Surrounding type shooting cultural relic three-dimensional scanning equipment

Abstract

The invention is applied to the technical field of cultural relic protection, and discloses surrounding type shooting cultural relic three-dimensional scanning equipment which comprises a base, a mounting plate is fixedly arranged on the upper surface of the base, a top plate is fixedly connected to the upper end of the mounting plate, and a rotating center displacement rod is mounted on the outer surface of the top plate; a sliding seat is arranged on the upper surfaces of the fixed ring, the first movable ring and the second movable ring, a rotating function plate is mounted at the upper end of the sliding seat, and scanning equipment is fixedly arranged on the upper surface of the function plate. According to the cultural relic three-dimensional scanning equipment capable of shooting in a surrounding manner, in the aspect of continuous rotary scanning, a center displacement rod is driven by a center motor to rotate, so that a fixed ring, a first movable ring and a second movable ring integrally ascend and descend; the function plate and the scanning device installed on the function plate are driven to continuously move in a surrounding mode along the arc-shaped fixed ring, the first movable ring and the second movable ring, and continuous rotating scanning of cultural relics is achieved.

Description

Technical Field

[0001] This invention relates to the field of cultural relic protection technology, specifically to a surround-type stereoscopic scanning device for cultural relics. Background Technology

[0002] In today's era of global digitalization, the digital protection and inheritance of cultural heritage has become an important issue. As the core means of digitizing cultural heritage, 3D scanning technology can accurately record information such as the appearance and texture details of cultural relics in the form of three-dimensional data, providing accurate original data references for cultural relic restoration, assisting experts in conducting in-depth cultural relic research, and laying the foundation for new forms of cultural dissemination such as virtual museums and digital exhibitions. Its importance is self-evident. However, current cultural relic scanning equipment on the market has revealed many limitations in practical applications. Most traditional scanning equipment adopts a segmented scanning method and cannot achieve continuous rotational scanning. This means that when scanning large or irregularly shaped cultural relics, it is necessary to frequently adjust the position and angle of the equipment. This not only consumes a lot of time and manpower and has low scanning efficiency, but also easily creates scanning blind spots, making it difficult to obtain complete data from all aspects of the cultural relic. During the scanning process, existing equipment is difficult to adjust the angle quickly. This problem is particularly prominent when facing cultural relics of different shapes and structures. The forms of cultural relics vary greatly, from complex bronze decorations to uniquely shaped ceramic vessels. If the scanning equipment cannot adjust the angle quickly and flexibly, it will be unable to accurately capture the features of various parts of the cultural relic and will be unable to meet diverse scanning needs. Furthermore, existing equipment generally lacks effective support for the scanning device during the scanning process. During long-term scanning, even slight shaking of the device can significantly affect the scanning accuracy, causing deviations and distortions in the scanned data. When scanning some precious cultural relics, due to the lack of stable support, the scanning device shakes during long-term operation, resulting in a rough surface and blurred details in the final 3D model, which seriously affects the accuracy and usability of the data. These shortcomings severely restrict the development and application of 3D scanning technology for cultural relics. Therefore, developing a new type of 3D scanning device for cultural relics that can overcome the above problems and achieve continuous scanning, rapid angle adjustment, and stable support is of great practical significance. Summary of the Invention

[0003] The purpose of this invention is to provide a surround-type stereoscopic scanning device for cultural relics, in order to solve the problems mentioned in the background art, such as the inability of traditional scanning devices to achieve continuous rotational scanning, difficulty in quickly adjusting the angle, and lack of effective support, resulting in low scanning efficiency, incomplete data, and insufficient accuracy.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a surround-type stereoscopic scanning device for cultural relics, comprising a base, an mounting plate fixedly disposed on the upper surface of the base, a top plate fixedly connected to the upper end of the mounting plate, a rotating central displacement rod mounted on the outer surface of the top plate, a central motor fixedly disposed on the upper surface of the top plate, a sliding rod fixedly connected between the lower surface of the top plate and the upper surface of the base, a support rod fixedly disposed on the side surface of the base, a sliding sliding plate mounted on the outer surface of the sliding rod, a fixed ring fixedly connected to the end of the sliding plate away from the mounting plate, a first movable ring and a second movable ring rotatably disposed at both ends of the fixed ring, a plug-in rod fixedly disposed on the lower surface of one end of the first movable ring, a plug-in frame fixedly disposed on the lower surface of one end of the second movable ring, a sliding seat disposed on the upper surface of the fixed ring, the first movable ring and the second movable ring, a rotating functional plate mounted on the upper end of the sliding seat, and a scanning device fixedly disposed on the upper surface of the functional plate; A rotating side support wheel is installed on the upper outer surface of the sliding seat, and a rotating guide wheel is installed on the lower end of the sliding seat. A displacement motor is fixedly installed on the lower surface of the end of the functional plate facing the inner side of the fixed ring, the first movable ring, and the second movable ring. A displacement gear is fixedly connected to the lower end of the output shaft of the displacement motor. A rotating balance connecting rod and an angle connecting rod are installed on the lower surface of the functional plate. A first relay rod is installed at the lower end of the angle connecting rod. Displacement tooth blocks are fixedly provided on the inner surfaces of the fixed ring, the first movable ring, and the second movable ring. A displacement groove, a guide groove, and a limiting slide groove are opened on the upper surface of the fixed ring, the first movable ring, and the second movable ring. A sliding limiting connecting rod is installed inside the limiting slide groove. A second relay rod is installed at the lower end of the balance connecting rod. A support rod is engaged with the upper surface of the support rod, a rotating lateral displacement rod is installed on the outer surface of the top plate, a support plate is installed on the outer surface of the lateral displacement rod, and a insertion groove is opened on one side of the outer surface of the support plate.

[0005] Preferably, the lower end of the central displacement rod is rotatably connected to the base, and the upper end of the central displacement rod is fixedly connected to the lower end of the output shaft of the central motor. The central displacement rod and the sliding plate are threaded together.

[0006] By adopting the above technical solution, the central displacement rod is driven to rotate by the central motor, and the sliding plate is moved up and down along the sliding rod by the thread transmission principle. This allows for the adjustment of the overall height of the fixed ring, the first movable ring, and the second movable ring, so as to meet the scanning requirements of cultural relics of different heights and at the same time ensure the stability of the structure during the lifting process.

[0007] Preferably, the fixed ring, the first movable ring, and the second movable ring are all arc-shaped, and the fixed ring, the first movable ring, and the second movable ring are concentrically arranged. The first movable ring and the second movable ring are installed by engaging with a plug rod and a plug bracket, and the plug rod and the plug bracket are fixedly connected by bolts.

[0008] By adopting the above technical solution, the arc-shaped concentric structure enables the fixed ring, the first movable ring, and the second movable ring to form a complete surrounding track, which facilitates the continuous rotation and scanning of the scanning equipment along the track. The locking design of the plug rod and the plug frame, as well as the bolt fixing design, realizes the detachable connection between the movable ring and the fixed ring, which facilitates the installation, debugging, and maintenance of the equipment, while ensuring the integrity and stability of the surrounding structure.

[0009] Preferably, the side support wheels are inclined and symmetrically arranged on both sides of the upper end of the sliding seat, and the outer surface of the side support wheels is in contact with the inner surface of the guide groove. The guide wheels are symmetrically arranged on both sides of the lower end of the sliding seat, and the outer surface of the guide wheels is in contact with the inner surface of the lower end of the displacement groove.

[0010] The above technical solution, with its fitting design between the side support wheel and the guide groove, and between the guide wheel and the displacement groove, provides multi-directional support and guiding force for the sliding seat and the functional plate, ensuring that they remain stable when moving along the track and reducing swaying. The inclined side support wheel can further enhance the lateral constraint on the sliding seat and improve the stability and accuracy of the movement process.

[0011] Preferably, the displacement gear is meshed with the fixed ring, the first movable ring and the second movable ring through a displacement tooth block, and the displacement gear and the displacement tooth block are in clearance fit, and the displacement tooth block is a longitudinal strip design.

[0012] By adopting the above technical solution, the meshing transmission of gears and tooth blocks realizes the stable transmission of power from the displacement motor to the functional board, driving the scanning equipment to move continuously around the track. The clearance fit and the design of the long strip-shaped displacement tooth block allow the displacement gear to maintain meshing with the tooth block when the functional board is adjusting the angle, ensuring the continuity of the scanning action during the angle adjustment process.

[0013] Preferably, the angle connecting rod is threaded to the first relay rod, and the second relay rod is threaded to the balance connecting rod. Both ends of the first and second relay rods are threaded.

[0014] By adopting the above technical solution, the tilt angle of the function board can be quickly changed by rotating the first and second relay rods. The reliability of the threaded connection ensures the structural stability after the angle is adjusted. At the same time, it allows for flexible adjustment of the scanning angle according to the shape of the cultural relic, improving the adaptability of the equipment to cultural relics with complex shapes.

[0015] Preferably, the lower end of the lateral displacement rod is rotatably connected to the base, and the lateral displacement rod is threadedly connected to the support plate, and the outer surface of the support plate is in contact with the outer surface of the mounting plate.

[0016] Using the above technical solution, the threaded transmission structure between the side displacement rod and the support plate allows for precise adjustment of the support plate's height by rotating the side displacement rod. The conformal guiding design between the support plate and the mounting plate ensures a smooth lifting process, providing a reliable height adjustment function for the auxiliary support structure and adapting to the scanning needs of artifacts of different sizes.

[0017] Preferably, the insertion slots are formed on the outer surface of one end of the two support plates facing each other, and both insertion slots are inclined towards the fixing ring.

[0018] By adopting the above technical solution, the inclined insertion groove design facilitates the snap-fit ​​installation of the support rod and enhances the stability of the fixed ring, the first movable ring, and the second movable ring.

[0019] Compared with the prior art, the beneficial effects of the present invention are: the surround-type stereoscopic scanning device for cultural relics: 1. In terms of continuous rotational scanning, the central displacement rod is driven to rotate by the central motor. Since the central displacement rod is threadedly connected to the sliding plate, it can drive the sliding plate to move up and down along the sliding rod, thereby causing the fixed ring, the first movable ring and the second movable ring to rise and fall as a whole. At the same time, the output shaft of the displacement motor drives the displacement gear to rotate. The displacement gear meshes with the displacement tooth blocks on the inner side of the fixed ring, the first movable ring and the second movable ring, driving the function plate and the scanning device installed on it to continuously rotate around the arc-shaped fixed ring, the first movable ring and the second movable ring, realizing continuous rotational scanning of cultural relics. Compared with traditional segmented scanning, it greatly improves scanning efficiency and avoids scanning blind spots, and can completely acquire all-round data of cultural relics. 2. For rapid angle adjustment, by changing the threaded state of the angle connecting rod and the first relay rod threaded with the limit connecting rod on the lower surface of the function plate, the angle of the function plate and the scanning equipment can be quickly changed. It can flexibly adapt to the scanning needs of cultural relics of different shapes and structures, and accurately capture the features of various parts of the cultural relics. Whether it is a complex bronze decoration or a uniquely shaped ceramic vessel, it can be quickly adjusted to a suitable angle to achieve accurate scanning. 3. In terms of stable support, the outer surface of the side support wheel at the upper end of the sliding seat is in contact with the inner surface of the guide groove, and the outer surface of the guide wheel at the lower end is in contact with the inner surface of the lower end of the displacement groove. This provides stable support and guidance for the sliding seat and the functional plate. At the same time, the limiting slide groove and the limiting connecting rod, the balancing connecting rod and the second relay rod further enhance the stability of the overall structure, effectively reducing the shaking of the equipment during scanning, avoiding deviations and distortions in the scanning data caused by vibration, ensuring that the generated 3D model is accurate and detailed, and improving the accuracy and usability of the scanning data. In addition, the support rod that is snapped on the support rod, as well as the cooperation between the side displacement rod and the support plate, can also provide additional support and auxiliary adjustment functions for the equipment, further improving the stability and practicality of the equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the overall working state of the present invention; Figure 3 This is a three-dimensional structural diagram of the fixed ring, the first movable ring, and the second movable ring of the present invention in their connected and unfolded state; Figure 4 This is a three-dimensional structural diagram of the connection between the sliding plate, the fixed ring, the first movable ring, and the second movable ring of the present invention; Figure 5 This is a three-dimensional structural diagram of the connection between the first movable ring, the second movable ring, the plug-in rod, and the plug-in frame of the present invention. Figure 6 This is a three-dimensional structural diagram of the connection between the fixing ring, the displacement tooth block, and the displacement groove of the present invention. Figure 7 This is a three-dimensional structural diagram of the cross-sectional view of the sliding seat, side support wheel, and guide wheel connection of the present invention; Figure 8 This is a three-dimensional structural diagram of the cross-sectional view of the displacement groove, guide groove, and limiting slide groove of the present invention; Figure 9 This is a three-dimensional structural diagram of the connection between the sliding seat, side support wheel, and guide wheel of the present invention; Figure 10 This is a three-dimensional structural diagram of the cross-sectional view of the connection between the balance connecting rod, the limiting connecting rod, and the second relay rod of the present invention.

[0021] In the diagram: 1. Base; 2. Mounting plate; 3. Top plate; 4. Center displacement rod; 5. Center motor; 6. Sliding rod; 7. Support rod; 8. Sliding plate; 9. Fixed ring; 10. First movable ring; 11. Second movable ring; 12. Plug-in rod; 13. Plug-in bracket; 14. Sliding seat; 15. Side support wheel; 16. Guide wheel; 17. Functional plate; 18. Displacement motor; 19. Displacement gear; 20. Balance connecting rod; 21. Angle connecting rod; 22. First relay rod; 23. Displacement tooth block; 24. Displacement groove; 25. Guide groove; 26. Limiting slide groove; 27. Limiting connecting rod; 28. Second relay rod; 29. ​​Support rod; 30. Side displacement rod; 31. Support plate; 32. Plug-in groove. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-10 The present invention provides a technical solution: a surround-type stereoscopic scanning device for cultural relics.

[0024] Example 1: This example discloses: a base 1, an mounting plate 2 fixedly mounted on the upper surface of the base 1, a top plate 3 fixedly connected to the upper end of the mounting plate 2, a rotating central displacement rod 4 mounted on the outer surface of the top plate 3, a central motor 5 fixedly mounted on the upper surface of the top plate 3, a sliding rod 6 fixedly connected between the lower surface of the top plate 3 and the upper surface of the base 1, a support rod 7 fixedly mounted on the side surface of the base 1, a sliding sliding plate 8 mounted on the outer surface of the sliding rod 6, a fixed ring 9 fixedly connected to the end of the sliding plate 8 away from the mounting plate 2, a first movable ring 10 and a second movable ring 11 rotatably mounted on both ends of the fixed ring 9, a plug-in rod 12 fixedly mounted on the lower surface of one end of the first movable ring 10, a plug-in bracket 13 fixedly mounted on the lower surface of one end of the second movable ring 11, a sliding seat 14 mounted on the upper surface of the fixed ring 9, the first movable ring 10 and the second movable ring 11, and a rotating functional plate 17 mounted on the upper end of the sliding seat 14, and a scanning device fixedly mounted on the upper surface of the functional plate 17; The lower end of the center displacement rod 4 is rotatably connected to the base 1, and the upper end of the center displacement rod 4 is fixedly connected to the lower end of the output shaft of the center motor 5. The center displacement rod 4 and the sliding plate 8 are threadedly connected. The fixed ring 9, the first movable ring 10 and the second movable ring 11 are all arc-shaped, and the fixed ring 9, the first movable ring 10 and the second movable ring 11 are concentrically arranged. The first movable ring 10 and the second movable ring 11 are installed by engaging the plug rod 12 and the plug bracket 13, and the plug rod 12 and the plug bracket 13 are fixedly connected by bolts. The central motor 5 serves as the power source. When the central motor 5 is started, its output shaft drives the central displacement rod 4 to rotate. Since the central displacement rod 4 and the sliding plate 8 are threadedly connected, according to the principle of threaded transmission, the rotation of the central displacement rod 4 is converted into the vertical linear movement of the sliding plate 8 along the sliding rod 6. The sliding plate 8 drives the fixed ring 9 to move. The first movable ring 10 and the second movable ring 11, which are rotatably installed at both ends of the fixed ring 9, are fixed by the engagement of the plug rod 12 and the plug bracket 13 and the bolts, forming an arc-shaped ring structure that can be raised and lowered as a whole. This structure can adjust the height of the scanning equipment to meet the scanning needs of cultural relics of different heights, and adjust the scanning equipment to a suitable height position to prepare for subsequent scanning work. The support rod 7 serves to support the base 1, the mounting plate 2 and the top plate 3, and ensure the stability of the fixed ring 9, the first movable ring 10 and the second movable ring 11 during the raising and lowering process.

[0025] Example 2: This example is based on Example 1. A rotating side support wheel 15 is installed on the upper outer surface of the sliding seat 14, and a rotating guide wheel 16 is installed on the lower end of the sliding seat 14. A displacement motor 18 is fixedly installed on the lower surface of the end of the function plate 17 facing the inner side of the fixed ring 9, the first movable ring 10, and the second movable ring 11. A displacement gear 19 is fixedly connected to the lower end of the output shaft of the displacement motor 18. A rotating balance connecting rod 20 and an angle connecting rod 21 are installed on the lower surface of the function plate 17. A first relay rod 22 is installed at the lower end of the angle connecting rod 21. Displacement tooth blocks 23 are fixedly provided on the inner surfaces of the fixed ring 9, the first movable ring 10, and the second movable ring 11. A displacement groove 24, a guide groove 25, and a limiting slide groove 26 are opened on the upper surfaces of the fixed ring 9, the first movable ring 10, and the second movable ring 11. A sliding limiting connecting rod 27 is installed inside the limiting slide groove 26. A second relay rod 28 is installed at the lower end of the balance connecting rod 20. The side support wheel 15 is inclined and symmetrically arranged on both sides of the upper end of the sliding seat 14. The outer surface of the side support wheel 15 is in contact with the inner surface of the guide groove 25. The guide wheel 16 is symmetrically arranged on both sides of the lower end of the sliding seat 14. The outer surface of the guide wheel 16 is in contact with the inner surface of the lower end of the displacement groove 24. The displacement gear 19 is meshed with the fixed ring 9, the first movable ring 10 and the second movable ring 11 through the displacement tooth block 23, and the displacement gear 19 and the displacement tooth block 23 are in clearance fit, and the displacement tooth block 23 is a longitudinal strip design. The angle connecting rod 21 is threaded to the first relay rod 22, and the second relay rod 28 is threaded to the balance connecting rod 20. Both ends of the first relay rod 22 and the second relay rod 28 are threaded. After the displacement motor 18 is started, its output shaft drives the displacement gear 19 to rotate. The displacement gear 19 meshes with the displacement tooth block 23 on the inner side of the fixed ring 9, the first movable ring 10 and the second movable ring 11. Based on the gear transmission principle, the rotational motion of the displacement motor 18 is converted into the circumferential motion of the functional board 17 and the scanning device along the fixed ring 9, the first movable ring 10 and the second movable ring 11, so as to realize the circumferential scanning of the cultural relics. Meanwhile, the outer surface of the side support wheel 15 is in contact with the inner surface of the guide groove 25, and the outer surface of the guide wheel 16 is in contact with the inner surface of the lower end of the displacement groove 24. During the movement of the sliding seat 14, the side support wheel 15 and the guide wheel 16 play a supporting and guiding role, ensuring the stability and accuracy of the movement of the sliding seat 14 and the functional plate 17. Furthermore, when it is necessary to adjust the angle of the scanning device, since the angle connecting rod 21 is threadedly connected to the first relay rod 22 and the second relay rod 28 is threadedly connected to the balance connecting rod 20, the first relay rod 22 and the second relay rod 28 are rotated to connect to the limiting connecting rod 27 in the limiting slide groove 26, thereby achieving the purpose of adjusting the angle of the function plate 17. This enables the rapid adjustment of the angle of the function plate 17 and the scanning device to meet the scanning needs of cultural relics of different shapes. When both limit connecting rods 27 on both sides are connected to the second relay rod 28, the function plate 17 is in a horizontal state. When one limit connecting rod 27 is connected to the first relay rod 22, the function plate 17 tilts towards the limit connecting rod 27 connected to the first relay rod 22. At the same time, since the displacement tooth block 23 is designed as a long strip and the displacement gear 19 and the displacement tooth block 23 are in clearance fit, the displacement gear 19 can still maintain meshing connection with the displacement tooth block 23 when the angle of the function plate 17 changes.

[0026] Example 3: This example is based on Example 1 and Example 2: A support rod 29 is engaged and installed on the upper surface of the support rod 7, a rotating lateral displacement rod 30 is installed on the outer surface of the top plate 3, a support plate 31 is installed on the outer surface of the lateral displacement rod 30, and a plug groove 32 is opened on one side of the outer surface of the support plate 31. The lower end of the side displacement rod 30 is rotatably connected to the base 1, and the side displacement rod 30 is threadedly connected to the support plate 31, and the outer surface of the support plate 31 is in contact with the outer surface of the mounting plate 2. The insertion slots 32 are formed on the outer surfaces of the two supporting plates 31 facing each other, and both insertion slots 32 are inclined towards the fixing ring 9. Rotate the side displacement rod 30. Since the side displacement rod 30 is threadedly connected to the support plate 31, the support plate 31 can move up and down along the side displacement rod 30 according to the threaded transmission. The outer surface of the support plate 31 fits against the outer surface of the mounting plate 2, which plays a guiding role. At the same time, the insertion grooves 32 opened on the two support plates 31 and inclined towards the fixing ring 9 can be used to engage the support rod 29. During the scanning process, the support rod 29 is engaged in the insertion slot 32, forming an auxiliary support structure together with the support plate 31 and the side displacement rod 30. This provides additional support for the fixed ring 9, the first movable ring 10, and the second movable ring 11, enhancing the overall stability of the equipment and reducing the impact of equipment shaking on scanning accuracy. Furthermore, by adjusting the side displacement rod 30 to change the height of the support plate 31, it can be adapted to cultural relics of different sizes and shapes, further improving the practicality and adaptability of the equipment.

[0027] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above are merely specific embodiments of the present invention and do not limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the protection scope of the present invention.

Claims

1. A surround-type stereoscopic scanning device for cultural relics, comprising a base (1), wherein a mounting plate (2) is fixedly disposed on the upper surface of the base (1), and a top plate (3) is fixedly connected to the upper end of the mounting plate (2), characterized in that: A rotating center displacement rod (4) is installed on the outer surface of the top plate (3), and a center motor (5) is fixedly installed on the upper surface of the top plate (3). A sliding rod (6) is fixedly connected between the lower surface of the top plate (3) and the upper surface of the base (1). A support rod (7) is fixedly installed on the side surface of the base (1). A sliding sliding plate (8) is installed on the outer surface of the sliding rod (6), and a fixing ring (9) is fixedly connected to the end of the sliding plate (8) away from the mounting plate (2). The two ends of the fixing ring (9) rotate... The device is equipped with a first movable ring (10) and a second movable ring (11). A plug rod (12) is fixedly provided on the lower surface of one end of the first movable ring (10), and a plug bracket (13) is fixedly provided on the lower surface of one end of the second movable ring (11). A sliding seat (14) is provided on the upper surface of the fixed ring (9), the first movable ring (10), and the second movable ring (11). A rotating function plate (17) is installed on the upper end of the sliding seat (14), and a scanning device is fixedly provided on the upper surface of the function plate (17).

2. The surround-type stereoscopic scanning device for cultural relics according to claim 1, characterized in that: A rotating side support wheel (15) is installed on the upper outer surface of the sliding seat (14), and a rotating guide wheel (16) is installed on the lower end of the sliding seat (14). A displacement motor (18) is fixedly installed on the lower surface of one end of the functional plate (17) facing the inner side of the fixed ring (9), the first movable ring (10), and the second movable ring (11). A displacement gear (19) is fixedly connected to the lower end of the output shaft of the displacement motor (18). A rotating balance connecting rod (20) and an angle connecting rod (21) are installed on the lower surface of the functional plate (17). The angle... The lower end of the connecting rod (21) is equipped with a first relay rod (22). The inner surfaces of the fixed ring (9), the first movable ring (10) and the second movable ring (11) are fixedly provided with displacement teeth (23). The upper surfaces of the fixed ring (9), the first movable ring (10) and the second movable ring (11) are provided with displacement grooves (24), guide grooves (25) and limiting slide grooves (26). The inside of the limiting slide groove (26) is equipped with a sliding limiting connecting rod (27). The lower end of the balance connecting rod (20) is equipped with a second relay rod (28).

3. The surround-type stereoscopic scanning device for cultural relics according to claim 1, characterized in that: The upper surface of the support rod (7) is fitted with a support rod (29), the outer surface of the top plate (3) is fitted with a rotating lateral displacement rod (30), the outer surface of the lateral displacement rod (30) is fitted with a support plate (31), and a plug groove (32) is opened on one side of the outer surface of the support plate (31).

4. The surround-type stereoscopic scanning device for cultural relics according to claim 1, characterized in that: The lower end of the central displacement rod (4) is rotatably connected to the base (1), and the upper end of the central displacement rod (4) is fixedly connected to the lower end of the output shaft of the central motor (5). The central displacement rod (4) and the sliding plate (8) are threadedly connected.

5. The surround-type stereoscopic scanning device for cultural relics according to claim 1, characterized in that: The fixed ring (9), the first movable ring (10) and the second movable ring (11) are all arc-shaped, and the fixed ring (9), the first movable ring (10) and the second movable ring (11) are concentrically arranged. The first movable ring (10) and the second movable ring (11) are installed by engaging the plug rod (12) and the plug bracket (13), and the plug rod (12) and the plug bracket (13) are fixedly connected by bolts.

6. The surround-type stereoscopic scanning device for cultural relics according to claim 2, characterized in that: The side support wheel (15) is inclined and is symmetrically arranged on both sides of the upper end of the sliding seat (14). The outer surface of the side support wheel (15) is in contact with the inner surface of the guide groove (25). The guide wheel (16) is symmetrically arranged on both sides of the lower end of the sliding seat (14). The outer surface of the guide wheel (16) is in contact with the inner surface of the lower end of the displacement groove (24).

7. The surround-type stereoscopic scanning device for cultural relics according to claim 2, characterized in that: The displacement gear (19) is connected to the fixed ring (9), the first movable ring (10) and the second movable ring (11) through the displacement tooth block (23), and the displacement gear (19) and the displacement tooth block (23) are in clearance fit, and the displacement tooth block (23) is a longitudinal strip design.

8. The surround-type stereoscopic scanning device for cultural relics according to claim 2, characterized in that: The angle connecting rod (21) is threaded to the first relay rod (22), and the second relay rod (28) is threaded to the balance connecting rod (20). Both ends of the first relay rod (22) and the second relay rod (28) are threaded.

9. A surround-type stereoscopic scanning device for cultural relics according to claim 3, characterized in that: The lower end of the side displacement rod (30) is rotatably connected to the base (1), and the side displacement rod (30) is threadedly connected to the support plate (31), and the outer surface of the support plate (31) is in contact with the outer surface of the mounting plate (2).

10. A surround-type stereoscopic scanning device for cultural relics according to claim 3, characterized in that: The insertion slots (32) are opened on the outer surface of the opposite end of the two support plates (31), and both insertion slots (32) are inclined towards the fixing ring (9).

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