Security inspection equipment

Abstract

This utility model discloses a security inspection device, which includes a conveying body, a transmission channel housing, a detection channel housing, and a detection device. The transmission channel housing includes a main housing and a maintenance housing, with the maintenance housing detachably connected between the main housing and the detection channel housing. The main housing, the maintenance housing, and the detection channel housing are all connected to the conveying body to form a conveying space. The detection device includes a scanning module located within the detection channel housing, used to scan the items to be inspected conveyed by the conveying body into the detection channel housing. This solution addresses the problem of low maintenance efficiency in related security inspection devices.

Description

Technical Field

[0001] This utility model relates to the field of security technology, and in particular to a security inspection device. Background Technology

[0002] Existing security inspection equipment typically includes a transmission channel housing, a detection channel housing, a conveyor body, and a detection device. Driven by the conveyor body (such as a conveyor belt assembly), the item being inspected passes sequentially through the space enclosed by the transmission channel housing and the detection channel housing. After entering the detection channel housing, the detection device inspects the item.

[0003] The detection device includes an X-ray source and a detector, which are core functional modules housed within the detection channel housing for high-precision imaging of the inspected object. However, in actual use, key components of the detection device (such as the scanning module) are prone to aging and malfunction, and the detection device also requires periodic calibration. Therefore, the detection device must be inspected, replaced, or maintained.

[0004] Since the testing device is located inside the testing channel housing, when it needs to be inspected, replaced or maintained, maintenance personnel need to crawl into the testing channel housing from the transmission channel housing to carry out the relevant work. Because the transmission channel housing is narrow and the channel is long, it is difficult to carry out inspection, replacement or maintenance work on the testing device, resulting in low efficiency in the inspection, replacement or maintenance of the testing device. Utility Model Content

[0005] This utility model discloses a security inspection device to solve the problem of low maintenance efficiency in related security inspection devices.

[0006] To solve the above-mentioned technical problems, this utility model is implemented as follows: This application discloses a security inspection device, which includes a conveying body, a transmission channel housing, a detection channel housing, and a detection device. The transmission channel housing includes a main housing and a maintenance housing. The maintenance housing is detachably connected between the main housing and the detection channel housing. The main housing, the maintenance housing, and the detection channel housing are all connected to the conveying body to form a conveying space. The detection device includes a scanning module, which is disposed inside the detection channel housing and is used to scan the object to be inspected conveyed by the conveying body to the detection channel housing.

[0007] The technical solution adopted in this utility model can achieve the following technical effects: The security inspection equipment disclosed in this application sets the transmission channel housing as a structure including a main housing and a maintenance housing, and the maintenance housing is detachably connected between the main housing and the detection channel housing. The maintenance housing is also detachably connected to the conveying body. This allows the maintenance personnel to directly bend down and enter the detection channel housing when it is necessary to inspect, replace or maintain components such as the scanning module located in the detection channel housing. This eliminates the need to crawl into the transmission channel housing, thereby reducing the difficulty of operation for maintenance personnel and improving the efficiency of inspection, replacement or maintenance of the detection device. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the overall structure of the security inspection equipment disclosed in the embodiments of this utility model; Figures 2 to 4 This is a partially enlarged schematic diagram of the security inspection equipment disclosed in the embodiments of this utility model; Figure 5 This is a schematic diagram of the security inspection equipment disclosed in this embodiment of the present invention after the inspection housing has been disassembled; Figure 6 This is a schematic diagram of the top plate structure disclosed in an embodiment of the present utility model; Figure 7 This is a schematic diagram of the side plate structure disclosed in an embodiment of the present utility model; Figure 8 This is a schematic diagram of the shielding layer and the base layer disclosed in the embodiments of this utility model.

[0009] Explanation of reference numerals in the attached figures: 100-Conveying body, 200 - Transmission channel housing, 201 - Base layer, 202 - Shielding layer, 202a - First shielding section, 202b - Second shielding section 210 - Main shell, 211 - First mounting frame, 211a - First end face, 220 - Maintenance shell, 221 - Top plate, 221a - Top plate body, 221b - First side wall, 221c - First flange structure, 222 - Side plate, 222a - Side plate body, 222b - Second side wall, 222c - Second flange structure, 222d - Third side wall 300 - Detection channel housing, 310 - Second mounting frame, 400 - Shielding component, 410 - Annular main body, 420 - Shielding baffle 500-Output Channel Housing 600 - Connection Components. Detailed Implementation

[0010] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0011] The technical solutions disclosed in the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0012] Please refer to Figures 1 to 8 This utility model discloses a security inspection device, which includes a conveying body 100, a transmission channel housing 200, a detection channel housing 300, and a detection device.

[0013] The conveying body 100 is a component of the security inspection equipment used to convey the items to be inspected. The conveying body 100 may include a main support, a conveyor belt and a conveyor belt drive. The conveyor belt may be mounted on the main support, and the conveyor belt drive can drive the conveyor belt to move along the conveying direction.

[0014] Please refer to Figure 1 The transmission channel housing 200 includes a main housing 210 and a maintenance housing 220. The maintenance housing 220 is detachably connected between the main housing 210 and the detection channel housing 300, meaning that the maintenance housing 220 can be detached from both the main housing 210 and the detection channel housing 300, thus forming at least one opening on the maintenance housing 220 to allow maintenance personnel to directly bend down and reach into the detection channel housing 300 to perform equipment maintenance. The main housing 210, the maintenance housing 220, and the detection channel housing 300 are all connected to the conveying body 100 to form a conveying space. The component to be tested can be transported by the conveying body 100 within the conveying space. During the transport, the component to be tested can pass through the transmission channel housing 200 and the detection channel housing 300 in sequence. Of course, the component to be tested can also pass through the detection channel housing 300 and the transmission channel housing 200 in sequence during the transport. The embodiments of this application do not impose specific restrictions on the transport direction of the component to be tested.

[0015] In an optional embodiment, the inspection housing 220 is detachably connected to the conveying body 100, meaning the inspection housing 220 can be detached from the conveying body 100. The detection device includes a scanning module disposed within the detection channel housing 300. For example, the scanning module includes an X-ray source and a detector, and is used to scan the workpiece to be inspected conveyed by the conveying body 100 to the detection channel housing 300.

[0016] In one optional implementation, the scanning module may include a spiral CT scanning module. The spiral CT scanning module may include components such as an X-ray source, a detector, a drive mechanism, and a control box. The X-ray source is rotatably disposed within the detection channel housing 300. A conveyor belt can pass through the hollow area enclosed by the X-ray source. The drive mechanism can drive the X-ray source to rotate around its central axis. The X-ray source generates an X-ray beam that penetrates the object being inspected. The detector collects projection data after attenuation by the object being inspected. The control box is coupled to the X-ray source and the detector, and is used to control the rotation of the X-ray source around the object being inspected, as well as to receive scanning parameters input by the operator (such as tube voltage kV, tube current mA, rotation speed, pitch, slice thickness, scanning range, etc.) and distribute them to each subsystem for execution. Of course, the scanning module can also have other structures; this application does not specifically limit the structure of the scanning module. It should be noted that the structure and working principle of the scanning module in this application embodiment are well-known technologies and will not be described in detail here.

[0017] The security inspection equipment disclosed in this application configures the transmission channel housing 200 as including a main housing 210 and a maintenance housing 220. The maintenance housing 220 is detachably connected between the main housing 210 and the detection channel housing 300, and is detachably connected to the conveying body 100. This allows the maintenance personnel to directly bend down and enter the detection channel housing 300 when it is necessary to inspect, replace, or maintain components such as the scanning module located in the detection channel housing 300. This eliminates the need for personnel to crawl into the transmission channel housing 200, thereby reducing the difficulty of operation for maintenance personnel and improving the efficiency of inspection, replacement, or maintenance of the detection device.

[0018] In one alternative embodiment, the access housing 220 may be a one-piece structure, for example, the access housing 220 may be a one-piece U-shaped housing.

[0019] In one alternative embodiment, the maintenance housing 220 includes a top plate 221 and two side plates 222 connected to opposite ends of the top plate 221. At least one of the two side plates 222 is detachably connected to the top plate 221, and at least one of the two side plates 222 and the top plate 221 are respectively detachably connected between the main housing 210 and the detection channel housing 300.

[0020] In another embodiment, the inspection housing 220 may include a top plate 221 and two side plates 222 detachably connected to opposite ends of the top plate 221. The top plate 221 and the two side plates 222 are detachably connected between the main housing 210 and the detection channel housing 300. Further optionally, the end of the side plate 222 facing away from the top plate 221 may be detachably connected to the conveying body 100. The top plate 221 and the two side plates 222 may form a U-shaped housing.

[0021] The solution provided in this application embodiment allows for at least one opening to be formed in the inspection housing 220, enabling maintenance personnel to directly bend down and enter the inspection channel housing for equipment maintenance. For example, when inspecting, replacing, or maintaining components such as the scanning module located within the inspection channel housing 300, one of the top plate 221 or the two side plates 222 can be disassembled first. If the inspection, replacement, or maintenance task can be completed, there is no need to disassemble other plates, thereby further improving the efficiency of inspecting, replacing, or maintaining security inspection equipment.

[0022] To improve the overall strength of the transmission channel housing 200 and the detection channel housing 300, optionally, a first mounting frame 211 may be provided at the end of the main housing 210 connected to the maintenance housing 220, and the first mounting frame 211 may be connected to the conveying body 100. A second mounting frame 310 may be provided at the end of the detection channel housing 300 connected to the maintenance housing 220. The second mounting frame 310 may be connected to the conveying body 100. The maintenance housing 220 is detachably connected between the first mounting frame 211 and the second mounting frame 310. The first mounting frame 211 and the second mounting frame 310 may be U-shaped structures, and the cross-sectional shape of the first mounting frame 211 and the second mounting frame 310 may be T-shaped or U-shaped, etc. The embodiments of this application do not impose specific limitations on the shape of the first mounting frame 211 and the second mounting frame 310 or the shape of their cross-sections.

[0023] The security inspection equipment disclosed in this application provides a first mounting frame 211 at the end of the main housing 210 connected to the maintenance housing 220, and a second mounting frame 310 at the end of the detection channel housing 300 connected to the maintenance housing 220. This allows the first mounting frame 211 to provide support and reinforcement for the transmission channel housing, and the second mounting frame 310 to provide support and reinforcement for the detection channel housing 300, thereby improving the overall strength of the transmission channel housing 200 and the detection channel housing 300.

[0024] Specifically, the top plate 221 can be a planar structure as a whole, and the edge of the top plate 221 can overlap with the first mounting frame 211 and the second mounting frame 310. The top plate 221 can be detachably connected to the first mounting frame 211 and the second mounting frame 310 by means of adhesive, bolt connection, snap connection, etc.

[0025] In another embodiment, the top plate 221 may include a top plate body 221a, two first sidewalls 221b located at opposite ends of the top plate body 221a, and two first flange structures 221c connected to the two first sidewalls 221b respectively. The first mounting frame 211 may have a first end face 211a opposite to the second mounting frame 310, and the second mounting frame 310 may have a second end face opposite to the first mounting frame 211. The two first sidewalls 221b located at opposite ends of the top plate body 221a may respectively abut against the top of the first end face 211a and the top of the second end face. The two first flange structures 221c may respectively overlap the outer walls of the corresponding first mounting frames 211 and second mounting frames 310, and are detachably connected to the corresponding first mounting frames 211 and second mounting frames 310 respectively.

[0026] The security inspection equipment disclosed in this application configures the top plate 221 as including a top plate body 221a, two first sidewalls 221b located at two opposite ends of the top plate body 221a, and two first flange structures 221c connected to the two first sidewalls 221b respectively. This allows the two first sidewalls 221b located at the two opposite ends of the top plate body 221a to fit against the top of the first end face 211a of the first mounting frame 211 and the top of the second end face of the second mounting frame 310 respectively when the inspection housing 220 is installed. This makes the installation position of the top plate 221 more accurate under the limiting effect of the first end face 211a and the second end face. The two first flange structures 221c are respectively overlapped on the outer wall of the first mounting frame 211 or the second mounting frame 310 and are detachably connected to the first mounting frame 211 and the second mounting frame 310 respectively. This overlapping method not only improves the stability of the installation of the top plate 221, but also prevents the top plate 221 from falling into the conveying space during installation.

[0027] Specifically, the side plate 222 can be a planar structure as a whole, and the edge of the side plate 222 can overlap with the first mounting frame 211 and the second mounting frame 310. The side plate 222 can be detachably connected to the first mounting frame 211 and the second mounting frame 310 by means of adhesive, bolt connection, snap connection, etc.

[0028] In another embodiment, a side panel 222 may include a side panel body 222a, two second sidewalls 222b located at opposite ends of the side panel body 222a, and two second flange structures 222c connected to the second sidewalls 222b respectively. The side panel 222 refers to the side panel 222 mentioned above that is detachably connected to the main housing 210 and the detection channel housing 300. The two second sidewalls 222b located at opposite ends of the side panel body 222a can respectively abut against the sides of the first end face 211a and the second end face. The two second flange structures 222c can respectively overlap the outer walls of the corresponding first mounting frame 211 and the second mounting frame 310, and are detachably connected to the corresponding first mounting frame 211 and the second mounting frame 310 respectively.

[0029] The security inspection equipment disclosed in this application configures the side plate 222 as including a side plate body 222a, two second side walls 222b located at two opposite ends of the side plate body 222a, and two second flange structures 222c connected to the two second side walls 222b respectively. This allows the second side walls 222b located at the two opposite ends of the side plate body 222a to fit against the sides of the first end face 211a and the second end face respectively when the inspection housing 220 is installed. This makes the installation position of the side plate 222 more accurate under the limiting effect of the first end face 211a and the second end face. The two second flange structures 222c are respectively overlapped with the outer walls of the corresponding first mounting frame 211 and the second mounting frame 310, and are detachably connected to the corresponding first mounting frame 211 and the second mounting frame 310. This overlapping method not only improves the stability of the side plate 222 installation, but also prevents the side plate 222 from falling into the conveying space during installation.

[0030] In an optional embodiment, one side panel 222 may further include two third sidewalls 222d disposed at two other opposing ends of the side panel body 222a, wherein the side panel 222 refers to the side panel 222 detachably connected to the top panel body 221a mentioned above. One of the two third sidewalls 222d at the other two opposing ends of the side panel body 222a is detachably connected to the top panel body 221a. Further optionally, the two third sidewalls 222d may also be detachably connected to the conveying body 100.

[0031] The security inspection equipment disclosed in this application provides third sidewalls 222d at the other two opposite ends of the side plate body 222a. This allows the side plate 222 to have a large contact area with the top plate body 221a and the conveying body 100 respectively when it is connected to the top plate body 221a and the conveying body 100. This facilitates the connection between the side plate 222 and the top plate body 221a and the conveying body 100. For example, when the detachable connection method in this application uses bolts or screws, the third sidewalls 222d are advantageous for opening holes through which bolts or screws pass.

[0032] Optionally, the security inspection equipment may also include a connecting assembly 600, wherein at least one of the two side plates 222 is detachably connected to the top plate 221 via the connecting assembly 600, and at least one of the two side plates 222 and the top plate 221 are respectively detachably connected to the main housing 210 and the detection channel housing 300 via the connecting assembly 600.

[0033] For example, the top plate 221 and the two side plates 222 can be detachably connected to the main housing 210 and the detection channel housing 300 respectively through the connecting assembly 600, and the end of the side plate 222 facing away from the top plate 221 can be detachably connected to the conveying body 100 through the connecting assembly 600.

[0034] Specifically, the connecting component 600 may be a bolt assembly, a snap-fit ​​assembly, etc. The embodiments of this application do not impose specific restrictions on the structure of the connecting component 600.

[0035] For example, when the connecting assembly 600 is a bolt assembly, the first flange structure 221c may have a first clearance hole, and the outer walls of the first mounting frame 211 and the second mounting frame 310 may have a second clearance hole at a position opposite to the first clearance hole. The bolt of the bolt assembly can pass through the first and second clearance holes and connect to the nut of the bolt assembly, thereby achieving a detachable connection between the top plate 221 and the first mounting frame 211 and the second mounting frame 310 respectively. The second flange structure 222c may have a third clearance hole, and the outer walls of the first mounting frame 211 and the second mounting frame 310 may have a fourth clearance hole at a position opposite to the third clearance hole. The bolt of the bolt assembly can pass through the third and fourth clearance holes and connect to the nut of the bolt assembly, thereby achieving a detachable connection between the side plate 222 and the first mounting frame 211 and the second mounting frame 310 respectively. The above are just illustrative examples, and the embodiments of this application will not describe the connection relationships when the connecting assembly 600 adopts other structures one by one.

[0036] Since the detection device typically emits radiation, both the transmission channel housing 200 and the detection channel housing 300 need to have radiation shielding capabilities. For example, the walls of the transmission channel housing 200 and the detection channel housing 300 can be provided with shielding layers, and the materials of the shielding layers can be lead, tungsten, etc.

[0037] Specifically, in designing the inspection housing 220, both the top plate 221 and the side plate 222 may include a base layer 201 and a shielding layer 202 stacked on the base layer 201. The base layer 201 needs to have a certain strength; for example, the base layer 201 can be sheet metal. The shielding layer 202 can have the function of shielding detection rays; for example, the material of the shielding layer 202 can be lead, tungsten, etc. The base layer 201 and the shielding layer 202 are stacked in the thickness direction of the top plate 221 and the side plate 222, respectively.

[0038] To improve the shielding capability of the maintenance housing 220, the top plate 221 may optionally include a top plate body 221a, two first sidewalls 221b located at opposite ends of the top plate body 221a, and two first flange structures 221c connected to the two first sidewalls 221b respectively. The side plate 222 may include a side plate body 222a, two second sidewalls 222b located at opposite ends of the side plate body 222a, and two second flange structures 222c connected to the two second sidewalls 222b respectively. The shielding layer 202 may include a first shielding section 202a and a second shielding section 202b. The first shielding section 202a of the top plate 221 may be disposed on the top plate body 221a and the first sidewalls 221b, and the second shielding section 202b of the top plate 221 may be disposed on the first sidewalls 221b and the first flange structures 221c. The first shielding section 202a of the side plate 222 can be arranged in the side plate body 222a and the second side wall 222b, and the second shielding section 202b of the side plate 222 can be arranged in the second side wall 222b and the second flange structure 222c.

[0039] Please refer to Figure 5 The first shielding section 202a and the second shielding section 202b of the top plate 221 have an overlapping area at the first side wall 221b, and the first shielding section 202a and the second shielding section 202b of the side plate 222 have an overlapping area at the second side wall 222b. This provides good shielding at the connection between the top plate 221 and the main housing 210, and at the connection between the top plate 221 and the detection channel housing 300, as well as at the connection between the side plate 222 and the main housing 210, and at the connection between the side plate 222 and the detection channel housing 300.

[0040] It should be noted that the shielding layer 202 can be located on the side of the base layer 201 facing the conveying space. Of course, the shielding layer 202 can also be located on the side of the base layer 201 away from the conveying space. This application embodiment does not impose specific restrictions on this.

[0041] Optionally, to improve the radiation shielding capability of the security inspection equipment, the security inspection equipment may further include a shielding component 400. The shielding component 400 may include an annular main body 410 and a shielding baffle 420. The annular main body 410 is fitted at both ends of the detection channel housing 300 in the conveying direction. The shielding baffle 420 is provided in the area between the annular main body 410 and the outer wall of the detection channel housing 300. The shielding baffle 420 can fill the entire area between the annular main body 410 and the outer wall of the detection channel housing 300. The shielding baffle 420 does not extend into the detection channel housing 300.

[0042] The security inspection equipment disclosed in this application provides a shielding component 400, which is configured to include an annular main body 410 and a shielding baffle 420. The annular main body 410 is fitted at both ends of the detection channel housing 300, and the shielding baffle 420 is provided in the area between the annular main body 410 and the outer wall of the detection channel housing 300. The shielding baffle 420 can block radiation dispersion, thereby further improving the radiation shielding capability of the security inspection equipment.

[0043] In cases where the detection channel housing 300 is relatively long, in order to facilitate the maintenance of the security inspection equipment, a transmission channel housing 200 can be provided on both sides of the detection channel housing 300, that is, a maintenance housing 220 can be provided on both sides of the detection channel housing 300. This allows the maintenance housing 220 at the corresponding position to be disassembled according to the actual situation, thereby facilitating the maintenance of the security inspection equipment.

[0044] Optionally, an output channel housing 500 can be connected to the side of the detection channel housing 300 that is away from the transmission channel housing 200. The output channel housing 500 can be connected to the conveying body 100 and is an integral structure.

[0045] The security inspection equipment disclosed in this application makes the structure of the output channel housing 500 relatively simple by setting the output channel housing 500 as an integral structure.

[0046] It should be noted that the detachable connection between the components disclosed in this application embodiment can be made by connecting components 600 such as bolts, screws, and clips. This application embodiment does not impose specific restrictions on the detachable connection method between the components.

[0047] The above embodiments of this utility model mainly describe 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. For the sake of brevity, they will not be described in detail here.

[0048] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. A security inspection device, characterized in that, The device includes a conveying body (100), a transmission channel housing (200), a detection channel housing (300), and a detection device. The transmission channel housing (200) includes a main housing (210) and a maintenance housing (220). The maintenance housing (220) is detachably connected between the main housing (210) and the detection channel housing (300). The main housing (210), the maintenance housing (220), and the detection channel housing (300) are all connected to the conveying body (100) to form a conveying space. The detection device includes a scanning module located inside the detection channel housing (300) for scanning the workpiece conveyed by the conveying body (100) to the detection channel housing (300).

2. The security inspection equipment according to claim 1, characterized in that, The maintenance housing (220) includes a top plate (221) and two side plates (222) connected to opposite ends of the top plate (221). At least one of the two side plates (222) is detachably connected to the top plate (221), and at least one of the two side plates (222) and the top plate (221) are respectively detachably connected between the main housing (210) and the detection channel housing (300).

3. The security inspection equipment according to claim 2, characterized in that, The main housing (210) is provided with a first mounting frame (211) at one end connected to the maintenance housing (220), and the detection channel housing (300) is provided with a second mounting frame (310) at one end connected to the maintenance housing (220). The maintenance housing (220) is detachably connected between the first mounting frame (211) and the second mounting frame (310).

4. The security inspection equipment according to claim 3, characterized in that, The top plate (221) includes a top plate body (221a), two first sidewalls (221b) disposed at two opposite ends of the top plate body (221a), and two first flange structures (221c) respectively connected to the two first sidewalls (221b). The first mounting frame (211) has a first end face (211a) opposite to the second mounting frame (310), and the second mounting frame (310) has a second end face opposite to the first mounting frame (211). The two first sidewalls (221b) located at the two opposite ends of the top plate body (221a) are respectively attached to the top of the first end face (211a) and the top of the second end face. The two first flange structures (221c) are respectively attached to the outer walls of the corresponding first mounting frame (211) and the second mounting frame (310), and are respectively detachably connected to the corresponding first mounting frame (211) and the second mounting frame (310).

5. The security inspection equipment according to claim 4, characterized in that, The side panel (222) includes a side panel body (222a), two second side walls (222b) disposed at two opposite ends of the side panel body (222a), and two second flange structures (222c) respectively connected to the two second side walls (222b). The two second sidewalls (222b) located at the two opposite ends of the side plate body (222a) are respectively attached to the side of the first end face (211a) and the side of the second end face. The two second flange structures (222c) are respectively attached to the outer walls of the corresponding first mounting frame (211) and the second mounting frame (310), and are respectively detachably connected to the corresponding first mounting frame (211) and the second mounting frame (310).

6. The security inspection equipment according to claim 5, characterized in that, The side plate (222) further includes two third sidewalls (222d) disposed at two other opposing ends of the side plate body (222a), one of which is detachably connected to the top plate body (221a).

7. The security inspection equipment according to claim 2, characterized in that, The security inspection equipment also includes a connecting assembly (600), at least one of the two side plates (222) is detachably connected to the top plate (221) via the connecting assembly (600), and at least one of the two side plates (222) and the top plate (221) are detachably connected to the main housing (210) and the detection channel housing (300) respectively via the connecting assembly (600).

8. The security inspection equipment according to claim 2, characterized in that, Both the top plate (221) and the side plate (222) include a base layer (201) and a shielding layer (202) stacked on the base layer (201).

9. The security inspection equipment according to claim 1, characterized in that, The security inspection equipment also includes a shield (400), which includes an annular main body (410) and a shield (420). The detection channel housing (300) is fitted with the annular main body (410) at both ends of the conveying direction of the conveying body (100). The shield (420) is provided in the area between the annular main body (410) and the outer wall of the detection channel housing (300).

10. The security inspection equipment according to claim 1, characterized in that, The transmission channel housing (200) is provided on both sides of the detection channel housing (300). And / or, The maintenance housing (220) is detachably connected to the conveying body (100).

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