Ray source assembly and security inspection machine

Abstract

The utility model discloses a radiation source assembly and a security inspection machine, and relates to the technical field of security and protection equipment. The radiation source assembly is used for the security inspection machine and comprises a radiation source, a mounting frame and a connecting frame, the connecting frame is used for being connected to a rack of the security inspection machine, the mounting frame is movably connected with the connecting frame, and the radiation source is arranged on the side, away from the rack, of the mounting frame. The mounting frame can move relative to the connecting frame so as to adjust the position of the mounting frame, and the moving direction of the mounting frame relative to the connecting frame comprises the extending direction of the inspection channel of the rack and / or the height direction of the inspection channel of the rack. According to the scheme, the problem that the installation position of the radiation source is deviated due to processing and assembling errors of each composition structure of the existing security inspection machine can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of security equipment, and in particular to a radiation source assembly and a security inspection machine. Background Art

[0002] A security inspection machine is a device that uses a conveyor belt to transport checked luggage into an inspection channel for security checks. Currently, security inspection machines are mainly used in public places with large traffic such as airports, train stations, and large conference venues to check the safety of luggage carried by passers-by.

[0003] In the existing technology, errors are inevitable during the processing and assembly of the security inspection machine's frame, conveying device, detection plate bracket and the radiation source mounting frame arranged on one side of the frame. The accumulated errors will cause the relative position of the target point of the radiation source and the inspection channel and the detection plate to deviate, thereby making the image output by the security inspection machine incomplete, thereby affecting the detection accuracy of the security inspection machine. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a radiation source assembly and a security inspection machine, which can solve the problem of deviation in the installation position of the radiation source due to processing and assembly errors of various components of the current security inspection machine.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a radiation source assembly for a security inspection machine, comprising a radiation source, a mounting frame and a connecting frame, wherein the connecting frame is used to be connected to a frame of the security inspection machine, the mounting frame and the connecting frame are movably connected, the radiation source is arranged on a side of the mounting frame away from the frame, the mounting frame can move relative to the connecting frame to adjust the position of the mounting frame, and the movement direction of the mounting frame relative to the connecting frame includes the extension direction of the inspection channel of the frame and / or the height direction of the inspection channel of the frame.

[0007] In the second aspect, an embodiment of the present application also provides a security inspection machine, comprising a frame, a detection plate and the above-mentioned radiation source assembly, wherein the frame has an inspection channel, the detection plate is arranged on the frame, the connecting frame of the radiation source assembly is detachably connected to the frame, and the radiation emission direction of the radiation source in the radiation source assembly is opposite to the detection surface of the detection plate, so that the detection plate can receive the radiation emitted by the radiation source.

[0008] In an embodiment of the present application, a radiation source assembly includes a radiation source, a mounting frame, and a connecting frame. The connecting frame is used to connect to the frame of the security inspection machine. The mounting frame and the connecting frame are movably connected. The radiation source is arranged on the side of the mounting frame facing away from the frame. The mounting frame can move relative to the connecting frame to adjust the position of the mounting frame, wherein the movement direction of the mounting frame relative to the connecting frame includes the extension direction of the inspection channel of the frame and / or the height direction of the inspection channel of the frame. During the process of assembling the radiation source assembly to the frame of the security inspection machine, by adjusting the position of the mounting frame relative to the connecting frame, the accumulated errors formed during the processing and assembly of the frame, the conveying device, the detection plate bracket, and the connecting frame of the security inspection machine are compensated. The target point of the radiation source is then aligned with the inspection channel of the frame and the detection plate of the security inspection machine, so that the security inspection machine outputs a complete image, thereby improving the detection accuracy of the security inspection machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the structure of the security inspection machine disclosed in the embodiment of this application;

[0010] Figure 2 This is an exploded view of the security inspection machine disclosed in the embodiment of this application;

[0011] Figure 3 A schematic structural diagram of a radiation source assembly disclosed in an embodiment of the present application;

[0012] Figure 4 An exploded view of the radiation source assembly disclosed in an embodiment of the present application;

[0013] Figure 5 This is a schematic structural diagram of the radiation source assembly disclosed in an embodiment of the present application from another perspective;

[0014] Figure 6 An exploded view of the radiation source assembly disclosed in an embodiment of the present application from another perspective;

[0015] Figures 7 and 8 Schematic diagrams of the structure of the radiation source assembly disclosed in the embodiments of the present application at different viewing angles;

[0016] Figure 9 Schematic diagram of the adjustment movement of the mounting bracket disclosed in the embodiment of the present application, wherein the arrow line indicates the movement direction of the mounting bracket;

[0017] Figure 10 This is a schematic structural diagram of the mounting bracket disclosed in an embodiment of the present application;

[0018] Figure 11 A schematic diagram of a portion of the structure of the connecting frame disclosed in an embodiment of the present application;

[0019] Figure 12 An exploded view of a portion of the structure of the connecting frame disclosed in an embodiment of the present application;

[0020] Figure 13 This is a schematic structural diagram of the connector disclosed in an embodiment of the present application.

[0021] Description of reference numerals:

[0022] 100-ray source;

[0023] 200 - mounting frame, 210 - strip-shaped transverse hole, 210' - first strip-shaped transverse hole, 210" - second strip-shaped transverse hole, 220 - second frame, 230 - first wedge-shaped block, 240 - second wedge-shaped block, 241 - inclined surface, 242 - guide column, 250 - hook, 260 - connector;

[0024] 300 - connecting frame, 310 - first frame body, 311 - vertical strip hole, 311' - first vertical strip hole, 311" - second vertical strip hole, 312 - second guide groove, 313 - guide pin, 320 - connecting plate, 321 - plate body, 322 - nut, 323 - guide hole, 330 - hanging opening;

[0025] 400-rack, 410-inspection channel;

[0026] 500-detection board;

[0027] 600-preloaded parts;

[0028] 710 - first adjusting member, 711 - first limiting flange, 720 - first limiting plate, 721 - first avoidance through hole;

[0029] 810 - second adjusting member, 811 - second limiting flange, 820 - support frame, 821 - supporting surface, 822 - first guide groove, 823 - supporting beam, 824 - supporting column, 830 - second limiting plate, 831 - second avoidance through hole, 832 - first portion, 833 - second portion;

[0030] 900-Conveying device. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects and are not used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate so that the embodiments of this application can be implemented in an order other than those illustrated or described herein. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0033] The radiation source assembly and security inspection machine provided in the embodiments of the present application are described in detail below with reference to specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0034] refer to Figures 1 to 13 The embodiment of the present application discloses a radiation source assembly for use in a security inspection machine. Of course, the radiation source assembly can also be installed on other equipment. The radiation source assembly is used to emit radiation.

[0035] The radiation source assembly includes a radiation source 100, a mounting frame 200, and a connecting frame 300. The radiation source 100 is used to emit radiation, such as X-rays. The connecting frame 300 is used to connect to the frame 400 of the security inspection machine. Optionally, the connecting frame 300 and the frame 400 are detachably connected, for example, by bolts, screws, or other connectors to facilitate disassembly and maintenance. When the connecting frame 300 and the frame 400 are connected, the two are relatively fixed. The mounting frame 200 and the connecting frame 300 are movably connected. The radiation source 100 is disposed on a side of the mounting frame 200 facing away from the frame 400. The mounting frame 200 can move relative to the connecting frame 300 to adjust the position of the mounting frame 200 so that the target point of the radiation source 100 is aligned with the inspection channel 410 of the frame 400 and the detector plate 500 of the security inspection machine. The target point has a radiation outlet that can be the radiation source 100. The movement direction of the mounting frame 200 relative to the connecting frame 300 includes the extension direction of the inspection channel 410 of the rack 400 and / or the height direction of the inspection channel 410 of the rack 400. The detection plate 500 is used to receive the radiation emitted by the radiation source 100. During the operation of the security inspection machine, the radiation emitted by the radiation source 100 passes through the objects in the inspection channel 410 and is received by the detection surface of the detection plate 500, thereby obtaining a detection image. It should be noted that after the relative position adjustment of the mounting frame 200 and the connecting frame 300 is completed, the mounting frame 200 and the connecting frame 300 can be connected and fixed by bolts, screws and other connecting parts to improve the relative stability between the two.

[0036] In the embodiment of the present application, during the assembly of the radiation source assembly to the frame 400 of the security inspection machine, the position of the mounting frame 200 relative to the connecting frame 300 is adjusted to compensate for the cumulative errors incurred during the processing and assembly of the frame 400, the conveying device 900, the detection plate bracket, and the connecting frame 300. This allows the target point of the radiation source 100 to be aligned with the inspection channel 410 of the frame 400 and the detection plate 500 of the security inspection machine, allowing the security inspection machine to output a complete image and thereby improve the detection accuracy of the security inspection machine. Therefore, the embodiment of the present application can solve the problem of deviation in the installation position of the radiation source 100 in current security inspection machines due to processing and assembly errors of the various components.

[0037] In an optional embodiment, mounting frame 200 is provided with a strip-shaped transverse hole 210, the length of which is parallel to the extension direction of inspection channel 410. The X-ray source assembly further includes a pre-tightening member 600. Pre-tightening member 600 can optionally be a fastener such as a bolt or screw, which is not specifically limited herein. One end of pre-tightening member 600 passes through strip-shaped transverse hole 210 and is connected to connecting frame 300, thereby movably connecting mounting frame 200 to connecting frame 300. Mounting frame 200 can move relative to connecting frame 300 along the extension direction of inspection channel 410. During the specific assembly process, one end of the pre-tightening member 600 passes through the strip-shaped transverse hole 210 and is pre-connected to the connecting frame 300. At this point, the mounting frame 200 and the connecting frame 300 are movably connected. The mounting frame 200 is then driven to move relative to the connecting frame 300 along the extension direction of the inspection channel 410. Simultaneously, the pre-tightening member 600 moves relative to the strip-shaped transverse hole 210. After the position of the mounting frame 200 in the extension direction of the inspection channel 410 is adjusted to a first target position, the pre-tightening member 600 is then tightened to securely connect the mounting frame 200 to the connecting frame 300. This solution uses the pre-tightening member 600 to movably connect the mounting frame 200 and the connecting frame 300. During the process of adjusting the position of the mounting frame 200, a stable fit between the mounting frame 200 and the connecting frame 300 is ensured, thereby improving adjustment efficiency.

[0038] Optionally, the mounting frame 200 can be manually or electrically driven to move along the direction of the inspection channel 410. Alternatively, in other embodiments, the radiation source assembly further includes a first adjustment member 710 threadedly connected to the mounting frame 200. Optionally, the first adjustment member 710 can be a bolt, screw, or other structure, which is not specifically limited in this embodiment of the present application. The first adjustment member 710 can drive the mounting frame 200 to move relative to the connecting frame 300 along the direction of the inspection channel 410. By manually rotating the first adjustment member 710, the first adjustment member 710 moves along the first threaded hole of the mounting frame 200. As the length of the first adjustment member 710 inserted into the first threaded hole increases, the mounting frame 200 moves relative to the connecting frame 300 along the direction of the inspection channel 410. This solution uses the first adjustment member 710 to drive the movement of the mounting frame 200 relative to the connecting frame 300, which not only saves energy but also has a simple structure and is easy to manufacture. Furthermore, the use of a threaded connection improves the movement accuracy of the mounting frame 200.

[0039] In a further optional embodiment, the first adjusting member 710 is provided with a first limiting flange 711, and the radiation source assembly further includes a first limiting plate 720, which is disposed on the connecting frame 300 and has a first avoidance hole 721. Optionally, the first avoidance hole 721 can extend through the edge of the first limiting plate 720. In this case, the first avoidance hole 721 is open, which facilitates the installation of the first adjusting member 710. One end of the first adjusting member 710 is threadedly connected to the mounting frame 200 through the first avoidance hole 721. The first limiting flange 711 cooperates with the first limiting plate 720 to limit the movement in the extension direction of the inspection channel 410, thereby preventing the first adjusting member 710 from moving too far relative to the connecting frame 300, and further preventing the mounting frame 200 from moving too far in the extension direction of the inspection channel 410. Of course, the first limiting plate 720 may not be provided. In this case, a first position detection component, such as a laser detection component, may be provided on the mounting frame 200 and the connecting frame 300 .

[0040] In another optional embodiment, the radiation source assembly further includes a pre-tightening member 600, and one of the mounting frame 200 and the connecting frame 300 is provided with a strip vertical hole 311, that is, the mounting frame 200 can be provided with a strip vertical hole 311, or the connecting frame 300 can be provided with a strip vertical hole 311, the length direction of the strip vertical hole 311 is parallel to the height direction of the inspection channel 410, and one end of the pre-tightening member 600 passes through the strip vertical hole 311 and is connected to the connecting frame 300, so that the mounting frame 200 and the connecting frame 300 are connected. The movable connection specifically involves: when the mounting frame 200 is provided with a strip-shaped vertical hole 311, one end of the pre-tightening member 600 passes through the strip-shaped vertical hole 311 and is threadedly connected to the connecting frame 300; when the connecting frame 300 is provided with a strip-shaped vertical hole 311, one end of the pre-tightening member 600 passes through the mounting hole of the mounting frame 200 and the strip-shaped vertical hole 311 in sequence and is connected to the connecting frame 300. For example, the end of the pre-tightening member 600 can be threadedly connected to a nut, which abuts the side of the connecting frame 300 facing away from the radiation source 100. The mounting frame 200 can be moved relative to the connecting frame 300 along the height direction of the inspection channel 410, thereby adjusting the height direction of the radiation source 100 in the inspection channel 410.

[0041] During the specific assembly process, one end of the pre-tightening member 600 passes through the strip-shaped vertical hole 311 and is pre-connected to the connecting frame 300. At this point, the mounting frame 200 and the connecting frame 300 are movably connected. The mounting frame 200 is then driven to move relative to the connecting frame 300 in the height direction of the inspection channel 410. Simultaneously, the pre-tightening member 600 moves relative to the strip-shaped vertical hole 311. After the position of the mounting frame 200 in the height direction of the inspection channel 410 is adjusted to the second target position, the pre-tightening member 600 is then tightened to securely connect the mounting frame 200 to the connecting frame 300. This solution uses the pre-tightening member 600 to movably connect the mounting frame 200 and the connecting frame 300. During the process of adjusting the position of the mounting frame 200, a stable fit between the mounting frame 200 and the connecting frame 300 is ensured, thereby improving adjustment efficiency.

[0042] Optionally, when the connecting frame 300 is provided with a strip vertical hole 311, the connecting frame 300 may include a first frame body 310 and a connecting plate 320 that are slidably connected. The first frame body 310 is used to be connected to the frame 400. The first frame body 310 is provided with a strip vertical hole 311. The length direction of the strip vertical hole 311 is parallel to the height direction of the inspection channel 410. One end of the preload member 600 passes through the mounting hole of the mounting frame 200 and the strip vertical hole 311 in turn and is threadedly connected to the connecting plate 320 so that the mounting frame 200 is movably connected to the first frame body 310. The mounting frame 200 can move relative to the first frame body 310 along the height direction of the inspection channel 410. At this time, the contact area between the connecting plate 320 and the first frame body 310 bracket is larger, which is beneficial to improving the stability of the preload member 600.

[0043] In another optional embodiment, the mounting frame 200 is provided with a strip-shaped horizontal hole 210, the length direction of the strip-shaped horizontal hole 210 is parallel to the extension direction of the inspection channel 410, the connecting frame 300 includes a first frame body 310 and a connecting plate 320 that are slidably connected, the first frame body 310 is used to be connected to the frame 400, the first frame body 310 is provided with a strip-shaped vertical hole 311, the length direction of the strip-shaped vertical hole 311 is parallel to the height direction of the inspection channel 410, the radiation source assembly also includes a pre-tightening member 600, one end of the pre-tightening member 600 passes through the strip-shaped horizontal hole 210 and the strip-shaped vertical hole 311 in sequence and is threadedly connected to the connecting plate 320, that is, the connecting plate 320 is slidably connected to the side of the first frame 310 facing the frame 400, so that the mounting frame 200 is movably connected to the first frame body 310, the mounting frame 200 can move relative to the first frame body 310 along the extension direction of the inspection channel 410, and the mounting frame 200 can move relative to the first frame body 310 along the height direction of the inspection channel 410.

[0044] When the position of the mounting frame 200 in the extension direction of the inspection channel 410 is adjusted to the first target position, the pre-tightening member 600 is driven to move relative to the first frame body 310 in the extension direction of the inspection channel 410 (i.e., the longitudinal direction). At this time, the pre-tightening member 600 and the connecting plate 320 move along the strip vertical hole 311 together with the mounting frame 200. When the position of the mounting frame 200 in the height direction of the inspection channel 410 is adjusted to the second target position, the pre-tightening member 600 is tightened to fix the mounting frame 200 to the connecting frame 300. This solution provides a strip-shaped horizontal hole 210 and a strip-shaped vertical hole 311, both of which provide movement space for the pre-tightening member 600, so that the mounting frame 200 can be moved in multiple directions relative to the connecting frame 300 to increase the movement range of the radiation source 100, which is conducive to further improving the detection accuracy of the security inspection machine; moreover, the lateral adjustment and longitudinal adjustment of the mounting frame 200 can be operated separately without interfering with each other, which improves the reliability of the operation.

[0045] It should be noted that, in the specific adjustment process of the above scheme, the position of the mounting frame 200 in the extension direction of the inspection channel 410 can be adjusted first, and then the position of the mounting frame 200 in the height direction of the inspection channel 410 can be adjusted. Alternatively, the position of the mounting frame 200 in the height direction of the inspection channel 410 can be adjusted first, and then the position of the mounting frame 200 in the extension direction of the inspection channel 410 can be adjusted. There is no specific restriction on this here.

[0046] Optionally, the connecting plate 320 includes a connected plate body 321 and a nut 322, the nut 322 is arranged on the side of the plate body 321 facing away from the radiation source 100, the plate body 321 is provided with a through hole, and one end of the preload member 600 passes through the strip horizontal hole 210, the strip vertical hole 311 and the through hole in sequence and is threadedly connected to the nut 322.

[0047] Optionally, the first frame 310 is provided with a guide pin 313, which is spaced apart from the strip vertical hole 311 in the height direction of the inspection channel 410, and the connecting plate 320 is provided with a guide hole 323 extending along the height direction of the inspection channel 410, and the guide pin 313 is slidably engaged with the guide hole 323.

[0048] Optionally, the mounting frame 200 can be manually or electrically driven to move along the height of the inspection passage 410. Alternatively, in other embodiments, the radiation source assembly further includes a second adjustment member 810, which can be a bolt, screw, or other structure, though this embodiment is not particularly limited thereto. The second adjustment member 810 is threadedly connected to the mounting frame 200 and can drive the mounting frame 200 to move along the height of the inspection passage 410 relative to the first frame 310. Manually rotating the second adjustment member 810 causes it to move along the second threaded hole of the mounting frame 200. As the second adjustment member 810 enters the second threaded hole, the mounting frame 200 moves along the height of the inspection passage 410 relative to the connecting frame 300. This solution, which uses the second adjustment member 810 to drive the movement of the mounting frame 200 relative to the connecting frame 300, not only saves energy but also has a simple structure and is easy to manufacture. Furthermore, the threaded connection improves the movement accuracy of the mounting frame 200.

[0049] Optionally, a second threaded hole can be set on the bottom surface of the mounting frame 200. In this case, the second adjustment member 810 enters the second threaded hole from the bottom of the mounting frame 200 to drive the mounting frame 200 to move along the height direction of the inspection channel 410; or, in a further optional embodiment, the radiation source assembly also includes a support frame 820, which is used to connect to the frame 400. The support frame 820 is located below the connecting frame 300. The mounting frame 200 includes a second frame body 220, a first wedge block 230 and a second wedge block 240. The radiation source 100 and the strip-shaped horizontal hole 210 are both set on the second frame body 220. The first wedge block 230 and the second wedge block 240 are slidably matched. The first wedge block 230 is detachably connected to the second frame body 220. The second wedge block 240 is slidably set on the support frame 820. The support frame 820 is used to support the mounting frame 200 and the radiation source 100, and provide an adjustment reference surface for the second wedge block 240. The second adjusting member 810 is threadedly connected to the second wedge block 240. The second adjusting member 810 can drive the second wedge block 240 to move along the extension direction of the inspection channel 410, so that the first wedge block 230 slides relative to the inclined surface 241 of the second wedge block 240, so that the mounting frame 200 rises relative to the first frame body 310 along the height direction of the inspection channel 410.

[0050] Specifically, a second threaded hole is provided on the side of the mounting frame 200. The second adjustment member 810 enters the second threaded hole from the side of the mounting frame 200, thereby driving the second wedge block 240 to move along the extension direction of the inspection channel 410. The first wedge block 230 can slide from the bottom to the top of the inclined surface 241 of the second wedge block 240, thereby raising the mounting frame 200 relative to the first frame body 310 along the height direction of the inspection channel 410. In this solution, the operator drives the second adjustment member 810 from the side of the mounting frame 200, which is convenient for operation. In addition, during the process of driving the second adjustment member 810, the weight required to overcome the vertical adjustment of the mounting frame 200 and the radiation source 100 is converted into a horizontal adjustment thrust. This ingenious structural design converts the weight of the mounting frame 200 and the radiation source 100 into a force in the extension direction of the inspection channel 410 by adjusting the position of the second wedge block 240 in the extension direction of the inspection channel 410, thereby greatly reducing the difficulty of adjusting the height direction of the inspection channel 410.

[0051] It should be noted that in the above solution, the position of the mounting frame 200 in the extension direction of the inspection channel 410 can be adjusted first, and then the position of the mounting frame 200 in the height direction of the inspection channel 410 can be adjusted, thereby improving the adjustment efficiency.

[0052] Optionally, the mounting frame 200 also includes a connecting piece 260 connected to the second frame body 220, and the first wedge block 230 is detachably connected to the second frame body 220 through the connecting piece 260. The connecting piece 260 includes a first plate segment and a second plate segment connected to each other, and the second plate segment is bent relative to the first plate segment, that is, the connecting piece 260 is an L-shaped structure. The first plate segment can be welded to the second frame body 220, and the second plate segment and the first wedge block 230 are detachably connected by fasteners such as screws and bolts, thereby facilitating the disassembly and assembly of the first wedge block 230.

[0053] In an optional embodiment, the angle between the inclined surface 241 and the support surface 821 of the support frame 820 is 15-20°. In this case, the angle of the inclined surface 241 is relatively small. Once the relative positions of the mounting frame 200 and the connecting frame 300 in the height direction of the inspection channel 410 are determined, the first wedge block 230 and the second wedge block 240 can be self-locked to ensure the stability between the mounting frame 200 and the connecting frame 300. Of course, the angle between the inclined surface 241 and the support surface 821 can also be greater than 20° or less than 15°.

[0054] In another optional embodiment, one of the support surface 821 of the support frame 820 and the bottom surface of the second wedge block 240 is provided with a first guide groove 822, and the other is provided with a guide post 242. The guide post 242 slides with the first guide groove 822 in the direction of extension of the inspection channel 410 to move the second wedge block 240 along a predetermined direction, thereby preventing the second wedge block 240 from deflecting. This helps improve the accuracy of position adjustment of the mounting frame 200, thereby improving adjustment efficiency. Of course, the first guide groove 822 and the guide post 242 can also be omitted, and deviation correction can be performed manually.

[0055] In another optional embodiment, a second guide groove 312 is provided on a side of the first frame 310 facing away from the mounting frame 200, and the connecting plate 320 is arranged in the second guide groove 312. The connecting plate 320 and the second guide groove 312 are limited in the extension direction of the inspection channel 410. That is, when the first adjusting member 710 drives the mounting frame 200 to move relative to the first frame 310 along the extension direction of the inspection channel 410, the connecting plate 320 and the second guide groove 312 are limited, thereby avoiding the connection plate 320 and the preload member 6 00 moves with the mounting bracket 200; the connecting plate 320 and the second guide groove 312 slide together in the height direction of the inspection channel 410. In the process of the second adjusting member 810 driving the mounting bracket 200 to move relative to the first frame body 310 along the height direction of the inspection channel 410, the connecting plate 320 and the second guide groove 312 slide together to make the mounting bracket 200 move along the preset direction, avoiding the mounting bracket 200 from tilting, which is conducive to improving the accuracy of adjusting the position of the mounting bracket 200, thereby improving the adjustment efficiency.

[0056] Optionally, the first frame 310 can be a one-piece structure; or, the first frame 310 can be a split structure, wherein the first frame 310 includes a first column and a second column spaced apart along the extension direction of the inspection channel 410, each of which is connected to the frame 400, and each of which is provided with a strip-shaped vertical hole 311. Accordingly, the connecting plate 320 includes a first strip plate and a second strip plate spaced apart, the first strip plate being slidably connected to the first column, and the second strip plate being slidably connected to the second column. Using this structure of the first frame 310 can provide a larger escape space for the radiation source 100, so that the radiation source 100 can be emitted toward the inspection channel 410 from the escape space between the first column and the second column.

[0057] In an optional embodiment, the support frame 820 includes a connected support beam 823 and a support column 824. Both ends of the support beam 823 are used to connect to the frame 400. One end of the support column 824 is used to connect to the frame 400, and the other end of the support column 824 is connected to the middle portion of the support beam 823. In other words, the support beam 823 and the support column 824 form a T-shaped structure to improve the support stability of the support frame 820. The second wedge block 240 is slidably disposed on the support beam 823, that is, the support beam 823 provides an adjustment reference surface for the second wedge block 240. The second adjusting member 810 is provided with a second limiting flange 811. The radiation source assembly further includes a second limiting plate 830, which is detachably mounted on the support beam 823. The second limiting plate 830 is provided with a second avoidance through-hole 831. One end of the second adjusting member 810 passes through the second avoidance through-hole 831 and is threadedly connected to the second wedge block 240. The second limiting flange 811 cooperates with the second limiting plate 830 to limit the movement of the second adjusting member 810 relative to the connecting frame 300 in the extension direction of the inspection channel 410, thereby preventing the second adjusting member 810 from moving too far relative to the connecting frame 300, thereby preventing the mounting frame 200 from moving too far in the height direction of the inspection channel 410. Of course, the second limiting plate 820 can also be omitted. In this case, a second position detection assembly, such as a laser detection assembly, can be provided on the mounting frame 200 and the connecting frame 300.

[0058] Optionally, the second limiting plate 830 includes a first portion 832 and a second portion 833 connected to each other. The first portion 832 is detachably connected to the support frame 820. The second avoidance through-hole 831 is provided in the second portion 833. The first portion 832 and the second portion 833 both include a third plate segment and a fourth plate segment connected to each other. The fourth plate segment is bent relative to the third plate segment. That is, the first portion 832 and the second portion 833 are both L-shaped structures. The third plate segment of the first portion 832 is detachably connected to the support frame 820, and the fourth plate segment of the first portion 832 is respectively connected to the third plate segment and the fourth plate segment of the second portion 833. The second limiting plate 830 using this structure is smaller in size and accordingly occupies less space.

[0059] In an optional embodiment, the number of the strip-shaped horizontal holes 210 may be one; or, the number of the strip-shaped horizontal holes 210 is at least two, including a first strip-shaped horizontal hole 210' and a second strip-shaped horizontal hole 210", which are arranged at intervals along the extension direction of the inspection channel 410, and the first strip-shaped horizontal hole 210' and the second strip-shaped horizontal hole 210", are respectively located on opposite sides of the ray source 100; the number of the strip-shaped vertical holes 311 is at least two, including a first strip-shaped vertical hole 311' and a second strip-shaped vertical hole 311", which are arranged at intervals along the extension direction of the inspection channel 410, and the first strip-shaped vertical hole 311' and the second strip-shaped vertical hole 311", are respectively located on opposite sides of the ray source 100, the first strip-shaped vertical hole 311' is opposite to the first strip-shaped horizontal hole 210', and the second strip-shaped vertical hole 311", is opposite to the second strip-shaped horizontal hole 210", and the pre-tightening member 600 is arranged in a one-to-one correspondence with the strip-shaped horizontal hole 210 and the strip-shaped vertical hole 311. The acting force between the mounting frame 200 and the connecting frame 300 is evenly distributed on both sides of the radiation source 100. During the movement of the mounting frame 200 relative to the connecting frame 300, this can improve the stability of the mounting frame 200 and prevent it from tilting. In addition, by connecting the mounting frame 200 and the connecting frame 300 through multiple pre-tightening members 600, the connection area between the two can be increased, thereby improving the connection firmness between the mounting frame 200 and the connecting frame 300.

[0060] Optionally, the number of the first bar horizontal holes 210' and the first bar vertical holes 311' are both at least two, and each first bar horizontal hole 210' and each first bar vertical hole 311' are arranged in sequence along the height direction of the inspection channel 410, and the pre-tightening member 600 is arranged in a one-to-one correspondence with the first bar horizontal hole 210' and the first bar vertical hole 311'; the number of the second bar horizontal holes 210" and the second bar vertical holes 311" are both at least two, and each second bar horizontal hole 210" and each second bar vertical hole 311" are arranged in sequence along the height direction of the inspection channel 410, and the pre-tightening member 600 is arranged in a one-to-one correspondence with the second bar horizontal hole 210" and the second bar vertical hole 311", thereby further increasing the connection area between the mounting frame 200 and the connecting frame 300 to enhance the connection firmness between the two.

[0061] Optionally, in any of the above embodiments, one of the mounting frame 200 and the connecting frame 300 is provided with a hook 250, and the other is provided with a hanging opening 330. The hook 250 is engaged with the hanging opening 330 to flexibly connect the mounting frame 200 and the connecting frame 300. During adjustment of the relative position of the mounting frame 200 and the connecting frame 300, the mounting frame 200 and the connecting frame 300 are engaged with each other via the hook 250 and the hanging opening 330, thereby achieving pre-installation, which can prevent the mounting frame 200 from falling.

[0062] Based on the radiation source assembly provided in the embodiments of the present application, the embodiments of the present application further provide a security inspection machine, which includes a frame 400, a detection plate 500, and the radiation source assembly described in any of the above embodiments. The frame 400 has an inspection channel 410, the detection plate 500 is disposed on the frame 400, and the connecting frame 300 of the radiation source assembly is detachably connected to the frame 400. The radiation emission direction of the radiation source 100 in the radiation source assembly is opposite to the detection surface of the detection plate 500, so that the detection plate 500 can receive the radiation emitted by the radiation source. When the security inspection machine is in operation, the radiation source 100 emits radiation, which passes through objects in the inspection channel 410 and is received by the detection surface of the detection plate 500, thereby obtaining a detection image.

[0063] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A radiation source assembly for a security inspection machine, characterized in that: The invention comprises a radiation source (100), a mounting frame (200) and a connecting frame (300), wherein the connecting frame (300) is used to be connected to the frame (400) of the security inspection machine, the mounting frame (200) and the connecting frame (300) are movably connected, the radiation source (100) is arranged on a side of the mounting frame (200) away from the frame (400), the mounting frame (200) can move relative to the connecting frame (300) to adjust the position of the mounting frame (200), and the movement direction of the mounting frame (200) relative to the connecting frame (300) includes the extension direction of the inspection channel (410) of the frame (400) and / or the height direction of the inspection channel (410) of the frame (400).

2. The ray source assembly according to claim 1, characterized in that: The mounting frame (200) is provided with a strip-shaped transverse hole (210), the length direction of the strip-shaped transverse hole (210) is parallel to the extension direction of the inspection channel (410), and the radiation source assembly further includes a pre-tightening member (600), one end of the pre-tightening member (600) passes through the strip-shaped transverse hole (210) and is connected to the connecting frame (300), so that the mounting frame (200) and the connecting frame (300) are movably connected, and the mounting frame (200) can move relative to the connecting frame (300) along the extension direction of the inspection channel (410).

3. The ray source assembly according to claim 2, characterized in that: The ray source assembly further comprises a first adjusting member (710), the first adjusting member (710) being threadedly connected to the mounting frame (200), and the first adjusting member (710) being capable of driving the mounting frame (200) to move relative to the connecting frame (300) along an extension direction of the inspection channel (410).

4. The ray source assembly according to claim 3, characterized in that: The first adjusting member (710) is provided with a first limiting flange (711), and the radiation source assembly further comprises a first limiting plate (720), the first limiting plate (720) being arranged on the connecting frame (300), the first limiting plate (720) being provided with a first avoidance through hole (721), one end of the first adjusting member (710) passing through the first avoidance through hole (721) and being threadedly connected to the mounting frame (200), the first limiting flange (711) and the first limiting plate (720) being matched for limiting positioning in the extension direction of the inspection channel (410).

5. The ray source assembly according to claim 1, characterized in that: The ray source assembly further includes a pre-tightening member (600), one of the mounting frame (200) and the connecting frame (300) is provided with a strip-shaped vertical hole (311), the length direction of the strip-shaped vertical hole (311) is parallel to the height direction of the inspection channel (410), one end of the pre-tightening member (600) passes through the strip-shaped vertical hole (311) and is connected to the connecting frame (300), so that the mounting frame (200) and the connecting frame (300) are movably connected, and the mounting frame (200) can move relative to the connecting frame (300) along the height direction of the inspection channel (410); and / or, The mounting frame (200) is provided with a strip-shaped transverse hole (210), the length direction of the strip-shaped transverse hole (210) is parallel to the extension direction of the inspection channel (410), the connecting frame (300) comprises a first frame body (310) and a connecting plate (320) connected in a sliding manner, the first frame body (310) is used to be connected to the frame (400), the first frame body (310) is provided with a strip-shaped vertical hole (311), the length direction of the strip-shaped vertical hole (311) is parallel to the height direction of the inspection channel (410), and the radiation source assembly is also The invention comprises a pre-tightening member (600), one end of which passes through the strip-shaped horizontal hole (210) and the strip-shaped vertical hole (311) in sequence and is threadedly connected to the connecting plate (320), so that the mounting frame (200) is movably connected to the first frame body (310), the mounting frame (200) can be moved relative to the first frame body (310) along the extension direction of the inspection channel (410), and the mounting frame (200) can be moved relative to the first frame body (310) along the height direction of the inspection channel (410).

6. The ray source assembly according to claim 5, characterized in that: The ray source assembly further comprises a second adjusting member (810), the second adjusting member (810) being threadedly connected to the mounting frame (200), and the second adjusting member (810) being capable of driving the mounting frame (200) to move relative to the first frame body (310) along a height direction of the inspection channel (410).

7. The ray source assembly according to claim 6, characterized in that: The ray source assembly further includes a support frame (820), the support frame (820) is used to be connected to the frame (400), the support frame (820) is located below the connecting frame (300), the mounting frame (200) includes a second frame body (220), a first wedge block (230) and a second wedge block (240), the ray source (100) and the strip-shaped horizontal hole (210) are both arranged on the second frame body (220), the first wedge block (230) and the second wedge block (240) are slidably matched, and the first wedge block (230) and the second frame body ( The second wedge block (240) is slidably arranged on the support frame (820), and the second adjusting member (810) is threadedly connected to the second wedge block (240). The second adjusting member (810) can drive the second wedge block (240) to move along the extension direction of the inspection channel (410), so that the first wedge block (230) slides relative to the inclined surface (241) of the second wedge block (240), so that the mounting frame (200) rises relative to the first frame body (310) along the height direction of the inspection channel (410).

8. The ray source assembly according to claim 7, characterized in that: The angle between the inclined surface (241) and the supporting surface (821) of the supporting frame (820) is 15-20°.

9. The ray source assembly according to claim 7, characterized in that: One of the support surface (821) of the support frame (820) and the bottom surface of the second wedge block (240) is provided with a first guide groove (822), and the other is provided with a guide column (242), and the guide column (242) and the first guide groove (822) are slidably engaged in the extension direction of the inspection channel (410); and / or, A second guide groove (312) is provided on a side of the first frame (310) facing away from the mounting frame (200), and the connecting plate (320) is arranged in the second guide groove (312). The connecting plate (320) and the second guide groove (312) are engaged in an upper limit position in the extension direction of the inspection channel (410), and the connecting plate (320) and the second guide groove (312) are engaged in a sliding manner in the height direction of the inspection channel (410).

10. The ray source assembly according to claim 7, characterized in that: The support frame (820) includes a connected support beam (823) and a support column (824), both ends of the support beam (823) are used to connect to the frame (400), one end of the support column (824) is used to connect to the frame (400), and the other end of the support column (824) is connected to the middle part of the support beam (823), and the second wedge block (240) is slidably arranged on the support beam (823). The second adjusting member (810) is provided with a second limiting flange (811), and the radiation source assembly further includes a second limiting plate (830), the second limiting plate (830) is detachably arranged on the supporting beam (823), the second limiting plate (830) is provided with a second avoidance through hole (831), one end of the second adjusting member (810) passes through the second avoidance through hole (831) and is threadedly connected to the second wedge block (240), and the second limiting flange (811) and the second limiting plate (830) are matched to limit the extension direction of the inspection channel (410).

11. The radiation source assembly according to any one of claims 1 to 10, characterized in that: One of the mounting frame (200) and the connecting frame (300) is provided with a hook (250), and the other is provided with a hanging opening (330), and the hook (250) is hung and matched with the hanging opening (330) so that the mounting frame (200) and the connecting frame (300) are movably connected.

12. A security inspection machine, characterized in that: The invention comprises a frame (400), a detection plate (500) and a radiation source assembly according to any one of claims 1 to 11, wherein the frame (400) has an inspection channel (410), the detection plate (500) is arranged on the frame (400), the connecting frame (300) of the radiation source assembly is detachably connected to the frame (400), and the radiation emission direction of the radiation source (100) in the radiation source assembly is opposite to the detection surface of the detection plate (500), so that the detection plate (500) can receive the radiation emitted by the radiation source (100).

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