Acquisition equipment for three-dimensional modeling of immovable cultural relics

Abstract

The utility model relates to the technical field of cultural relic data acquisition, and discloses an acquisition device for three-dimensional modeling of an immovable cultural relic, which comprises a counterweight support, universal wheels are fixedly mounted at the bottom of the counterweight support, and a push-pull frame is fixedly mounted on the side surface of the counterweight support; and the height adjusting mechanism is arranged at the top of the counterweight support, and the height adjusting mechanism is used for adjusting the scanning height. Through the design of the winding and unwinding motor, the winding drum can be driven to rotate at a low speed, so that a rope can be wound or released, the lifting seat is promoted to slide on the outer walls of the lower supporting rod, the splicing rod and the upper supporting rod, the function of automatically adjusting the height of the three-dimensional laser scanner is realized, the data acquisition efficiency is improved, and the working efficiency is improved. And meanwhile, the problem of easy shaking caused by hand holding is avoided, the stability of the three-dimensional laser scanner during data acquisition is improved, and the data acquisition effect is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of cultural relic data acquisition technology, specifically, to an acquisition device for three-dimensional modeling of immovable cultural relics. Background Technology

[0002] Immovable cultural relics refer to cultural relics with historical, artistic, or scientific value that cannot be moved while maintaining their integrity and authenticity. Data acquisition for 3D modeling of cultural relics is typically carried out using a 3D laser scanner. The working principle of a 3D laser scanner is based on laser ranging technology and spatial coordinate positioning technology. By rapidly acquiring the geometric information of the object's surface, it generates high-precision 3D point cloud data, suitable for detailed modeling of complex structures such as ancient stone carvings.

[0003] Most existing 3D laser scanners are handheld. Ancient stone carvings and other cultural relics are generally quite tall, and handheld scanning will cause the staff to exert a lot of physical effort, affecting the efficiency of data collection. In addition, the user's hand will inevitably move during the collection process, resulting in poor collection stability and easily affecting the collection results. Utility Model Content

[0004] The purpose of this invention is to provide a data acquisition device for 3D modeling of immovable cultural relics, which solves the problems of low efficiency and poor stability of data acquisition when using handheld 3D laser scanners in the prior art.

[0005] This utility model provides the following technical solution: a data acquisition device for three-dimensional modeling of immovable cultural relics, comprising:

[0006] A counterweight support, wherein a caster wheel is fixedly installed at the bottom of the counterweight support and a push-pull bracket is fixedly installed on the side of the counterweight support;

[0007] A height adjustment mechanism is provided, which is located on the top of the counterweight support, and is used to adjust the scanning height.

[0008] An elevation angle adjustment mechanism is provided on the height adjustment mechanism and is used to adjust the elevation angle of the scan.

[0009] As a preferred embodiment of the above technical solution, the height adjustment mechanism includes a base plate and a top plate. A raised frame is fixedly installed on the top of the top plate. A winding drum is rotatably connected to the outer wall of the inner side of the raised frame. A take-up and discharge motor is fixedly installed on the outer wall of the raised frame. The output shaft of the take-up and discharge motor is fixedly connected to the end of the winding drum. A rope is fixedly connected to the outer wall of the winding drum.

[0010] Through the above technical solution, the design of the raised frame, the retractor and the winding drum allows for control of the rope's release and take-up, thus enabling the adjustment of the scanning height.

[0011] As a preferred embodiment of the above technical solution, the base plate is fixedly installed on the top of the counterweight support, a lower support rod is fixedly installed on the top of the base plate, a splicing rod is detachably connected to the top of the lower support rod, an upper support rod is detachably connected to the top of the splicing rod, and the upper support rod is fixedly installed on the bottom of the top plate.

[0012] Through the above technical solution, and by designing the connection relationship between the lower support rod, splicing rod, and upper support rod, users can design an appropriate number of splicing rods suitable for ancient artifacts of different heights.

[0013] As a preferred embodiment of the above technical solution, the top of the lower support rod and the splicing rod are both provided with grooves, and the bottom of the splicing rod and the upper support rod are both fixedly connected with insert rods. The insert rods are movably inserted into the inner cavity of the grooves. The outer walls of the lower support rod and the splicing rod are both provided with hidden grooves, and the inner cavity of the hidden grooves is threaded with splicing bolts. The threaded end of the splicing bolts is movably connected to the outer wall of the insert rods.

[0014] The above technical solution, through the design of the hidden groove, avoids the problem of splicing bolts interfering with the sliding of the lifting seat.

[0015] As a preferred embodiment of the above technical solution, the elevation adjustment mechanism includes a lifting seat, which is slidably connected to the outer wall of the upper support rod. The end of the rope away from the winding drum is fixedly connected to the top of the lifting seat, and a protruding seat is fixedly installed on the top of the lifting seat.

[0016] As a preferred embodiment of the above technical solution, a rotating shaft is rotatably connected to the outer wall of the inner side of the protrusion seat, and a stepper motor is fixedly installed on the outer wall of the protrusion seat, with the output shaft of the stepper motor fixedly connected to the end of the rotating shaft.

[0017] The above technical solution, through the design of the raised seat, stepper motor and rotating shaft, allows for adjustment of the elevation angle of the 3D laser scanner.

[0018] As a preferred embodiment of the above technical solution, a strip groove is provided on the side of the rotating shaft, and a strip-shaped insert is movably inserted into the inner cavity of the strip groove. Both the rotating shaft and the strip-shaped insert are provided with through holes, and a pin is movably inserted into the inner cavity of the through hole. A magnetic block is fixedly installed on the inner wall of the pin, and the bottom of the magnetic block is magnetically connected to the top of the rotating shaft. A connecting plate seat is fixedly installed at the end of the strip-shaped insert, and a three-dimensional laser scanner is fixedly installed on the side of the connecting plate seat away from the rotating shaft.

[0019] The above technical solution, through the connection design of the strip-shaped insert and the rotating shaft, facilitates the user's flexible use of disassembling the 3D laser scanner.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This invention utilizes a retractor-discharge motor design to drive a slow-speed rotation of the winding drum, thereby retracting or releasing the rope. This causes the lifting seat to slide on the outer walls of the lower support rod, splicing rod, and upper support rod, enabling automatic height adjustment of the 3D laser scanner. This improves data acquisition efficiency and avoids hand-held shaking, increasing the stability of the 3D laser scanner during data acquisition and ensuring data acquisition effectiveness. Furthermore, the stepper motor design drives a rotating shaft to adjust the scanning elevation angle of the 3D laser scanner, compensating for the low sufficiency of horizontal scanning and enhancing the practicality of the structure. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present utility model;

[0023] Figure 2 This is a schematic diagram of the separate structure of the lower support rod, splicing rod and upper support rod of this utility model;

[0024] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0025] Figure 4 This is a schematic diagram of the structure of the lifting seat of this utility model;

[0026] Figure 5 This is a schematic diagram of the disassembled structure of the 3D laser scanner of this utility model.

[0027] In the diagram: 1. Counterweight support; 11. Casters; 12. Push-pull frame; 2. Height adjustment mechanism; 21. Base plate; 22. Lower support rod; 23. Splicing rod; 231. Insert rod; 232. Groove; 233. Hidden groove; 234. Splicing bolt; 24. Upper support rod; 25. Top plate; 26. Raised frame; 27. Retractor / discharge motor; 28. Retractor drum; 29. ​​Rope; 3. Elevation adjustment mechanism; 31. Lifting seat; 32. Raised seat; 33. Stepper motor; 34. Shaft; 35. Strip groove; 36. Strip insert block; 37. Through hole; 371. Pin; 372. Magnetic block; 38. Connecting plate seat; 39. 3D laser scanner. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0029] like Figures 1-5 As shown, this utility model provides a technical solution: a data acquisition device for three-dimensional modeling of immovable cultural relics, comprising:

[0030] Counterweight support 1, with casters 11 fixedly installed at the bottom of counterweight support 1, and push-pull brackets 12 fixedly installed on the side of counterweight support 1;

[0031] Height adjustment mechanism 2 is located on top of counterweight support 1 and is used to adjust the scanning height.

[0032] The elevation angle adjustment mechanism 3 is mounted on the height adjustment mechanism 2 and is used to adjust the elevation angle of the scan.

[0033] As one implementation method in this embodiment, such as Figures 1-3 As shown, the height adjustment mechanism 2 includes a base plate 21 and a top plate 25. A raised frame 26 is fixedly installed on the top of the top plate 25. A winding drum 28 is rotatably connected to the outer wall of the inner side of the raised frame 26. A take-up and release motor 27 is fixedly installed on the outer wall of the raised frame 26. The output shaft of the take-up and release motor 27 is fixedly connected to the end of the winding drum 28. A rope 29 is fixedly connected to the outer wall of the winding drum 28. By controlling the operation of the take-up and release motor 27, the winding drum 28 can be driven to rotate slowly inside the raised frame 26, thereby winding or releasing the rope 29. This causes the lifting seat 31 to slide on the outer walls of the lower support rod 22, the splicing rod 23, and the upper support rod 24, realizing the function of automatically adjusting the height of the 3D laser scanner 39, improving the efficiency of data acquisition, and avoiding the problem of easy shaking when handheld, thus increasing the stability of the 3D laser scanner 39 during data acquisition.

[0034] As one implementation method in this embodiment, such as Figures 1-3As shown, the base plate 21 is fixedly installed on the top of the counterweight support 1. A lower support rod 22 is fixedly installed on the top of the base plate 21. A splicing rod 23 is detachably connected to the top of the lower support rod 22. An upper support rod 24 is detachably connected to the top of the splicing rod 23. The upper support rod 24 is fixedly installed on the bottom of the top plate 25. The tops of both the lower support rod 22 and the splicing rod 23 have grooves 232. The bottoms of both the splicing rod 23 and the upper support rod 24 are fixedly connected to insert rods 231, which are movably inserted into the inner cavity of the grooves 232. The outer walls of both the lower support rod 22 and the splicing rod 23 have hidden grooves 233. A splicing bolt 234 is threaded into the inner cavity of the hidden groove 233. The threaded end of the bolt 234 is movably connected to the outer wall of the insertion rod 231. Before use, the height adjustment range of the 3D laser scanner 39 can be adjusted to suit the height of the cultural relic. During adjustment, the bolt 234 is loosened, and the insertion rod 231 can be inserted or removed inside the groove 232. The user can then install an appropriate number of splicing rods 23 between the lower support rod 22 and the upper support rod 24 to suit the height of the cultural relic. After adjustment, the bolt 234 is tightened so that its threaded end fits against the outer wall of the insertion rod 231, thus locking the lower support rod 22, splicing rod 23, and upper support rod 24 as a whole. The reserved length of the rope 29 is relatively long, which can meet the expansion needs of the splicing rod 23.

[0035] As one implementation method in this embodiment, such as Figure 4 , Figure 5 As shown, the elevation angle adjustment mechanism 3 includes a lifting seat 31, which is slidably connected to the outer wall of the upper support rod 24. The end of the rope 29 away from the winding drum 28 is fixedly connected to the top of the lifting seat 31. A protruding seat 32 is fixedly installed on the top of the lifting seat 31. A rotating shaft 34 is rotatably connected to the outer wall of the inner side of the protruding seat 32. A stepper motor 33 is fixedly installed on the outer wall of the protruding seat 32. The output shaft of the stepper motor 33 is fixedly connected to the end of the rotating shaft 34. By controlling the stepper motor 33 to work, the rotating shaft 34 can be driven to rotate slowly inside the protruding seat 32, thereby realizing the function of adjusting the scanning elevation angle of the 3D laser scanner 39 and compensating for the problem of low horizontal scanning sufficiency.

[0036] As one implementation method in this embodiment, such as Figure 4 , Figure 5As shown, a strip groove 35 is provided on the side of the rotating shaft 34. A strip-shaped insert 36 is movably inserted into the inner cavity of the strip groove 35. Both the rotating shaft 34 and the strip-shaped insert 36 have through holes 37. A pin 371 is movably inserted into the inner cavity of the through hole 37. A magnetic block 372 is fixedly installed on the inner wall of the pin 371. The bottom of the magnetic block 372 is magnetically connected to the top of the rotating shaft 34. A connecting plate seat 38 is fixedly installed at the end of the strip-shaped insert 36. A 3D laser scanner 39 is fixedly installed on the side of the connecting plate seat 38 away from the rotating shaft 34. If it is necessary to scan some... For scanning at special angles, the 3D laser scanner 39 can be disassembled and used. During disassembly, the pin 371 is pulled out from the top of the rotating shaft 34, and the strip-shaped insert 36 can be pulled out from the strip groove 35 on the rotating shaft 34. Then, the 3D laser scanner 39 can be held and operated flexibly to meet the scanning requirements of special angles. When resetting the 3D laser scanner 39, the strip-shaped insert 36 is inserted into the strip groove 35, and then the pin 371 is inserted into the through hole 37, so that the magnetic block 372 is magnetically connected to the rotating shaft 34.

[0037] Working principle: Before use, the height adjustment range of the 3D laser scanner 39 can be adjusted to suit the height of the artifact. During adjustment, loosen the splicing bolt 234, and then insert or remove the insertion rod 231 inside the groove 232. The user can then install an appropriate number of splicing rods 23 between the lower support rod 22 and the upper support rod 24 to fit the height of the artifact. After adjustment, tighten the splicing bolt 234 so that its threaded end fits against the outer wall of the insertion rod 231. In use, push the structure from the push-pull bracket 12 to align the 3D laser scanner 39 with the ancient artifact, and then scan it using a portable pen. The laptop computer controls the take-up motor 27, the stepper motor 33, and the 3D laser scanner 39. During scanning, the laptop computer controls the take-up motor 27 to drive the take-up drum 28 to rotate slowly inside the protrusion frame 26, thereby winding or releasing the rope 29 and automatically adjusting the height of the 3D laser scanner 39. The laptop computer controls the stepper motor 33 to drive the rotating shaft 34 to rotate slowly inside the protrusion seat 32, thereby adjusting the scanning elevation angle of the 3D laser scanner 39. The 3D data scanned by the 3D laser scanner 39 is displayed on the laptop computer.

[0038] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. An acquisition device for three-dimensional modeling of immovable cultural heritage, characterized by, Include: Counterweight support (1), the bottom of the counterweight support (1) is fixedly installed with universal wheel (11), the side of the counterweight support (1) is fixedly installed with push-pull frame (12); Height adjusting mechanism (2), the height adjusting mechanism (2) is arranged at the top of the counterweight support (1), and the height adjusting mechanism (2) is used for adjusting the height of scanning; Elevation adjusting mechanism (3), the elevation adjusting mechanism (3) is arranged on the height adjusting mechanism (2), and the elevation adjusting mechanism (3) is used for adjusting the elevation of scanning.

2. The acquisition device for three-dimensional modeling of immovable cultural heritage according to claim 1, characterized in that: The height adjusting mechanism (2) comprises a bottom plate (21) and a top plate (25), the top of the top plate (25) is fixedly installed with a convex frame (26), the inner wall of the convex frame (26) is rotatably connected with a winding drum (28), the outer wall of the convex frame (26) is fixedly installed with a winding and unwinding motor (27), the output shaft of the winding and unwinding motor (27) is fixedly connected with the end of the winding drum (28), and the outer wall of the winding drum (28) is fixedly connected with a rope (29).

3. The acquisition device for three-dimensional modeling of immovable cultural heritage according to claim 2, characterized in that: The bottom plate (21) is fixedly installed at the top of the counterweight support (1), the top of the bottom plate (21) is fixedly installed with a lower support rod (22), the top of the lower support rod (22) is detachably connected with a splicing rod (23), the top of the splicing rod (23) is detachably connected with an upper support rod (24), and the upper support rod (24) is fixedly installed at the bottom of the top plate (25).

4. The acquisition device for three-dimensional modeling of immovable cultural heritage according to claim 3, characterized in that: The top of the lower support rod (22) and the splicing rod (23) is provided with a groove (232), the bottom of the splicing rod (23) and the upper support rod (24) is fixedly connected with a plug rod (231), the plug rod (231) is movably inserted into the inner cavity of the groove (232), the outer wall of the lower support rod (22) and the splicing rod (23) is provided with a hidden groove (233), the inner cavity of the hidden groove (233) is threadedly connected with a splicing bolt (234), and the threaded end of the splicing bolt (234) is movably connected with the outer wall of the plug rod (231).

5. The acquisition device for three-dimensional modeling of immovable cultural heritage according to claim 2, characterized in that: The elevation adjusting mechanism (3) comprises a lifting seat (31), the lifting seat (31) is slidably connected to the outer wall of the upper support rod (24), one end of the rope (29) away from the winding drum (28) is fixedly connected to the top of the lifting seat (31), and the top of the lifting seat (31) is fixedly installed with a convex seat (32).

6. The acquisition device for three-dimensional modeling of immovable cultural heritage according to claim 5, characterized in that: The outer wall of the convex seat (32) is rotatably connected with a rotating shaft (34), the outer wall of the convex seat (32) is fixedly installed with a stepping motor (33), and the output shaft of the stepping motor (33) is fixedly connected with the end of the rotating shaft (34).

7. The acquisition device for 3D modeling of immovable cultural heritage according to claim 6, characterized in that: The side of the rotating shaft (34) is provided with a strip-shaped slot (35), a strip-shaped plug (36) is movably inserted into the inner cavity of the strip-shaped slot (35), a through hole (37) is formed on the rotating shaft (34) and the strip-shaped plug (36), a pin rod (371) is movably inserted into the inner cavity of the through hole (37), a magnetic attraction block (372) is fixedly installed on the inner wall of the pin rod (371), the bottom of the magnetic attraction block (372) is magnetically connected with the top of the rotating shaft (34), a connecting plate seat (38) is fixedly installed on the end of the strip-shaped plug (36), and a three-dimensional laser scanner (39) is fixedly installed on the side, away from the rotating shaft (34), of the connecting plate seat (38).

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