Security inspection machine

Abstract

The utility model relates to a security inspection machine, which comprises a frame body, a conveyor belt arranged on the frame body and a gantry security inspection machine arranged across the frame body and the conveyor belt, an X-ray emitting device and an X-ray receiving device are arranged in the gantry security inspection machine, and the X-ray emitting device is located at the top in the gantry security inspection machine. A containing cavity is formed in the position, corresponding to the X-ray emitting device, of the top of the frame body, the top of the containing cavity is flush with the top face of the frame body, the X-ray receiving device is arranged in the containing cavity and corresponds to the X-ray emitting device, and the two sides of the bottom of the containing cavity are each provided with a driven roller used for supporting the conveying belt. The containing cavity is formed in the top of the frame body and used for containing the X-ray receiving device, the X-ray receiving device does not protrude upwards relative to the height of the frame body, the whole conveying belt is kept at the same height, a passing face similar to a speed bump does not exist any more, and therefore the problems that small bags or round bags are prone to rolling and falling when passing through the gantry type security inspection machine, and the safety is poor are solved. Therefore, the problem that the conveying belt is clamped into a gap formed by the conveying belt and the frame body is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of security detection, in particular to an X-ray security inspection machine. Background Art

[0002] The existing gantry X-ray security inspection machine is mainly a side-illuminated gantry security inspection machine. Its X-ray emission source is placed on the side. The X-ray emits from the side X-ray emission source, irradiates and passes through the objects (boxes, packages, express deliveries, etc.) on the conveyor belt. Through the detection plates on the side and the top, the transmitted X-ray signals are received and converted into electrical signals. Through a dedicated image processing algorithm, they are converted into images to display the items placed inside the objects on the conveyor belt. The images are displayed on the screen for security inspectors to determine whether prohibited items are included. Its disadvantages are as follows: After the objects (boxes, packages, express deliveries, etc.) on the conveyor belt are placed horizontally, many small items have a very small thickness. After the X-ray emitted from the side irradiates and passes through the objects (boxes, packages, express deliveries, etc.) on the conveyor belt, the imaging is very short. Many items overlap each other, and it is very difficult for security inspectors to determine whether prohibited items are included from the overlapping images, resulting in inaccurate judgments and dangerous goods flowing into the circulation field.

[0003] A Chinese patent with the patent number 201921894920.7 and the patent name of a top-illuminated gantry X-ray security inspection device discloses a top-illuminated gantry X-ray security inspection device, including a frame body; a conveyor belt arranged on the frame body; a gantry security inspection machine straddling the frame body and the conveyor belt; the gantry security inspection machine is provided with an X-ray emission device at the top; an X-ray receiving device corresponding to the X-ray emission device is arranged at the bottom of the gantry security inspection machine; the X-ray emission device and the X-ray receiving device form a scanning area for X-ray scanning of the inspected items on the conveyor belt; the horizontal height of the scanning area inside the gantry security inspection machine is higher than the height of the conveyor belt at other positions. By arranging the X-ray emission device at the top of the security inspection machine and placing the X-ray detector at the bottom, the distance from the inspected items is close, the image is clear, and the items are displayed completely.

[0004] Persons skilled in the art have found in the actual application process that the existing top-illuminated security inspection machine is directly placed on the production line. Due to the existence of the X-ray detector, the passing surface of the conveyor belt is raised, making the original horizontal conveyor belt surface artificially form a passing surface similar to a speed bump. Small bags or round packages are likely to roll over, fall, and get stuck in the gap formed by the conveyor belt and the frame body when passing through, causing potential hazards. Summary of the Utility Model

[0005] In view of the above problems existing in the prior art, the main object of the present utility model is to provide a security inspection machine, which can solve the problem that small bags or round bags in the existing overhead gantry X-ray security inspection equipment are prone to roll and fall when passing through the gantry security inspection machine and get stuck in the gap formed between the conveyor belt and the frame body.

[0006] To achieve the above object, the technical solution adopted by the present utility model is as follows: A security inspection machine includes a frame body, a conveyor belt arranged on the frame body, a gantry security inspection machine spanning across the frame body and the conveyor belt. The gantry security inspection machine is provided with an X-ray emitting device and an X-ray receiving device. The X-ray emitting device is located at the top inside the gantry security inspection machine. A concave-shaped receiving cavity is provided at the corresponding position of the top of the frame body and the X-ray emitting device. The top of the receiving cavity is flush with the top surface of the frame body and is located below the conveying surface of the conveyor belt. The X-ray receiving device is arranged in the receiving cavity and is correspondingly arranged with the X-ray emitting device, forming a scanning area for scanning the inspected articles on the conveyor belt; two driven rollers for supporting the conveyor belt are respectively arranged on both sides of the bottom of the receiving cavity.

[0007] Further, the top of the X-ray receiving device is flush with the top surface of the frame body or lower than the top surface of the frame body.

[0008] Furthermore, a support roller is respectively arranged on both sides of the top of the receiving cavity, and the height of the support roller is flush with the top surface of the frame body.

[0009] Further, a slide rail perpendicular to the conveying direction of the conveyor belt is arranged in the receiving cavity, and the X-ray receiving device is arranged on the slide rail, which is convenient for sliding out from the bottom of the conveyor belt to the side for maintenance.

[0010] Compared with the prior art, the beneficial effect of the present utility model lies in that by arranging a receiving cavity at the top of the frame body to place the X-ray receiving device, the height of the X-ray receiving device relative to the frame body no longer protrudes upward, so that the conveyor belt as a whole maintains the same height and closely fits with the frame body. There is no longer a passing surface similar to a speed bump, and there is no gap formed between the conveyor belt and the frame body, thus solving the problem that small bags or round bags are prone to roll and fall when passing through the gantry security inspection machine and get stuck in the gap formed between the conveyor belt and the frame body. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is the overall schematic diagram of the present utility model;

[0012] Figure 2 is the cross-sectional schematic diagram of the present utility model;

[0013] Figure 3 is the side schematic diagram of the present utility model;

[0014] Figure 4 is the schematic diagram of the frame body of the present utility model.

[0015] Legend: 1. Frame; 101. Accommodation cavity; 102. Driven roller; 103. Support roller; 2. Conveyor belt; 3. Gantry security inspection machine; 301. X-ray emission device; 302. X-ray reception device. Specific implementation mode

[0016] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model.

[0017] Embodiment 1

[0018] As Figures 1 to 4 shown, a security inspection machine includes a frame 1, a conveyor belt 2 disposed on the frame 1, and a gantry security inspection machine 3 spanning the frame 1 and the conveyor belt 2. The gantry security inspection machine 3 is provided with an X-ray emission device 301 and an X-ray reception device 302. The X-ray emission device 301 is located at the top inside the gantry security inspection machine 3. At the position corresponding to the X-ray emission device 301 on the top of the frame 1, there is a downwardly concave U-shaped accommodation cavity 101. The top of the accommodation cavity 101 is flush with the top surface of the frame 1 and is located below the conveying surface of the conveyor belt 2. The X-ray reception device 302 is disposed in the accommodation cavity 101 and is correspondingly disposed with the X-ray emission device 301, forming a scanning area for scanning the inspected articles on the conveyor belt 2; on both sides of the bottom of the accommodation cavity 101, there is respectively a driven roller 102 for supporting the conveyor belt 2;

[0019] Support the conveyor belt 2 passing below the X-ray reception device 302, so that the conveyor belt 2 is separated from the accommodation cavity 101 by a certain distance, which can prevent the conveyor belt 2 from rubbing against the bottom of the X-ray reception device 302 during operation and causing interference to it.

[0020] The top of the X-ray reception device 302 is flush with the top surface of the frame 1 or slightly lower than the top surface of the frame 1.

[0021] By providing an accommodation cavity 101 on the top of the frame 1 to place the X-ray reception device 302, the height of the X-ray reception device 302 relative to the frame 1 no longer protrudes upward, so that the conveyor belt 2 maintains the same height as a whole and is closely attached to the frame 1 without gaps, and there is no longer a passing surface similar to a speed bump, and there is no longer a gap formed between the conveyor belt 2 and the frame 1 due to the height difference, thus solving the problem that small packages or round packages are prone to roll and fall and get stuck in the gap formed between the conveyor belt 2 and the frame 1 when passing through the gantry security inspection machine 3.

[0022] Embodiment 2

[0023] As a preferred solution of Embodiment 1, a support roller 103 is provided on each side of the top of the accommodation cavity 101. The height of the support roller 103 is flush with the top surface of the frame body 1. By providing the support rollers 103 on both sides of the top of the X-ray receiving device 302, the conveyor belt 2 passing above the X-ray receiving device 302 is supported, which can prevent the conveyor belt 2 from rubbing against the X-ray receiving device 302 for a long time during operation and avoid causing interference to it.

[0024] Embodiment 3

[0025] As a preferred solution of Embodiment 1 or 2, a slide rail perpendicular to the conveying direction of the conveyor belt 2 is provided in the accommodation cavity 101, and the X-ray receiving device 302 is arranged on the slide rail, which is convenient for sliding out of the frame body 1 from the bottom to the side of the conveyor belt 2 for maintenance.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or equivalently replace some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An X-ray security inspection machine, characterized in that: It includes a frame body, a conveyor belt arranged on the frame body, and a gantry security inspection machine spanning the frame body and the conveyor belt. An X-ray emitting device and an X-ray receiving device are provided inside the gantry security inspection machine. The X-ray emitting device is located at the top inside the gantry security inspection machine. A concave-shaped receiving cavity is provided at the corresponding position on the top of the frame body and corresponding to the X-ray emitting device. The top of the receiving cavity is flush with the top surface of the frame body and is located below the conveying surface of the conveyor belt. The X-ray receiving device is arranged in the receiving cavity and is correspondingly arranged with the X-ray emitting device, forming a scanning area for scanning the inspected articles on the conveyor belt; two driven rollers for supporting the conveyor belt are respectively provided on both sides of the bottom of the receiving cavity.

2. The security inspection machine according to claim 1, wherein: The top of the X-ray receiving device is flush with the top surface of the frame body or lower than the top surface of the frame body.

3. The security inspection machine according to claim 1, wherein: A support roller is respectively provided on both sides of the top of the receiving cavity, and the height of the support roller is flush with the top surface of the frame body.

4. The security inspection machine according to any one of claims 1 to 3, characterized in that: A slide rail perpendicular to the conveying direction of the conveyor belt is provided inside the receiving cavity, and the X-ray receiving device is arranged on the slide rail.

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