Light-transmitting seam dustproof device and X-ray linear array imaging system

Abstract

The utility model belongs to the technical field of detection, and discloses a light-transmitting seam dustproof device and an X-ray linear array imaging system.The light-transmitting seam dustproof device comprises a dustproof plate, the dustproof plate is arranged above or below a light-transmitting seam in a crossing mode, the dustproof plate is provided with a protruding part, the protruding part protrudes out of the end face of the dustproof plate upwards, and the top face of the protruding part is located above the light-transmitting seam. Through the arrangement of the dustproof plate, dust and impurities can be prevented from being accumulated above the X-ray receiver through the protruding parts on the dustproof plate, interference to the X-ray receiver is reduced, and the quality of X-ray images is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of detection technology, and in particular to a light-transmitting slit dustproof device and an X-ray linear array imaging system. Background Technology

[0002] Traditional X-ray linear array imaging systems have the light source above the tunnel, with X-ray receivers arranged on the bottom and sides of the tunnel to ensure the entire security checkpoint is covered by X-rays. The X-ray receivers located at the bottom of the tunnel need to be installed below the conveyor belt support plate to ensure that the X-rays penetrate the items being inspected on the conveyor belt before reaching the receivers. Therefore, the conveyor belt support plate uses a split structure, with light-transmitting slits formed at intervals to allow X-rays to pass through. Because these slits are located below the conveyor belt, dust from the conveyor belt and metal debris generated by friction between the belt and the support plate fall and accumulate above the X-ray receivers. This dust and debris significantly affects the X-ray receivers' reception of X-rays, thus affecting the X-ray images. Utility Model Content

[0003] The purpose of this invention is to provide a light-transmitting slit dustproof device that can prevent dust and impurities from accumulating above the X-ray receiver and ensure the quality of X-ray images.

[0004] To achieve this objective, the present invention adopts the following technical solution: a light-transmitting slit dustproof device, applied to an X-ray linear array imaging system, wherein the X-ray linear array imaging system is provided with a light-transmitting slit, and the light-transmitting slit dustproof device includes a dustproof plate, which is horizontally disposed above or below the light-transmitting slit. The dustproof plate is provided with a protrusion, which protrudes upward from the end face of the dustproof plate, and the top surface of the protrusion is located above the light-transmitting slit.

[0005] Preferably, the top surface of the protrusion is a flat surface or an arc surface with the opening facing downwards.

[0006] Preferably, the dustproof plate is made of a material with an equivalent atomic number of less than or equal to 18.

[0007] Preferably, the light-transmitting slit dustproof device further includes a pressure plate, which is symmetrically arranged on both sides of the protrusion and abuts against the dustproof plate. In the vertical direction, the height of the top surface of the protrusion is greater than or equal to the height of the top surface of the pressure plate.

[0008] Preferably, the top surface of the pressure plate is provided with a first guide portion, which is located on the side of the pressure plate opposite to the protrusion.

[0009] Preferably, the side wall of the protrusion is provided with a dustproof groove, and one end of the pressure plate near the protrusion is accommodated in the dustproof groove.

[0010] Preferably, the pressure plate abuts against the side wall of the protrusion.

[0011] Preferably, the light-transmitting slit dustproof device further includes fasteners, the pressure plate has a first through hole, the dustproof plate has a second through hole, and the fasteners pass through the first through hole and the second through hole and are connected to the X-ray linear array imaging system.

[0012] Another objective of this invention is to provide an X-ray linear array imaging system that can prevent dust and impurities from accumulating above the X-ray receiver, thereby ensuring the quality of X-ray images.

[0013] To achieve this objective, the present invention adopts the following technical solution: an X-ray linear array imaging system, including the aforementioned light-transmitting slit dustproof device.

[0014] Preferably, the X-ray linear array imaging system further includes multiple belt support plates, which are spaced apart and form the light-transmitting slit between two adjacent belt support plates. In the vertical direction, the top surface height of the protrusion is less than the top surface height of the belt support plate.

[0015] The beneficial effects of this utility model are as follows: By setting a dustproof plate, the protrusion on the dustproof plate can cover the light-transmitting slit, and the protrusion protrudes upward from the end face of the dustproof plate. When the conveyor belt moves, it will rub against the protrusion, carrying away the dust and impurities on the top surface of the protrusion, or moving the dust and impurities to the side of the protrusion, thus preventing dust and impurities from accumulating in the light-transmitting slit or passing through the light-transmitting slit and accumulating on the X-ray receiver, reducing the interference to the X-ray receiver and ensuring the quality of X-ray images.

[0016] This invention also provides an X-ray linear array imaging system that, by setting a dustproof plate, can prevent dust and impurities from accumulating above the X-ray receiver, thus ensuring the quality of X-ray images. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the light-transmitting seam dustproof device according to an embodiment of this utility model;

[0018] Figure 2 This is a front view of the light-transmitting slit dustproof device according to an embodiment of this utility model.

[0019] In the figure: 100, belt support plate; 110, support component; 120, light-transmitting slit; 200, X-ray receiver; 300, dustproof plate; 310, protrusion; 311, second guide part; 400, pressure plate; 410, first guide part; 500, fastener. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0021] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0024] Reference Figure 1 and Figure 2 As shown, a light-transmitting slit dustproof device provided according to an embodiment of this application is applied to an X-ray linear array imaging system. The X-ray linear array imaging system is provided with a light-transmitting slit 120 and includes an X-ray receiver 200 located directly below the light-transmitting slit 120.

[0025] X-ray linear array imaging systems are mainly used for medical examinations, industrial flaw detection, and security inspections. In some embodiments, the X-ray linear array imaging system is an X-ray security inspection system used for baggage security checks at stations, airports, logistics and express delivery locations. This type of X-ray linear array imaging system has a light-transmitting slit 120 in the transport path of the baggage. When the baggage to be inspected is transported through the light-transmitting slit 120, the X-ray receiver 200 receives the X-rays passing through the item to be inspected. After the X-rays received by the X-ray receiver 200 are processed, an X-ray image with color contrast and tonal differences can be formed, thus realizing the security inspection of the baggage.

[0026] A dustproof plate 300 is positioned across the space above or below the light-transmitting slit 120, and its two sides are detachably connected to the X-ray linear array imaging system. Optionally, the dustproof plate 300 can be detachably connected to the X-ray linear array imaging system via screws, snap-fits, pins, or locks, which will not be elaborated further here.

[0027] The dustproof panel 300 has a protrusion 310 that protrudes upward from the end face of the dustproof panel 300. When the dustproof panel 300 is above the light-transmitting slit 120, the protrusion 310 is entirely above the light-transmitting slit 120. When the dustproof panel 300 is below the light-transmitting slit 120, the protrusion 310 passes through the light-transmitting slit 120, and the top surface of the protrusion 310 is above the light-transmitting slit 120.

[0028] Understandably, by setting up the dustproof plate 300, the protrusion 310 on the dustproof plate 300 can cover the light-transmitting slit 120, and the protrusion 310 protrudes upward from the end face of the dustproof plate 300, thus preventing the formation of a groove structure above the X-ray receiver 200. In other words, the protrusion 310 divides the original groove structure at the light-transmitting slit 120 into two smaller groove structures, and the partition between the two smaller groove structures is the protrusion 310. When the conveyor belt moves, it will rub against the top surface of the protrusion 310, carrying away dust and impurities from the top surface of the protrusion 310, or moving the dust and impurities to the side of the protrusion 310, preventing dust and impurities from accumulating in the light-transmitting slit 120 or passing through the light-transmitting slit 120 and accumulating above the X-ray receiver 200, reducing interference to the X-ray receiver 200 and ensuring the quality of the X-ray image. In addition, the dustproof plate 300 can be disassembled for cleaning, preventing dust and impurities from accumulating on the side of the protrusion 310 and ensuring the cleanliness of the dustproof device.

[0029] Furthermore, the dustproof panel 300 is made of a material with an equivalent atomic number of less than or equal to 18. For example, the dustproof panel 300 may be made of acrylic or aluminum. The thickness of the dustproof panel 300 is less than or equal to 1 mm.

[0030] The dust shield 300 is made of a material with an equivalent atomic number of 18 or less, which reduces the natural attenuation of X-ray energy as it passes through the dust shield 300, further improving X-ray image quality. Limiting the thickness of the dust shield 300 to 1 mm or less ensures structural strength while avoiding material waste and reducing material costs. Specifically, when the X-ray linear array imaging system uses a belt with metal buckles, the buckles will continuously rub against the top surface of the dust shield 300. To extend the service life of the dust shield 300, it is made of aluminum.

[0031] Reference Figure 1 As shown, it can be understood that the top surface of the protrusion 310 is either a flat surface or an arc surface with the opening facing downwards.

[0032] Setting the top surface of the protrusion 310 as a flat surface or an arc surface with the opening facing downwards can prevent the top surface of the protrusion 310 from forming a groove structure, thereby preventing dust and impurities from accumulating on the top surface of the protrusion 310 and effectively improving the structural rationality of the dustproof plate 300.

[0033] In some embodiments, the top surface of the protrusion 310 may also be a protrusion structure with an outer diameter that gradually decreases from bottom to top, such as a tapered structure or trapezoidal structure with a smaller top and a larger bottom, etc., which will not be described in detail here.

[0034] Reference Figure 1 and Figure 2 As shown, the light-transmitting slit dustproof device also includes two pressure plates 400, which are arranged along the length of the dustproof plate 300 (or the length of the light-transmitting slit 120). The two pressure plates 400 are symmetrically positioned on both sides of the protrusion 310 and abut against the dustproof plate 300; in other words, the dustproof plate 300 is located above and presses against the pressure plates 400. Vertically, the top surface height of the protrusion 310 is greater than or equal to the top surface height of the pressure plates 400, thereby preventing the formation of a groove structure between the two pressure plates 400 and the top surface of the protrusion 310. Optionally, the pressure plates 400 can be made of nylon, SPCC steel plate, etc., which will not be elaborated further here.

[0035] Because the protrusion 310 protrudes from the end face of the dustproof plate 300, when the conveyor belt carrying luggage or other items moves to the protrusion 310, it is prone to colliding with the side wall of the protrusion 310. In addition, the long-term friction between the conveyor belt and the top surface of the protrusion 310 can easily cause the protrusion 310 to bend and twist. By setting pressure plates 400, with two pressure plates 400 located on both sides of the protrusion 310, on the one hand, the two pressure plates 400 cooperate to limit the protrusion 310 from both sides, restricting the deformation of the protrusion 310 and extending its service life; on the other hand, the pressure plates 400 can support the conveyor belt before it contacts the protrusion 310, reducing the inertia of the conveyor belt, reducing the impact and friction forces that the protrusion 310 may receive, and reducing the wear of the protrusion 310.

[0036] Furthermore, the dustproof device for the light-transmitting slit also includes fasteners 500. The pressure plate 400 has a first through hole, the dustproof plate 300 has a second through hole, and the X-ray linear array imaging system has a third through hole. Fasteners 500 are sequentially inserted through the first, second, and third through holes and connected to the X-ray linear array imaging system. Multiple first through holes are provided, spaced apart along the length of the light-transmitting slit 120. The fasteners 500, second, and third through holes correspond one-to-one with the first through holes. Optionally, the fasteners 500 can be standard matching screw and nut components, pin and snap ring components, etc., which will not be elaborated further here.

[0037] By setting fastener 500, the pressure plate 400 and dustproof plate 300 are locked onto the support member 110. While ensuring the stable installation of the pressure plate 400 and dustproof plate 300, the connection structure between the dustproof plate 300 and the support member 110 is simplified, making it convenient for users to assemble and use, and improving the ease of assembly of the dustproof plate 300.

[0038] Reference Figure 2 As shown, it can be understood that the top surface of the pressure plate 400 is provided with a first guide portion 410. The first guide portion 410 may be a chamfered structure provided on the edge of the pressure plate 400. The first guide portion 410 is located on the side of the pressure plate 400 away from the protrusion 310.

[0039] By providing the first guide portion 410, the conveyor belt can be guided to the top surface of the pressure plate 400. Especially when the inspection machine uses a belt with metal buckles, the first guide portion 410 can prevent the buckles from colliding with the pressure plate 400, thus avoiding impact on the conveyor belt operation and improving the structural rationality of the pressure block. Furthermore, second guide portions 311 are symmetrically provided on both sides of the protrusion 310. The structure and effect of the second guide portions 311 are described above in the section on the first guide portion 410, and will not be repeated here.

[0040] Furthermore, the side wall of the protrusion 310 is provided with a dustproof groove. At this time, the dustproof plate 300 is in the shape of an "I" and the end of the pressure plate 400 near the protrusion 310 is accommodated in the dustproof groove.

[0041] When the conveyor belt rubs against the top surface of the protrusion 310, dust and impurities on the top surface of the protrusion 310 are carried by the conveyor belt and fall onto the pressure plate 400 on one side of the protrusion 310. By setting dustproof grooves, dust and impurities can be prevented from entering the gap between the protrusion 310 and the pressure plate 400, making it convenient for users to clean the dustproof device later. Optionally, multiple dustproof grooves can be set in the vertical direction, and the end of the pressure plate 400 near the protrusion 310 has a protruding structure that corresponds to each of the multiple dustproof grooves. At this time, a tortuous labyrinthine channel can be formed between the side wall of the pressure plate 400 and the protrusion 310, which can not only effectively prevent dust intrusion, but also improve the structural tightness between the pressure plate 400 and the protrusion 310, further enhancing the deformation resistance of the protrusion 310.

[0042] Furthermore, the pressure plate 400 abuts against the side wall of the protrusion 310.

[0043] The pressure plate 400 and the side wall of the protrusion 310 abut against each other, reducing the gap between the pressure plate 400 and the protrusion 310, preventing dust and impurities from entering the gap between the protrusion 310 and the pressure plate 400, and making it easier for users to clean the dustproof device later.

[0044] An X-ray linear array imaging system according to another embodiment of the present invention includes multiple belt support plates 100 and the light-transmitting slit dustproof device of the above embodiment. The belt support plates 100 are used to support the conveyor belt in the X-ray linear array imaging system. The conveyor belt is used to transport items to be inspected. Multiple belt support plates 100 are spaced apart, and support members 110 are respectively provided on opposite sides of two adjacent belt support plates 100. A third through hole is provided in the support member 110. Optionally, the support member 110 can be a folded edge structure provided on the side wall of the belt support plate 100, or a platform structure provided on the side wall of the belt support plate 100, etc., which will not be described in detail here.

[0045] A light-transmitting slit 120 of a certain width is formed between the two support members 110, and the dustproof plate 300 and the pressure plate 400 are detachably connected to the support member 110 by fasteners 500.

[0046] It should be noted that the two sides of the dustproof plate 300 can be installed above the support member 110, so that the protrusion 310 protrudes above the light-transmitting slit 120; the two sides of the dustproof plate 300 can also be installed below the support member 110. In this case, the protrusion 310 protrudes upward through the light-transmitting slit 120, and the top surface of the protrusion 310 is located above the light-transmitting slit 120, which can also play a role in dust prevention.

[0047] Another embodiment of the present invention provides an X-ray linear array imaging system including the aforementioned dustproof device for the light-transmitting slit. Therefore, the X-ray linear array imaging system provided in this embodiment also possesses the beneficial effects described in the above embodiments, and will not be repeated here.

[0048] Furthermore, in the vertical direction, the top surface height of the protrusion 310 is less than the top surface height of the belt support plate 100. Since the top surface height of the protrusion 310 is greater than or equal to the top surface height of the pressure plate 400, the top surfaces of the support member 110, the protrusion 310, the pressure plate 400, and other components located between the two belt support plates 100 are all located below the top surface of the belt support plate 100.

[0049] The top surface of the protrusion 310 is set lower than the top surface of the belt support plate 100 to prevent the protrusion 310 or the pressure plate 400 from protruding from the top surface of the belt support plate 100 and affecting the conveyor belt on the belt support plate 100 from conveying items.

[0050] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A light-transmitting gap dustproof device applied to an X-ray linear array imaging system, wherein the X-ray linear array imaging system is provided with a light-transmitting gap (120), and the light-transmitting gap dustproof device is characterized in that, The dustproof plate (300) is provided with a protruding part (310) protruding upward from the end surface of the dustproof plate (300), and the top surface of the protruding part (310) is located above the light-transmitting gap (120). The top surface of the protruding part (310) is a plane or an arc surface with an opening downward.

2. The light-transmitting seam-draught device according to claim 1, characterized in that The dustproof plate (300) is made of a material with an equivalent atomic number less than or equal to 18.

3. The light-transmitting seam-draught device according to claim 1, characterized in that The light-transmitting gap dustproof device further comprises a pressing plate (400) symmetrically arranged on both sides of the protruding part (310) and tightly abutting against the dustproof plate (300), and in the vertical direction, the height of the top surface of the protruding part (310) is greater than or equal to the height of the top surface of the pressing plate (400).

4. The light-transmitting seam-draught device according to any one of claims 1 to 3, characterized in that The top surface of the pressing plate (400) is provided with a first guide part (410) located on the side of the pressing plate (400) away from the protruding part (310).

5. The light-transmitting seam-draught device according to claim 4, characterized in that The side wall of the protruding part (310) is provided with a dustproof groove, and one end of the pressing plate (400) close to the protruding part (310) is accommodated in the dustproof groove.

6. The light-transmitting seam-draught device according to claim 4, characterized in that The pressing plate (400) abuts against the side wall of the protruding part (310).

7. The light-transmitting seam gasket of claim 4, wherein, The light-transmitting gap dustproof device further comprises a fastener (500), the pressing plate (400) is provided with a first through hole, the dustproof plate (300) is provided with a second through hole, the fastener (500) is arranged in the first through hole and the second through hole and connected with the X-ray linear array imaging system.

8. The light-transmitting seam gasket of claim 4, wherein, The light-transmitting gap dustproof device of any one of claims 1-8.

9. An X-ray line array imaging system, characterized by The X-ray linear array imaging system further comprises a plurality of belt support plates (100), the plurality of belt support plates (100) are arranged at intervals, and the light-transmitting gap (120) is formed between two adjacent belt support plates (100), and in the vertical direction, the height of the top surface of the protruding part (310) is less than the height of the top surface of the belt support plate (100).

10. The X-ray linear array imaging system of claim 9, wherein, ​

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