size of the scanning channel P, thereby facilitating the rapid commencement of scanning inspection after changes in the size of the scanning channel P and improving inspection efficiency.

[0091] As shown in Figures 1 to 6, 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 maintain a constant height difference before and after the support frame 20 moves relative to the mounting base 10.

[0092] The above-mentioned structure of the second side wall 23 facilitates the stable support of the front and rear support frames 20 away from the mounting base 10 for the size adjustment of the scanning channel P. 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.

[0093] As shown in Figures 1 to 6, in some embodiments of the radiation inspection equipment, 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.

[0094] By setting up a first arm segment 231 and a second arm segment 232 that can be telescopically connected, the length of the second side arm 23 can be easily adjusted.

[0095] Alternatively, the second arm segment 232 can be configured as a sleeve with an open top, and the lower end of the first arm segment 231 can extend into the sleeve. Or, the lower end of the first arm segment 231 can be configured as a sleeve with an open bottom, and the upper end of the second arm segment 232 can extend into the sleeve.

[0096] As shown in Figure 8, 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.

[0097] The second side arm 23 also includes rollers 234, which facilitate the movement of the second side arm 23 along the support surface at the bottom of the second side wall 23, such as the ground G, before and after the support frame 20 moves relative to the mounting base 10, thereby facilitating the rapid and accurate adjustment of the size of the scanning channel P.

[0098] As shown in Figures 1 to 6, in some embodiments of the radiation inspection equipment, the radiation inspection equipment further 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.

[0099] The locking mechanism 233 is designed 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.

[0100] As shown in Figures 1 to 6, in some embodiments of the radiation inspection equipment, along the extension direction of the crossbeam 21, 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, forming an angle with the vertical direction; and / or the second side arm 23 is vertically arranged.

[0101] The first side arm 22 gradually tilts from its upper end toward the direction away from the second side arm 23, forming an angle with the vertical direction. This facilitates the change in size of the scanning channel P as the connecting rod 50 and the support frame 20 move. The vertical arrangement of the second side arm 23 provides more stable support for the support frame 20. When the detection device 32 is at least partially mounted on the support frame 20, it also facilitates the vertical arrangement of the at least partially detection device 32 on the second side arm 23, thereby facilitating the formation of a vertical detection array with a horizontal viewing angle for the scanning device.

[0102] As shown in Figures 1 to 6, 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 crossbeam 21.

[0103] The above settings enable the scanning device 30 of the radiation inspection equipment to form a transmission scanning device for multi-site detection with a horizontal viewing angle.

[0104] As shown in Figures 1 to 6, in some embodiments of the radiation inspection equipment, the second end of the connecting rod 50 is rotatably connected to the first end of the crossbeam 21.

[0105] The second end of the connecting rod 50 is rotatably connected to the first end of the crossbeam 21. The support frame 20 can be driven by driving the crossbeam 21, so that the support frame 20 can move stably relative to the mounting base 10 and change the size of the scanning channel P.

[0106] In an embodiment not shown, the second end of the connecting rod 50 may also be rotatably connected to the upper end of the second side arm 23.

[0107] As shown in Figures 1 to 6, in some embodiments of the radiation inspection equipment, the connecting rod 50 rotates relative to the mounting base 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 relative rotating part H1 is movable relative to the mounting base 10 along the extension direction of the crossbeam 21; and / or the second relative rotating part H2 is movable relative to the support frame 20 along the extension direction of the crossbeam 21.

[0108] The above settings, by reasonably setting the degree of freedom of the connecting rod 50 and the support frame 20 relative to the mounting base 10, facilitate the rapid and accurate adjustment of the size of the scanning channel P to meet the corresponding requirements of the object being inspected O.

[0109] The radiation inspection apparatus of the present disclosure will be described in detail below with reference to Figures 1 to 8.

[0110] Figures 1 to 7 illustrate radiation inspection equipment according to some embodiments of the present disclosure. The radiation inspection equipment mainly includes a mounting base 10, a support frame 20, a scanning device 30, a controller 40, two connecting rods 50, a slide table 60, a drive device 70, and an information acquisition device 80. The connecting rods 50, together with the support frame 20 and the mounting base 10, define a scanning channel P for the object O to be inspected to pass through.

[0111] The mounting base 10 is fixedly installed on the ground G, forming a cabin 11. The cabin 11 has a receiving space 11A. The X-ray source 31 is located within the receiving space 11A. A clearance opening 11B is provided on the cabin wall 111 to provide space for the support frame 20 to move. In this embodiment, the cabin 11 is a square box structure. The top wall of the cabin wall 111 is horizontal. The clearance opening 11B is located on the top wall of the cabin 11 and extends in a direction perpendicular to the extension direction of the scanning channel P. The cabin wall 111 includes a heavy metal plate to achieve the shielding function of the cabin wall 111.

[0112] The support frame 20 generally 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 positioned 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 located away from the mounting base 10 relative to the first side arm 22.

[0113] Along the extension direction of the crossbeam 21, the first side arm 22 gradually tilts from its upper end to its lower end away from the second side arm 23, forming an angle with the vertical direction.

[0114] 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 base 10 can be adjusted to maintain a constant height difference before and after the support frame 20 moves relative to the mounting base 10. In the embodiments shown in Figures 1 to 7, the bottom end of the second side arm 23 can always be supported on the ground G, so the height difference is 0.

[0115] The second side arm 23 includes a first arm segment 231, a second arm segment 232, and a locking mechanism 233. The upper end of the first arm segment 231 is connected to the crossbeam 21. The upper end of the second arm segment 232 is telescopically connected to the lower end of the first arm segment 231. The second arm segment 232 is configured as a sleeve with an open top, and the lower end of the first arm segment 231 extends into the sleeve.

[0116] 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. 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 sleeve side wall of the second arm segment 232. When the length of the second arm segment 23 needs to be adjusted, the locking screw is loosened, allowing the first arm segment 231 to move relative to the second arm segment 232 to the desired length. After the length of the second arm segment 23 is adjusted, the locking screw is tightened, so that the end of the locking screw presses against the side wall of the first arm segment 231, fixing the first arm segment 231 relative to the second arm segment 232.

[0117] The scanning device 30 is configured to perform radiation inspection on the object O being inspected as it passes through the scanning channel P. The scanning device 30 is mounted on the support frame 20 and includes a radiation source 31 and a detection device 32, with the radiation source 31 and detection device 32 fixed relative to each other. The radiation source 31 is mounted at the lower end of the first side arm 22 and located within the accommodating space 11A of the cabin 11. The radiation source 31 is an X-ray source, specifically an accelerator in this embodiment, whose target point 31A emits a radiation beam B towards the detection device 32. During radiation inspection of the object O, the radiation beam B passing through the object O is detected by the detection device 32, and the information detected by the detection device 32 can be used by an imaging device to form a radiation scan image of the object O. The detection device 32 includes a first detection unit 321 and a second detection unit 322. In this embodiment, both the first detection unit 321 and the second detection unit 322 include a detection arm and a detector array installed within the detection arm; the detectors are scintillation detectors. The first detection part 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 part 322 is disposed on the crossbeam 21 of the mounting frame 20.

[0118] Two connecting rods 50 are arranged parallel to each other. 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 table 60 at a first relative rotational position H1 between the first end of the connecting rod 50 and the mounting base 10. In this embodiment, the connecting rod 50 rotates relative to the mounting base 10 about a first axis perpendicular to the extension direction of the crossbeam 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 crossbeam 21 of the support frame 20 at a second relative rotational position H2. In this embodiment, the connecting rod 50 rotates relative to the support frame 20 about a second axis perpendicular to the extension direction of the crossbeam 21, that is, parallel to the extension direction of the scanning channel P.

[0119] The drive unit 70 is motive-connected to the connecting rod 50 and configured to drive the connecting rod 50 to move the support frame 20 relative to the mounting base 10. The drive unit 70 includes a first drive section 71 and a second drive section 72. The first drive section 71 is configured to drive the connecting rod 50 to rotate relative to the mounting base 10 and the support frame 20. The first drive section 71 is a first hydraulic cylinder connected between the slide table 60 and the connecting rod 50 or between the support frame 20 and the connecting rod 50. The second drive section 72 is configured to drive the first relatively rotating part H1 to move relative to the mounting base 10. The second drive section 72 is a second hydraulic cylinder connected between the slide table 60 and the cabin 11.

[0120] 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 reciprocate on the horizontal plane in a direction perpendicular to the extension direction of the scanning channel P, i.e., along the extension direction of the crossbeam 21, under the drive of the second drive unit 72 of the drive device 70. Since the slide 60 is mounted on the mounting base 10 and can slide along the cabin 11, the position of the first end of the connecting rod 50 and the first relative rotating part H1 of the mounting base 10 relative to the mounting base 10 can be variable.

[0121] The connecting rod 50 can be driven by the first driving part 71 of the driving device 70 to rotate relative to the mounting base 10 and the support frame 20. The movement of the connecting rod 50 can cause the support frame 20 to move relative to the mounting base 10, thereby changing the size of the scanning channel P. The radiation source 31 moves with the support frame 20 and its first side arm 22, and the radiation beam B emitted by its target point 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 it can always receive the corresponding radiation information. Thus, the size of the scanning channel P is adapted to the positional changes of the radiation source 30, its emitted radiation beam 31, and the detection device 32, allowing radiation inspection of objects O of different sizes.

[0122] 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 being inspected O, and the second detection unit 82 is used to detect the width information of the object being inspected O.

[0123] 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 operate based on the height and width information of the object O being inspected detected by the information acquisition device 80.

[0124] 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 also to the first drive unit 71 and the second drive unit 72 of the drive device 70. It controls the operation of the first drive unit 71 and the second drive unit 72 based on the height information detected by the first detection unit 81 and the width information detected by the second detection unit 82. This controls the change in the size of the scanning channel P by the positional change of the connecting rod 50 and the support frame 20 relative to the mounting base 10.

[0125] The control device 40 of this disclosure embodiment can be implemented as a general-purpose processor, programmable logic controller (PLC), digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or any suitable combination thereof for performing the functions described in this disclosure.

[0126] In this embodiment, the two connecting rods 50, the slide 60, and the crossbeam 21 form a parallel four-bar linkage mechanism. 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 crossbeam 21. When the parallel four-bar linkage swings within a certain range, the extension direction of the crossbeam 21 can always be parallel to the upper surface of the cabin 1.

[0127] The auxiliary electrical equipment of the radiation inspection equipment can be arranged and installed in the accommodating space 11B of the cabin 11. Some power distribution and control lines 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.

[0128] Figure 8 illustrates an alternative embodiment of the radiation inspection device shown in Figures 1 to 7. In this embodiment, unlike Figures 1 to 7, the second side arm 23 further includes a roller 234, which is disposed below and rotatably mounted relative to the second arm segment 232. In this embodiment, the bottom end of the second side arm 23 and the bottom end of the mounting base 10 can be adjusted to maintain a constant height difference before and after the support frame 20 moves relative to the mounting base 10, wherein this height difference is the height difference between the bottom end of the second arm segment 232 and the bottom edge of the roller. For any parts of the embodiment corresponding to Figure 8 not described herein, please refer to the relevant descriptions of the embodiments shown in Figures 1 to 7.

[0129] During installation and commissioning of the radiation inspection equipment of this embodiment, the crossbeam 21 of the support frame 20, the first arm segment 231 of the first side arm 22 and the second side arm 23, the accelerator serving as the radiation source 31, and the first detection part 321 and the second detection part 322 of the detection device 32 are connected as a whole. Driven by the two connecting rods 50, they move together relative to the cabin 11. While changing the size of the scanning channel P, the scanning height of the scanning device 30 is also changed. Since the relative position of the target point 31A and the detection device 32 remains unchanged, the beam surfaces of the radiation source 31 and the detection device 32 can be made coplanar without adjustment.

[0130] The working principle of the radiation inspection equipment according to the present disclosure will be described below with reference to Figures 3 to 6.

[0131] As shown in Figures 3 and 4, the slide 60 moves to the left end of the cabin 11, away from the second side arm 23. The connecting rod 50 tilts upwards towards the second side arm 23 at a relatively small angle to the horizontal plane, resulting in a low height and relatively wide width for the scanning channel P. Simultaneously, the radiation source 31 of the scanning device 30 is in a low position, and the target point 31A of the radiation source 31, its emitted radiation beam B, and the detection device 32 are also in a low position. At this time, the radiation inspection equipment, as shown in Figure 3, is suitable for inspecting objects O without a chassis, with an extremely low chassis, or with a chassis requiring scanning at a moderate height; or, as shown in Figure 4, it is suitable for inspecting objects O without a chassis, with an extremely low chassis, or with a chassis requiring scanning at a low height and excessively wide width.

[0132] As shown in Figure 5, the slide 60 moves to the right end of the cabin 11 near the second side arm 23, with the connecting rod 50 in a vertical position, so that the scanning channel P is at a high position with a normal width. Simultaneously, the radiation source 31 of the scanning device 30 is at a high position, and the target point 31A of the radiation source 31, its emitted radiation beam B, and the detection device 32 are also at a high position. At this time, the radiation inspection equipment is suitable for inspecting objects O with excessively high heights whose chassis do not require scanning inspection. The width of the inspected object O in Figure 5 can be set to a standard width.

[0133] As shown in Figure 6, the slide 60 moves to the right end of the cabin 11 near the second side arm 23. The connecting rod 50 tilts upwards towards the second side arm 23 at a relatively large angle to the horizontal plane, so that the height of the scanning channel P is between the high position in Figure 5 and the low position in Figures 3-4, and its width is relatively wide. At the same time, the radiation source 31 of the scanning device 30 is between the high and low positions, and the target point 31A of the radiation source 31, its emitted radiation beam B, and the detection device 32 are also between the high and low positions. At this time, the radiation inspection equipment is suitable for inspected objects O whose chassis does not require scanning inspection and whose height and width are slightly excessive.

[0134] Figures 3 to 6 above only show a few variations of the scanning channel P of the radiation inspection equipment in this embodiment. In actual operation, the radiation inspection equipment can vary in more forms by changing the position of the slide 60 and the angle of the connecting rod 50 according to the width and height of the object being inspected O, thereby making it suitable for radiation scanning inspection of a wider variety of objects O. As can be seen from the above description, the radiation scanning equipment of this embodiment can change the size and scanning range of the scanning channel P according to the object being inspected O. For example, the scanning channel P and scanning range can be adjusted in a timely manner according to different vehicles and different chassis heights, thereby meeting the scanning requirements of different objects O. Furthermore, the radiation inspection equipment of this embodiment can also achieve changes in target position and scanning range, while the beam surfaces of the radiation source and the detection device can be made coplanar without adjustment.

[0135] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and not to limit them; although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this disclosure or equivalent substitutions can be made to some technical features, all of which should be covered within the scope of the technical solutions claimed in this disclosure.

Claims

1. A radiation inspection device, comprising: Mounting base (10); Support frame (20); A connecting rod (50), together with the support frame (20) and the mounting base (10), defines a scanning channel (P) for the object to be inspected (O) to pass through. A first end of the connecting rod (50) is rotatably connected to the mounting base (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), includes a radiation source (31) and a detection device (32), the scanning device (30) being configured to perform radiation inspection on the object (O) passing through the scanning channel (P); The connecting rod (50) is configured to move the support frame (20) relative to the mounting base (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, wherein the radiation source (31) is fixed relative to the detection device (32).

3. The radiation inspection equipment according to claim 1 or 2, wherein... The connecting rod (50) rotates relative to the mounting base (10) about a first axis parallel to the scanning channel (P); and / or The connecting rod (50) rotates relative to the support frame (20) about a second axis parallel to the scanning channel (P).

4. The radiation inspection equipment according to any one of claims 1 to 3, wherein The radiation inspection equipment includes multiple 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 extension and retraction.

5. The radiation inspection device according to any one of claims 1 to 4, wherein the radiation inspection device further comprises a drive device (70), the drive device (70) being driven connected to the connecting rod (50) and configured to drive the connecting rod (50) to move the support frame (20) relative to the mounting base (10).

6. The radiation inspection device according to claim 5, wherein the radiation inspection device further comprises: Information acquisition device (80) is configured to acquire information about the object being inspected (O); and A control device (40), coupled to the information acquisition device (80) and the drive device (70), is configured to control the operation of the drive device (70) based on information about the object (O) being inspected acquired by the information acquisition device (80).

7. The radiation inspection equipment according to any one of claims 1 to 6, wherein The first end of the connecting rod (50) and the first relatively rotating part (H1) of the mounting base (10) are variably positioned relative to the mounting base (10); and / or The second end of the connecting rod (50) and the second relative rotating part (H2) of the support frame (20) are variably positioned relative to the support frame (20).

8. The radiation inspection equipment according to claim 7, wherein... The mounting base (10) includes a housing (11) having a receiving space (11A); The radiation source (31) is located in the accommodating space (11A), and the cabin wall (111) of the cabin body (11) is provided with a clearance opening (11B) to provide space for the movement of the support frame (20).

9. The radiation inspection equipment according to claim 7 or 8, wherein The first relatively rotating part (H1) is movable in the horizontal plane relative to the mounting base (10); and / or The second relatively rotating part (H2) is movable in the horizontal plane relative to the support frame (20); and / or The first relative rotating part (H1) is movable relative to the mounting base (10) in a direction perpendicular to the extending direction of the scanning channel (P); and / or The second relative rotating part (H2) is movable relative to the support frame (20) in a direction perpendicular to the extension direction of the scanning channel (P).

10. The radiation inspection device according to any one of claims 7 to 9, wherein the radiation inspection device further comprises a slide (60), a first end of the connecting rod (50) being rotatably connected to the slide (60), the slide (60) being mounted on the mounting base (10) such that the position of the first relatively rotating part (H1) relative to the mounting base (10) is variable.

11. The radiation inspection device according to any one of claims 7 to 10, wherein the radiation inspection device further comprises a drive device (70), the drive device (70) being drivenly connected to the connecting rod (50) and configured to drive the connecting rod (50) to move the support frame (20) relative to the mounting base (10), the drive device (70) comprising: The first drive unit (71) is configured to drive the connecting rod (50) to rotate relative to the mounting base (10) and the support frame (20); and The second drive unit (72) is configured to drive the first relative rotating part (H1) to move relative to the mounting base (10) and / or drive the second relative 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, wherein the support frame (20) comprises: Crossbeam (21); A first side arm (22), the upper end of which 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); and The second side arm (23) is fixedly connected at its upper end to the second end of the crossbeam (21). The second side arm (23) is located away from the mounting base (10) relative to the first side arm (22). The detection device (32) is mounted on the crossbeam (21) and / or the second side arm (23).

13. The radiation inspection device according to claim 12, wherein the length of the second side arm (23) is adjustable such that the bottom end of the second side arm (23) and the bottom end of the mounting base (10) can be adjusted back and forth on the support frame (20) relative to the mounting base (10) to maintain a constant height difference.

14. The radiation inspection device according to claim 13, wherein the second side arm (23) comprises: A first arm segment (231), the upper end of which is connected to the crossbeam (21), and the detection device (32) includes a first detection part (321) disposed on the first arm segment (231); and The second arm segment (232) is telescopically connected at its upper end to the lower end of the first arm segment (231).

15. The radiation inspection device according to claim 14, further comprising a 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 or 15, wherein the second side arm (23) further includes a roller (234) disposed below the second arm segment (232) and rotatably disposed relative to the second arm segment (232).

17. The radiation inspection equipment according to any one of claims 12 to 16, wherein Along the extension direction of the crossbeam (21), the first side arm (22) gradually tilts from its upper end to its lower end away from the second side arm (23) and forms an angle with the vertical direction; and / or The second side arm (23) is set vertically.

18. The radiation inspection apparatus according to any one of claims 12 to 17, wherein the detection device (32) comprises: The first detection unit (321) is disposed on the second side arm (23); and / or The second detection unit (322) is disposed on the crossbeam (21).

19. The radiation inspection device according to any one of claims 12 to 18, wherein the second end of the connecting rod (50) is rotatably connected to the first end of the crossbeam (21).

20. The radiation inspection equipment according to any one of claims 12 to 19, wherein The connecting rod (50) rotates relative to the mounting base (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 part (H1) is movable relative to the mounting base (10) along the extension direction of the crossbeam (21); and / or The second relative rotating part (H2) is movable relative to the support frame (20) along the extension direction of the crossbeam (21).

Images