Radiation source device and radiation inspection equipment

Abstract

The present disclosure provides a radiation source device and a radiation inspection apparatus. The radiation source device includes: a radiation body including a radiation source having a plurality of radiation parts and a shielding cover connected to the radiation source and covering the radiation source outside, the shielding cover having a beam exit part for the radiation beam output by the radiation source; a mounting seat configured to carry the radiation body; and a radiation source position adjusting mechanism connected between the shielding cover and the mounting seat, the radiation source position adjusting mechanism being configured to adjust and lock the relative position between the radiation body and the mounting seat. The radiation source device and the radiation inspection apparatus include the radiation source device. The radiation source device and the radiation inspection apparatus of the present disclosure are beneficial to reducing the difficulty of adjusting the working position of the radiation source, improving the adjustment efficiency, and are beneficial to reducing the overall weight and cost of the radiation inspection device using the radiation source device.

Description

Technical Field

[0001] The present disclosure relates to the technical field of radiation inspection, and particularly relates to a radiation source device and a radiation inspection device. Background Art

[0002] In the related art of radiation inspection devices, when the radiation source includes a single radiation part, it is relatively convenient to adjust the radiation source, the collimator, and the detector to appropriate working positions.

[0003] However, for a multi-target radiation source with multiple radiation parts, if multiple radiation parts share a set of collimators and detectors, it is difficult to adjust the radiation source, the collimator, and the detection device to appropriate working positions, and the adjustment efficiency is low. In addition, when installing the radiation source, it is necessary to increase shielding in the cabin where the radiation source is installed, and the weight of the cabin and the radiation inspection device as a whole is relatively large. Summary of the Invention

[0004] The purpose of the present disclosure is to provide a radiation source device and a radiation inspection device.

[0005] The first aspect of the present disclosure provides a radiation source device, which includes: a radiation body, including a radiation source having multiple radiation parts and a shielding cover connected to the radiation source and covering the radiation source, the shielding cover having a beam output part for the radiation source to output a beam; a mounting seat configured to carry the radiation body; and a radiation source position adjustment mechanism connected between the shielding cover and the mounting seat, the radiation source position adjustment mechanism being configured to adjust and lock the relative position between the radiation body and the mounting seat.

[0006] In the radiation source device of some embodiments, the radiation source includes multiple radiation parts arranged at intervals in a first direction, and the radiation source position adjustment mechanism is configured to: change the rotation angle of the radiation body relative to the mounting seat around an axis along the first direction; and / or change the relative position of the radiation body relative to the mounting seat in the first direction; and / or change the relative position of the radiation body relative to the mounting seat in a second direction perpendicular to the first direction.

[0007] In the radiation source device of some embodiments, the radiation source position adjustment mechanism includes at least one rotation angle adjustment part, and the rotation angle adjustment part includes: a connecting shaft fixedly connected to the shielding cover; a bearing seat fixedly connected to the mounting seat, the connecting shaft being rotatably arranged on the bearing seat; and a locking part having a locked state and an unlocked state, in the locked state, the locking part is configured to lock the relative position between the connecting shaft and the bearing seat, and in the unlocked state, the locking part is configured to release the locking of the relative position between the connecting shaft and the bearing seat so that the connecting shaft can rotate relative to the bearing seat.

[0008] In the radiation source device of some embodiments, the locking portion includes a setscrew, the bearing seat has a threaded hole arranged radially along the connecting shaft, the setscrew is engaged with the threaded hole, in the locked state, the setscrew is in abutting engagement with the connecting shaft, and in the unlocked state, the setscrew is spaced apart from the connecting shaft.

[0009] In the radiation source device of some embodiments, the fixed connection position of the connecting shaft and the shielding cover is variably arranged; and / or the fixed connection position of the bearing seat and the mounting seat is variably arranged.

[0010] In the radiation source device of some embodiments, the beam exit area of the beam exit portion gradually increases from the side close to the radiation source to the side far from the radiation source.

[0011] The second aspect of the present disclosure provides a radiation inspection device for performing radiation inspection on an object to be inspected. The radiation inspection device includes: a device main body; a radiation source device, which is the radiation source device described in the first aspect of the present disclosure, and the mounting seat of the radiation source device is mounted on the device main body; a collimator, which is arranged outside the beam exit portion of the shielding cover and is configured to limit the beam shape of the beam output by the radiation source, and the collimator is mounted on the device main body; and a detection device, which is configured to detect the rays after the beam output by the radiation source of the radiation source device passes through the object to be inspected and / or the rays scattered by the object to be inspected.

[0012] In the radiation inspection device of some embodiments, the collimator is relatively fixedly arranged with respect to the mounting seat of the radiation source device.

[0013] In the radiation inspection device of some embodiments, at least a part of the detection device is arranged such that its position is adjustable with respect to the mounting seat of the radiation source device.

[0014] In the radiation inspection device of some embodiments, the radiation source includes a plurality of the radiation portions arranged at intervals in a first direction, and at least a part of the detection device is arranged such that its position is adjustable in a second direction perpendicular to the first direction with respect to the mounting seat of the radiation source device.

[0015] In some embodiments of the radiation inspection equipment, the equipment body includes a support frame, and the mounting base is fixedly mounted on the support frame, wherein the equipment body also includes a column connected to the support frame, and the detection device includes a vertical detection arm, and the vertical detection arm is mounted on the column, wherein the relative position of the vertical detection arm to the column is adjustably set and / or the relative position of the column to the support frame is adjustably set; and / or the equipment body also includes a bottom beam connected to the support frame, and the detection device also includes a horizontal detection arm, and the horizontal detection arm is mounted on the bottom beam, wherein the relative position of the horizontal detection arm to the bottom beam is adjustably set and / or the relative position of the bottom beam to the support frame is adjustably set.

[0016] In some embodiments of the radiation inspection equipment, the column includes a plurality of vertical support sections, the vertical detection arm includes a plurality of vertical detection sections, and the plurality of vertical detection sections are respectively installed on the plurality of vertical support sections, wherein the relative position of each vertical detection section and the corresponding vertical support section can be adjusted and / or the relative position of the vertical support section corresponding to each vertical detection section and the support frame can be adjusted; and / or the bottom beam includes a plurality of horizontal support sections, the horizontal detection arm includes a plurality of horizontal detection sections, and the plurality of horizontal detection sections are respectively installed on the plurality of horizontal support sections, wherein the relative position of each horizontal detection section and the corresponding horizontal support section can be adjusted and / or the relative position of the horizontal support section corresponding to each horizontal detection section and the support frame can be adjusted.

[0017] In the radiation source device provided by the present disclosure, the radiation source is a multi-target radiation source including multiple radiation parts. A shielding cover fixed relative to the radiation source is arranged outside the radiation source, and the position of the shielding cover is adjusted by the radiation source position adjustment mechanism to simultaneously change the positions of the radiation parts of the radiation source, which is beneficial to reducing the difficulty of adjusting the working position of the radiation source and improving the adjustment efficiency. At the same time, the radiation source device comes with a shielding cover, and there is no need to perform special shielding protection on the radiation source when installing the radiation source device. The shielding cover can be arranged to be relatively compact according to the volume and shape of the radiation source, which is beneficial to reducing the overall weight and cost of the radiation inspection device using the radiation source device.

[0018] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of the present application. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure. In the drawings:

[0020] Figure 1 Schematic diagram of the principle structure of the radiation inspection device according to an embodiment of the present disclosure.

[0021] Figure 2 Schematic diagram of the principle structure of the radiation source device of the radiation inspection device according to an embodiment of the present disclosure.

[0022] Figure 3 Schematic diagram of the connection structure between a vertical detection section of the radiation inspection device according to an embodiment of the present disclosure and the vertical support section of the corresponding column.

[0023] Figure 4 is Figure 3 Partial structure schematic diagram of a position of the connection structure shown.

[0024] Figure 5 Schematic diagram of the connection structure between another vertical detection section of the radiation inspection device according to an embodiment of the present disclosure and the vertical support section of the corresponding column.

[0025] Figure 6 is Figure 5 Partial structure schematic diagram of a position of the connection structure shown.

[0026] Figure 7 is Figure 5 Partial structure schematic diagram of another position of the connection structure shown.

[0027] Figure 8 Schematic diagram of the connection structure between a horizontal detection arm of the radiation inspection device according to an embodiment of the present disclosure and the bottom beam.

[0028] Figure 9 Schematic diagram of the connection structure between another horizontal detection arm of the radiation inspection device according to an embodiment of the present disclosure and the bottom beam. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present disclosure.

[0030] Unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0031] In the description of the present disclosure, it should be understood that the use of terms such as "first" and "second" to limit components is merely for the convenience of distinguishing the corresponding components. Without otherwise stating, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of the present disclosure.

[0032] In the description of the present disclosure, it should be understood that the orientation or positional relationship indicated by orientation terms such as "front, rear, top, bottom, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present disclosure and simplifying the description. Without contrary explanation, these orientation terms do not indicate and 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 limiting the scope of protection of the present disclosure; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0033] In the following description, the so-called "first direction" is Figures 1 to 9 the X direction marked in Figures 1 to 9 the so-called "second direction" refers to Figures 1 to 9 the Y direction marked in Figures 1 to 9 the so-called "third direction" refers to

[0034] As Figures 1 to 9 shown, the embodiments of the present disclosure provide a radiation inspection device and its radiation source device 20.

[0035] As Figure 1 and Figure 2 shown, the radiation source device 20 provided by the embodiments of the present disclosure mainly includes a radiation body 21, a mounting base 22, and a radiation source position adjustment mechanism 23.

[0036] like Figure 1 and Figure 2 As shown, the radiation body 21 mainly includes a radiation source 211 having a plurality of radiation portions 2111 and a shielding cover 212 connected to the radiation source 211 and covering the outside of the radiation source 211. The shielding cover 212 has a beam output portion 2122 for the radiation source 211 to output a beam. The mounting seat 22 is configured to carry the radiation body 21. The radiation source position adjustment mechanism 23 is connected between the shielding cover 212 and the mounting seat 22, and the radiation source position adjustment mechanism 23 is configured to adjust and lock the relative position of the radiation body 21 and the mounting seat 22. The shielding cover 212 and the radiation source 211 can be relatively fixedly arranged, for example.

[0037] In the radiation source device 20 of the embodiment of the present disclosure, the radiation source 211 is a multi-target radiation source including a plurality of radiation parts 2111. A shielding cover 212 is provided outside the radiation source 211 and is connected to the radiation source 211, for example, relatively fixed. The position of the shielding cover 212 is adjusted by the radiation source position adjustment mechanism 23 to simultaneously change the positions of the radiation parts 2111 of the radiation source 211, which helps to reduce the difficulty of adjusting the working position of the radiation source and improve the adjustment efficiency. At the same time, the radiation source device 20 comes with the shielding cover 212. When installing the radiation source device 20, there is no need to perform special shielding protection on the radiation source 211. The shielding cover 212 can be arranged to be relatively compact according to the volume and shape of the radiation source 211, which helps to reduce the overall weight and cost of the radiation inspection device using the radiation source device 20.

[0038] The radiation inspection equipment using the radiation source device 20 of the embodiment of the present disclosure facilitates the adjustment of the position of the radiation source, thereby facilitating rapid adjustment of the working positions of the radiation source, the collimator, and the detection device, thereby facilitating rapid adjustment of the best imaging effect of the scanned image.

[0039] like Figures 1 to 9 As shown, the radiation inspection device provided in the embodiment of the present disclosure is used to perform radiation inspection on the inspected object. The inspected object may be a vehicle, a container, etc. The radiation inspection device mainly includes an equipment body 10, a radiation source device 20, a collimator 30 and a detection device 40. The radiation source device 20 is a radiation source device of an embodiment of the present disclosure, and is installed on the equipment body 10. The collimator 30 is arranged outside the beam exit portion 2122 of the shielding cover 212, and is configured to limit the beam shape of the beam output by the radiation source 211. The collimator 30 is installed on the equipment body 10. The detection device 40 is configured to detect the rays after the beam output by the radiation source 211 of the radiation source device 20 passes through the object to be inspected and / or the rays scattered by the object to be inspected.

[0040] The radiation inspection equipment provided by the embodiment of the present disclosure has the advantages of the radiation source device 20 provided by the embodiment of the present disclosure.

[0041] The following will describe in detail the radiation inspection device and its radiation source device according to the embodiments of the present disclosure in conjunction with Figures 1 to 9 the accompanying drawings.

[0042] As Figures 1 to 9 shown, the radiation inspection device provided by the embodiments of the present disclosure includes a device main body 10, a radiation source device 20, a collimator 30, a detection device 40, and a ramp 50. The object to be inspected is, for example, a vehicle 90. The radiation source device 20, the collimator 30, and the detection device 40 of the radiation inspection device form a scanning channel, and the ramp 50 extends along the extension direction of the scanning channel for the object to be inspected to pass through it. In this embodiment, the extension direction of the scanning channel is the second direction Y. During the inspection, when the object to be inspected passes through the scanning channel along the ramp 50, it is scanned and inspected by the radiation inspection device.

[0043] As Figure 1 , Figure 8 and Figure 9 shown, the device main body 10 mainly includes a support frame 11, two columns extending along the third direction Z connected to the support frame 11, and a bottom beam 15 connected to the bottom of the support frame 11.

[0044] In this embodiment, the support frame 11 includes a first support portion 111 located above, a second support portion 112 located below, and two hydraulic cylinders 113 connected between the first support portion 111 and the second support portion 112. The two hydraulic cylinders 113 are spaced apart along the first direction X on both sides of the device main body 10. Through the telescopic movement of the piston rods of the hydraulic cylinders 113 along the third direction Z, the first support portion 111 can move up and down relative to the second support portion 112. In this embodiment, the upper and lower ends of the hydraulic cylinders 113 are respectively fixedly connected to the first support portion 111 and the second support portion 112, so that there is only a relative position change in the third direction Z between the first support portion 111 and the second support portion 112, and they are relatively fixed in the first direction X and the second direction Y.

[0045] A cabin S is provided on the first support portion 111 of the support frame 11, and the radiation source device 20 is installed in the cabin S. An installation wall 12 is provided below the cabin S, and an opening is provided in the middle of the installation wall 12, and the collimator 30 is fixedly installed at the opening of the installation wall 12.

[0046] The two columns are arranged at intervals along the first direction X on both sides of the cabin S. Each column includes two vertical support segments. As Figure 1 shown, the two vertical support segments include a first vertical support segment 13 connected to the first support portion 111 of the support frame 11 and a second vertical support segment 14 connected to the second support portion 112 of the support frame 11.

[0047] The bottom beam 15 extends along the first direction X, and its two ends are respectively installed on the second support portion 112.

[0048] As Figure 1 and Figure 2 shown, the radiation source device 20 is installed on the device main body 10, located within the cabin S of the device main body 10, and above the collimator 30.

[0049] As Figure 1 and Figure 2 shown, the radiation source device 20 mainly includes a radiation body 21, a mounting base 22, and a radiation source position adjustment mechanism 23. As Figure 1 and Figure 2 shown, the radiation body 21 mainly includes a radiation source 211, a shielding cover 212, and a beam exit portion 2122.

[0050] The radiation source 211 has a plurality of radiation portions 2111. As Figure 1 shown, the plurality of radiation portions 2111 are arranged at intervals in the first direction X. As Figure 1 and Figure 2 shown, the number of the plurality of radiation portions 2111 is, for example, three. The radiation portion 2111 can be, for example, an X-ray source or a γ-ray source, etc. As Figure 2 shown, the plurality of radiation portions 2111 are integrated together, relatively fixed to each other, and constitute the radiation source 211. The number, type, and arrangement mode of the radiation portions of the radiation source can be set according to the inspection requirements of the radiation inspection equipment where the radiation source device is located.

[0051] The shielding cover 212 is fixedly disposed relative to the radiation source 211 and covers the outside of the radiation source 211. The beam exit area of the beam exit portion 2122 gradually increases from the side close to the radiation source 211 to the side far from the radiation source 211. The beam exit portion 2122 can play a role in restricting the beam divergence angle of the radiation source 211 and providing protection.

[0052] A wire harness exit 2121 can be opened on the shielding cover 212 corresponding to each radiation portion 2111. The wire harness exit 2121 is for the wire harness for the electrical connection and signal connection between the radiation portion 2111 and the outside to pass through. In this embodiment, the shielding cover 212 is integrally cylindrical. A wire harness exit 2121 corresponding to each radiation portion 2111 is opened at the top of the shielding cover 212.

[0053] The mounting base 22 is configured to carry the radiation body 21. In this embodiment, the mounting base 22 mainly includes a mounting plate, and the mounting plate is fixedly connected to the inner wall of the cabin S of the first support portion 111.

[0054] The radiation source position adjustment mechanism 23 is connected between the shielding cover 212 and the mounting base 22, and the radiation source position adjustment mechanism 23 is configured to adjust and lock the relative position between the radiation body 21 and the mounting base 22.

[0055] Figures 1 to 9 In the radiation source device of the illustrated embodiment, the radiation source 211 includes three radiation parts 2111 arranged along the first direction X, and the radiation source position adjusting mechanism 23 is configured to change the rotation angle of the radiation body 21 relative to the mounting base 22 about the axis along the first direction X.

[0056] Figures 1 to 9 In the radiation source device of the illustrated embodiment, the radiation source position adjusting mechanism 23 includes two rotation angle adjusting parts. The two rotation angle adjusting parts are respectively a first rotation angle adjusting part 231 and a second rotation angle adjusting part 232. The structures and adjustment principles of the two rotation angle adjusting parts are the same, and they are symmetrically arranged on both sides of the radiation body 21 along the first direction X. Only the structure of the first rotation angle adjusting part 231 will be described below as an example.

[0057] As Figure 2 shown, the rotation angle adjusting part 231 includes a connecting shaft 2311, a bearing seat 2312 and a locking part. The connecting shaft 2311 is fixedly connected to the shielding cover 212. The bearing seat 2312 is fixedly connected to the mounting base 22. The connecting shaft 2311 is rotatably arranged on the bearing seat 2312. The locking part has a locked state and an unlocked state. In the locked state, the locking part is configured to lock the relative position of the connecting shaft 2311 and the bearing seat 2312. In the unlocked state, the locking part is configured to release the locking of the relative position of the connecting shaft 2311 and the bearing seat 2312 so that the connecting shaft 2311 can rotate relative to the bearing seat 2312.

[0058] In the radiation source device of some embodiments, the locking part includes a set screw 2314. The bearing seat 2312 has a threaded hole arranged radially along the connecting shaft 2311. The set screw 2314 cooperates with the threaded hole. In the locked state, the set screw 2314 abuts and cooperates with the connecting shaft 2311. In the unlocked state, the set screw 2314 is spaced from the connecting shaft 2311. The setting position and number of the set screws 2314 can be set according to the required locking force.

[0059] The relative rotation between the connecting shaft 2311 and the bearing seat 2312 can be driven by a driving device. The driving device can be, for example, a motor or a hydraulic motor, etc. A transmission device such as a gear transmission mechanism or a gear and rack transmission mechanism can also be arranged between the driving device and the connecting shaft 2311. Of course, if the volume of the radiation body 21 is small and the weight is light, the driving device and / or the transmission device can also not be arranged, and the connecting shaft 2311 can be rotated relative to the bearing seat 2312 manually.

[0060] In an embodiment not shown, the radiation source position adjusting mechanism 23 may also be configured to change the relative position of the radiation body 21 with respect to the mounting base 22 in the first direction X; and / or change the relative position of the radiation body 21 with respect to the mounting base 22 in the second direction Y perpendicular to the first direction X. The adjusting means may be, for example, that the fixed connection position between the connecting shaft 2311 and the shielding cover 212 is variably set and / or the fixed connection position between the bearing seat 2312 and the mounting base 22 is variably set. The adjusting mechanism may adopt, for example, an adjusting mechanism having the same working principle and structure as the detecting arm position adjusting mechanism 60 described later.

[0061] The collimator 30 is mounted on the device main body 10, disposed outside the beam exit portion 2122 of the shielding cover 212, and configured to limit the beam shape of the beam output by the radiation source 211. As Figure 1 shown, the collimator 30 is fixedly mounted at the opening of the mounting wall 12. In this embodiment, the mounting base 22 of the collimator 30 and the radiation source device 20 are relatively fixed.

[0062] In an embodiment not shown, the collimator 30 may also be adjustable in position with respect to the device main body 10. The collimator 30 itself may also be configured such that the position of a partial structure is adjustable with respect to the remaining structure to adjust the collimation slit width and the like.

[0063] In this embodiment, the detecting device 40 is configured to detect the rays after the beam output by the radiation source 211 of the radiation source device 20 passes through the object to be inspected. In an embodiment not shown, the detecting device 40 may also be configured to detect the rays scattered by the object to be inspected.

[0064] In some embodiments, at least a part of the detecting device 40 is disposed such that its position is adjustable with respect to the mounting base 22 of the radiation source device 20. In this embodiment, the radiation source includes a plurality of radiation portions 2111 arranged at intervals in the first direction X, and at least a part of the detecting device 40 is disposed such that its position is adjustable with respect to the mounting base 22 of the radiation source device 20 in the second direction Y perpendicular to the first direction X.

[0065] As Figure 1 shown, the detecting device 40 includes a vertical detecting arm extending along the third direction Z and a horizontal detecting arm 43 extending along the first direction X. The two vertical detecting arms are disposed on both sides of the device main body 10 at intervals in the first direction X, and the horizontal detecting arm 43 is located between the two vertical detecting arms at the bottom of the device main body 10. Each detecting arm includes a detector for detecting rays. Among them, the relative position between the vertical detecting arm and the column is adjustable and / or the relative position between the column and the support frame 11 is adjustable; and / or the relative position between the horizontal detecting arm 43 and the bottom beam 15 is adjustable and / or the relative position between the bottom beam 15 and the support frame 11 is adjustable.

[0066] In some embodiments, the upright column includes a plurality of vertical support segments, and the vertical detection arm includes a plurality of vertical detection segments. The plurality of vertical detection segments are respectively installed on the plurality of vertical support segments. Among them, the relative positions of the vertical detection segments and the corresponding vertical support segments are set to be adjustable, and / or the relative positions of the vertical support segments corresponding to the vertical detection segments and the support frame are set to be adjustable.

[0067] In this embodiment, each vertical detection arm includes two vertical detection segments, which are the first vertical detection segment 41 installed on the first vertical support segment 13 and the second vertical detection segment 42 installed on the second vertical support segment 14 respectively. Each vertical detection segment includes a detector for detecting rays.

[0068] In this embodiment, the relative positions of the vertical detection segments and the corresponding vertical support segments are set to be adjustable. In this embodiment, the positions of the vertical detection segments and the corresponding vertical support segments along the second direction Y are adjustable.

[0069] The segmented vertical support arms and the segmented vertical detection arms are beneficial to realizing the height adjustment of the radiation source device 20 and the segmented adjustment of the vertical detection arms.

[0070] The following Figures 3 to 4 illustrates the detector position adjustment mechanism 60 for adjusting the position between the first vertical support segment 13 and the first vertical detection segment 41 in the connection structure of the first vertical support segment 13 and the first vertical detection segment 41 in an embodiment of the present disclosure. Among them, the connection structure of the second vertical support segment 14 and the second vertical detection segment 42 and its detector position adjustment mechanism have the same working principle and structure as the detector position adjustment mechanism 60, so they will not be described repeatedly.

[0071] As Figure 3 and Figure 4 shown, the detector position adjustment mechanism 60 includes a detector position adjustment part. In this embodiment, the detector position adjustment mechanism 60 includes two detector position adjustment parts arranged at intervals along the third direction Z. The two detector position adjustment parts include the first detector position adjustment part 61 located above and the second detector position adjustment part 62 located below. Among them, the structures and adjustment principles of the first detector position adjustment part 61 and the second detector position adjustment part 62 are the same. The following only describes the structure and adjustment process of the first detector position adjustment part 61. In an embodiment not shown, the number of detector position adjustment parts included in the detector position adjustment mechanism 60 can be set according to the adjustment requirements.

[0072] As Figure 4 shown, the first detector position adjustment part 61 mainly includes a first adjustment support 611, a second adjustment support 612, an adjustment screw 613 and a locking screw 614.

[0073] The first adjusting support 611 is fixedly connected to the first vertical detection section 41. The first adjusting support 611 includes a support body 6111 extending along the second direction Y and a lug 6112 provided on the support body 6111. One end of the support body 6111 is connected to the first vertical detection section 41 by screws. A strip hole 6113 with a length direction extending along the second direction Y is provided on the support body 6111. The first vertical support section 13 is provided with a threaded hole extending along the first direction X. A locking screw 614 passes through the strip hole 6113 and is in threaded fit with the threaded hole of the first vertical support section 13. After the locking screw 614 is tightened, the relative position of the first adjusting support 611 and the first vertical support section 13 is locked by the locking screw 614, so that the first vertical detection section 41 and the first vertical support section 13 are fixedly connected. To increase the connection strength between the first vertical detection section 41 and the first vertical support section 13, a plurality of locking screws 614 can be provided corresponding to the strip holes 6113 and threaded holes. Figures 3 to 4 In the illustrated embodiment, two locking screws 614 are provided corresponding to the strip holes 6113 and threaded holes.

[0074] The second adjusting support 612 includes two ear seats with threaded holes, and the lug 6112 is located between the two ear seats.

[0075] Two adjusting screws 613 are respectively screwed onto the two ear seats from the outside of the second adjusting support 612, and the two adjusting screws 613 can be respectively screwed to abut against the end surface of the lug 6112 along the second direction Y.

[0076] When the position of the first vertical detection section 41 needs to be adjusted, loosen the locking screw 614, and then rotate the two adjusting screws 613 respectively. By pushing the lug 6112 to move along the second direction Y through the adjusting screws 613, and further pushing the first adjusting support 611 and the first vertical support section 13 to move along the second direction Y until the first vertical support section 13 moves in place, and then tighten the locking screw 614 to complete the position adjustment of the first vertical detection section 41.

[0077] In an embodiment not shown, the first vertical detection section 41 and the first vertical support section 13 can also be fixedly connected by locking the relative positions of the two adjusting screws 613 and the ear seats. For example, locking nuts that are in threaded fit with the adjusting screws 613 can be provided. After the position of the first vertical detection section 41 is adjusted, make the end surfaces of the two adjusting screws 613 both abut against the lug 6112, and then lock the positions of the corresponding adjusting screws 613 through the locking nuts. The locking nuts and the locking screws can be provided simultaneously, or only one of them can be provided.

[0078] The following combination Figures 5 to 7The detector position adjustment mechanism 60 for position adjustment between the first vertical support section 13 and the first vertical detection section 41 in the connection structure of the first vertical support section 13 and the first vertical detection section 41 according to another embodiment of the present disclosure is described.

[0079] Figures 5 to 7 The shown detector position adjustment mechanism 60 and Figures 3 to 4 The difference between the shown detector position adjustment mechanism 60 is that:

[0080] First, the structures and cooperation relationships of the lug 6112 of the first adjustment support 611, the second adjustment support 612, and the adjustment screw 613 in the first detector position adjustment part 61 are different, and the first detector position adjustment part 61 further includes a driving device. The number of adjustment screws 613 is one, and the driving device is drivingly connected to the adjustment screw 613. A threaded hole cooperating with the adjustment screw 613 is provided on the lug 6112. The adjustment screw 613 is rotatable with respect to the two ear seats of the second adjustment support 612 but is not movable along the axial direction of the adjustment screw 613 (i.e., the second direction Y). When adjusting the position of the first vertical detection section 41, the driving device drives the adjustment screw 613 to rotate, and the rotation of the adjustment screw 613 drives the lug 6112 to move along the second direction Y. Since there is no relative movement between the adjustment screw 613 and the ear seat along the second direction Y, the position adjustment between the first vertical detection section 41 and the first vertical support section 13 can be achieved. The driving device can be, for example, a stepping motor 615.

[0081] Second, Figures 5 to 7 In the shown detector position adjustment mechanism 60, the structure of the second detector position adjustment part 62 is not completely the same as that of its first detector position adjustment part 61. As Figure 7 shown, in the second detector position adjustment part 62, the support body 6211 of the first adjustment support 621, the second adjustment support 622, and the locking screw 624 are all the same as the corresponding structures of the first detector position adjustment part 61. The difference between the second detector position adjustment part 62 and the first detector position adjustment part 61 is that the second detector position adjustment part 62 does not have a driving device, the hole on the lug 6212 is a clearance hole, and correspondingly, a guide rod 623 that slidably cooperates with the clearance hole of the lug 6212 corresponding to the adjustment screw 613 is provided. The guide rod 623 has no relative movement with the second adjustment support 622 along the second direction Y. The second detector position adjustment part 62 can play a role in guiding the movement direction of the first vertical detection section 41 during position adjustment and locking the relative position between the first vertical detection section 41 and the first vertical support section 13 when the relative position adjustment between the first vertical detection section 41 and the first vertical support section 13 is in place.

[0082] In an embodiment not shown, the guide rod 623 can also be set in the form of a threaded rod, and the corresponding lug 6212 is provided with a threaded hole that mates with the thread on the threaded rod. When adjusting the position of the first vertical detection section 41, the lug 6212 moves along the second direction Y following the first vertical detection section 41, and the threaded rod rotates due to the movement of the lug 6212 to prevent affecting the movement of the lug 6212.

[0083] Figures 5 to 7 For the parts not described in the corresponding embodiment, reference can be made to Figures 3 to 4 the relevant descriptions of the corresponding embodiment.

[0084] In an embodiment not shown, the position of the vertical detection section can also be adjusted by adjustably setting the relative position of the vertical support section corresponding to each vertical detection section and the support frame 11.

[0085] In an embodiment not shown, the column and the vertical detection arm can be non-segmented. At this time, the relative position of the vertical detection arm and the column is adjustably set and / or the relative position of the column and the support frame is adjustably set to realize the position adjustment of the vertical detector relative to the support frame.

[0086] Such as Figure 1 、 Figure 8 and Figure 9 shown, the bottom beam 15 is connected to the second support portion 112 of the support frame 11. The horizontal detection arm 43 of the detection device 40 is mounted on the bottom beam 15.

[0087] Such as Figure 8 shown, in some embodiments, the relative position of the horizontal detection arm 43 and the bottom beam 15 is adjustably set. In this embodiment, the relative position of the horizontal detection arm 43 and the bottom beam 15 along the second direction Y is adjusted by the detection arm position adjustment mechanism 70. The detection arm position adjustment mechanism 70 includes two detection arm position adjustment parts 71 and 72 arranged at intervals along the first direction X. In this embodiment, the specific implementation manner of the detection arm position adjustment mechanism 70 is the same as that of Figures 3 to 4 the detection arm position adjustment mechanism 60 shown, and will not be described repeatedly here.

[0088] Of course, the detection arm position adjustment mechanism 70 can also be set in the form of Figures 5 to 7 the detection arm position adjustment mechanism 60 shown.

[0089] Such as Figure 9As shown, the position adjustment of the horizontal detection arm 43 mounted on the bottom beam 15 relative to the support frame 11 can also be achieved by adjustably setting the relative position between the bottom beam 15 and the support frame 11. In this embodiment, the horizontal detection arm 43 is fixed to the bottom beam 15, and the bottom beam 15 is fixedly connected to the second support portion 112 through the detection arm adjustment mechanism 80 in an adjustably fixed position. In this embodiment, the detection arm adjustment mechanism 80 includes four detection arm position adjustment portions 81, 82, 83, and 84 respectively located between the four corners of the bottom beam 15 and the second support portion 112. In this embodiment, the structure and adjustment principle of each detection arm position adjustment portion are the same as those of Figures 3 to 4 the detection arm position adjustment portion 61 shown, and will not be described repeatedly here. The number of detection arm position adjustment portions of the detection arm position adjustment mechanism 80 can be set as needed.

[0090] Of course, the detection arm position adjustment mechanism 80 can also be set in the form of Figures 5 to 7 the detection arm position adjustment mechanism 60 shown. At this time, the structure of at least one detection arm position adjustment portion in the detection arm position adjustment mechanism 80 is the same as that of the first detection arm position adjustment portion 61 of the detection arm position adjustment mechanism 60, and the rest can be the same as the first detection arm position adjustment portion 62 of the detection arm position adjustment mechanism 60.

[0091] In an embodiment not shown, the bottom beam may include a plurality of horizontal support segments, the horizontal detection arm may include a plurality of horizontal detection segments, and the plurality of horizontal detection segments are respectively mounted on the plurality of horizontal support segments. Among them, the relative position between each horizontal detection segment and the corresponding horizontal support segment is adjustably set and / or the relative position between the horizontal support segment corresponding to each horizontal detection segment and the support frame of the equipment body is adjustably set.

[0092] In this radiation inspection equipment, in order to adjust the radiation source 211, the collimator 30, and the detection device 40 to appropriate working positions, the relative positions between the radiation source 211 and the horizontal detection arm 43 and the collimator 30 can be adjusted first. During the adjustment, the relative positions between the radiation source 211 and the collimator 30 and between the horizontal detection arm 43 and the collimator 30 can be changed through the radiation source position adjustment mechanism 23 and the detection arm position adjustment mechanism 70 (or the detection arm position adjustment mechanism 80), so that the relative positions of the radiation source 211, the collimator 30, and the horizontal detection arm 43 reach the main beam surface of the beam emitted from the collimator 30 to be aligned with the horizontal detection arm 43. Then, the relative positions of each vertical detection segment are adjusted respectively to align the main beam surface with each vertical detection segment. After the radiation source 211, the collimator 30, and the detection device 40 are in appropriate working positions, the position adjustment is completed, and the radiation inspection equipment can start to perform the scanning inspection work.

[0093] It should be noted that the above embodiments do not limit the present disclosure.

[0094] For example, in the foregoing embodiment, the radiation source 211 of the radiation source device 20 is a multi-target radiation source including a plurality of radiation parts 2111. A shielding cover 212 that is relatively fixed to the radiation source 211 is provided outside the radiation source 211. In an embodiment not shown, the position of the radiation source relative to the shielding cover may be adjustable, or the relative positions of the plurality of radiation parts with respect to each other may be set to be adjustable. In addition, the plurality of radiation parts 2111 may be arranged in a straight line as shown in Figure 1 , or may be arranged in other forms, such as in an arc, in a broken line, and so on.

[0095] For another example, in the foregoing embodiment, the collimator 30 may be fixedly installed at the opening of the installation wall 12. However, in an embodiment not shown, the position of at least part of the collimating structure of the collimator relative to the installation wall 12 may be set to be adjustable.

[0096] For yet another example, in the foregoing embodiment, the plurality of radiation parts 2111 of the radiation source device 20 are arranged on the top of the radiation inspection device to form a top-view scanning device. In an embodiment not shown, the plurality of radiation parts of the radiation source device may be arranged at other positions. For example, the plurality of radiation parts may be arranged on the side of the radiation inspection device to form a side-view scanning device, or some of the plurality of radiation parts may be arranged on the side of the radiation inspection device and some may be arranged on the top of the radiation inspection device to form a multi-view scanning device, etc.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not intended to limit them; although the present disclosure has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that it is still possible to modify the specific implementation manners of the present disclosure or perform equivalent replacements on some technical features, and they should all be covered within the scope of the technical solutions claimed in the present disclosure.

Claims

1. A radiation source device, characterized in that, Comprising: A radiation body (21), including a radiation source (211) having a plurality of radiation parts (2111) arranged at intervals in a first direction (X), and a shielding cover (212) connected to the radiation source (211) and covering the outside of the radiation source (211), the shielding cover (212) having a beam output part (2122) for the radiation source (211) to output a beam; A mounting seat (22), configured to carry the radiation body (21); and A radiation source position adjusting mechanism (23), connected between the shielding cover (212) and the mounting seat (22), the radiation source position adjusting mechanism (23) being configured to adjust and lock the relative position between the radiation body (21) and the mounting seat (22), the radiation source position adjusting mechanism (23) being configured to: Change the rotation angle of the radiation body (21) relative to the mounting seat (22) about an axis along the first direction (X); And / or Change the relative position of the radiation body (21) relative to the mounting seat (22) in the first direction (X); and / or Change the relative position of the radiation body (21) relative to the mounting seat (22) in a second direction (Y) perpendicular to the first direction (X).

2. The radiation source device according to claim 1, wherein The radiation source position adjusting mechanism (23) includes at least one rotation angle adjusting part (231, 232), and the rotation angle adjusting part (231, 232) includes: A connecting shaft (2311), fixedly connected to the shielding cover (212); A bearing seat (2312), fixedly connected to the mounting seat (22), the connecting shaft (2311) being rotatably arranged on the bearing seat (2312); and A locking part, having a locked state and an unlocked state. In the locked state, the locking part is configured to lock the relative position between the connecting shaft (2311) and the bearing seat (2312), and in the unlocked state, the locking part is configured to release the locking of the relative position between the connecting shaft (2311) and the bearing seat (2312) so that the connecting shaft (2311) can rotate relative to the bearing seat (2312).

3. The radiation source device according to claim 2, characterized in that, The locking part includes a set screw (2314), the bearing seat (2312) having a threaded hole arranged radially along the connecting shaft (2311), the set screw (2314) being matched with the threaded hole. In the locked state, the set screw (2314) abuts and cooperates with the connecting shaft (2311), and in the unlocked state, the set screw (2314) is spaced from the connecting shaft (2311).

4. The radiation source device according to claim 3, wherein The fixed connection position of the connecting shaft (2311) and the shielding cover (212) is variably arranged; and / or The fixed connection position of the bearing seat (2312) and the mounting seat (22) is variably arranged.

5. The radiation source device according to any one of claims 1 to 4, characterized in that The beam output area of the beam output part (2122) gradually increases from the side close to the radiation source (211) to the side far from the radiation source (211).

6. A radiation inspection device for performing radiation inspection on an object to be inspected, characterized in that, Comprising: A device main body (10); The radiation source device (20) is the radiation source device according to any one of claims 1 to 5, and the mounting base (22) of the radiation source device (20) is mounted on the device main body (10); The collimator (30) is disposed outside the beam exit portion (2122) of the shielding cover (212) and is configured to limit the beam shape of the beam output by the radiation source (211). The collimator (30) is mounted on the device main body (10); and The detection device (40) is configured to detect the rays after the beam output by the radiation source (211) of the radiation source device (20) passes through the object to be inspected and / or the rays scattered by the object to be inspected.

7. The radiation inspection device according to claim 6, characterized in that, The collimator (30) is disposed relatively fixedly with respect to the mounting base (22) of the radiation source device (20).

8. The radiation inspection apparatus according to claim 6 or 7, characterized in that, At least a part of the detection device (40) is disposed such that its position is adjustable with respect to the mounting base (22) of the radiation source device (20).

9. The radiation inspection apparatus according to claim 8, wherein, The radiation source includes a plurality of the radiation portions (2111) arranged at intervals in the first direction (X), and at least a part of the detection device (40) is disposed such that its position is adjustable in a second direction (Y) perpendicular to the first direction (X) with respect to the mounting base (22) of the radiation source device (20).

10. The radiation inspection device according to claim 8, characterized in that, The device main body (10) includes a support frame (11), and the mounting base (22) is fixedly mounted on the support frame (11), wherein The device main body (10) further includes a column connected to the support frame (11). The detection device (40) includes a vertical detection arm, and the vertical detection arm is mounted on the column. Wherein, the vertical detection arm is disposed such that its relative position with respect to the column is adjustable and / or the column is disposed such that its relative position with respect to the support frame (11) is adjustable; and / or The device main body (10) further includes a bottom beam (15) connected to the support frame (11). The detection device (40) further includes a horizontal detection arm (43), and the horizontal detection arm (43) is mounted on the bottom beam (15). Wherein, the horizontal detection arm (43) is disposed such that its relative position with respect to the bottom beam (15) is adjustable and / or the bottom beam (15) is disposed such that its relative position with respect to the support frame (11) is adjustable.

11. The radiation inspection device according to claim 10, wherein The column includes a plurality of vertical support sections (13, 14), the vertical detection arm includes a plurality of vertical detection sections (41, 42), and the plurality of vertical detection sections (41, 42) are respectively mounted on the plurality of vertical support sections (13, 14). Wherein, each of the vertical detection sections is disposed such that its relative position with respect to the corresponding vertical support section is adjustable and / or each of the vertical support sections corresponding to the vertical detection sections is disposed such that its relative position with respect to the support frame (11) is adjustable; and / or The bottom beam includes a plurality of horizontal support sections, the horizontal detection arm includes a plurality of horizontal detection sections, and the plurality of horizontal detection sections are respectively mounted on the plurality of horizontal support sections. Among them, the relative positions of each horizontal detection section and the corresponding horizontal support section are set to be adjustable and / or the relative positions of the horizontal support sections corresponding to each horizontal detection section and the support frame (11) are set to be adjustable.

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