Security inspection equipment

Abstract

The invention discloses security inspection equipment, and relates to the technical field of security and protection equipment design. The security inspection equipment comprises an equipment main body and a conveying assembly, the equipment main body is provided with a security inspection channel, and the equipment main body is provided with a ray source used for emitting rays to the security inspection channel and a detector assembly used for receiving the rays; the conveying assembly is connected with the equipment main body, the conveying assembly is provided with a bearing surface for bearing articles, and the articles are conveyed into the security check channel; and an included angle which is not zero is formed between the bearing surface and the horizontal reference surface. According to the scheme, the problem that the omission ratio of the existing security inspection equipment is relatively high can be solved.

Description

Technical Field

[0001] The present application belongs to the technical field of security equipment design, and specifically relates to a security inspection equipment. Background Art

[0002] During the process of security inspection equipment detecting items, when the inspected item enters the security inspection channel, the radiation beam passes through the inspected item and hits the detector. Because items of different materials and thicknesses absorb radiation to different degrees, the detector converts the radiation containing the item information into visible light, and then converts it into electrical signals, which are processed by the processor into images.

[0003] At present, when the existing security inspection equipment conducts security inspection on the inspected items, the transmission direction of the conveyor device is perpendicular to the scanning surface of the radiation source, and finally a two-dimensional plane image of the inspected item at a specific angle is obtained. However, if the content of the inspected items is complex, the security inspectors will not be able to fully and accurately understand the placement, shape and relationship of the items. In particular, some items hidden behind other items are easily missed, which leads to a high missed detection rate of the security inspection equipment. Summary of the invention

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

[0005] In order to solve the above technical problems, this application is implemented as follows: The embodiment of the present application provides a security inspection device, including a device body and a conveying assembly, wherein the device body is provided with a security inspection channel, and the device body is provided with a radiation source for emitting radiation to the security inspection channel and a detector assembly for receiving radiation; The conveying assembly is connected to the equipment body, and the conveying assembly has a carrying surface for carrying articles, and conveys the articles to the security inspection channel; The bearing surface and the horizontal reference surface form an angle which is not zero.

[0006] In the embodiment of the present application, the bearing surface of the conveying component is set to form an angle with the horizontal reference plane that is not 0, that is, the bearing surface of the conveying component is set to be inclined. In the process of security inspection of the inspected items by the security inspection equipment, 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 equipment, so as to show a three-dimensional image display effect, thereby realizing 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, you can choose to change an angle for re-inspection, and obtain the information of the inspected items at multiple angles by detecting from multiple angles, and then reconstruct the image through an algorithm to obtain more complete and clear three-dimensional image information of the inspected items, which helps to improve the accuracy of security inspection, thereby reducing the missed detection rate of the security inspection equipment. Therefore, the present application can solve the problem of the high missed detection rate of the current security inspection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 A schematic diagram of the structure of the security inspection equipment disclosed in the embodiment of the present application; Figure 2 This is a schematic diagram of the structure of the security inspection device disclosed in the embodiment of the present application in a first state; Figure 3 It is a structural schematic diagram of the security inspection device disclosed in the embodiment of the present application in the second state; Figure 4 A schematic diagram of the structure of the device body and the bearing assembly disclosed in the embodiment of the present application; Figure 5 This is a schematic diagram of the structure of the conveying assembly disclosed in the embodiment of the present application; Figure 6 An exploded view of the security inspection equipment disclosed in the embodiment of the present application; Figure 7 It is a schematic diagram of the structure of the revolving pair disclosed in the embodiment of the present application; Figure 8 A schematic diagram of a partial structure of a security inspection device disclosed in an embodiment of the present application; Fig. 9 This is a schematic diagram of the structure of a transmission mechanism disclosed in another embodiment of the present application.

[0008] Description of reference numerals: 100-equipment body, 110-security inspection channel, 120-radiation source, 130-connecting part, 131-through hole, 140-detector assembly, 150-crossbeam; 200-transport assembly, 210-bearing surface, 220-positioning hole; 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; 400-bearing assembly; 500-rotation pair, 510-first connecting rod, 520-second connecting rod, 530-connecting shaft, 540-locking member, 541-damping washer, 542-fastening nut, 560-first support, 570-second support; 600-position detection component, 610-first emitting element, 620-second emitting element, 630-shielding element; 700-blocking member, 710-first portion, 720-second portion; 810 - first fastener, 820 - second fastener. DETAILED DESCRIPTION

[0009] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0010] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable 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. are generally of one type, 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 represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0011] The security inspection equipment provided in the embodiment of the present application is described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0012] like Figures 1 to 9As shown, the embodiment of the present application discloses a security inspection device, which includes a device body 100 and a conveying assembly 200. The device body 100 is provided with a security inspection channel 110. The article enters the security inspection channel 110 from the entrance of the security inspection channel 110, and moves from the exit of the security inspection channel 110 to the outside of the security inspection channel 110 after being inspected in the security inspection channel 110. 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. Optionally, the radiation source 120 is used to emit X-rays, and of course, other types of radiation can also be emitted. The embodiment of the present application does not impose specific restrictions on this. Optionally, the detector assembly 140 is arranged opposite to the radiation source 120 in the same direction. The radiation source 120 generates a fan-shaped radiation beam. The conveying assembly 200 pulls the article through the scanning light slit, and the radiation beam is emitted to the article. The detector assembly 140 receives the radiation passing through the article and converts the optical signal into an electrical signal.

[0013] Optionally, one or more radiation sources 120 may be provided on the device body 100 . The radiation source 120 may be provided at the bottom, top or side wall of the security inspection channel 110 . The radiation source 120 cooperates with the detector assembly 140 to form one or more radiation scanning viewing angles.

[0014] The conveying assembly 200 is connected to the device body 100, and the conveying assembly 200 has a carrying surface 210 for carrying articles, and transfers the articles to the security inspection channel 110. Optionally, part of the conveying assembly 200 is located in the security inspection channel 110, that is, the middle part of the conveying assembly 200 can be located in the security inspection channel 110, and the first end and the second end of the conveying assembly 200 are both located outside the security inspection channel 110. Specifically, the first end of the conveying assembly 200 is located at the side where the entrance end of the security inspection channel 110 is located, so as to facilitate the placement of the articles to be inspected, and the second end of the conveying assembly 200 is located at the side where the exit end of the security inspection channel 110 is located, so as to facilitate the removal of the inspected articles.

[0015] The bearing surface 210 and the horizontal reference plane form an angle which is not zero.

[0016] In the embodiment of the present application, the bearing surface 210 of the conveying component 200 is set to form an angle with the horizontal reference plane that is not 0, that is, the bearing surface 210 of the conveying component 200 is tilted. In the process of security inspection of the inspected items 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 ray source 120, so as to obtain an item scanning image at a scanning angle different from that of the existing security inspection equipment, so as to show a three-dimensional image display effect, thereby realizing 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, you can choose to change an angle for re-inspection, and obtain the information of the inspected items at multiple angles by detecting from multiple angles, and then reconstruct the image through an algorithm to obtain more complete and clear three-dimensional image information of the inspected items, which helps to improve the accuracy of security inspection, thereby reducing the missed detection rate of the security inspection equipment. Therefore, the present application can solve the problem of the high missed detection rate of the current security inspection equipment.

[0017] In an optional embodiment, the conveying component 200 and the device body 100 have a first connection state. In the first connection state and during the process of the security inspection device scanning and detecting the article, 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, and at this time, the detection angle is single, and the inspected article can quickly pass through the security inspection channel 110, thereby improving the security inspection efficiency of the security inspection device; or, the conveying component 200 and the device body 100 have a second connection state. In the second connection state and during the process of the security inspection device scanning and detecting the article, 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, and the article information is detected through multiple detection angles. At this time, the time for the inspected article to pass through the security inspection channel 110 can be extended, so that the image information obtained by each detection angle is clearer, thereby obtaining clearer three-dimensional image information, which can reduce the number of re-inspections, or even eliminate the need for re-inspections, thereby improving the security inspection efficiency of the security inspection device.

[0018] It should be noted that, in the above embodiment, the time for the inspected object to pass through the security inspection channel 110 in the first connection state may be shorter than the time for the inspected object to pass through the security inspection channel 110 in the second connection state.

[0019] In a further optional embodiment, when the conveying assembly 200 and the device body 100 are in the first connection state: The conveying component 200 is fixedly connected to the device body 100 (for example, by welding) so that the angle formed between the bearing surface 210 and the horizontal reference plane cannot be changed, which can improve the connection stability and firmness between the conveying component 200 and the device body 100.

[0020] Alternatively, the conveying component 200 is connected to the equipment body 100 by a fixed connection component (such as a detachable connection by means of screws, bolts, etc.), so that the size of the angle formed between the bearing surface 210 and the horizontal reference plane can be changed by adjusting the fixed connection component. In this case, before the security inspection, the size of the angle formed between the bearing surface 210 and the horizontal reference plane can be adjusted to obtain the actual required detection viewing angle, and then the conveying component 200 is fixed by the fixed connection component so that the angle remains unchanged during the security inspection. In other words, this solution can flexibly adjust the size of the angle formed between the bearing surface 210 and the horizontal reference plane according to actual needs, thereby meeting different detection requirements.

[0021] Optionally, when the conveying component 200 and the device body 100 are in the first connection state and the two are connected by a fixed connection component, during the security inspection process, the conveying component 200 can be first arranged horizontally to transport the inspected items. If there are other items that cannot be seen clearly, the conveying component 200 can be adjusted to form an angle that is not zero between the bearing surface 210 and the horizontal reference plane, that is, the conveying component 200 is arranged at an angle, and re-inspection is performed by changing an angle to obtain information about the inspected items at different angles.

[0022] In another optional embodiment, the conveying component 200 is rotatably connected to the equipment body 100 via a rotating connection component 300. In the second connection state, the size of the angle formed between the bearing surface 210 and the horizontal reference plane can be adjusted by rotating the conveying component 200 relative to the equipment body 100, that is, since the conveying component 200 can rotate relative to the equipment body 100, when the conveying component 200 rotates relative to the equipment body 100, the size of the angle formed between the bearing surface 210 of the conveying component 200 and the horizontal reference plane changes accordingly, thereby obtaining multiple detection viewing angles; in the first connection state, and when the angle of the rotating connection component 300 is limited (that is, the rotating connection component 300 is restricted and cannot rotate relative to each other), the size of the angle formed between the bearing surface 210 and the horizontal reference plane cannot be changed, that is, during the security inspection process, the angle formed between the bearing surface 210 and the horizontal reference plane remains unchanged. Specifically, when the conveying component 200 and the device body 100 are in the first connection state, the rotating connection component 300 is angle-limited so that the angle formed between the bearing surface 210 and the horizontal reference plane remains unchanged. At this time, the detection angle is single, and the inspected items can quickly pass through the security inspection channel 110; when the conveying component 200 and the device body 100 are in the second connection state, the conveying component 200 rotates relative to the device body 100 to adjust the size of the angle formed between the bearing surface 210 and the horizontal reference plane, and obtains item information from multiple detection angles. In other words, the security inspection device disclosed in the scheme can flexibly switch between the first connection state and the second connection state according to actual detection needs, thereby meeting multiple detection needs.

[0023] In an optional embodiment, the rotating connection component 300 includes a rotating shaft 310 and a driving component 320. In the width direction of the conveying component 200, the two opposite sides of the conveying component 200 are provided with rotating shafts 310. The conveying component 200 is rotatably connected to the equipment body 100 through the rotating shaft 310. The driving component 320 is arranged on the equipment body 100. The driving component 320 is connected to the conveying component 200. The driving component 320 can drive the conveying component 200 to rotate relative to the equipment body 100 through the rotating shaft 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 of the bearing surface 210 and the radiation source 120 changes, so as to adjust the size of the angle formed between the bearing surface 210 and the horizontal reference plane. This solution drives the conveying component 200 to rotate through the driving component 320, which can improve the automation performance of the security inspection equipment and save labor. Of course, the driving assembly 320 may not be provided, and the conveying assembly 200 may be manually driven to rotate relative to the device body 100. When the conveying assembly 200 needs to be fixed relative to the device body 100, the conveying assembly 200 may be positioned by a positioning member.

[0024] In further optional embodiments, the drive assembly 320 includes a drive source 321 and a transmission mechanism 322, and optionally, the drive source 321 can be a motor, etc., and the present application embodiment does not specifically limit this. The drive source 321 is arranged on the equipment main body 100, and the first end of the transmission mechanism 322 is connected to the output shaft of the drive source 321, and the second end of the transmission mechanism 322 is connected to the rotating shaft 310, and the drive source 321 can drive the rotating shaft 310 to rotate through the transmission mechanism 322, and the rotating shaft 310 is fixedly connected with the conveying assembly 200, and the rotating shaft 310 can drive the conveying assembly 200 to rotate. In this solution, the drive source 321 drives the conveying assembly 200 to rotate through the transmission mechanism 322, and the distance between the drive source 321 and the rotating shaft 310 can be flexibly selected, which can facilitate the arrangement of the drive source 321. Of course, the transmission mechanism 322 can also be not provided, and the drive source 321 is directly connected to the rotating shaft 310.

[0025] Optionally, the transmission mechanism 322 can be a transmission structure with a self-locking function such as a 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 driving source 321, the second transmission wheel 322c is sleeved on the rotating shaft 310, the transmission belt 322a is rotatably sleeved on the first transmission wheel 322b and the second transmission wheel 322c, and the driving 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 driving source 321, which has the characteristics of simple structure and stable transmission. Optionally, the diameter of the second transmission wheel 322 c may be equal to the diameter of the first transmission wheel 322 b ; or, the diameter of the second transmission wheel 322 c may be greater than the diameter of the first transmission wheel 322 b , which may increase the transmission ratio and thus save the driving force of the driving source 321 . In an optional embodiment, the transmission belt 322a is a synchronous belt, in which case the first transmission wheel 322b is a first synchronous pulley, the second transmission wheel 322c is a second synchronous pulley, and the transmission belt 322a is provided with transmission teeth, and the transmission belt 322a is meshed with both the first transmission wheel 322b and the second transmission wheel 322c through the transmission teeth, which can prevent the transmission belt 322a from rotating relative to the first transmission wheel 322b and the second transmission wheel 322c when the driving source 321 is in a stopped state, so that the transmission mechanism 322 is self-locking, thereby ensuring the hovering stability of the conveying assembly 200. Of course, the transmission teeth may not be provided, in which case the transmission belt 322a is relatively fixed with the first transmission wheel 322b and the second transmission wheel 322c through friction to achieve self-locking.

[0026] Optionally, during the self-locking process of the transmission mechanism 322, the transmission teeth may cooperate with damping oil to enhance the self-locking stability of the transmission belt and the first transmission wheel 322b and the second transmission wheel 322c.

[0027] Optionally, the position of the first transmission wheel 322b may be equal to the position of the second transmission wheel 322c; or, the position of the first transmission wheel 322b is lower than the position of the second transmission wheel 322c, which can prevent the first transmission wheel 322b from interfering with the conveying assembly 200. Optionally, the driving component 320 also includes a base 323, which is set on the device body 100 by screws, welding, etc., and the driving source 321 is detachably set on the base 323 by screws, etc., so that the driving source 321 is connected to the device body 100 through the base 323, thereby facilitating the setting of the driving source 321.

[0028] In another optional embodiment, in the width direction of the security inspection channel 110, the two opposite side walls of the equipment body 100 are provided with a connecting portion 130, and the connecting portion 130 is provided with a through hole 131. The security inspection device also includes a bearing assembly 400, and the bearing assembly 400 is detachably arranged on the connecting portion 130. Optionally, the bearing assembly 400 includes a bearing seat and a bearing, and the bearing seat is detachably arranged on the connecting portion 130 through a first fastener 810 (such as a screw), and the bearing is arranged on the bearing seat. 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. The bearing has the characteristics of compact structure, small friction resistance, and flexible rotation. The bearing assembly 400 in this solution can play the role of supporting the rotating shaft 310, and at the same time can ensure that the rotating shaft 310 rotates flexibly, so that the rotating shaft 310 drives the conveying assembly 200 to rotate flexibly. Of course, the bearing assembly 400 may not be provided.

[0029] In another optional embodiment, the driving assembly 320 is disposed on the outer surface of the device body 100, so as to avoid interference with the structure disposed in the accommodation space of the device body 100. Positioning holes 220 are provided on both opposite sides of the conveying assembly 200, and a connecting flange 311 is provided on the circumference of the rotating shaft 310. The rotating shaft 310 is detachably connected to the conveying assembly 200 through the connecting flange 311 to facilitate the disassembly and assembly of the rotating shaft 310; optionally, the connecting 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 positioned and matched 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 improving the connection stability between the two; the positioning hole 220 can provide a guide 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 and the positioning hole 220 are positioned and matched, which can prevent the rotating shaft 310 from moving relative to the conveying assembly 200, thereby improving the stability of the rotating shaft 310. Of course, the bearing assembly 400 can also be detachably arranged on the side of the connecting portion 130 facing the security inspection channel 110, and the rotating shaft 310 and the conveying assembly 200 can also be connected by welding or the like, and the connection flange 311 can also be not provided, and the positioning hole 220 can also be not provided.

[0030] In another optional embodiment, the security inspection equipment also includes a detection member and a control member. The detection member is arranged on the output shaft of the driving source 321. The detection member is used to detect the rotation parameters of the output shaft of the driving source 321. Here, the rotation parameters can specifically be the rotation angular velocity, the number of rotations, etc. of the output shaft of the driving source 321. The embodiment of the present application does not impose specific restrictions on this. The control member is electrically connected to the detection member and the driving source 321. The control member 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 rotate, 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, thereby controlling the working state of the driving source 321, so as to accurately control the hovering position of the conveying assembly 200 and the rotation amplitude of the conveying assembly 200 during the reciprocating motion.

[0031] Optionally, the detection component can be an encoder, which can output a voltage signal of the angular velocity of the output shaft of the driving source 321, and transmit the voltage signal to the control component to convert the voltage signal into the rotation angle and position information of the conveying component 200, so as to accurately control the working state of the driving source 321, and more accurately combine the image information with the angle information corresponding to its sampling to perform image reconstruction, so as to avoid deviations between the angle information and the image, the appearance of artifacts, and the impact on image quality.

[0032] In an optional embodiment, the security inspection device further includes a position detection component 600, which is used to detect the position information of the conveying component 200, so that the size of the angle formed between the bearing surface 210 and the horizontal reference plane can be adjusted according to the position information. Specifically, when the conveying component 200 and the device body 100 are in the first connection state, the conveying component 200 and the device body 100 are connected by a fixed connection component (such as a detachable connection by screws, bolts, etc.), so that the size of the angle formed between the bearing surface 210 and the horizontal reference plane can be changed by adjusting the fixed connection component. Before the security inspection, when the position information detected by the position detection component 600 indicates that the angle formed between the bearing surface 210 and the horizontal reference plane is equal to the preset angle, the conveying component 200 is fixed by the fixed connection component; when the conveying component 200 and the device body 100 are in the second connection state, the conveying component 200 accurately obtains the angles of multiple detection viewing angles according to the position information detected by the position detection component 600, thereby improving the integrity of the three-dimensional image information of the acquired object.

[0033] 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 component, wherein the position detection assembly 600 is used to detect the position information of the conveying assembly 200, and the control component is electrically connected to both the position detection assembly 600 and the driving assembly 320, and the control component is used to control the working state of the driving assembly 320 according to the position information, wherein 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, etc. By setting the position detection assembly 600, this solution can prevent the conveying assembly 200 from colliding with the device body 100 due to excessive rotation, and accurately control the hovering position of the conveying assembly 200.

[0034] In a further optional embodiment, the conveying component 200 rotates between the first position and the second position, the position detection component 600 includes a first emitting element 610, a second emitting element 620 and a shielding element 630, optionally, at least one of the first emitting element 610 and the second emitting element 620 can be a photoelectric switch, one of the conveying component 200 and the device body 100 is provided with a shielding element 630, and the other is provided with a first emitting element 610 and a second emitting element 620, the position of the first emitting element 610 is higher than the position of the second emitting element 620, when the conveying component 200 and the device body 100 are in the second connection state and the conveying component 200 is in the first position, the shielding element 630 is opposite to the first emitting element 610 to block the light emitted by the first emitting element 610; when the conveying component 200 and the device body 100 are in the second connection state and the conveying component 200 is in the second position, the shielding element 630 is opposite to the second emitting element 620 to block the light emitted by the second emitting element 620. The position detection component 600 in this solution uses the principle of photoelectric detection, which has the characteristics of anti-electromagnetic interference, which is conducive to improving the accuracy of detection and has a faster response. Of course, the position detection component 600 can also be detected by laser.

[0035] Optionally, in the first connection state, when the conveying component 200 is connected to the equipment body 100 by a fixed connection component, when the size of the angle formed between the bearing surface 210 and the horizontal reference plane is adjusted, when the conveying component 200 is in the first position, the shielding member 630 is opposite to the first emitting member 610 to block the light emitted by the first emitting member 610; when the conveying component 200 is in the second position, the shielding member 630 is opposite to the second emitting member 620 to block the light emitted by the second emitting member 620, that is, the photoelectric detection principle is utilized to improve the detection accuracy of the position detection component 600. In another optional embodiment, the security inspection equipment also includes a rotating pair 500, which is arranged on the side of the conveying component 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 component 200, and the first end of the second connecting rod 520 is connected to the equipment body 100. The second end of the first connecting rod 510 and the second end of the second connecting rod 520 are both sleeved on the connecting shaft 530. At least one of the first end and the second end of the connecting shaft 530 that are opposite to each other is provided with a locking member 540. The locking member 540 is locked with the first connecting rod 510 or the second connecting rod 520 to make the rotating pair 500 self-locking. In this solution, on the basis of ensuring that the conveying assembly 200 can rotate flexibly, the rotating pair 500 can play the role of auxiliary support 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 equipment body 100, that is, the conveying assembly 200 is in a suspended state, the locking member 540 is locked with the first connecting rod 510 or the second connecting rod 520 to make the rotating pair 500 self-locking, thereby improving the stability of the conveying assembly 200 in the suspended state.

[0036] Optionally, in the width direction of the security inspection channel 110, a rotating pair 500 is provided on both sides of the conveying component 200 opposite to each other, so that during the rotation of the conveying component 200, the forces on both sides of the conveying component 200 are more balanced, thereby further improving the stability of the conveying component 200; of course, in the width direction of the security inspection channel 110, a rotating pair 500 may be provided on only one side of the conveying component 200.

[0037] Optionally, in the length direction of the security inspection channel 110, a rotating pair 500 is provided on both sides of the rotation center axis of the conveying component 200 opposite to each other, so that during the rotation of the conveying component 200, the forces on both ends of the conveying component 200 are more balanced, thereby improving the stability of the conveying component 200.

[0038] Optionally, the locking member 540 includes a damping gasket 541 and a fastening nut 542, and the fastening nut 542 can be pressed 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 suspended state, the rotating pair 500 has a damping effect, which can further improve the stability of the conveying assembly 200 in the suspended state; in addition, when the fastening nut 542 is pressed on the damping gasket 541, the deformation degree of the damping gasket 541 can be adjusted by changing the torque to adjust the damping size.

[0039] Optionally, the number of the damping washers 541 sleeved on the two opposite ends of the connecting shaft 530 may be at least two to enhance the damping effect.

[0040] Optionally, the first connecting rod 510 and the conveying assembly 200, and the second connecting rod 520 and the equipment main body 100 can be directly connected; or, in other embodiments, the rotating pair 500 also includes a first support 560 and a second support 570, the first support 560 is arranged on the conveying assembly 200, the first end of the first connecting rod 510 is rotatably connected to the first support 560, so that the first connecting rod 510 is connected to the conveying assembly 200 through the first support 560, the second support 570 is arranged on the equipment main body 100, and the first end of the second connecting rod 520 is rotatably connected to the second support 570, so that the second connecting rod 520 is connected to the conveying assembly 200 through the second support 570. This solution facilitates the connection between the first connecting rod 510 and the conveying assembly 200, and the connection between the second connecting rod 520 and the equipment body 100 by setting the first supporting seat 560 and the second supporting seat 570; and can increase the connection area between the first connecting rod 510 and the conveying assembly 200, and the connection area between the second connecting rod 520 and the equipment body 100, thereby improving the stability of the first connecting rod 510 and the second connecting rod 520.

[0041] Optionally, the number of connecting shafts 530 is at least two, and the locking piece 540 is arranged in a one-to-one correspondence with the connecting shafts 530. The first end of the first connecting rod 510 and the first support 560 are both mounted on the connecting shaft 530, and at least one of the first end and the second end opposite to each other of the connecting shaft 530 is mounted with the locking piece 540, and the locking piece 540 is locked and matched with the first connecting rod 510 or the first support 560; similarly, the first end of the second connecting rod 520 and the second support 570 are both mounted on the connecting shaft 530, and at least one of the first end and the second end opposite to each other of the connecting shaft 530 is mounted with the locking piece 540, and the locking piece 540 is locked and matched with the second connecting rod 520 or the second support 570, so that the rotating pair 500 is self-locking.

[0042] In an optional embodiment, in the length direction of the security inspection channel 110, the rotation center axis of the conveying assembly 200 is located in the central area of ​​the conveying assembly 200, that is, the lengths of the first part and the second part of the conveying assembly 200 located on both sides of its rotation center axis are equal or approximately equal, which can make the weight of the first part and the second part substantially consistent, thereby improving the rotation stability and hovering stability of the conveying assembly 200. Of course, in the length direction of the security inspection channel 110, the lengths of the first part and the second part of the conveying assembly 200 located on both sides of its rotation center axis may also be unequal.

[0043] In another optional embodiment, in the length direction of the security inspection channel 110, the rotation center axis of the conveying assembly 200 is located in the central area of ​​the security inspection channel 110, which can prevent the first part and the second part of the conveying assembly 200 located on both sides of the rotation center axis from being substantially the same length in the security inspection channel 110, thereby preventing one of the first part and the second part from rotating too much and colliding with the device body 100. Of course, in the length direction of the security inspection channel 110, the rotation center axis of the conveying assembly 200 can also be set close to the entrance end of the security inspection channel 110 or the exit end of the security inspection channel 110.

[0044] Optionally, in the length direction of the security inspection channel 110, the rotation center axis of the conveying component 200 is located in the central area of ​​the conveying component 200, and the rotation center axis of the conveying component 200 is located in the central area of ​​the security inspection channel 110, which can not only improve the rotation stability and hovering stability of the conveying component 200, but also avoid the collision between the conveying component 200 and the equipment body 100.

[0045] In another optional embodiment, a beam 150 is provided at both the entrance and exit ends of the security inspection channel 110 of the equipment body 100, and the beam 150 is located below the conveying component 200. The security inspection equipment also includes a blocking member 700 arranged on the beam 150. When the size of the angle formed between the bearing surface 210 and the horizontal reference plane can be changed, the end of the conveying component 200 close to the beam 150 can contact the blocking member 700; the blocking member 700 includes at least one of a limit member and a buffer member. When the conveying assembly 200 and the equipment body 100 are in a first connection state and the two are connected by a fixed connection assembly, when the angle formed between the bearing surface 210 and the horizontal reference plane is adjusted, the end of the conveying assembly 200 close to the crossbeam 150 can contact the blocking member 700. At this time, the conveying assembly 200 and the blocking member 700 are limitedly matched to prevent the conveying assembly 200 from continuing to rotate. At the same time, the conveying assembly 200 and the blocking member 700 are buffered 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 body 100 are in the second connection state, when the conveying assembly 200 rotates relative to the device 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, the end of the conveying assembly 200 close to the crossbeam 150 can contact the blocking member 700, thereby preventing the conveying assembly 200 from continuing to rotate due to inertia. At the same time, the conveying assembly 200 and the blocking member 700 buffer 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 limiter and the buffer can be components implemented based on the same physical structure.

[0046] Specifically, the conveying assembly 200 rotates between a first position and a second position, a first blocking member is provided on the crossbeam 150 located at the entrance end of the security inspection channel 110, and a second blocking member is provided on the crossbeam 150 located at the exit end of the security inspection channel 110. In the length direction of the security inspection channel 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 equipment body 100 are in the first connection state and the two are connected by a fixed connection assembly, when the size of the angle formed between the bearing surface 210 and the horizontal reference plane is adjusted, when the conveying assembly 200 is located in the first position, the first end of the conveying assembly 200 can cooperate with the first blocking member (including limiting cooperation and buffer cooperation) to prevent the conveying assembly 200 from continuing to rotate; when the conveying assembly 200 is located in the second position, the second end of the conveying assembly 200 cooperates with the second blocking member (including limiting cooperation and buffer cooperation) to prevent the conveying assembly 200 from continuing to rotate, thereby preventing the conveying assembly 200 from colliding with the equipment body 100 due to excessive rotation.

[0047] When the conveying component 200 and the equipment main body 100 are in the second connection state and the conveying component 200 is located in the first position, the first end of the conveying component 200 can cooperate with the first blocking member (including limiting cooperation and buffer cooperation) to prevent the conveying component 200 from continuing to rotate; when the conveying component 200 and the equipment main body 100 are in the second connection state and the conveying component 200 is located in the second position, the second end of the conveying component 200 cooperates with the second blocking member (including limiting cooperation and buffer cooperation) to prevent the conveying component 200 from continuing to rotate, that is, through the first blocking member and the second blocking member, the conveying component 200 is prevented from rotating too much during the reciprocating motion between the first position and the second position, so as to avoid the conveying component 200 from colliding with the equipment main body 100 due to inertia and being damaged.

[0048] Optionally, the blocking member 700 includes a first portion 710 and a second portion 720 that are spaced apart from each other. The first portion 710 and the second portion 720 are spaced apart from each other along the width direction of the security inspection channel 110 , and other structures can be avoided while preventing the conveying assembly 200 from excessively rotating.

[0049] The security inspection device disclosed in the embodiment of the present application includes two working modes, specifically: Mode 1: The conveying component 200 and the device body 100 are in the first connection state. At this time, the conveying component 200 conveys the items at a fixed angle, and the security inspection device inspects the items and outputs a two-dimensional plane view. In this mode, the speed of the items is fast, but it is difficult to see some items hidden behind other items. When some items cannot be seen clearly, you can choose to change an angle for re-inspection to obtain the viewing angle of the running direction of the conveying component 200, so as to assist in the judgment and reduce the missed detection rate.

[0050] Mode 2: The conveying component 200 and the device body 100 are in the second connection state. The conveying component 200 conveys the items while the driving component 320 drives the conveying component 200 to rotate. Multiple scanning angles are used to obtain information on multiple sides of the items, and a specific algorithm is used to process and reconstruct the collected multi-angle two-dimensional images, thereby outputting a 3D effect image. This mode can provide richer item information, and the staff can have a more comprehensive understanding of the placement, shape and relationship of the items inside the package, thereby reducing the missed detection rate. At the same time, the 3D effect image is more intuitive and easy to understand, which is conducive to improving the accuracy of security inspection.

[0051] In addition, the security inspection equipment disclosed in the embodiment of the present application is provided with triple safety measures to prevent the conveying component 200 from rotating too much and deviating from the track, thereby damaging the equipment. Specifically, the position information of the conveying component 200 is obtained through a detection member (such as an encoder), and then the driving source 321 is controlled to work or stop working; after the conveying component 200 rotates to the extreme position (the first position or the second position), the shielding member 630 blocks the light emitted by the first emitting member 610 or the second emitting member 620 to output a signal; the first blocking member and the second blocking member serve as the last guarantee to prevent the conveying component 200 from rotating too much, and absorb the impact kinetic energy of the conveying component 200 through their own deformation, thereby avoiding damage to the conveying component 200 and the equipment body 100.

[0052] 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 the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection 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.

2. The security inspection equipment according to claim 1, characterized in that: 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.

3. The security inspection equipment according to claim 2, 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.

4. The security inspection equipment according to claim 2, 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.

5. The security inspection equipment according to claim 4, 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.

6. The security inspection equipment according to claim 5, 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).

7. The security inspection device according to claim 6, 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).

8. The security inspection equipment according to claim 6, 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.

9. The security inspection equipment according to claim 2, 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.

10. The security inspection equipment according to claim 2, 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.

11. The security inspection equipment according to claim 2, 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