Security inspection equipment

Abstract

The invention discloses security inspection equipment, which comprises a ray emitter, a ray receiver and a detection channel, and is characterized in that the detection channel comprises a radiation section, and the ray emitter and the ray receiver are respectively located at two opposite sides of the radiation section; the channel wall defining the radiation section comprises a first wear-resistant layer, a supporting interlayer and a second wear-resistant layer which are arranged in a stacked mode, and detection rays emitted by the ray emitter sequentially penetrate through the first wear-resistant layer, the supporting interlayer and the second wear-resistant layer to enter the radiation section so as to scan an object to be detected; detection rays generated after the object to be detected is scanned sequentially penetrate through the second wear-resistant layer, the supporting interlayer and the first wear-resistant layer and then are received by the ray receiver, and the transmission capacity of the first wear-resistant layer and the second wear-resistant layer to the detection rays is smaller than the transmission capacity of the supporting interlayer to the detection rays. According to the scheme, the problem of poor imaging effect of security inspection equipment in related technologies can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of security inspection equipment, and in particular to a security inspection equipment. Background Art

[0002] CT (Computed Tomography) security inspection equipment, commonly known as computer tomography equipment, is a type of X-ray imaging technology that is widely used in security inspection and medical diagnosis. In the field of security inspection, the main function of CT security inspection equipment is to perform non-destructive inspection on luggage, parcels, cargo, mail, etc. to identify internal structures and potential threat items, etc., to ensure the safety of public places and transportation.

[0003] When the CT security inspection equipment is working, the object to be tested enters from one end of the channel and leaves from the other end, passing through the CT detection channel in the middle. When the object to be tested passes through the detection channel, the CT ray source performs effective detection. In this process, the CT detection channel needs to support the object to be tested to pass stably. The more stable the moving state of the object to be tested is, the better the imaging effect is. However, in the related art, the CT detection channel is composed of pure carbon fiber plates. In order to ensure the strength and rigidity of the structure, the pure carbon fiber plates are set thicker. Although the thicker the pure carbon fiber plates are set, the strength and rigidity of the structure can be improved, so that the moving state of the object to be tested is stable, but the thicker the thickness of the pure carbon fiber plates is, the more the penetration effect of the X-rays will be affected, so that the imaging effect is poor. Although the pure carbon fiber plates are set thinner, the X-ray penetration rate can be improved, but the strength and rigidity of the detection channel are poor, so that the stability of the moving state of the object to be tested is poor, so that the imaging effect is still poor. Of course, the above problems are not limited to CT security inspection equipment, but also exist in other security inspection equipment. Therefore, the security inspection equipment in the related art has the problem of poor imaging effect. Summary of the invention

[0004] The invention discloses a security inspection device to solve the problem of poor imaging effect of the security inspection device in the related art.

[0005] In order to solve the above-mentioned technical problems, the present invention is achieved as follows: The present application discloses a security inspection device, which includes a ray transmitter, a ray receiver and a detection channel, wherein the detection channel includes a radiation section, and the ray transmitter and the ray receiver are respectively located on opposite sides of the radiation section; the channel wall surrounding the radiation section includes a first wear-resistant layer, a supporting interlayer and a second wear-resistant layer which are stacked, and the detection ray emitted by the ray transmitter sequentially passes through the first wear-resistant layer, the supporting interlayer and the second wear-resistant layer to enter the radiation section to scan the object to be detected, and the detection ray after scanning the object to be detected sequentially passes through the second wear-resistant layer, the supporting interlayer and the first wear-resistant layer to be received by the ray receiver; wherein the transmittance of the first wear-resistant layer and the second wear-resistant layer to the detection ray is less than the transmittance of the supporting interlayer to the detection ray.

[0006] The technical solution adopted by the present invention can achieve the following technical effects: The security inspection equipment disclosed in the embodiment of the present application arranges the channel wall surrounding the radiation section into a structure including a first wear-resistant layer, a supporting interlayer and a second wear-resistant layer stacked in sequence, so that the first wear-resistant layer and the second wear-resistant layer can improve the wear resistance and hardness of the radiation section, and by arranging a supporting interlayer between the first wear-resistant layer and the second wear-resistant layer, the strength and rigidity of the radiation section can be improved, and then when the object to be detected passes through the radiation section, the vibration amplitude of the radiation section is relatively small, so that the movement stability of the object to be detected is better, and then the imaging effect of the security inspection equipment can be improved.

[0007] Since the smaller the structure's ability to transmit detection rays, the greater the effect of its thickness on the ability to transmit detection rays, the thicker the structure, the smaller the ability to transmit detection rays. In the embodiment of the present application, a supporting interlayer with a greater ability to transmit detection rays is provided, so that the thickness change of the supporting interlayer has a smaller effect on the ability to transmit detection rays. Therefore, the supporting interlayer can be set thicker to ensure the strength and rigidity of the radiation section, and the thickness of the first wear-resistant layer and the second wear-resistant layer can be set relatively thin, so that the ability to transmit detection rays of the first wear-resistant layer and the second wear-resistant layer can be improved while ensuring wear resistance and hardness, thereby improving the ability to transmit detection rays of the radiation section as a whole, thereby improving the imaging effect of the security inspection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is an overall schematic diagram of the security inspection equipment disclosed in the embodiment of the present invention; Figure 2 A schematic diagram of the security inspection device disclosed in an embodiment of the present invention from another perspective; Figure 3 It is a schematic diagram of the cooperation between the detection channel disclosed in the embodiment of the present invention and the bottom support frame and the top support frame; Figure 4for Figure 3 Schematic diagram from another perspective; Figure 5 The distribution range of the radiation area and the shielding area near the detection channel disclosed in the embodiment of the present invention; Figure 6 It is a partially enlarged schematic diagram of the security inspection equipment disclosed in the embodiment of the present invention; Figure 7 A partial cross-sectional view of a security inspection device disclosed in an embodiment of the present invention; Figure 8 for Figure 7 A local enlarged schematic diagram of the middle A; Fig. 9 for Figure 7 A partial enlarged schematic diagram of point B in the middle; Fig.10 A schematic diagram of the structure of a radiation section disclosed in an embodiment of the present invention; Fig.11 It is a schematic diagram of the structure of the shielding segment disclosed in an embodiment of the present invention.

[0009] Description of reference numerals: 100-ray emitter, 200-ray receiver, 300-detection channel, 310-radiation section, 311-first wear-resistant layer, 312-support interlayer, 313-second wear-resistant layer, 314-first shielding layer, 320-shielding section, 321-shielding bottom, 321a-bottom body, 321b-flange, 322-shielding side, 323-shielding top, 330-connector, 340-transition connecting frame, 350-support plate, 351-base layer, 352-second shielding layer, 410-bottom support frame, 420-top support frame, 421-cross beam, 422-vertical beam, 430-connecting beam, 431-first connecting plate, 432-second connecting plate, 510-annular support frame, 520-reinforcement ribs, 530-shielding retaining wall, 610-first connecting channel, 620-second connecting channel, 630-transport device, 700-Swivel bracket, 800 - driving mechanism, 910 - control device, 920 - cooling device, 930 - frame, 940 - base, 950 - gantry. DETAILED DESCRIPTION

[0010] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0011] The technical solutions disclosed in various embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0012] Please refer to Figures 1 to 11 The embodiment of the present invention discloses a security inspection device, which can be used to inspect luggage, parcels, goods, mails, etc.

[0013] The disclosed security inspection device includes a ray transmitter 100, a ray receiver 200 and a detection channel 300. The ray transmitter 100 can emit detection rays, such as x-rays, gamma rays, alpha rays, etc., and the ray receiver 200 can receive the detection rays emitted by the ray transmitter 100.

[0014] The detection channel 300 includes a radiation section 310, which has good transmittance to the detection rays emitted by the ray emitter 100. The ray emitter 100 and the ray receiver 200 are both located outside the detection channel 300, and the ray emitter 100 and the ray receiver 200 are respectively located on opposite sides of the radiation section 310, and the ray emitter 100 and the ray receiver 200 are arranged opposite to each other, so that the detection rays emitted by the ray emitter 100 can pass through the radiation section 310 and then be received by the ray receiver 200.

[0015] The channel wall surrounding the radiation section 310 includes a first wear-resistant layer 311, a supporting interlayer 312, and a second wear-resistant layer 313 which are stacked. The first wear-resistant layer 311, the supporting interlayer 312, and the second wear-resistant layer 313 are stacked in sequence, and the first wear-resistant layer 311 can be located at the outer layer of the channel wall of the radiation section 310, that is, the first wear-resistant layer 311 is located on the side away from the space surrounded by the radiation section 310. The second wear-resistant layer 313 can be located at the inner layer of the channel wall of the radiation section 310, that is, the second wear-resistant layer 313 is located on the side where the space surrounded by the radiation section 310 is located. The supporting interlayer 312 is sandwiched between the first wear-resistant layer 311 and the second wear-resistant layer 313.

[0016] The transmission capability of the first wear-resistant layer 311 and the second wear-resistant layer 313 to the detection rays is less than the transmission capability of the support interlayer 312 to the detection rays. For example, the first wear-resistant layer 311 and the second wear-resistant layer 313 may be made of carbon fiber board or epoxy resin, etc., and the support interlayer 312 may be made of honeycomb paper or foaming material (such as modified polyurethane foam), etc. The first wear-resistant layer 311 and the second wear-resistant layer 313 may have high wear resistance and hardness, thereby improving the wear resistance and hardness of the radiation section 310, and the support interlayer 312 may have high strength and rigidity, thereby improving the overall strength and rigidity of the radiation section 310.

[0017] The detection ray emitted by the ray transmitter 100 sequentially passes through the first wear-resistant layer 311, the supporting interlayer 312 and the second wear-resistant layer 313 to enter the radiation section 310 to scan the object to be detected. After scanning the object to be detected, the detection ray sequentially passes through the second wear-resistant layer 313, the supporting interlayer 312 and the first wear-resistant layer 311 to be received by the ray receiver 200. Objects to be detected of different materials have different absorption rates for the detection ray. After penetrating the object to be detected, the detection ray is received by the ray receiver 200, and the ray attenuation is recorded by the ray receiver 200, thereby forming preliminary detection information. The specific detection process and detection principle are well-known technologies and will not be repeated here.

[0018] The security inspection device disclosed in the embodiment of the present application arranges the channel wall surrounding the radiation section 310 to have a structure including a first wear-resistant layer 311, a supporting interlayer 312 and a second wear-resistant layer 313 stacked in sequence, so that the first wear-resistant layer 311 and the second wear-resistant layer 313 can improve the wear resistance and hardness of the radiation section 310, and arranges the supporting interlayer 312 between the first wear-resistant layer 311 and the second wear-resistant layer 313, so that the strength and rigidity of the radiation section 310 can be improved, and then when the object to be detected passes through the radiation section 310, the vibration amplitude of the radiation section 310 is relatively small, so that the movement stability of the object to be detected is better, and then the imaging effect of the security inspection device can be improved.

[0019] Since the smaller the structure's ability to transmit detection rays is, the greater the effect of its thickness on the ability to transmit detection rays is, the thicker the structure is, the smaller the ability to transmit detection rays is. In the embodiment of the present application, a supporting interlayer 312 with a greater ability to transmit detection rays is provided, so that a change in the thickness of the supporting interlayer 312 has a smaller effect on the ability to transmit detection rays. Therefore, the supporting interlayer 312 can be provided thicker to ensure the strength and rigidity of the radiation section 310, and the thickness of the first wear-resistant layer 311 and the second wear-resistant layer 313 can be provided relatively thin, so that the ability to transmit detection rays by the first wear-resistant layer 311 and the second wear-resistant layer 313 can be improved while ensuring wear resistance and hardness, thereby improving the ability to transmit detection rays by the radiation section 310 as a whole, thereby improving the imaging effect of the security inspection equipment.

[0020] It should be noted that the detection channel of the security inspection equipment in the related technology adopts a pure carbon fiber plate structure (equivalent to the wear-resistant layer in this application). The pure carbon fiber plate structure has a small ability to transmit detection rays. In order to improve the strength and rigidity of the detection channel, the thickness of the pure carbon fiber plate needs to be set thicker. The thickness of the pure carbon fiber plate has a greater influence on the transmission ability of the detection rays. Therefore, the thicker thickness of the pure carbon fiber plate causes the detection channel's transmission ability of the detection rays to drop sharply. The present application optimizes the radiation section 310 of the detection channel 300 so that the thickness of the first wear-resistant layer 311 and the second wear-resistant layer 313 with smaller detection ray transmission capabilities can be set relatively thin, thereby improving the detection ray transmission capabilities of the first wear-resistant layer 311 and the second wear-resistant layer 313, and a supporting interlayer 312 with larger detection ray transmission capabilities is set between the first wear-resistant layer 311 and the second wear-resistant layer 313. The thickness of the supporting interlayer 312 has little effect on the detection ray transmission capability, and the supporting interlayer 312 can be set thicker to ensure the rigidity and strength of the radiation section 310. Therefore, when the radiation section 310 in the embodiment of the present application has the same thickness as the detection channel in the related art, the radiation section 310 in the embodiment of the present application has better detection ray transmission capabilities than the detection channel in the related art, thereby improving the imaging effect of the security inspection equipment.

[0021] Specifically, in the security inspection equipment disclosed in the embodiment of the present application, the thickness of the first wear-resistant layer 311 and the second wear-resistant layer 313 can be less than or equal to 0.5 mm, and the thickness of the supporting interlayer 312 can be between 4 mm and 10 mm, or can be 4 mm or 10 mm. The thickness of the first wear-resistant layer 311, the second wear-resistant layer 313 and the supporting interlayer 312 can be controlled according to the power of the ray emitter 100, the weight of the object to be detected, etc.

[0022] Under the condition that the wear resistance and hardness of the first wear-resistant layer 311 and the second wear-resistant layer 313 are satisfied, the first wear-resistant layer 311 and the second wear-resistant layer 313 have relatively more selectivity. For example, the first wear-resistant layer 311 and the second wear-resistant layer 313 can be made of epoxy resin to form an epoxy resin layer. In order to make the first wear-resistant layer 311 and the second wear-resistant layer 313 have better wear resistance and hardness, optionally, the first wear-resistant layer 311 and the second wear-resistant layer 313 can both be carbon fiber layers. The first wear-resistant layer 311 and the second wear-resistant layer 313 can be made of carbon fiber materials to form a carbon fiber layer.

[0023] Since carbon fiber materials have high wear resistance and hardness, the security inspection equipment disclosed in the embodiment of the present application can make the first wear-resistant layer 311 and the second wear-resistant layer 313 more wear-resistant and hard by setting the first wear-resistant layer 311 and the second wear-resistant layer 313 as carbon fiber layers.

[0024] It should be noted that objects with high wear resistance generally have a relatively high hardness, so they are not easily worn out when rubbing against other objects due to their high hardness.

[0025] The supporting interlayer 312 can be implemented in a variety of ways. For example, the supporting interlayer 312 can be made of a foaming material (such as a modified polyurethane foam), which has a bubble-free structure inside and a low material density, so that it has a high transmittance to the detection rays. Of course, the supporting interlayer 312 can also be a microporous structure material, a lattice structure, etc. The embodiment of the present application does not specifically limit the implementation of the supporting interlayer 312.

[0026] In order to make the supporting interlayer 312 have good strength and rigidity, the supporting interlayer 312 may be a honeycomb paper layer. Since the honeycomb paper has the characteristics of light weight, hollow core and stable structure, the light weight is conducive to the lightweight design of the detection channel 300, the density of the honeycomb paper is relatively low and the hollow core structure has good transmission ability for the detection rays, and the honeycomb paper has a stable structure, so that the supporting interlayer 312 has good strength and rigidity.

[0027] Since the detection ray has certain harm to the human body, the area outside the radiation section 310 needs to minimize the transmission of the detection ray, so as to reduce the harm to the human body as much as possible. In order to reduce the transmission of the detection ray in the area outside the radiation section 310, optionally, the detection channel 300 can also include a shielding section 320, which can absorb and block the detection ray. In the conveying direction of the detection channel 300, at least one of the two opposite sides of the radiation section 310 is provided with a shielding section 320, and the shielding section 320 is connected to the radiation section 310. The channel wall surrounding the shielding section 320 includes a first shielding layer 314, a first wear-resistant layer 311, a supporting interlayer 312 and a second wear-resistant layer 313 arranged in a stacked manner. The first shielding layer 314 is located at the outer layer of the detection channel 300, and the first shielding layer 314 can absorb and block the detection ray.

[0028] The security inspection device disclosed in the embodiment of the present application is provided with a shielding segment 320, so that in the conveying direction of the detection channel 300, at least one of the two opposite sides of the radiation segment 310 is provided with a shielding segment 320, and the outermost layer of the shielding segment 320 is provided with a first shielding layer 314, so that when the detection rays emitted by the ray emitter 100 are projected onto the shielding segment 320, the detection rays can be absorbed and blocked by the first shielding layer 314, thereby reducing the projection of the detection rays in the area outside the radiation segment 310, and further alleviating the harm of the detection rays to the human body.

[0029] In order to improve the overall strength of the detection channel 300, optionally, the first wear-resistant layer 311, the supporting interlayer 312, and the second wear-resistant layer 313 located in the radiation section 310 are an integrated structure with the first wear-resistant layer 311, the supporting interlayer 312, and the second wear-resistant layer 313 located in the shielding section 320. Specifically, when manufacturing the detection channel 300, the first wear-resistant layer 311 of the radiation section 310 and the first wear-resistant layer 311 of the shielding section 320 can be prepared in the same process without an interface. Similarly, the supporting interlayer 312 and the second wear-resistant layer 313 of the radiation section 310 and the supporting interlayer 312 and the second wear-resistant layer 313 of the shielding section 320 can also be prepared in the same process without an interface.

[0030] The security inspection equipment disclosed in the embodiment of the present application can improve the overall strength of the detection channel 300 by configuring the first wear-resistant layer 311, the supporting interlayer 312 and the second wear-resistant layer 313 located in the radiation section 310 and the first wear-resistant layer 311, the supporting interlayer 312 and the second wear-resistant layer 313 located in the shielding section 320 as an integrated structure.

[0031] Of course, in another implementation, the shielding segment 320 and the radiating segment 310 may also be connected by bonding, threading, or riveting. The embodiment of the present application does not limit the connection method between the shielding segment 320 and the radiating segment 310.

[0032] The first shielding layer 314 may be a tungsten layer, a ceramic layer, or a polymer layer. In order to make the first shielding layer 314 have a better absorption capacity for the detection rays, the first shielding layer 314 may be a lead layer. Since lead has the properties of a high atomic number (atomic number 82682) and a high density (1111111.3 g / cm³), it has high efficiency in absorbing the detection rays, and lead is also easy to process and shape.

[0033] In order to further improve the stability of the object to be detected when passing through the detection channel 300, so as to improve the imaging effect of the security inspection equipment, the security inspection equipment may optionally further include a bottom support frame 410, which may be distributed corresponding to the shielding segment 320, that is, the bottom support frame 410 is arranged at the position corresponding to the shielding segment 320, and the bottom support frame 410 is not arranged in the area outside the shielding segment 320 (such as the position corresponding to the radiation segment 310). The shielding bottom 321 of the shielding segment 320 is supported on the corresponding bottom support frame 410.

[0034] It should be noted that when shielding segments 320 are provided on opposite sides of the radiating segment 310, bottom support frames 410 are respectively provided at positions corresponding to the shielding segments 320 on opposite sides of the radiating segment 310, and the bottom support frames 410 do not extend to the area corresponding to the radiating segment 310.

[0035] The security inspection device disclosed in the embodiment of the present application is provided with a bottom support frame 410, so that the shielding bottom 321 of the shielding section 320 is supported on the corresponding bottom support frame 410, thereby improving the stability of the detection channel 300, and further improving the stability of the object to be detected when passing through the detection channel 300, thereby improving the imaging effect of the security inspection device. Moreover, the bottom support frame 410 is only distributed at the position corresponding to the shielding section 320, thereby avoiding the bottom support frame 410 being provided at the position corresponding to the radiation section 310, thereby avoiding reducing the transmission capability of the detection ray at the position corresponding to the radiation section 310.

[0036] The bottom support frame 410 may be a flat support structure, so that the structure of the bottom support frame 410 is relatively simple. In order to improve the stability of the shielding section 320 supported on the bottom support frame 410, the bottom support frame 410 may be a slot-shaped structure, and the two ends of the bottom support frame 410 may be open in the conveying direction. The shielding bottom 321 may include a bottom body 321a and a flange 321b, and the two opposite sides of the bottom body 321a may be provided with flanges 321b, and the bottom body 321a may be supported on the bottom wall of the bottom support frame 410, and the flanges 321b located on the opposite sides of the bottom body 321a may be opposite to the corresponding side walls of the bottom support frame 410, that is, the shielding bottom 321 is located in the slot of the bottom support frame 410, and the two flanges 321b are respectively opposite to the two side walls of the bottom support frame 410.

[0037] The security inspection device may further include a connector 330 and a transition connecting frame 340. The transition connecting frame 340 may be a Z-shaped structure. Of course, the transition connecting frame 340 may also be other structures. The embodiment of the present application does not specifically limit the structure of the transition connecting frame 340. The flange 321b may be connected to the first end of the transition connecting frame 340 through the connector 330, the second end of the transition connecting frame 340 may be connected to the corresponding side wall of the bottom support frame 410 through the connector 330, and the bottom body 321a may be connected to the bottom wall of the bottom support frame 410 through the connector 330. The connector 330 may be a rivet, a screw, a buckle or other structures. The embodiment of the present application does not limit the structure of the connector 330.

[0038] The security inspection device disclosed in the embodiment of the present application is configured to have a bottom support frame 410 as a groove-shaped structure, and the shielding bottom 321 is configured to include a bottom body 321a and a flange 321b, and the two opposite sides of the bottom body 321a are provided with a flange 321b structure, so that the shielding bottom 321 is located in the groove of the bottom support frame 410, and the bottom body 321a of the shielding bottom 321 is supported on the bottom wall of the bottom support frame 410, thereby facilitating the stability of the support of the shielding section 320. The flange 321b is connected to the first end of the transition connection frame 340 through the connecting member 330, and the second end of the transition connection frame 340 is connected to the corresponding side wall of the bottom support frame 410 through the connecting member 330, so that the flange 321b is more stably connected to the side wall of the bottom support frame 410, and the bottom body 321a is connected to the bottom wall of the bottom support frame 410 through the connecting member 330, so that the bottom body 321a is more stably connected to the bottom wall of the bottom support frame 410. By connecting the shielding bottom 321 at both the side wall and the bottom wall of the bottom support frame 410 , the installation of the shielding section 320 is made more stable, thereby making the installation of the detection channel 300 more stable.

[0039] Optionally, the security inspection device may further include a support plate 350, and the support plate 350 may be distributed corresponding to the shielding section 320, that is, the support plate 350 is only provided at a position corresponding to the shielding section 320, and the support plate 350 does not extend to a position corresponding to the radiation section 310. The support plate 350 may include a stacked base layer 351 and a second shielding layer 352, the base layer 351 may be supported on the flange 321b by a transition connection frame 340, and the second shielding layer 352 may be used to support the object to be detected.

[0040] The security inspection device disclosed in the embodiment of the present application is provided with a support plate 350, and the support plate 350 is provided to include a stacked base layer 351 and a second shielding layer 352, so that the second shielding layer 352 can further improve the ability to absorb and block the detection rays at the position of the shielding section 320, and the base layer 351 can provide a foundation for the second shielding layer 352. The base layer 351 is supported on the flange 321b through the transition connecting frame 340, so that the base layer 351 can avoid direct contact with the flange 321b to generate greater friction, and the provision of the support plate 350 can also provide better support for the object to be detected.

[0041] Optionally, the security inspection device may further include a top support frame 420, which may be distributed corresponding to the shielding section 320, that is, the top support frame 420 is provided at the position corresponding to the shielding section 320, and the top support frame 420 part extends to the radiation section 310. In the case where the shielding sections 320 are provided on both opposite sides of the radiation section 310, the top support frames 420 are respectively provided at the corresponding positions of the shielding sections 320 on both sides. The top support frame 420 may include a crossbeam 421 and a vertical beam 422, and the two ends of the crossbeam 421 may be respectively connected with the vertical beam 422, the first end of the vertical beam 422 may be connected to the crossbeam 421, and the second ends of the two vertical beams 422 located at the two ends of the crossbeam 421 may be connected to the two side walls of the bottom support frame 410, the shielding side 322 of the shielding section 320 may be connected to the vertical beam 422, and the shielding top 323 of the shielding section 320 may be connected to the crossbeam 421. Specifically, the shielding side portion 322 of the shielding segment 320 may be connected to the vertical beam 422 through the connecting member 330 , and the shielding top portion 323 of the shielding segment 320 may be connected to the horizontal beam 421 through the connecting member 330 .

[0042] The security inspection equipment disclosed in the embodiment of the present application is provided with a top support frame 420, and the top support frame 420 is provided with a structure including a horizontal beam 421 and a vertical beam 422, so that the first end of the vertical beam 422 is connected to the horizontal beam 421, and the second ends of the two vertical beams 422 located at the two ends of the horizontal beam 421 are respectively connected to the two side walls of the bottom support frame 410, so that the top support frame 420 and the bottom support frame 410 form an integral structure, so that the shielding side 322 of the shielding segment 320 can be connected to the vertical beam 422, and the shielding top 323 of the shielding segment 320 can be connected to the horizontal beam 421, so that the setting of the shielding side 322 and the shielding top 323 is more stable, and the shielding bottom 321, the shielding side 322 and the shielding top 323 can also be provided as a split structure, and the shielding segment 320 is surrounded by the fixing of the top support frame 420 and the bottom support frame 410, which is beneficial to the manufacture of the shielding segment 320. Moreover, the top support frame 420 can also strengthen the detection channel 300, thereby protecting the detection channel 300.

[0043] In order to further strengthen the strength of the detection channel 300, optionally, in the conveying direction, the two ends of the shielding section 320 may be respectively provided with a top support frame 420, and the security inspection device may further include a connecting beam 430. The connecting beam 430 may include a first connecting plate 431 and a second connecting plate 432, and the first connecting plate 431 and the second connecting plate 432 may both extend along the conveying direction. The side wall of the first connecting plate 431 extending along the conveying direction may be connected to the side wall of the second connecting plate 432 extending along the conveying direction, and the extension plane of the first connecting plate 431 is perpendicular to the extension plane of the second connecting plate 432, that is, the first connecting plate 431 and the second connecting plate 432 form an L-shaped structure.

[0044] The first connecting plate 431 may be located on a side of the shielding side 322 away from the vertical beam 422, the second connecting plate 432 may be located on a side of the shielding top 323 away from the horizontal beam 421, the first end of the first connecting plate 431 may be connected to the vertical beam 422 located at the first end of the shielding segment 320 via a connecting member 330, the second end of the first connecting plate 431 may be connected to the vertical beam 422 located at the second end of the shielding segment 320 via a connecting member 330, the first end of the second connecting plate 432 may be connected to the horizontal beam 423 located at the first end of the shielding segment 320 via a connecting member 330, and the second end of the second connecting plate 432 may be connected to the horizontal beam 423 located at the second end of the shielding segment 320 via a connecting member 330.

[0045] The security inspection device disclosed in the embodiment of the present application is provided with a connecting beam 430, so that the connecting beam 430 is provided to include a first connecting plate 431 and a second connecting plate 432, and the side wall of the first connecting plate 431 extending in the conveying direction is connected to the side wall of the second connecting plate 432 extending in the conveying direction, and the extension plane of the first connecting plate 431 is perpendicular to the extension plane of the second connecting plate 432, so that the first end of the first connecting plate 431 can be connected to the vertical beam 422 located at the first end of the shielding section 320 through the connecting member 330, and the first connecting plate 431 can be connected to the vertical beam 422 located at the first end of the shielding section 320 through the connecting member 330. The second end of the second connecting plate 432 can be connected to the vertical beam 422 located at the second end of the shielding segment 320 through the connecting piece 330, the first end of the second connecting plate 432 can be connected to the horizontal beam 423 located at the first end of the shielding segment 320 through the connecting piece 330, and the second end of the second connecting plate 432 can be connected to the horizontal beam 423 located at the second end of the shielding segment 320 through the connecting piece 330, so that the top support frames 420 at both ends of the shielding segment 320 can be connected through the connecting beam 430, which is beneficial to strengthen the strength of the detection channel 300.

[0046] In an embodiment of further strengthening the strength of the detection channel 300, the security inspection device may further include an annular support frame 510 and a reinforcing rib 520. An annular support frame 510 may be respectively provided at the two ports of the radiation section 310, and the annular support frame 510 may be connected to the bottom support frame 410 or the top support frame 420 through the reinforcing rib 520. There may be multiple reinforcing ribs 520, some of which may be connected between the annular support frame 510 and the bottom support frame 410, and another part of the reinforcing ribs 520 may be connected between the annular support frame 510 and the top support frame 420.

[0047] The security inspection equipment disclosed in the embodiment of the present application is provided with an annular support frame 510 and a reinforcing rib 520, so that the annular support frame 510 is sleeved at the positions of the two ports of the radiation section 310, and the annular support frame 510 can be connected to the bottom support frame 410 or the top support frame 420 through the reinforcing rib 520, so that the annular support frame 510 and the reinforcing rib 520 can further strengthen the strength of the detection channel 300.

[0048] In order to further reduce the transmission of the detection rays in the area outside the radiation section 310, optionally, the space enclosed between the inner wall of the annular support frame 510 and the outer wall of the radiation section 310 can be filled with a shielding baffle 530. The shielding baffle 530 can absorb and block the detection rays, so that the detection rays projected to the area outside the radiation section 310 can be absorbed and blocked by the shielding baffle 530, thereby further reducing the transmission of the detection rays in the area outside the radiation section 310.

[0049] Optionally, the security inspection device may further include a first transmission channel 610, a second transmission channel 620, and a conveying device 630. The first transmission channel 610 and the second transmission channel 620 may be respectively disposed at both ends of the detection channel 300, and both are connected to the detection channel 300. The conveying device 630 may be used to convey the object to be detected to sequentially pass through the first transmission channel 610, the detection channel 300, and the second transmission channel 620, and output it from the second transmission channel 620 to the outside of the security inspection device.

[0050] The security inspection equipment disclosed in the embodiment of the present application is provided with a first transmission channel 610, a second transmission channel 620 and a conveying device 630, so that when a person places an object to be inspected, the object to be inspected can be placed on the conveying device 630, and driven by the conveying device 630, it passes through the first transmission channel 610, the detection channel 300 and the second transmission channel 620 in sequence, so that the person does not have to be too close to the detection channel 300, which is beneficial to the protection of the person.

[0051] Specifically, the conveying device 630 can be a conveyor belt assembly, and the two rotating shafts of the transmission belt assembly can be rotatably arranged at two opposite ports of the first transmission channel 610 and the second transmission channel 620 respectively. The transmission belt of the transmission belt assembly can be sleeved on the two rotating shafts, and one side of the transmission belt can pass through the detection channel 300, and the other side can be located below the detection channel 300. The power device of the transmission belt assembly rotates by driving the rotating shaft so that the transmission belt drives the object to be detected placed above the transmission belt to pass through the first transmission channel 610, the detection channel 300 and the second transmission channel 620 in sequence.

[0052] Of course, the conveying device 630 may also be a transmission chain assembly or other transmission assembly, and the embodiment of the present application does not limit the specific type of the conveying device 630.

[0053] In order to conduct a comprehensive inspection of the object to be inspected, it is necessary to make the ray emitter 100 and the ray receiver 200 move around the inspection channel 300. In order to make the ray emitter 100 and the ray receiver 200 move around the inspection channel 300, optionally, the security inspection device may further include a rotating bracket 700 and a driving mechanism 800, and the rotating bracket 700 may be rotatably arranged on the gantry 950. The driving mechanism 800 may be connected to the rotating bracket 700, and the rotating bracket 700 may be rotatably arranged on the inspection channel 300. The ray emitter 100 and the ray receiver 200 may both be arranged on the rotating bracket 700. The driving mechanism 800 may be used to drive the rotating bracket 700 to drive the ray emitter 100 and the ray receiver 200 to rotate around the inspection channel 300, so that the ray emitter 100 and the ray receiver 200 can be moved around the inspection channel 300, and then the object to be inspected may be comprehensively inspected.

[0054] Optionally, the security inspection device may further include a control device 910 and a cooling device 920. Both the control device 910 and the cooling device 920 may be disposed on the rotating bracket 700, and both the control device 910 and the cooling device 920 may be connected to the ray emitter 100 and the ray receiver 200. The control device 910 may be used to control the output power of the ray emitter 100 and the ray receiver 200, so that the security inspection device may meet the detection requirements of different objects to be detected. The cooling device 920 may be used to cool the ray emitter 100 and the ray receiver 200, so as to prevent the ray emitter 100 and the ray receiver 200 from overheating during operation.

[0055] Specifically, the security inspection device may further include a frame 930 and a base 940, and the detection channel 300 may be supported on the base 940 by the frame 930, so that the installation of the detection channel 300 is more stable. In the case where the security inspection device includes a bottom support frame 410, the detection channel 300 may be supported on the bottom support frame 410, and the bottom support frame 410 may be supported on the base 940 by the frame 930.

[0056] The above embodiments of the present invention focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0057] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A security inspection device, characterized in that: The invention comprises a ray transmitter (100), a ray receiver (200) and a detection channel (300), wherein the detection channel (300) comprises a radiation section (310), and the ray transmitter (100) and the ray receiver (200) are respectively located on two opposite sides of the radiation section (310); The channel wall surrounding the radiation section (310) comprises a first wear-resistant layer (311), a supporting interlayer (312) and a second wear-resistant layer (313) which are stacked; the detection ray emitted by the ray emitter (100) sequentially passes through the first wear-resistant layer (311), the supporting interlayer (312) and the second wear-resistant layer (313) to enter the radiation section (310) to scan the object to be detected; the detection ray after scanning the object to be detected sequentially passes through the second wear-resistant layer (313), the supporting interlayer (312) and the first wear-resistant layer (311) to be received by the ray receiver (200); wherein the transmission capability of the first wear-resistant layer (311) and the second wear-resistant layer (313) to the detection ray is smaller than the transmission capability of the supporting interlayer (312) to the detection ray.

2. The security inspection equipment according to claim 1, characterized in that: The first wear-resistant layer (311) and the second wear-resistant layer (313) are both carbon fiber layers.

3. The security inspection equipment according to claim 1, characterized in that: The supporting interlayer (312) is a honeycomb paper layer.

4. The security inspection device according to any one of claims 1 to 3, characterized in that: The detection channel (300) further comprises a shielding section (320); in the conveying direction of the detection channel (300), at least one of the two opposite sides of the radiation section (310) is provided with the shielding section (320), and the shielding section (320) is connected to the radiation section (310); a channel wall surrounding the shielding section (320) comprises a first shielding layer (314), the first wear-resistant layer (311), the supporting interlayer (312), and the second wear-resistant layer (313) which are stacked; the first shielding layer (314) is located on the outer layer of the detection channel (300).

5. The security inspection equipment according to claim 4, characterized in that: The first wear-resistant layer (311), the supporting interlayer (312), and the second wear-resistant layer (313) located in the radiation section (310) are an integrated structure with the first wear-resistant layer (311), the supporting interlayer (312), and the second wear-resistant layer (313) located in the shielding section (320).

6. The security inspection equipment according to claim 4, characterized in that: The first shielding layer (314) is a lead layer.

7. The security inspection equipment according to claim 4, characterized in that: The security inspection device further comprises a bottom support frame (410), wherein the bottom support frame (410) is distributed corresponding to the shielding segment (320), and the shielding bottom (321) of the shielding segment (320) is supported on the corresponding bottom support frame (410).

8. The security inspection equipment according to claim 7, characterized in that: The bottom support frame (410) is a groove-shaped structure, and in the conveying direction, two ends of the bottom support frame (410) are open; The shielding bottom (321) comprises a bottom body (321a) and a flange (321b), the flanges (321b) being provided on opposite sides of the bottom body (321a), the bottom body (321a) being supported on the bottom wall of the bottom support frame (410), the flanges (321b) being located on opposite sides of the bottom body (321a) being opposite to the corresponding side walls of the bottom support frame (410), the security inspection equipment further comprising a connecting piece (330) and a transition connecting frame (340), the flange (321b) being connected to a first end of the transition connecting frame (340) through the connecting piece (330), the second end of the transition connecting frame (340) being connected to a corresponding side wall of the bottom support frame (410) through the connecting piece (330), and the bottom body (321a) being connected to the bottom wall of the bottom support frame (410) through the connecting piece (330).

9. The security inspection device according to claim 8, characterized in that: The security inspection device further comprises a support plate (350), the support plate (350) being distributed corresponding to the shielding section (320), the support plate (350) comprising a base layer (351) and a second shielding layer (352) which are stacked, the base layer (351) being supported on the flange (321b) via the transition connection frame (340), and the second shielding layer (352) being used to support the object to be inspected.

10. The security inspection equipment according to claim 8, characterized in that: The security inspection device further comprises a top support frame (420), wherein the top support frame (420) is distributed correspondingly to the shielding section (320), the top support frame (420) comprises a cross beam (421) and a vertical beam (422), both ends of the cross beam (421) are respectively connected to the vertical beams (422), a first end of the vertical beam (422) is connected to the cross beam (421), second ends of the two vertical beams (422) located at both ends of the cross beam (421) are correspondingly connected to two side walls of the bottom support frame (410), the shielding side portion (322) of the shielding section (320) is connected to the vertical beam (422), and the shielding top portion (323) of the shielding section (320) is connected to the cross beam (421).

11. The security inspection device according to claim 10, characterized in that: In the conveying direction, the two ends of the shielding section (320) are respectively and correspondingly provided with the top support frame (420), the security inspection device further comprises a connecting beam (430), the connecting beam (430) comprises a first connecting plate (431) and a second connecting plate (432), the first connecting plate (431) and the second connecting plate (432) both extend along the conveying direction, the side wall of the first connecting plate (431) extending along the conveying direction is connected to the side wall of the second connecting plate (432) extending along the conveying direction, and the extension plane of the first connecting plate (431) is perpendicular to the extension plane of the second connecting plate (432); The first connecting plate (431) is located on a side of the shielding side portion (322) away from the vertical beam (422), the second connecting plate (432) is located on a side of the shielding top portion (323) away from the horizontal beam (421), the first end of the first connecting plate (431) is connected to the vertical beam (422) located at the first end of the shielding segment (320) through the connecting member (330), the second end of the first connecting plate (431) is connected to the vertical beam (422) located at the second end of the shielding segment (320) through the connecting member (330), the first end of the second connecting plate (432) is connected to the horizontal beam (423) located at the first end of the shielding segment (320) through the connecting member (330), and the second end of the second connecting plate (432) is connected to the horizontal beam (423) located at the second end of the shielding segment (320) through the connecting member (330).

12. The security inspection device according to claim 10, characterized in that: The security inspection device further comprises an annular support frame (510) and a reinforcing rib (520); the annular support frame (510) is respectively sleeved at two ports of the radiation section (310); and the annular support frame (510) is connected to the bottom support frame (410) or the top support frame (420) via the reinforcing rib (520).

13. The security inspection device according to claim 12, characterized in that: The space enclosed between the inner wall of the annular support frame (510) and the outer wall of the radiation section (310) is filled with a shielding retaining wall (530).

14. The security inspection device according to claim 1, characterized in that: The security inspection equipment further comprises a first transmission channel (610), a second transmission channel (620) and a conveying device (630); the first transmission channel (610) and the second transmission channel (620) are respectively arranged at two ends of the detection channel (300) and are both connected to the detection channel (300); the conveying device (630) is used to convey the object to be detected to pass through the first transmission channel (610), the detection channel (300) and the second transmission channel (620) in sequence.

15. The security inspection device according to claim 1, characterized in that: The security inspection device further comprises a rotating bracket (700) and a driving mechanism (800), wherein the driving mechanism (800) is connected to the rotating bracket (700), the rotating bracket (700) is rotatably sleeved on the detection channel (300), the ray emitter (100) and the ray receiver (200) are both arranged on the rotating bracket (700), and the driving mechanism (800) is used to drive the rotating bracket (700) to drive the ray emitter (100) and the ray receiver (200) to rotate around the detection channel (300).

16. The security inspection device according to claim 15, characterized in that: The security inspection equipment further comprises a control device (910) and a cooling device (920); the control device (910) and the cooling device (920) are both arranged on the rotating bracket (700); the control device (910) and the cooling device (920) are both connected to the ray transmitter (100) and the ray receiver (200); the control device (910) is used to control the output power of the ray transmitter (100) and the ray receiver (200); and the cooling device (920) is used to cool the ray transmitter (100) and the ray receiver (200).

17. The security inspection device according to claim 1, characterized in that: The security inspection device further comprises a frame (930) and a base (940), and the inspection channel (300) is supported on the base (940) via the frame (930).

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