Security inspection equipment

Abstract

The present application discloses a security inspection device, which relates to the technical field of the design of security equipment. The security inspection device includes a device main body and a conveying assembly. The device main body is provided with a security inspection passage, a radiation source for emitting radiation to the security inspection passage, and a detector assembly for receiving the radiation; the conveying assembly is connected to the device main body, and the conveying assembly has a bearing surface for carrying articles and conveys the articles into the security inspection passage; an angle other than 0 is formed between the bearing surface and a horizontal reference surface. This solution can solve the problem of relatively high missed inspection rate of current security inspection devices.

Description

Technical Field

[0001] This application belongs to the technical field of security equipment design, and particularly relates to a security inspection device. Background Art

[0002] During the process of a security inspection device detecting an item, when the item to be inspected enters the security inspection passage, the ray beam passes through the item to be inspected and then bombards the detector. Since items of different substances and thicknesses have different absorption degrees for rays, at this time, the detector converts the rays containing item information into visible light, and then into an electrical signal, which is processed by a processor to become an image.

[0003] Currently, during the security inspection of an item to be inspected by an existing security inspection device, the transmission direction of the conveying device is perpendicular to the scanning plane of the ray source, and finally a two-dimensional planar image of the item to be inspected at a specific angle is obtained. However, if the content of the item to be inspected is complex, at this time, the security inspection personnel will not be able to comprehensively and accurately understand the placement position, shape, and the relationship between them of the item, especially for some items hidden behind other items and blocked, which are easily missed, resulting in a relatively high missed inspection rate of the security inspection device. Summary of the Invention

[0004] The purpose of the embodiments of this application is to provide a security inspection device that can solve the problem of the relatively high missed inspection rate of existing security inspection devices.

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

[0006] The embodiments of this application provide a security inspection device, including a device main body and a conveying component. The device main body is provided with a security inspection passage, and the device main body is provided with a ray source for emitting rays to the security inspection passage and a detector component for receiving rays;

[0007] The conveying component is connected to the device main body, and the conveying component has a bearing surface for carrying an item and transports the item into the security inspection passage;

[0008] An angle other than 0 is formed between the bearing surface and the horizontal reference surface.

[0009] In the embodiment of the present application, the bearing surface of the conveying component is set to form an angle other than 0 with the horizontal reference surface, that is, the bearing surface of the conveying component is inclined. During the security inspection of the item to be inspected by the security inspection device, an acute angle is formed between the transmission direction of the conveying component and the scanning surface of the radiation source, so as to obtain an item scanning image at a scanning angle different from that of the existing security inspection device, so as to show a three-dimensional image display effect, and further achieve the effect of obtaining a three-dimensional scanning image of the item to be inspected by using a two-dimensional scanning method, so as to facilitate the staff to view the image information of the item to be inspected more intuitively and clearly; and, if there are other items that cannot be seen clearly, it is possible to select to change the angle for re-inspection, detect from multiple angles to obtain the information of the item to be inspected at multiple angles, and then perform image reconstruction through an algorithm to obtain more complete and clear three-dimensional image information of the item to be inspected, which helps to improve the security inspection accuracy and thus reduce the missed inspection rate of the security inspection device. Therefore, the present application can solve the problem of relatively high missed inspection rate of the current security inspection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic structural diagram of the security inspection device disclosed in the embodiment of the present application;

[0011] Figure 2 is a schematic structural diagram of the security inspection device in the first state disclosed in the embodiment of the present application;

[0012] Figure 3 is a schematic structural diagram of the security inspection device in the second state disclosed in the embodiment of the present application;

[0013] Figure 4 is a schematic structural diagram of the device main body and the bearing assembly disclosed in the embodiment of the present application;

[0014] Figure 5 is a schematic structural diagram of the conveying component disclosed in the embodiment of the present application;

[0015] Figure 6 is an exploded view of the security inspection device disclosed in the embodiment of the present application;

[0016] Figure 7 is a schematic structural diagram of the rotating pair disclosed in the embodiment of the present application;

[0017] Figure 8 is a schematic diagram of a part of the structure of the security inspection device disclosed in the embodiment of the present application;

[0018] Figure 9 is a schematic structural diagram of the transmission mechanism disclosed in another embodiment of the present application.

[0019] DESCRIPTION OF THE REFERENCE NUMERALS

[0020] 100 - Device main body, 110 - Security inspection passage, 120 - Radiation source, 130 - Connection part, 131 - Through hole, 140 - Detector assembly, 150 - Cross beam;

[0021] 200 - Conveyor assembly, 210 - Loading surface, 220 - Positioning hole;

[0022] 300 - Rotating connection assembly, 310 - Rotating shaft, 311 - Connecting flange, 320 - Driving assembly, 321 - Driving source, 322 - Transmission mechanism, 322a - Transmission belt, 322b - First transmission wheel, 322c - Second transmission wheel, 323 - Base;

[0023] 400 - Bearing assembly;

[0024] 500 - Rotating pair, 510 - First connecting rod, 520 - Second connecting rod, 530 - Connecting shaft, 540 - Locking part, 541 - Damping gasket, 542 - Fastening nut, 560 - First support, 570 - Second support;

[0025] 600 - Position detection assembly, 610 - First emitting part, 620 - Second emitting part, 630 - Shielding part;

[0026] 700 - Blocking part, 710 - First part, 720 - Second part;

[0027] 810 - First fastener, 820 - Second fastener. Detailed implementation mode

[0028] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0029] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. generally belong to the same category, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0030] The following will, in conjunction with the accompanying drawings, elaborate in detail on the security inspection equipment provided by the embodiments of the present application through specific embodiments and their application scenarios.

[0031] As Figures 1 to 9 shown, an embodiment of the present application discloses a security inspection equipment, which includes an equipment main body 100 and a conveying component 200. The equipment main body 100 is provided with a security inspection passage 110. Articles enter the security inspection passage 110 from the entrance of the security inspection passage 110, are inspected in the security inspection passage 110, and then move outside the security inspection passage 110 from the exit of the security inspection passage 110. The equipment main body 100 is provided with a radiation source 120 for emitting radiation to the security inspection passage 110 and a detector assembly 140 for receiving the radiation. Optionally, the radiation source 120 is used to emit X-rays. Of course, other types of radiation can also be emitted. The embodiments of the present application do not make specific limitations on this; optionally, the detector assembly 140 is oppositely arranged in the same direction as the radiation source 120. The radiation source 120 generates a fan-shaped radiation beam. The conveying component 200 pulls the article through the scanning slit, the radiation beam irradiates the article, and the detector assembly 140 receives the radiation passing through the article and converts the optical signal into an electrical signal.

[0032] Optionally, one or more radiation sources 120 can be arranged on the equipment main body 100. The radiation sources 120 can be arranged at the bottom, top or side wall of the security inspection passage 110. The radiation sources 120 and the detector assembly 140 cooperate to form one or more radiation scanning perspectives.

[0033] The conveying component 200 is connected to the equipment main body 100, and the conveying component 200 has a bearing surface 210 for carrying articles and transports the articles into the security inspection passage 110. Optionally, a part of the conveying component 200 is located inside the security inspection passage 110, that is, the middle part of the conveying component 200 can be located inside the security inspection passage 110. The first end and the second end of the conveying component 200 are both located outside the security inspection passage 110. Specifically, the first end of the conveying component 200 is located on the side where the entrance end of the security inspection passage 110 is located, so as to facilitate placing the articles to be inspected. The second end of the conveying component 200 is located on the side where the exit end of the security inspection passage 110 is located, so as to facilitate taking the inspected articles.

[0034] An angle other than 0 is formed between the bearing surface 210 and the horizontal reference plane.

[0035] In the embodiment of the present application, the bearing surface 210 of the conveying component 200 is set to form an angle other than 0 with the horizontal reference plane, that is, the bearing surface 210 of the conveying component 200 is inclined. During the security inspection of the inspected item by the security inspection device, an acute angle is formed between the transmission direction of the conveying component 200 and the scanning surface of the radiation source 120, so as to obtain an item scanning image at a scanning angle different from that of the existing security inspection device, to show a three-dimensional image display effect, and further to achieve the effect of obtaining a three-dimensional scanning image of the inspected item by using a two-dimensional scanning method, so as to facilitate the staff to view the image information of the inspected item more intuitively and clearly; and, if there are other items that cannot be seen clearly, it is possible to select to change an angle for re-inspection, detect the inspected item information at multiple angles, and then perform image reconstruction through an algorithm to obtain more complete and clear three-dimensional image information of the inspected item, which helps to improve the security inspection accuracy and thus reduce the missed inspection rate of the security inspection device. Therefore, the present application can solve the problem of relatively high missed inspection rate of the current security inspection device.

[0036] In an optional embodiment, there is a first connection state between the conveying component 200 and the device main body 100. During the process of the security inspection device scanning and detecting an item in the first connection state, the angle formed between the bearing surface 210 and the horizontal reference plane remains unchanged, that is, during the security inspection process, the relative position between the bearing surface 210 and the radiation source 120 is fixed. At this time, the detection perspective is single, and the inspected item can quickly pass through the security inspection channel 110, thereby improving the security inspection efficiency of the security inspection device; or, there is a second connection state between the conveying component 200 and the device main body 100. During the process of the security inspection device scanning and detecting an item in the second connection state, the size of the angle formed between the bearing surface 210 and the horizontal reference plane can change, that is, during the security inspection process, the relative position between the bearing surface 210 and the radiation source 120 changes. The item information is detected through multiple detection perspectives. At this time, the time for the inspected item to pass through the security inspection channel 110 can be extended, so that the image information obtained by each detection perspective is clearer, and thus clearer three-dimensional image information can be obtained, which can reduce the number of re-inspections or even eliminate the need for re-inspection, thereby improving the security inspection efficiency of the security inspection device.

[0037] It should be noted that in the above embodiment, the time for the inspected item to pass through the security inspection channel 110 in the first connection state can be less than the time for the inspected item to pass through the security inspection channel 110 in the second connection state.

[0038] In a further optional embodiment, when the conveying component 200 and the device main body 100 are in the first connection state:

[0039] The conveying assembly 200 is fixedly connected to the device main body 100 (for example, fixedly connected by welding), so that the size of the included angle formed between the bearing surface 210 and the horizontal reference surface cannot be changed, which can improve the connection stability and firmness between the conveying assembly 200 and the device main body 100.

[0040] Alternatively, the conveying assembly 200 and the device main body 100 are connected through a fixed connection assembly (for example, detachably connected by screws, bolts, etc.), so that the size of the included angle formed between the bearing surface 210 and the horizontal reference surface supports being changed by adjusting the fixed connection assembly. At this time, before the security inspection, the size of the included angle formed between the bearing surface 210 and the horizontal reference surface can be adjusted to obtain the actual required detection angle of view, and then the conveying assembly 200 is fixed through the fixed connection assembly so that the included angle remains unchanged during the security inspection. That is to say, this solution can flexibly adjust the size of the included angle formed between the bearing surface 210 and the horizontal reference surface according to actual needs, so as to meet different detection requirements.

[0041] Optionally, when the conveying assembly 200 and the device main body 100 are in the first connection state and are connected through a fixed connection assembly, during the security inspection, the conveying assembly 200 can be first arranged horizontally to convey the inspected articles. If there are other articles that cannot be clearly seen, the conveying assembly 200 can be adjusted so that the included angle formed between the bearing surface 210 and the horizontal reference surface is not 0, that is, the conveying assembly 200 is arranged obliquely, and a re-inspection is carried out by changing an angle to obtain the information of the inspected articles at different angles.

[0042] In another alternative embodiment, the conveying assembly 200 and the device main body 100 are rotatably connected through a rotating connection assembly 300. In the case of the second connection state, the size of the included angle formed between the bearing surface 210 and the horizontal reference surface can be adjusted by the rotation of the conveying assembly 200 relative to the device main body 100. That is, since the conveying assembly 200 can rotate relative to the device main body 100, when the conveying assembly 200 rotates relative to the device main body 100, the size of the included angle formed between the bearing surface 210 of the conveying assembly 200 and the horizontal reference surface changes accordingly, so as to obtain multiple detection angles of view; in the first connection state and when the angle of the rotating connection assembly 300 is limited (that is, the rotating connection assembly 300 is restricted and cannot rotate relatively), the size of the included angle formed between the bearing surface 210 and the horizontal reference surface cannot be changed, that is, during the security inspection, the included angle formed between the bearing surface 210 and the horizontal reference surface remains unchanged.

[0043] Specifically, when the conveying component 200 needs to be in the first connection state with the device main body 100, the angular limit of the rotational connection component 300 is performed to keep the included angle formed between the bearing surface 210 and the horizontal reference surface unchanged. At this time, the detection perspective is single, and the inspected item can quickly pass through the security inspection channel 110; when the conveying component 200 needs to be in the second connection state with the device main body 100, the conveying component 200 rotates relative to the device main body 100 to adjust the size of the included angle formed between the bearing surface 210 and the horizontal reference surface, and item information is obtained from multiple detection perspectives. That is to say, the security inspection device disclosed in this solution can flexibly switch between the first connection state and the second connection state according to actual detection requirements, so as to meet various detection needs.

[0044] In an optional embodiment, the rotational connection component 300 includes a rotating shaft 310 and a driving component 320. In the width direction of the conveying component 200, rotating shafts 310 are provided on both opposite side surfaces of the conveying component 200. The conveying component 200 is rotationally connected to the device main body 100 through the rotating shafts 310. The driving component 320 is disposed on the device main body 100 and is connected to the conveying component 200. The driving component 320 can drive the conveying component 200 to rotate relative to the device main body 100 through the rotating shafts 310, that is, the driving component 320 can drive the conveying component 200 to rotate around its rotation center axis, so that the relative position between the bearing surface 210 and the radiation source 120 changes, and the size of the included angle formed between the bearing surface 210 and the horizontal reference surface is adjusted. In this solution, the driving component 320 drives the conveying component 200 to rotate, which can improve the automation performance of the security inspection device and can save effort. Of course, the driving component 320 may not be provided, and the conveying component 200 is driven to rotate relative to the device main body 100 manually. When the conveying component 200 needs to be fixed relative to the device main body 100, the conveying component 200 can be positioned by a positioning member.

[0045] In a further optional embodiment, the driving component 320 includes a driving source 321 and a transmission mechanism 322. Optionally, the driving source 321 can be a motor or the like, and the embodiments of the present application do not make specific limitations on this. The driving source 321 is disposed on the device main body 100. The first end of the transmission mechanism 322 is connected to the output shaft of the driving source 321, and the second end of the transmission mechanism 322 is connected to the rotating shaft 310. The driving source 321 can drive the rotating shaft 310 to rotate through the transmission mechanism 322. The rotating shaft 310 is fixedly connected to the conveying component 200, and the rotating shaft 310 can drive the conveying component 200 to rotate. In this solution, the driving source 321 drives the conveying component 200 to rotate through the transmission mechanism 322. At this time, the distance between the driving source 321 and the rotating shaft 310 can be flexibly selected, which can facilitate the arrangement of the driving source 321. Of course, the transmission mechanism 322 may not be provided, and the driving source 321 is directly connected to the rotating shaft 310.

[0046] Optionally, the transmission mechanism 322 can be a transmission structure with a self-locking function, such as a worm and worm gear, a gear, a chain, etc. Alternatively, in other embodiments, the transmission mechanism 322 includes a transmission belt 322a, a first transmission wheel 322b, and a second transmission wheel 322c. The first transmission wheel 322b is sleeved on the output shaft of the drive source 321, the second transmission wheel 322c is sleeved on the rotating shaft 310, and the transmission belt 322a is rotatably sleeved on the first transmission wheel 322b and the second transmission wheel 322c. The drive source 321 can drive the second transmission wheel 322c to rotate through the first transmission wheel 322b and the transmission belt 322a. The transmission mechanism 322 in this solution uses a belt drive method to transmit the driving force output by the drive source 321, which has the characteristics of simple structure and stable transmission. Optionally, the diameter of the second transmission wheel 322c can be equal to the diameter of the first transmission wheel 322b; or, the diameter of the second transmission wheel 322c is greater than the diameter of the first transmission wheel 322b, which can increase the transmission ratio and thus save the driving force of the drive source 321.

[0047] In an alternative embodiment, the transmission belt 322a is a synchronous belt. At this time, the first transmission wheel 322b is a first synchronous belt wheel, and the second transmission wheel 322c is a second synchronous belt wheel. The transmission belt 322a is provided with transmission teeth, and the transmission belt 322a meshes with both the first transmission wheel 322b and the second transmission wheel 322c through the transmission teeth. This can prevent the transmission belt 322a from rotating relative to the first transmission wheel 322b and the second transmission wheel 322c when the drive source 321 is in a stopped working state, so that the transmission mechanism 322 can be self-locked, thereby ensuring the hovering stability of the conveying assembly 200. Of course, the transmission teeth can also be not provided. At this time, the transmission belt 322a is relatively fixed to the first transmission wheel 322b and the second transmission wheel 322c through friction to achieve self-locking.

[0048] Optionally, during the self-locking process of the above transmission mechanism 322, the transmission teeth can cooperate with damping oil to improve the self-locking stability of the transmission belt with the first transmission wheel 322b and the second transmission wheel 322c.

[0049] Optionally, the position where the first transmission wheel 322b is located can be equal to the position where the second transmission wheel 322c is located; or, the position where the first transmission wheel 322b is located is lower than the position where the second transmission wheel 322c is located, which can prevent the first transmission wheel 322b from interfering with the conveying assembly 200.

[0050] Optionally, the drive assembly 320 further includes a base 323. The base 323 is arranged on the equipment main body 100 by means of screws, welding, etc. The drive source 321 is detachably arranged on the base 323 by means of screws, etc., so that the drive source 321 is connected to the equipment main body 100 through the base 323, thus facilitating the setting of the drive source 321.

[0051] In another alternative embodiment, on the width direction of the security inspection passage 110, connection parts 130 are provided on the opposite two side walls of the device main body 100. Through holes 131 are provided in the connection parts 130. The security inspection device further includes a bearing assembly 400, and the bearing assembly 400 is detachably arranged on the connection parts 130. Optionally, the bearing assembly 400 includes a bearing seat and a bearing. The bearing seat is detachably arranged on the connection parts 130 through a first fastener 810 (such as a screw), and the bearing is arranged in the bearing seat. The first end of the rotating shaft 310 sequentially passes through the through hole 131 and the bearing assembly 400 and is connected to the transmission mechanism 322. The bearing has the characteristics of compact structure, small frictional resistance, flexible rotation, etc. The bearing assembly 400 in this solution can play a role in supporting the rotating shaft 310, and at the same time can ensure the flexible rotation of the rotating shaft 310, so that the rotating shaft 310 drives the conveying assembly 200 to rotate flexibly. Of course, the bearing assembly 400 may not be provided either.

[0052] In yet another alternative embodiment, the drive assembly 320 is arranged on the outer surface of the device main body 100, so as to avoid interference with the structures arranged in the accommodation space of the device main body 100. Positioning holes 220 are provided on the opposite two side surfaces of the conveying assembly 200. A connection flange 311 is provided on the circumferential surface of the rotating shaft 310. The rotating shaft 310 is detachably connected to the conveying assembly 200 through the connection flange 311 to facilitate the disassembly and assembly of the rotating shaft 310; optionally, the connection flange 311 is detachably connected to the conveying assembly 200 through a second fastener 820. The second end of the rotating shaft 310 is inserted into the positioning hole 220 and is in positioning cooperation with the positioning hole 220. In this solution, the setting of the connection flange 311 can increase the connection area between the rotating shaft 310 and the conveying assembly 200, thereby enhancing the connection stability between the two; the positioning hole 220 can provide guidance for the rotating shaft 310 during the assembly process, and when the rotating shaft 310 is assembled to the conveying assembly 200, the rotating shaft 310 is in positioning cooperation with the positioning hole 220, which can prevent the rotating shaft 310 from moving relative to the conveying assembly 200, thereby enhancing the stability of the rotating shaft 310. Of course, the bearing assembly 400 may also be detachably arranged on the side of the connection part 130 facing the security inspection passage 110, the rotating shaft 310 and the conveying assembly 200 may also be connected by welding or other means, the connection flange 311 may not be provided, and the positioning hole 220 may not be provided either.

[0053] In yet another alternative embodiment, the security inspection device further includes a detection component and a control component. The detection component is disposed on the output shaft of the driving source 321 and is used to detect the rotation parameters of the output shaft of the driving source 321. Here, the rotation parameters may specifically be the rotational angular velocity, the number of rotations of the output shaft of the driving source 321, etc. The embodiments of the present application do not make specific limitations thereto. The control component is electrically connected to both the detection component and the driving source 321, and is used to control the working state of the driving source 321 according to the rotation parameters. Here, the working state of the driving source 321 specifically refers to the start and stop of the driving source 321, and whether the driving source 321 needs to perform a rotation, etc. In this solution, the rotation position of the conveying assembly 200 can be obtained according to the rotation parameters of the output shaft of the driving source 321, so as to control the working state of the driving source 321, and accurately control the hovering position of the conveying assembly 200 and the rotation amplitude of the conveying assembly 200 during the reciprocating movement.

[0054] Optionally, the detection component may be an encoder, which can output a voltage signal of the rotational angular velocity of the output shaft of the driving source 321 and transmit the voltage signal to the control component, so as to convert the voltage signal into the rotation angle and position information of the conveying assembly 200, thereby accurately controlling the working state of the driving source 321, and more accurately combining the image information with the corresponding angle information of its sampling for image reconstruction, so as to avoid artifacts caused by deviations between the angle information and the image and affect the image quality.

[0055] In an alternative embodiment, the security inspection device further includes a position detection assembly 600, which is used to detect the position information of the conveying assembly 200, so that the size of the included angle formed between the bearing surface 210 and the horizontal reference surface can be adjusted according to the position information. Specifically, in the case where the conveying assembly 200 and the device main body 100 are in the first connection state, the conveying assembly 200 and the device main body 100 are connected by a fixed connection assembly (such as detachably connected by screws, bolts, etc.), so that the size of the included angle formed between the bearing surface 210 and the horizontal reference surface supports being changed by adjusting the fixed connection assembly. Before the security inspection, when the position information detected by the position detection assembly 600 indicates that the included angle formed between the bearing surface 210 and the horizontal reference surface is equal to the preset angle, the conveying assembly 200 is fixed by the fixed connection assembly; in the case where the conveying assembly 200 and the device main body 100 are in the second connection state, the conveying assembly 200 accurately obtains the angles of multiple detection perspectives according to the position information detected by the position detection assembly 600, thereby improving the integrity of the three-dimensional image information of the item obtained.

[0056] Optionally, in an embodiment where the rotating connection assembly 300 includes a rotating shaft 310 and a driving assembly 320, the security inspection device further includes a position detection assembly 600 and a control member. The position detection assembly 600 is configured to detect the position information of the conveying assembly 200. The control member is electrically connected to both the position detection assembly 600 and the driving assembly 320. The control member is configured to control the working state of the driving assembly 320 according to the position information. Here, the working state of the driving assembly 320 specifically refers to the start and stop of the driving assembly 320, and whether the driving assembly 320 needs to rotate back and forth, etc. By setting the position detection assembly 600, this solution can prevent the conveying assembly 200 from rotating too much and colliding with the device main body 100, and accurately control the hovering position of the conveying assembly 200.

[0057] In a further optional embodiment, the conveying assembly 200 rotates between a first position and a second position. The position detection assembly 600 includes a first emitter 610, a second emitter 620, and an occlusion member 630. Optionally, at least one of the first emitter 610 and the second emitter 620 can be an optoelectronic switch. One of the conveying assembly 200 and the device main body 100 is provided with the occlusion member 630, and the other is provided with the first emitter 610 and the second emitter 620. The position where the first emitter 610 is located is higher than the position where the second emitter 620 is located. When the conveying assembly 200 and the device main body 100 are in the second connection state and the conveying assembly 200 is located at the first position, the occlusion member 630 is opposite to the first emitter 610 to block the light emitted by the first emitter 610. When the conveying assembly 200 and the device main body 100 are in the second connection state and the conveying assembly 200 is located at the second position, the occlusion member 630 is opposite to the second emitter 620 to block the light emitted by the second emitter 620. The position detection assembly 600 in this solution utilizes the optoelectronic detection principle, which has the characteristics of anti-electromagnetic interference, which is beneficial to improving the detection accuracy and has a fast response. Of course, the position detection assembly 600 can also be detected by laser.

[0058] Optionally, in the first connection state, when the conveying assembly 200 and the device main body 100 are connected by a fixed connection assembly, when adjusting the angle formed between the bearing surface 210 and the horizontal reference surface, when the conveying assembly 200 is located at the first position, the occlusion member 630 is opposite to the first emitter 610 to block the light emitted by the first emitter 610. When the conveying assembly 200 is located at the second position, the occlusion member 630 is opposite to the second emitter 620 to block the light emitted by the second emitter 620, that is, the optoelectronic detection principle is used to improve the detection accuracy of the position detection assembly 600.

[0059] In another alternative embodiment, the security inspection device further includes a rotating pair 500, which is arranged on the side of the conveying assembly 200. The rotating pair 500 includes a first connecting rod 510 and a second connecting rod 520 that are rotatably connected. The first end of the first connecting rod 510 is connected to the conveying assembly 200, and the first end of the second connecting rod 520 is connected to the device main body 100. The second ends of the first connecting rod 510 and the second connecting rod 520 are both sleeved on the connecting shaft 530. At least one of the opposite first end and second end of the connecting shaft 530 is provided with a locking member 540, and the locking member 540 is in locking cooperation with the first connecting rod 510 or the second connecting rod 520 to lock the rotating pair 500 for self-locking. In this solution, on the basis of ensuring that the conveying assembly 200 can rotate flexibly, the rotating pair 500 can play an auxiliary supporting role to further improve the rotational stability of the conveying assembly 200; at the same time, when the conveying assembly 200 is fixed relative to the device main body 100, that is, when the conveying assembly 200 is in a hovering state, the locking member 540 is in locking cooperation with the first connecting rod 510 or the second connecting rod 520 to lock the rotating pair 500 for self-locking, thereby improving the stability of the conveying assembly 200 in the hovering state.

[0060] Optionally, on both opposite sides of the conveying assembly 200 in the width direction of the security inspection passage 110, rotating pairs 500 are provided so that during the rotation of the conveying assembly 200, the forces on both sides of the conveying assembly 200 are relatively balanced, thereby further improving the stability of the conveying assembly 200; of course, in the width direction of the security inspection passage 110, rotating pairs 500 may be provided only on one side of the conveying assembly 200.

[0061] Optionally, on both opposite sides of the rotation center axis of the conveying assembly 200 in the length direction of the security inspection passage 110, rotating pairs 500 are provided so that during the rotation of the conveying assembly 200, the forces at both ends of the conveying assembly 200 are more balanced, thereby improving the stability of the conveying assembly 200.

[0062] Optionally, the locking member 540 includes a damping gasket 541 and a fastening nut 542. The fastening nut 542 can press on the first connecting rod 510 or the second connecting rod 520 through the damping gasket 541. In this case, when the conveying assembly 200 is in a hovering state, the rotating pair 500 has a damping effect, which can further improve the stability of the conveying assembly 200 in the hovering state; in addition, when the fastening nut 542 presses on the damping gasket 541, the deformation degree of the damping gasket 541 can be adjusted by changing the torque to adjust the damping magnitude.

[0063] Optionally, the number of damping gaskets 541 sleeved on the opposite ends of the connecting shaft 530 can be at least two to enhance the damping effect.

[0064] Optionally, the first link 510 can be directly connected to the conveying assembly 200, and the second link 520 can be directly connected to the device main body 100; alternatively, in other embodiments, the rotating pair 500 further includes a first support 560 and a second support 570. The first support 560 is disposed on the conveying assembly 200, and the first end of the first link 510 is rotatably connected to the first support 560, so that the first link 510 is connected to the conveying assembly 200 through the first support 560. The second support 570 is disposed on the device main body 100, and the first end of the second link 520 is rotatably connected to the second support 570, so that the second link 520 is connected to the conveying assembly 200 through the second support 570. By providing the first support 560 and the second support 570, it is convenient to connect the first link 510 to the conveying assembly 200 and the second link 520 to the device main body 100; moreover, the connection area between the first link 510 and the conveying assembly 200 and the connection area between the second link 520 and the device main body 100 can be increased, thereby improving the stability of the first link 510 and the second link 520.

[0065] Optionally, the number of the connecting shafts 530 is at least two, and the locking members 540 are provided in one-to-one correspondence with the connecting shafts 530. The first end of the first link 510 and the first support 560 are both sleeved on the connecting shaft 530. At least one of the opposite first end and second end of the connecting shaft 530 is sleeved with a locking member 540, and the locking member 540 is in locking cooperation with the first link 510 or the first support 560; similarly, the first end of the second link 520 and the second support 570 are both sleeved on the connecting shaft 530. At least one of the opposite first end and second end of the connecting shaft 530 is sleeved with a locking member 540, and the locking member 540 is in locking cooperation with the second link 520 or the second support 570, so that the rotating pair 500 is self-locked.

[0066] In an alternative embodiment, in the length direction of the security inspection passage 110, the rotation center axis of the conveying assembly 200 is located in the central region of the conveying assembly 200, that is, the lengths of the first part and the second part of the conveying assembly 200 on both sides of its rotation center axis are equal or approximately equal. This can make the weights of the first part and the second part substantially the same, thereby improving the rotational stability and hovering stability of the conveying assembly 200. Of course, in the length direction of the security inspection passage 110, the lengths of the first part and the second part of the conveying assembly 200 on both sides of its rotation center axis may also be unequal.

[0067] In another alternative embodiment, in the length direction of the security inspection passage 110, the rotation central axis of the conveying assembly 200 is located in the central region of the security inspection passage 110. This can avoid the lengths of the first part and the second part of the conveying assembly 200 on both sides of its rotation central axis located in the security inspection passage 110 being basically the same, thereby preventing the rotation amplitude of one of the first part and the second part from being too large and colliding with the device main body 100. Of course, in the length direction of the security inspection passage 110, the rotation central axis of the conveying assembly 200 can also be arranged close to the entrance end or the exit end of the security inspection passage 110.

[0068] Optionally, in the length direction of the security inspection passage 110, the rotation central axis of the conveying assembly 200 is located in the central region of the conveying assembly 200, and the rotation central axis of the conveying assembly 200 is located in the central region of the security inspection passage 110. This can not only improve the rotation stability and hovering stability of the conveying assembly 200, but also prevent the conveying assembly 200 from colliding with the device main body 100.

[0069] In yet another alternative embodiment, cross beams 150 are provided at both the entrance end and the exit end of the security inspection passage 110 of the device main body 100. The cross beams 150 are located below the conveying assembly 200. The security inspection device further includes a blocking member 700 provided on the cross beams 150. When the angle formed between the bearing surface 210 and the horizontal reference plane can be changed, one end of the conveying assembly 200 close to the cross beam 150 can contact the blocking member 700; the blocking member 700 includes at least one of a limiting member and a buffer member. When the conveying assembly 200 and the device main body 100 are in a first connection state and are connected by a fixed connection assembly, when adjusting the angle formed between the bearing surface 210 and the horizontal reference plane, one end of the conveying assembly 200 close to the cross beam 150 can contact the blocking member 700. At this time, the conveying assembly 200 and the blocking member 700 are in limiting cooperation to prevent the conveying assembly 200 from continuing to rotate. At the same time, the conveying assembly 200 and the blocking member 700 are in buffer cooperation to absorb the kinetic energy of the conveying assembly 200. At this time, the blocking member 700 plays a buffering role, thereby protecting the conveying assembly 200; when the conveying assembly 200 and the device main body 100 are in a second connection state, when the conveying assembly 200 rotates relative to the device main body 100, the angle formed between the bearing surface 210 of the conveying assembly 200 and the horizontal reference plane changes accordingly. At this time, one end of the conveying assembly 200 close to the cross beam 150 can contact the blocking member 700, thereby preventing the conveying assembly 200 from continuing to rotate due to inertia force. At the same time, the conveying assembly 200 and the blocking member 700 are in buffer cooperation to absorb the kinetic energy of the conveying assembly 200. At this time, the blocking member 700 plays a buffering role, thereby protecting the conveying assembly 200. It should be understood that the limiting member and the buffer member can be components realized based on the same physical structure.

[0070] Specifically, the conveying assembly 200 rotates between a first position and a second position. A first blocking member is provided on the cross beam 150 at the entrance end of the security inspection passage 110, and a second blocking member is provided on the cross beam 150 at the exit end of the security inspection passage 110. In the length direction of the security inspection passage 110, the first blocking member and the second blocking member are respectively located on both sides of the rotation center axis of the conveying assembly 200. When the conveying assembly 200 and the device main body 100 are in the first connection state and are connected by a fixed connection assembly, when adjusting the angle formed between the bearing surface 210 and the horizontal reference surface, when the conveying assembly 200 is in the first position, the first end of the conveying assembly 200 can cooperate with the first blocking member (including limit cooperation and buffer cooperation) to block the conveying assembly 200 from continuing to rotate; when the conveying assembly 200 is in the second position, the second end of the conveying assembly 200 cooperates with the second blocking member (including limit cooperation and buffer cooperation) to block the conveying assembly 200 from continuing to rotate, thereby preventing the conveying assembly 200 from colliding with the device main body 100 due to excessive rotation amplitude.

[0071] When the conveying assembly 200 and the device main body 100 are in the second connection state and the conveying assembly 200 is in the first position, the first end of the conveying assembly 200 can cooperate with the first blocking member (including limit cooperation and buffer cooperation) to block the conveying assembly 200 from continuing to rotate; when the conveying assembly 200 and the device main body 100 are in the second connection state and the conveying assembly 200 is in the second position, the second end of the conveying assembly 200 cooperates with the second blocking member (including limit cooperation and buffer cooperation) to block the conveying assembly 200 from continuing to rotate, that is, through the first blocking member and the second blocking member, to block the conveying assembly 200 from having an excessive rotation amplitude during the reciprocating movement between the first position and the second position, and to prevent the conveying assembly 200 from being damaged due to inertia collision with the device main body 100.

[0072] Optionally, the blocking member 700 includes a first part 710 and a second part 720 arranged at intervals. The first part 710 and the second part 720 are arranged at intervals along the width direction of the security inspection passage 110. On the basis of blocking the excessive rotation of the conveying assembly 200, other structures can be avoided.

[0073] Based on the security inspection device disclosed in the embodiments of the present application, it includes two working modes, specifically:

[0074] Mode 1: The conveying assembly 200 is in the first connection state with the device main body 100. At this time, the conveying assembly 200 conveys articles at a fixed angle. The security inspection device inspects the articles and outputs a two-dimensional plane view. The passing speed of articles in this mode is fast, but it is difficult to clearly see some articles hidden behind other articles and blocked. When there are some articles that cannot be clearly seen, you can choose to change the angle for a re-inspection to obtain the perspective of the running direction of the conveying assembly 200, so as to assist in the determination and thus reduce the missed inspection rate.

[0075] Mode 2: The conveying assembly 200 is in the second connection state with the device main body 100. While the conveying assembly 200 conveys articles, the driving assembly 320 drives the conveying assembly 200 to rotate. With the cooperation of multiple scanning perspectives, information on multiple sides of the article is obtained, and a specific algorithm is used to process and reconstruct the two-dimensional images collected from multiple angles, so as to output an image with a 3D effect. This mode can provide richer article information. The staff can more comprehensively understand the placement position, shape and relationship between the articles inside the package, thus reducing the missed inspection rate. At the same time, the image with a 3D effect is also more intuitive and easy to understand, which is beneficial to improving the accuracy of security inspection.

[0076] In addition, the security inspection device disclosed in the embodiment of the present application is provided with triple safety measures to prevent the rotation amplitude of the conveying assembly 200 from being too large and getting out of the track, thus damaging the device. Specifically, the position information of the conveying assembly 200 is obtained through a detection component (such as an encoder), and then the driving source 321 is controlled to work or stop working; after the conveying assembly 200 rotates to the limit position (the first position or the second position), the shielding component 630 shields the light emitted by the first emitting component 610 or the second emitting component 620 to output a signal; the first blocking component and the second blocking component serve as the last guarantee to prevent the rotation amplitude of the conveying assembly 200 from being too large, and absorb the impact kinetic energy of the conveying assembly 200 through its own deformation, thus avoiding damage to the conveying assembly 200 and the device main body 100.

[0077] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A security inspection device, characterized in that: The device comprises a device body (100) and a conveying assembly (200), wherein the device body (100) is provided with a security inspection channel (110), and the device body (100) is provided with a radiation source (120) for emitting radiation to the security inspection channel (110) and a detector assembly (140) for receiving radiation; The conveying component (200) is connected to the device body (100), and the conveying component (200) has a carrying surface (210) for carrying articles, and conveys the articles into the security inspection channel (110); The bearing surface (210) and the horizontal reference plane form an angle that is not zero; The conveying component (200) and the device body (100) are in a first connection state, and in the first connection state and during the process of the security inspection device scanning and inspecting the article, the angle remains unchanged; or, There is a second connection state between the conveying component (200) and the device body (100), and in the second connection state and during the process of the security inspection device scanning and inspecting the article, the size of the included angle can change.

2. The security inspection equipment according to claim 1, characterized in that: In the case of the first connection state: The conveying component (200) is fixedly connected to the device main body (100) so that the size of the angle cannot be changed; or, the conveying component (200) is connected to the device main body (100) via a fixed connection component so that the size of the angle can be changed by adjusting the fixed connection component.

3. The security inspection equipment according to claim 1, characterized in that: The conveying assembly (200) is rotatably connected to the device body (100) via a rotating connection assembly (300). In the second connection state, the size of the angle can be adjusted by rotating the conveying component (200) relative to the device body (100); In the first connection state, and when the angle of the rotating connection assembly (300) is limited, the size of the included angle cannot be changed.

4. The security inspection equipment according to claim 3, characterized in that: The rotating connection component (300) comprises a rotating shaft (310) and a driving component (320). In the width direction of the conveying component (200), the rotating shaft (310) is arranged on two opposite side surfaces of the conveying component (200). The conveying component (200) is rotatably connected to the device body (100) via the rotating shaft (310). The driving component (320) is arranged on the device body (100) and is connected to the rotating shaft (310). The driving component (320) can drive the conveying component (200) to rotate relative to the device body (100) via the rotating shaft (310) to adjust the size of the included angle.

5. The security inspection equipment according to claim 4, characterized in that: The driving assembly (320) comprises a driving source (321) and a transmission mechanism (322); the driving source (321) is arranged on the device body (100); a first end of the transmission mechanism (322) is connected to an output shaft of the driving source (321); a second end of the transmission mechanism (322) is connected to the rotating shaft (310); and the driving source (321) can drive the rotating shaft (310) to rotate via the transmission mechanism (322).

6. The security inspection equipment according to claim 5, characterized in that: In the width direction of the security inspection passage (110), two opposite side walls of the device body (100) are provided with connecting parts (130), and the connecting parts (130) are provided with through holes (131). The security inspection device also includes a bearing assembly (400), and the bearing assembly (400) is detachably arranged on the connecting part (130). The first end of the rotating shaft (310) passes through the through hole (131) and the bearing assembly (400) in sequence, and is connected to the transmission mechanism (322).

7. The security inspection device according to claim 5, characterized in that: The security inspection device further comprises a detection component and a control component, wherein the detection component is arranged on an output shaft of the driving source (321), the detection component is used to detect a rotation parameter of the output shaft of the driving source (321), the control component is electrically connected to both the detection component and the driving source (321), and the control component is used to control a working state of the driving source (321) according to the rotation parameter.

8. The security inspection equipment according to claim 1, characterized in that: The security inspection device further comprises a position detection component (600), wherein the position detection component (600) is used to detect position information of the conveying component (200), so as to adjust the size of the angle according to the position information.

9. The security inspection device according to claim 1, characterized in that: The security inspection device further comprises a rotating pair (500), wherein the rotating pair (500) comprises a first connecting rod (510) and a second connecting rod (520) which are rotatably connected, wherein the first end of the first connecting rod (510) is connected to the conveying assembly (200), and the first end of the second connecting rod (520) is connected to the device body (100), and the second end of the first connecting rod (510) and the second end of the second connecting rod (520) are both sleeved on a connecting shaft (530), and at least one of the first end and the second end of the connecting shaft (530) which are opposite to each other is sleeved with a locking member (540), and the locking member (540) is locked with the first connecting rod (510) or the second connecting rod (520) so that the rotating pair (500) is self-locking.

10. The security inspection device according to claim 1, characterized in that: The entrance and exit ends of the security inspection passage (110) of the device body (100) are both provided with a crossbeam (150), the crossbeam (150) being located below the conveying assembly (200), and the security inspection device further comprising a blocking member (700) arranged on the crossbeam (150). When the size of the included angle is changeable, an end of the conveying assembly (200) close to the crossbeam (150) may contact the blocking member (700); The blocking member (700) comprises at least one of a limiting member and a buffer member.

Images