Nondestructive testing and repairing device for restoring colored drawing layer of tomb building in western region of Hangzang

Abstract

The invention relates to the technical field of building repair, and discloses a nondestructive testing and repairing device for restoring a colored drawing layer of a tomb building in the western region of the Hangzang, the nondestructive testing and repairing device comprises a base, the top of the base is fixedly provided with a machine body, and the outer side of the machine body is fixedly provided with a repairing mechanism. According to the nondestructive testing and repairing device for restoring the colored drawing layer of the tomb building in the western region of the Hangzang, nondestructive testing and accurate repairing of diseases of the colored drawing layer are achieved through a high-precision sensor and a 3D printing repairing nozzle, the sensor can capture cracks and hollowing areas in the colored drawing layer in real time, a three-dimensional model is constructed in combination with a detection camera, damage distribution is visually presented, and the detection accuracy is improved. The 3D printing nozzle dynamically adjusts the spraying track and dosage of the adhesive according to model data, it is ensured that the repairing material is matched with the components of the original colored drawing layer, the design effectively avoids secondary damage to cultural relics caused by traditional sampling analysis, meanwhile, the operation efficiency is greatly improved through automatic repairing, and manual operation errors are remarkably reduced.

Description

Technical Field

[0001] This invention relates to the field of architectural restoration technology, specifically to a non-destructive testing and restoration device for restoring the painted layers of Han and Tang dynasty Western Region tomb architecture. Background Technology

[0002] During the Han and Tang dynasties, the Western Regions served as a core hub of the Silk Road. The painted tombs there blended Central Plains techniques with Western Region culture, serving as crucial material evidence for studying ancient civilization exchanges. However, the region is characterized by arid and windy climates, and the tombs are mostly constructed of adobe or brick and stone. The painted layers are often threatened by multiple diseases. On the one hand, soil salinity migration causes the painted layers to become brittle and peel, and some areas develop cracks due to humidity changes. On the other hand, historical tomb raiding, natural subsidence, and improper handling during modern conservation efforts have further exacerbated the risk of peeling. Current mainstream testing methods rely heavily on sampling and analysis, which can easily cause secondary damage to the fragile painted layers. Restoration work mainly involves manual local filling, making it difficult to achieve overall protection of large areas of painted layers.

[0003] The painted decorations in Han and Tang dynasty tombs in the Western Regions primarily consist of mineral pigments (such as azurite and ochre) and plant-based binders. After thousands of years, the aging of the binders has significantly reduced the adhesion between the pigment layer and the substrate, making them susceptible to detachment even with slight vibrations. Furthermore, the large diurnal temperature variations in the Western Regions cause the painted layer and the tomb wall substrate to expand and contract at different rates, resulting in periodic stress damage. While existing non-destructive testing technologies, such as X-ray fluorescence spectroscopy, can analyze pigment composition, they cannot visually reveal the distribution of cracks within the painted layer. Infrared thermal imaging technology can detect hollow areas, but it is difficult to integrate with the restoration process in real time. During the restoration process, the curing speed of traditional adhesives is insufficient to meet on-site requirements, and there is a lack of immediate assessment methods for the restored area. This leads to low efficiency and poor precision in conservation efforts, failing to meet the principles of "minimal intervention" and "reversibility" in cultural relic protection. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a non-destructive testing and restoration device for restoring the painted layers of Han and Tang Dynasty Western Region tombs. This device offers advantages such as multi-functional restoration and precise testing. It solves the problem that the painted layers in Han and Tang Dynasty Western Region tombs, primarily composed of mineral pigments (such as azurite and ochre) and plant-based binders, suffer from significant degradation after thousands of years due to binder aging. This degradation leads to a substantial decrease in the adhesion between the pigment layer and the substrate, making them susceptible to detachment even with slight vibrations. Furthermore, the large diurnal temperature range in the Western Regions causes different rates of thermal expansion and contraction between the painted layer and the tomb wall substrate, resulting in periodic stress damage. Existing non-destructive testing technologies, such as X-ray fluorescence spectroscopy, while capable of analyzing pigment composition, cannot visually represent the distribution of internal cracks in the painted layer. Infrared thermal imaging technology, while capable of detecting hollow areas, is difficult to integrate with the restoration process in real time. During the restoration process, the curing speed of traditional adhesives is insufficient to meet on-site requirements, and there is a lack of immediate assessment methods for the restored area. This results in low efficiency and poor accuracy in conservation work, failing to meet the principles of "minimal intervention" and "reversibility" in cultural relic protection.

[0005] (II) Technical Solution To achieve the above-mentioned multifunctional repair and accurate detection objectives, the present invention provides the following technical solution: a non-destructive testing and repair device for restoring the painted layers of Han and Tang Dynasty Western Region tomb architecture, comprising a base, an organic body fixedly installed on the top of the base, and a repair mechanism fixedly installed on the outer side of the organic body; The repair mechanism includes a support plate, which is fixedly mounted on the top of the machine body. An extension block is fixedly mounted on the top of the support plate, and a light is fixedly mounted on the inner side of the extension block. A motor is fixedly mounted inside the support plate, and a bearing that is movably connected to the inner side of the support plate is fixedly mounted on the outer side of the motor. A fixing frame is fixedly mounted on the outer end of the bearing. A material hopper is fixedly mounted inside the machine body, and a receiving hopper is fixedly mounted on the right side of the material hopper. A suction machine is fixedly mounted on the top of the receiving hopper, and an inclined tube is fixedly mounted on the bottom of the receiving hopper. A waste residue bin is fixedly mounted on the outer end of the inclined tube. A telescopic motor is fixedly mounted inside the base. A telescopic column is fixedly installed on the top of the telescopic motor, a rotating shaft is fixedly installed on the top of the telescopic column, a first telescopic block is movably installed on the top of the rotating shaft, a detection camera is movably installed on the top side of the telescopic block, a slider is movably installed on the outer side of the first telescopic block, a second telescopic block is movably installed on the outer side of the slider, a movable circular block is movably installed on the outer end of the second telescopic block, a 3D printing repair nozzle is fixedly installed on the outer end of the movable circular block, a sensor is fixedly installed on the outer side of the 3D printing repair nozzle, a fan is fixedly installed on the outer side of the sensor, a duct is fixedly installed on the bottom of the material box, and a sensor is fixedly installed on the inner side of the support plate.

[0006] Preferably, a telescopic platform located on the side of the machine body is fixedly installed on the top of the base, an operating block is fixedly installed on the front of the base, and an operating panel is fixedly installed on the top of the operating block.

[0007] Preferably, the bottom of the base is fixedly equipped with rollers, and the front of the machine body is movably equipped with a switch plate.

[0008] Preferably, a baffle is fixedly installed on the top of the machine body.

[0009] Preferably, the top of the machine body is provided with a suction port adapted to the suction machine.

[0010] Preferably, the roller is an outward-sloping roller.

[0011] Preferably, the outer end of the fan is provided with an air outlet.

[0012] Preferably, the outer side of the first telescopic block is provided with a groove that matches the slider.

[0013] (III) Beneficial Effects Compared with existing technologies, this invention provides a non-destructive testing and restoration device for restoring the painted layers of Han and Tang dynasty Western Region tomb architecture, which has the following beneficial effects: 1. This non-destructive testing and restoration device for the painted layers of Han and Tang Dynasty Western Region tombs utilizes high-precision sensors and 3D-printed repair nozzles to achieve non-destructive testing and precise restoration of defects in the painted layers. The sensors can capture cracks and hollow areas inside the painted layers in real time, and combined with the detection camera to construct a three-dimensional model, visually presenting the damage distribution. The 3D-printed nozzles dynamically adjust the adhesive spray trajectory and dosage based on the model data to ensure that the restoration material matches the composition of the original painted layer. This design effectively avoids secondary damage to cultural relics caused by traditional sampling and analysis. At the same time, it greatly improves work efficiency through automated restoration, significantly reduces human error, and perfectly matches the principle of "minimal intervention" in cultural relic protection.

[0014] 2. This non-destructive testing and restoration device for recreating the painted layers of Han and Tang Dynasty Western Region tombs further optimizes the stability and controllability of the restoration process through multi-mechanism collaborative operation. The telescopic motor and rotating shaft drive the restoration unit to flexibly position itself, adapting to the complex curved surface of the tomb wall. The fan and suction machine work together to remove surface dust and recover residual material before restoration, ensuring adhesion strength. The illumination lamp and sensor monitor the ambient temperature and humidity in real time, ensuring that the curing conditions of the restoration material match the climatic characteristics of the Western Regions. This integrated design not only realizes the integrated process of testing, cleaning, restoration and evaluation, but also significantly improves the reliability of long-term preservation of the painted layers through closed-loop control, meeting the requirements of "reversible" restoration. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional view of the right side of the present invention; Figure 3 This is a rear perspective view of the present invention; Figure 4 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 5 For the present invention Figure 2 Enlarged view at point B in the middle; Figure 6 This is a system flowchart of the present invention.

[0016] In the diagram: 1. Base; 2. Machine body; 3. Repair mechanism; 301. Support plate; 302. Extension block; 303. Illuminator; 304. Motor; 305. Bearing; 306. Fixing frame; 307. Material bin; 308. Receiving bin; 309. Suction machine; 310. Inclined tube; 311. Waste bin; 312. Telescopic motor; 313. Telescopic column; 314. Rotating shaft; 315. Telescopic block; 316. Detection camera; 317. Slider; 318. Second telescopic block; 319. Movable circular block; 320. 3D printing repair nozzle; 321. Sensor; 322. Fan; 323. Conduit; 324. Sensor; 4. Telescopic platform; 5. Operating block; 6. Operating panel; 7. Roller; 8. Switch panel. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-6 A non-destructive testing and repair device for restoring the painted layers of Han and Tang Dynasty Western Region tomb architecture includes a base 1, an organic body 2 fixedly installed on the top of the base 1, and a repair mechanism 3 fixedly installed on the outside of the organic body 2.

[0019] The repair mechanism 3 includes a support plate 301. The support plate 301 is fixedly mounted on the top of the machine body 2. An extension block 302 is fixedly mounted on the top of the support plate 301. A light 303 is fixedly mounted on the inner side of the extension block 302. A motor 304 is fixedly mounted inside the support plate 301. A bearing 305, movably connected to the inner side of the support plate 301, is fixedly mounted on the outer side of the motor 304. A fixing frame 306 is fixedly mounted on the outer end of the bearing 305. A material box 307 is fixedly mounted inside the machine body 2. A receiving box 308 is fixedly mounted on the right side of the material box 307. A suction machine 309 is fixedly installed on the top of the receiving box 308. An inclined tube 310 is fixedly installed on the bottom of the receiving box 308. A waste bin 311 is fixedly installed on the outer end of the inclined tube 310. A telescopic motor 312 is fixedly installed inside the base 1. A telescopic column 313 is fixedly installed on the top of the telescopic motor 312. A rotating shaft 314 is fixedly installed on the top of the telescopic column 313. A first telescopic block 315 is movably installed on the top of the rotating shaft 314. A detection camera 316 is movably installed on the top side of the telescopic block 315. A slider 317 is movably installed on the outer side of the first telescopic block 315. A second telescopic block 318 is movably mounted on the outer side of the slider 317. A movable circular block 319 is movably mounted on the outer end of the second telescopic block 318. A 3D printing repair nozzle 320 is fixedly mounted on the outer end of the movable circular block 319. A sensor 321 is fixedly mounted on the outer side of the 3D printing repair nozzle 320. A fan 322 is fixedly mounted on the outer side of the sensor 321. A conduit 323 is fixedly mounted on the bottom of the material box 307. A sensor 324 is fixedly mounted on the inner side of the support plate 301. Through the coordinated operation of multiple mechanisms, the stability and reliability of the repair process are further optimized. The controllable telescopic motor 312 and rotating shaft 314 drive the repair unit to flexibly position and adapt to the complex curved surface of the tomb wall. The fan 322 and the material suction machine 309 work together to remove surface dust and recover peeling residue before repair, ensuring adhesion strength. The illumination lamp 303 and sensor 324 monitor the ambient temperature and humidity in real time to ensure that the curing conditions of the repair material match the climate characteristics of the Western Regions. This integrated design not only realizes the integrated process of detection, cleaning, repair and evaluation, but also significantly improves the reliability of long-term preservation of the painted layer through closed-loop control, meeting the requirements of "reversible" repair.

[0020] In the implementation of the case, a telescopic platform 4 located on the side of the body 2 is fixedly installed on the top of the base 1, an operation block 5 is fixedly installed on the front of the base 1, and an operation panel 6 is fixedly installed on the top of the operation block 5 to facilitate the operation of various structures.

[0021] The telescopic platform 4 can be flexibly extended and retracted according to the needs of the on-site work space, providing an additional support surface for the device, making it convenient for operators to temporarily place tools or perform auxiliary operations, and enhancing the device's adaptability to operation in the complex environment of the cemetery site.

[0022] The operation panel 6 allows for parameter setting and process control of various mechanisms within the device, such as adjusting the scanning accuracy of the detection camera 316, setting the material spraying rate of the 3D printing repair nozzle 320, and controlling the wind speed and intensity of the fan 322. This enables the entire non-destructive testing and repair process to be digitized and intelligently controlled, ensuring that the restoration of the painted layers of Han and Tang Dynasty Western Region tombs is precise, efficient, and in compliance with cultural relic protection standards.

[0023] In the implementation of the case, the bottom of the base 1 is fixedly equipped with rollers 7, and the front of the machine body 2 is movably equipped with a switch plate 8 to facilitate material feeding.

[0024] Among them, the roller 7 adopts an outward inclined structure design, which not only has good load-bearing performance, but also can move flexibly in uneven ground or narrow passages in the burial area, making it easy for the device to be quickly transferred between different painted restoration points and adapting to the terrain characteristics of the Western Regions burial site.

[0025] The movable switch plate 8 allows for convenient inspection, maintenance, and material replenishment of components such as the material bin 307 and receiving bin 308 inside the machine body 2. It also effectively prevents external dust from entering the machine body, ensuring the cleanliness and stable operation of the core components of the device and providing reliable support for the continuous operation of the painted layer repair work.

[0026] In the implementation of the case, a baffle was fixedly installed on the top of the machine body 2 to prevent waste from falling outside.

[0027] The baffle is made of weather-resistant material, which can effectively block dust and debris falling from the tombs in the Western Regions. At the same time, it provides protection for the top repair mechanism, such as the support plate and extension block, to prevent it from being affected by foreign object impact or dust accumulation, thus avoiding affecting the accuracy of detection and repair.

[0028] The protective function of this baffle ensures the long-term stable operation of the core components on the top of the machine, keeps the inspection camera, lights and other equipment clean and in good working order, and builds the first line of defense for the non-destructive testing and precise repair of the painted layer.

[0029] In the implementation of the case, the top of the machine body 2 is provided with a suction port that is compatible with the suction machine 309, which facilitates the suction of materials.

[0030] The suction port is precisely matched with the suction machine 309, which can efficiently suck up the floating dust and peeling residue on the surface of the painted layer before repair. The residue is then collected into the waste bin through the receiving box and inclined tube, realizing the centralized recycling and standardized treatment of repair waste and avoiding secondary damage to the painted layer caused by pollutant residue.

[0031] The efficient suction function of the suction port, combined with the suction machine, forms a complete waste recycling chain. This not only ensures the cleanliness of the painted layer before restoration to improve the bonding effect, but also fulfills the requirement of "clean operation" in cultural relic protection, laying a clean foundation for subsequent precise restoration.

[0032] In the case implementation, roller 7 is an outward-sloping roller to prevent tipping and enhance grip.

[0033] Among them, the inclined structure design of the outward-sloping roller 7 gives it stronger grip and passability on the sandy and uneven ground of the Western Regions burial area, which can effectively prevent the device from slipping and can flexibly cope with the turning needs of narrow passages, ensuring the smooth movement of the device between different areas of the burial site.

[0034] The special structure of the externally inclined roller 7 solves the problem of movement caused by the complex terrain at the cultural relic protection site, enabling the device to be quickly deployed to various painted restoration points, thus improving the mobility and efficiency of the entire non-destructive testing and restoration operation.

[0035] In the case implementation, the outer end of the fan 322 is provided with an air outlet to facilitate air blowing and dust collection.

[0036] The air outlet features a multi-directional airflow design, which can precisely and directionally blow air onto the surface of the painted layer, effectively removing floating dust and loose debris, while avoiding secondary damage to the fragile painted layer caused by strong winds, thus providing a clean base environment for subsequent repair work.

[0037] The precise air delivery function of the air outlet, combined with the wind speed control of the fan 322, enables non-destructive cleaning before the repair of the painted layer, ensuring the bonding strength between the repair material and the substrate. This is a key pretreatment step for achieving precise repair of the painted layer.

[0038] In the implementation of the case, the outer side of the first telescopic block 315 is provided with a groove that matches the slider 317. Through high-precision sensors and 3D printing repair nozzles 320, non-destructive detection and precise repair of defects in the painted layer are achieved. Sensors 321 can capture cracks and hollow areas inside the painted layer in real time. Combined with the detection camera 316, a three-dimensional model is constructed to intuitively present the damage distribution. The 3D printing nozzle dynamically adjusts the adhesive spray trajectory and dosage according to the model data to ensure that the repair material matches the composition of the original painted layer. This design effectively avoids secondary damage to cultural relics caused by traditional sampling and analysis. At the same time, it greatly improves work efficiency through automated repair and significantly reduces human error, perfectly matching the principle of "minimal intervention" in cultural relic protection.

[0039] The groove and slider 317 are precisely matched, providing a stable linear movement track for the slider and subsequent connected components such as the second telescopic block 318 and the 3D printing repair nozzle 320. This allows the repair execution unit to smoothly adjust its position along the surface of the painted layer, ensuring that the 3D printing nozzle accurately covers the damaged area.

[0040] Guided by the chute and combined with the telescopic and rotating mechanism, the repair execution unit can move flexibly in space, allowing the 3D printing repair nozzle to accurately repair damage of different locations and shapes according to the three-dimensional damage model of the painted layer, thus ensuring the spatial accuracy and overall effect of the repair operation.

[0041] When implementing this procedure, please follow these steps: 1) First, start the device through the operation panel 6, use the detection camera 316 and sensor 321 to scan the painted layer, build a three-dimensional model and identify the damaged area; 2) Then, based on the model data, adjust the telescopic motor 312, the rotating shaft 314, and the telescopic block 315 to accurately position the 3D printing repair nozzle 320 to the damaged area. 3) Restart the blower 322 and the suction machine 309, clean the repair area and recycle the waste, and then spray the matching repair material through the 3D printing repair nozzle 320; 4) Finally, the repair effect is evaluated in real time by sensor 324 and detection camera 316 to ensure that the repair layer is harmonious and unified with the original painted layer.

[0042] In summary, this non-destructive testing and restoration device for reconstructing the painted layers of Han and Tang Dynasty Western Region tombs achieves non-destructive testing and precise restoration of defects in the painted layers through high-precision sensors and 3D-printed repair nozzles 320. Sensor 321 can capture cracks and hollow areas inside the painted layers in real time, and combined with the detection camera 316 to construct a three-dimensional model, intuitively presenting the damage distribution. The 3D-printed nozzle dynamically adjusts the adhesive spray trajectory and dosage according to the model data to ensure that the restoration material matches the composition of the original painted layer. This design effectively avoids secondary damage to cultural relics caused by traditional sampling and analysis. At the same time, it greatly improves work efficiency through automated restoration and significantly reduces human error, perfectly conforming to the principle of "minimal intervention" in cultural relic protection.

[0043] Furthermore, through the collaborative operation of multiple mechanisms, the stability and controllability of the restoration process are further optimized. The telescopic motor 312 and the rotating shaft 314 drive the restoration unit to flexibly position itself and adapt to the complex curved surface of the tomb wall. The fan 322 and the material suction machine 309 work together to remove surface dust and recover residual material before restoration, ensuring bonding strength. The illumination lamp 303 and the sensor 324 monitor the ambient temperature and humidity in real time to ensure that the curing conditions of the restoration material match the climate characteristics of the Western Regions. This integrated design not only realizes the integrated process of detection, cleaning, restoration and evaluation, but also significantly improves the reliability of long-term preservation of the painted layer through closed-loop control, meeting the requirements of "reversible" restoration.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A non-destructive testing and restoration device for restoring the painted layers of Han and Tang Dynasty Western Region tomb architecture, comprising a base (1), characterized in that: An organism (2) is fixedly installed on the top of the base (1), and a repair mechanism (3) is fixedly installed on the outside of the organism (2). The repair mechanism (3) includes a support plate (301). The support plate (301) is fixedly installed on the top of the body (2). An extension block (302) is fixedly installed on the top of the support plate (301). A lamp (303) is fixedly installed on the inner side of the extension block (302). A motor (304) is fixedly installed inside the support plate (301). A bearing (305) that is movably connected to the inner side of the support plate (301) is fixedly installed on the outer side of the motor (304). 5) A fixed frame (306) is fixedly installed at the outer end of the machine body (2). A material box (307) is fixedly installed inside the machine body (2). A receiving box (308) is fixedly installed on the right side of the material box (307). A suction machine (309) is fixedly installed on the top of the receiving box (308). An inclined tube (310) is fixedly installed at the bottom of the receiving box (308). A waste residue box (311) is fixedly installed at the outer end of the inclined tube (310). A telescopic motor (312) is fixedly installed inside the base (1). A telescopic column (313) is fixedly installed on the top of the telescopic motor (312), a rotating shaft (314) is fixedly installed on the top of the telescopic column (313), a first telescopic block (315) is movably installed on the top of the rotating shaft (314), a detection camera (316) is movably installed on the top side of the telescopic block (315), a slider (317) is movably installed on the outer side of the first telescopic block (315), and a second telescopic block (318) is movably installed on the outer side of the slider (317). A movable circular block (319) is movably installed at the outer end of the second telescopic block (318). A 3D printing repair nozzle (320) is fixedly installed at the outer end of the movable circular block (319). A sensor (321) is fixedly installed on the outer side of the 3D printing repair nozzle (320). A fan (322) is fixedly installed on the outer side of the sensor (321). A conduit (323) is fixedly installed at the bottom of the material box (307). A sensor (324) is fixedly installed on the inner side of the support plate (301).

2. The non-destructive testing and restoration device for restoring the painted layers of Han and Tang Dynasty Western Region tomb architecture according to claim 1, characterized in that: The top of the base (1) is fixedly installed with a telescopic platform (4) located on the side of the body (2), and the front of the base (1) is fixedly installed with an operating block (5). The top of the operating block (5) is fixedly installed with an operating panel (6).

3. The non-destructive testing and restoration device for restoring the painted layers of Han and Tang Dynasty Western Region tomb architecture according to claim 1, characterized in that: The bottom of the base (1) is fixedly equipped with a roller (7), and the front of the body (2) is movably equipped with a switch plate (8).

4. The non-destructive testing and restoration device for restoring the painted layers of Han and Tang Dynasty Western Region tomb architecture according to claim 1, characterized in that: A baffle is fixedly installed on the top of the body (2).

5. The non-destructive testing and restoration device for restoring the painted layers of Han and Tang Dynasty Western Region tomb architecture according to claim 1, characterized in that: The top of the machine body (2) is provided with a suction port that is compatible with the suction machine (309).

6. The non-destructive testing and restoration device for restoring the painted layers of Han and Tang Dynasty Western Region tomb architecture according to claim 1, characterized in that: The roller (7) is an outward-sloping roller.

7. The non-destructive testing and restoration device for restoring the painted layers of Han and Tang Dynasty Western Region tomb architecture according to claim 1, characterized in that: The fan (322) has an air outlet at its outer end.

8. The non-destructive testing and restoration device for restoring the painted layers of Han and Tang Dynasty Western Region tomb architecture according to claim 1, characterized in that: The outer side of the first telescopic block (315) is provided with a groove that is compatible with the slider (317).

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