Portable cultural relic X-ray scanning detector

The design of a portable X-ray scanning detector for cultural relics solves the problems of low efficiency and damage to cultural relics caused by fixed equipment, and realizes safe and efficient detection of cultural relics.

CN121577653APending Publication Date: 2026-02-27ANHUI HUIBO CULTURAL RELIC RESTORATION RES INST CO LTD
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Patent Information

Application Number
CN202511792466.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-01
Publication Date
2026-02-27

AI Technical Summary

Technical Problem

Most existing X-ray inspection equipment for cultural relics is stationary, resulting in low efficiency in the inspection of batches of cultural relics and easy damage to fragile cultural relics during transportation.

Method used

A portable X-ray scanning and inspection instrument for cultural relics was designed. It adopts a liftable frame and base plate structure. Cultural relics enter the scanning area in turn under the reciprocating motion of the frame and base plate, reducing downtime for replacement. Through the cooperation of protective cover and flat panel detector, safe and rapid inspection of cultural relics can be achieved.

Benefits of technology

It improves the efficiency of batch cultural relic testing, reduces the risk of damage during the handling of cultural relics, enhances the accuracy and safety of testing, and reduces the radiation exposure risk for operators.

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Abstract

The invention discloses a portable cultural relic X-ray scanning detector, and relates to the technical field of cultural relic detection.The portable cultural relic X-ray scanning detector comprises a rack and two carrying frames arranged on the inner side of the rack from top to bottom, the two carrying frames are fixed through a connecting plate, and horizontally-distributed bottom plates are arranged on the two carrying frames; a movable protective cover and a flat panel detector in a stable state are arranged on the front side and the rear side of the bottom plate located on the upper portion respectively, X-ray scanning equipment is installed on the protective cover, and the X-ray scanning equipment moves along with reciprocating lifting motion of the two carrying frames and the two bottom plates. The two bottom plates and the cultural relics carried by the two bottom plates are moved into the relative space of the protective cover and the flat panel detector in turn. According to the invention, the time required for shutdown and cultural relic replacement after single detection can be reduced, and the batch detection efficiency of cultural relics is improved. Through a mode of transferring the cultural relics to a non-detection area through lifting motion, the stability of the cultural relics in the transferring operation process after the detection operation is improved, and the device can adapt to sensitive fragile cultural relics.
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Description

Technical Field

[0001] This invention relates to the field of cultural relic testing technology, and in particular to a portable X-ray scanning instrument for cultural relics. Background Technology

[0002] In archaeological exploration, many unearthed artifacts have undergone long-term burial, and internal damage cannot be identified by the naked eye. During the bulk handling, cleaning, and temporary storage, these hidden dangers can easily lead to irreversible damage to the artifacts. X-ray scanning, however, can quickly distinguish between "intact artifacts," "artifacts requiring urgent repair," "fragmented artifacts," and "artifacts of special value" by analyzing differences in image grayscale. For example, in a batch of bronze coins, it can quickly screen out first-class artifacts with intact bodies and no severe corrosion, as well as damaged artifacts that require priority repair, replacing the inefficient process of disassembling and visually judging each item.

[0003] Specifically, for metal artifacts: X-rays can quickly identify thinning of the body beneath the rust layer, internal cracks, and casting shrinkage cavities. For ceramic artifacts, X-rays can detect kiln cracks beneath the glaze, hidden cracks in the body, and concealed gaps in pieced fragments. For organic artifacts, X-rays can clearly see wear on the fiber layer and internal cavities caused by mold.

[0004] Existing X-ray inspection equipment for cultural relics is mostly stationary, and can only scan one relic at a time. The time spent moving the relic into and out of the equipment before and after inspection is considerable, and the equipment must wait during these processes. This results in low efficiency for batch inspections of multiple relic sites. Furthermore, with fragile relic sites, the precision of manual handling during transport is difficult to guarantee; even slight shaking or displacement can damage the relic, affecting subsequent preservation procedures. Therefore, this application provides a portable X-ray scanning and inspection instrument for cultural relics to meet these needs. Summary of the Invention

[0005] To address the aforementioned issues, this application provides a portable X-ray scanning detector for cultural relics.

[0006] To achieve the above objectives, this application provides the following technical solution: a portable X-ray scanning detector for cultural relics, comprising a frame and two carriers arranged from top to bottom inside the frame. The two carriers are fixed by a connecting plate, and each carrier has a horizontally distributed base plate. A movable protective cover and a stable flat panel detector are respectively provided on the front and rear sides of the upper base plate. An X-ray scanning device is mounted on the protective cover. As the two carriers and the two base plates reciprocate upward and downward, the two base plates and the cultural relics they carry alternately move into the space between the protective cover and the flat panel detector. When the protective cover moves above the base plate, the X-ray scanning device performs a scanning operation on the cultural relic.

[0007] Furthermore, a linear module is installed on the frame. The linear module is located on the side of the base plate away from the carrier, and a slide is installed on the linear module. The slide is connected to the protective cover. When the slide moves with the operation of the linear module, the protective cover moves synchronously with the X-ray scanning equipment.

[0008] Furthermore, a positioning frame is fixed on the frame, and the flat panel detector is fixed inside the positioning frame. When the X-ray scanning equipment performs a scanning operation on the cultural relic, the protective cover moves to the top of the base plate, and its rear opening end abuts against the positioning frame.

[0009] Furthermore, a linear cylinder is installed inside the frame, and the output end of the linear cylinder is connected to the upper carrier. Positioning slide rails are provided on the front and rear sides of the linear cylinder. Both carriers are slidably installed on the positioning slide rails. When the linear cylinder drives the two carriers and the two base plates to move up and down reciprocally, the two carriers slide back and forth on the positioning slide rails.

[0010] Furthermore, the carrier is provided with a first support arm and a second support arm. Both the first support arm and the second support arm are L-shaped, and each of the longer arms of the first support arm and the second support arm is provided with a set of inserts. The bottom of the base plate is provided with two sets of symmetrically distributed first channels. When the base plate is placed on one side of the carrier, the longer arms of the first support arm and the second support arm abut against the bottom of the base plate, and the two sets of inserts are inserted into the inner side of the first channel.

[0011] Furthermore, a first guide bar and a second guide bar are respectively fixed on the first support arm and the second support arm. The first guide bar and the second guide bar are distributed in parallel from top to bottom. The carrier is slidably connected to the first guide bar and the second guide bar through two first guide rails fixed on its sides.

[0012] The first guide bar and the second guide bar are each connected to an electric gear by tooth meshing within their respective spaces. The electric gear is mounted on the frame. As the electric gear rotates, the first guide bar and the second guide bar, respectively carrying the first support arm and the second support arm, move in opposite directions.

[0013] Furthermore, the frame is fixed with a first support platform and a second support platform arranged from top to bottom. The first support platform and the second support platform are each provided with a movable docking plate. The bottom end of the docking plate is fixedly connected with a guide seat. The second guide rails fixed on the surface of the first support platform and the second support platform are slidably connected to the guide seat.

[0014] Both the first and second support platforms are equipped with electric gears. The guide seats are connected to the electric gears through teeth. When the base plate carrying the cultural relic moves to a position directly opposite the first or second support platform, the docking plate moves synchronously with the guide seat until the docking plate moves below the base plate.

[0015] Furthermore, the top of the docking plate is provided with multiple docking strips, and the bottom of the base plate is provided with a second channel. The second channel is perpendicular to the path of the first channel. When the docking plate moves to the bottom of the base plate, the docking strips slide into the inner side of the second channel.

[0016] Each of the docking plates has two sets of symmetrically distributed limiting blocks connected to its lower part via an adjusting shaft. Each docking plate also has two electric actuators installed at its bottom end to control the rotation of the adjusting shaft. As the adjusting shaft rotates, the two sets of limiting blocks can respectively engage with the inner sides of the gaps at both ends of the docking strip.

[0017] In summary, the technical effects and advantages of this invention are as follows:

[0018] 1. For scenarios requiring batch testing, this invention can reduce the time needed for downtime and artifact replacement after a single test, thereby improving the efficiency of batch testing and significantly shortening the overall testing cycle. By transferring the artifact's lifting and lowering motion to a non-testing area, the stability of the artifact transfer process after testing is improved, making it suitable for sensitive and fragile artifacts.

[0019] 2. This invention, with its detachable base plate, eliminates the need for manual handling of artifacts during material replacement, reducing direct contact between operators and the artifacts and providing protection. By moving the base plate above the first or second support platform before replacement, operators can perform material replacement away from the inspection area, avoiding X-ray radiation. Furthermore, it reduces obstruction and interference from external components during replacement, provides ample operating space, and improves operational portability. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 This is a schematic diagram of the structure of the protective cover of the present invention when it is detached from the base plate.

[0023] Figure 3 This is a schematic diagram of the structure of the first support arm and the second support arm of the present invention when they are detached from the base plate.

[0024] Figure 4 This is a schematic diagram of the connection structure between the linear cylinder and the carrier frame of the present invention.

[0025] Figure 5 This is a schematic diagram showing the relative positions of the linear cylinder, the carrier, and the positioning slide rail of the present invention.

[0026] Figure 6 This is a schematic diagram of the connection structure between the two carrier frames and the base plate of the present invention.

[0027] Figure 7 This is a schematic diagram of the structure of the protective cover of the present invention after being cut open.

[0028] Figure 8 This is a schematic diagram showing the first support arm and the second support arm under one of the base plates of the present invention in a disengaged state.

[0029] Figure 9 This is a schematic diagram of the two mating plates of the present invention.

[0030] Figure 10 This is a schematic diagram of the two docking plates of the present invention from a second perspective.

[0031] Figure 11 For the present invention Figure 10 Enlarged structural diagram at point A in the middle.

[0032] In the diagram: 1. Frame; 11. Linear module; 12. Slide; 13. Protective cover; 14. X-ray scanning equipment; 15. Positioning frame; 16. Flat panel detector; 17. Linear cylinder; 18. Positioning slide rail; 2. Carrier; 21. First support arm; 22. Second support arm; 23. Insert block; 24. First guide bar; 25. Second guide bar; 26. Electric gear one; 27. First guide rail; 3. Connecting plate; 4. Base plate; 41. First channel; 42. Second channel; 5. First support platform; 6. Second support platform; 7. Docking plate; 71. Docking bar; 72. Limiting block; 73. Adjusting shaft; 74. Electric actuator; 75. Guide seat; 76. Electric gear two; 77. Second guide rail. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1: Reference Figures 1-3 The portable X-ray scanning and inspection instrument for cultural relics shown includes a frame 1 and two carriers 2 arranged from top to bottom inside the frame 1. The two carriers 2 are fixed by a connecting plate 3, and each carrier 2 has a horizontally distributed base plate 4. The upper base plate 4 has a movable protective cover 13 on its front and a stable flat panel detector 16 on its rear side. An X-ray scanning device 14 is installed on the protective cover 13. As the two carriers 2 and the two base plates 4 reciprocate up and down, the two base plates 4 and the cultural relics they carry move alternately into the space between the protective cover 13 and the flat panel detector 16. When the protective cover 13 moves above the base plate 4, the X-ray scanning device 14 scans the cultural relics.

[0035] like Figure 1 As shown, during the scanning operation, the X-ray scanning device 14 utilizes the penetrability and material attenuation characteristics of X-rays. The X-ray source in the X-ray scanning device 14 emits an X-ray beam with controllable energy to penetrate the cultural relic. The flat panel detector 16 captures the intensity signal of the penetrated X-rays and converts it into a digital image. The image is then transmitted to the control system. The control system can restore the wear, defects, or structural features of the surface and interior of the cultural relic by the grayscale differences in different areas of the image, thus realizing the X-ray detection operation.

[0036] In this embodiment, since there are two base plates 4, cultural relics can be placed on both base plates 4. As the two carriers 2 and the two base plates 4 reciprocate and rise and fall, when the cultural relic on one base plate 4 is subjected to X-ray inspection, the cultural relic that has been inspected and placed on the other base plate 4 is located above or below the cultural relic undergoing inspection.

[0037] Specifically, when the upper base plate 4 and the artifact are in the testing area for testing, the artifact on the lower base plate 4 is below the artifact being tested. After the upper artifact is tested, as both base plates 4 and the two artifacts rise synchronously, the artifact on the lower base plate 4 can then be placed in the testing area for testing. The artifact that has already been tested is above the artifact being tested, allowing for artifact transfer, placement of new artifacts, and other operations. See [link to documentation]. Figure 1 , Figure 3 As shown.

[0038] For scenarios requiring batch testing, this system reduces the time needed for downtime and artifact replacement after each test, improving batch testing efficiency and significantly shortening the overall testing cycle. Furthermore, artifact replacement operations are all performed in non-testing areas located above and below the testing area, away from direct X-ray sources. Operators do not need to enter the radiation protection zone during sample replacement, greatly reducing radiation exposure risks. Moreover, by transferring the artifact's lifting and lowering movement to non-testing areas, the stability of artifact transfer operations after testing is improved, making it suitable for sensitive and fragile artifacts such as delicate painted decorations and cracked ceramics.

[0039] like Figure 3 , Figure 4 As shown, a linear module 11 is mounted on the frame 1. The linear module 11 is located on the side of the base plate 4 away from the carrier 2, and a slide 12 is mounted on the linear module 11. The slide 12 is connected to the protective cover 13. When the slide 12 moves with the operation of the linear module 11, the protective cover 13 and the X-ray scanning equipment 14 move synchronously. When the protective cover 13 and the X-ray scanning equipment 14 move above the base plate 4, a sealed detection space can be established to perform precise X-ray scanning detection on cultural relics, avoiding interference from external light and other factors, and ensuring the accuracy of the detection results. At the same time, the protective cover 13 can also effectively prevent X-ray leakage and ensure the safety of operators.

[0040] like Figure 4 , Figure 5 As shown, a positioning frame 15 is fixed on the frame 1, and a flat panel detector 16 is fixed inside the positioning frame 15. The positioning frame 15 serves to fix and protect the flat panel detector 16, preventing it from moving or being damaged during the inspection process. When the X-ray scanning equipment 14 performs a scanning operation on the cultural relic, the protective cover 13 moves above the base plate 4, and its rear open end abuts against the positioning frame 15. This makes the inspection space formed by the protective cover 13 and the base plate 4 more enclosed, further improving the accuracy and safety of the inspection.

[0041] A linear cylinder 17 is installed inside the frame 1, and the output end of the linear cylinder 17 is connected to the carrier 2 located above. The linear cylinder 17 serves as a power source, meeting the requirements for the reciprocating lifting and lowering movement of the carrier 2 during batch testing. Positioning slide rails 18 are provided on both the front and rear sides of the linear cylinder 17. Both carriers 2 are slidably mounted on the positioning slide rails 18. When the linear cylinder 17 drives the two carriers 2 and the two base plates 4 to reciprocate, the two carriers 2 slide back and forth on the positioning slide rails 18. The positioning slide rails 18 ensure the smoothness and accuracy of the lifting and lowering movement of the carriers 2, allowing the artifacts on the base plates 4 to move accurately to the testing area, thus improving testing efficiency.

[0042] Example 2: As Figures 6-8As shown, the carrier 2 is provided with a first support arm 21 and a second support arm 22. Both the first support arm 21 and the second support arm 22 are L-shaped, and each of the longer arms of the first support arm 21 and the second support arm 22 is provided with a set of inserts 23. The bottom of the base plate 4 is provided with two sets of symmetrically distributed first channels 41. When the base plate 4 is placed on one side of the carrier 2, the longer arms of the first support arm 21 and the second support arm 22 abut against the bottom of the base plate 4, and the two sets of inserts 23 are inserted into the inner side of the first channel 41.

[0043] The docking of the insert 23 with the first channel 41 makes the connection between the base plate 4 and the carrier 2 tighter and more stable. During the lifting and lowering movement of the carrier 2, the base plate 4 will not shake or shift, ensuring the safety of the cultural relic inspection process. At the same time, the positions of the first support arm 21 and the second support arm 22 can also be adjusted as needed to dock with or separate from the base plate 4. This connection method also facilitates the installation and disassembly of the base plate 4, making it convenient for operators to move the base plate 4.

[0044] Specifically, such as Figure 7 As shown, a first guide bar 24 and a second guide bar 25 are fixed on the first support arm 21 and the second support arm 22 respectively. The first guide bar 24 and the second guide bar 25 are distributed in parallel from top to bottom. The carrier 2 is slidably connected to the first guide bar 24 and the second guide bar 25 through two first guide rails 27 fixed on its sides.

[0045] The first guide bar 24 and the second guide bar 25 are each connected to an electric gear 26 via toothed meshing within their respective spaces. The electric gear 26 is mounted on the carrier 2. As the electric gear 26 rotates, the first guide bar 24 and the second guide bar 25, respectively carrying the first support arm 21 and the second support arm 22, move in opposite directions. Therefore, when it is necessary to disassemble the base plate 4, the electric gear 26 can be used to control the first support arm 21 and the second support arm 22 to move away from the base plate 4, causing the insert block 23 to disengage from the first channel 41, leaving space for the base plate 4 and the artifacts mounted on its surface to move along the horizontal plane, thereby achieving the purpose of transferring the artifacts along with the base plate 4. (See also...) Figure 8 As shown.

[0046] In this embodiment, the detachable base plate 4 eliminates the need for manual handling of cultural relics during material replacement, reducing direct contact between operators and the relics. This prevents issues such as paint detachment, fragment displacement, and damage to the porous base, thus protecting the relics. During batch testing, the relics can be pre-fixed to the base plate 4. During material replacement, the tested relics, along with the base plate 4, are removed and replaced with new relics and a new base plate 4. This eliminates the need for on-site artifact fixing, shortens the material replacement time, and improves the efficiency of batch testing.

[0047] Example 3: AsFigures 9-11 As shown, a first support platform 5 and a second support platform 6 arranged from top to bottom are fixed on the frame 1. Both the first support platform 5 and the second support platform 6 are provided with movable docking plates 7. The bottom end of each docking plate 7 is fixedly connected to a guide seat 75. The second guide rails 77 fixed on the surface of both the first support platform 5 and the second support platform 6 are slidably connected to the guide seat 75.

[0048] Both the first support platform 5 and the second support platform 6 are equipped with electric gears 76. Guide seats 75 are connected to the electric gears 76 via teeth. When the base plate 4, carrying the artifact, moves to a position directly opposite the first support platform 5 or the second support platform 6, the transfer of the inspected artifact along with the base plate 4 can be achieved by moving and resetting the docking plate 7. Specifically, the electric gears 76 drive the guide seats 75 and the docking plate 7 to move synchronously towards the base plate 4 until the docking plate 7 is below the base plate 4. (See [reference]). Figure 3 As shown.

[0049] Furthermore, such as Figure 11 As shown, the top of the docking plate 7 is provided with multiple docking strips 71, and the bottom of the base plate 4 is provided with a second channel 42. The second channel 42 is perpendicular to the path of the first channel 41. When the docking plate 7 moves to the bottom of the base plate 4, the docking strips 71 slide into the inner side of the second channel 42. The docking of multiple docking strips 71 with the second channel 42 can improve the tightness and accuracy of the docking of the docking plate 7 and the base plate 4. The docking plate 7 can use multiple docking strips 71 to form a multi-point distribution pattern to support the base plate 4, so that the docking plate 7 is subjected to more uniform force and there is no local pressure concentration.

[0050] like Figure 10 As shown, each of the docking plates 7 has two sets of symmetrically distributed limiting blocks 72 connected to its lower part via adjusting shafts 73. Each docking plate 7 also has two electric actuators 74 installed at its bottom to control the rotation of the adjusting shafts 73. As the adjusting shafts 73 rotate, the two sets of limiting blocks 72 can respectively engage with the inner sides of the gaps at both ends of the docking strip 71. Combined with the docking of the docking strip 71 and the second channel 42, the base plate 4 can be fully positioned, achieving precise docking between the docking plate 7 and the base plate 4. This further enhances the connection stability between the docking plate 7 and the base plate 4. During the transfer of the base plate 4 and the artifact, this effectively prevents the base plate 4 from shaking or shifting, ensuring the accuracy of the base plate 4's position distribution, thereby protecting the fragile artifacts on the base plate 4 and preventing adverse effects on the artifacts.

[0051] It is worth mentioning that, in this embodiment, after the multiple docking strips 71 on the docking plate 7 dock with the second channel 42 on the base plate 4, and the limiting blocks 72 respectively engage with the inner sides of the gaps at both ends of the docking strips 71, the electric gear 26 controls the first support arm 21 and the second support arm 22 to move away from the base plate 4, thereby causing the insert block 23 to disengage from the first channel 41, leaving space for the base plate 4 and the artifact mounted on its surface to move along the horizontal plane, removing the obstruction when the base plate 4 and the artifact 2 move in a plane, so as to achieve the purpose of transferring the artifact together with the base plate 4. The entire process is without mechanical interference, thus maintaining horizontal stability during the handover of the base plate 4, without tilting or shaking, and the artifact will not be damaged due to changes in posture.

[0052] As the docking plate 7 and guide seat 75 are reset, the base plate 4 and the artifact after testing can be moved to the first support platform 5 or the second support platform 6. After the staff removes the artifact after testing along with the base plate 4, a new artifact to be tested along with a new base plate 4 can be replaced. The artifact along with the base plate 4 is then placed on the docking plate 7, and the docking strip 71 is connected to the second channel 42. The two sets of limiting blocks 72 can be respectively inserted into the gaps at both ends of the docking strip 71.

[0053] By moving the base plate 4 above the first support platform 5 or the second support platform 6 for replacement, operators can change materials away from the inspection area, avoiding X-ray radiation. This also reduces obstruction from external components during replacement, provides ample operating space, and prevents workers from being hindered when adjusting the base plate 4 to the artifact due to misalignment, improving operational portability. Simultaneously, it effectively reduces the risk of radiation exposure, providing safer and more reliable technical support for artifact inspection. Furthermore, it significantly shortens material changeover time and improves the efficiency of batch testing.

[0054] Subsequently, under the power of the guide seat 75, the docking plate 7, carrying the new base plate 4, moves to the initial position where the base plate 4 is located on one side of the carrier 2. At this time, the electric gear 26 controls the first support arm 21 and the second support arm 22 to move towards the base plate 4, causing the insert block 23 to re-insert into the inner side of the first channel 41, completing the placement operation of the new artifact to be inspected. Since the base plate 4 is precisely and tightly docked with the docking plate 7, and the base plate 4 does not wobble or shift during its movement to the initial position on one side of the carrier 2, the accuracy of the docking between the first support arm 21 and the second support arm 22 and the base plate 4 is ensured. This also ensures that the two sets of insert blocks 23 precisely dock with the first channel 41, allowing the base plate 4 and the artifact to maintain the accuracy of their planar position during the lifting and lowering movement to the inspection area. This process also significantly shortens the handover time of the base plate 4 and improves the efficiency of the inspection work.

[0055] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A portable X-ray scanning detector for cultural relics, characterized in that: The device includes a frame (1) and two carriers (2) arranged from top to bottom inside the frame (1). The two carriers (2) are fixed by a connecting plate (3), and both carriers (2) are arranged with horizontally distributed base plates (4). The upper base plate (4) is provided with a movable protective cover (13) on the front and a flat panel detector (16) in a stable state on the rear side. An X-ray scanning device (14) is installed on the protective cover (13). As the two carriers (2) and the two base plates (4) move back and forth, the two base plates (4) and the artifacts they carry move in turn to the relative space between the protective cover (13) and the flat panel detector (16). When the protective cover (13) moves above the base plate (4), the X-ray scanning device (14) performs a scanning operation on the artifact.

2. The portable X-ray scanning detector for cultural relics according to claim 1, characterized in that: A linear module (11) is installed on the frame (1). The linear module (11) is located on the side of the base plate (4) away from the carrier (2). A slide (12) is installed on the linear module (11). The slide (12) is connected to the protective cover (13). When the slide (12) moves with the operation of the linear module (11), the protective cover (13) moves synchronously with the X-ray scanning equipment (14).

3. The portable X-ray scanning detector for cultural relics according to claim 2, characterized in that: A positioning frame (15) is fixed on the frame (1), and the flat panel detector (16) is fixed inside the positioning frame (15). When the X-ray scanning equipment (14) performs scanning operation on the cultural relic, the protective cover (13) moves to the top of the base plate (4), and its rear opening end abuts against the positioning frame (15).

4. The portable X-ray scanning detector for cultural relics according to claim 1, characterized in that: A linear cylinder (17) is installed inside the frame (1). The output end of the linear cylinder (17) is connected to the upper carrier (2). The linear cylinder (17) is provided with positioning slide rails (18) on the front and rear sides. Both carriers (2) are slidably installed on the positioning slide rails (18). When the linear cylinder (17) drives the two carriers (2) and the two base plates (4) to move up and down, the two carriers (2) slide back and forth on the positioning slide rails (18).

5. The portable X-ray scanning detector for cultural relics according to claim 4, characterized in that: The carrier (2) is provided with a first support arm (21) and a second support arm (22). The first support arm (21) and the second support arm (22) are both L-shaped structures. The longer arm of the first support arm (21) and the second support arm (22) are provided with a set of inserts (23). The bottom of the base plate (4) is provided with two sets of symmetrically distributed first channels (41). When the base plate (4) is placed on one side of the carrier (2), the longer arm of the first support arm (21) and the second support arm (22) are both abutted against the bottom of the base plate (4), and the two sets of inserts (23) are inserted into the inside of the first channel (41).

6. The portable X-ray scanning detector for cultural relics according to claim 4, characterized in that: The first support arm (21) and the second support arm (22) are respectively fixed with a first guide bar (24) and a second guide bar (25). The first guide bar (24) and the second guide bar (25) are distributed in parallel from top to bottom. The carrier (2) is slidably connected to the first guide bar (24) and the second guide bar (25) through two first guide rails (27) fixed on its side. The first guide bar (24) and the second guide bar (25) are connected to an electric gear (26) through tooth meshing in the relative space. The electric gear (26) is mounted on the carrier (2). As the electric gear (26) rotates, the first guide bar (24) and the second guide bar (25) respectively carry the first support arm (21) and the second support arm (22) and move in opposite directions.

7. The portable X-ray scanning detector for cultural relics according to claim 6, characterized in that: The frame (1) is fixed with a first support platform (5) and a second support platform (6) arranged from top to bottom. The first support platform (5) and the second support platform (6) are each provided with a movable docking plate (7). The bottom end of the docking plate (7) is fixedly connected with a guide seat (75). The second guide rail (77) fixed on the surface of the first support platform (5) and the second support platform (6) is slidably connected with the guide seat (75). Electric gear 2 (76) is installed on the first support platform (5) and the second support platform (6). The guide seat (75) is connected to the electric gear 2 (76) through teeth. When the base plate (4) carrying the cultural relic moves to the position directly opposite the first support platform (5) or the second support platform (6), the docking plate (7) moves synchronously with the movement of the guide seat (75) until the docking plate (7) moves below the base plate (4).

8. The portable X-ray scanning detector for cultural relics according to claim 7, characterized in that: The top of the docking plate (7) is provided with multiple docking strips (71), and the bottom of the base plate (4) is provided with a second channel (42). The second channel (42) is perpendicular to the path of the first channel (41). When the docking plate (7) moves to the bottom of the base plate (4), the docking strips (71) slide into the inside of the second channel (42). The bottom of each docking plate (7) is connected to two sets of symmetrically distributed limiting blocks (72) via adjusting shafts (73), and the bottom of each docking plate (7) is equipped with two electric actuators (74) for controlling the rotation of the adjusting shafts (73). As the adjusting shafts (73) rotate, the two sets of limiting blocks (72) can be respectively inserted into the gaps at both ends of the docking strip (71).