Cascae surveying and mapping device based on three-dimensional laser scanning

Abstract

The invention discloses a cadastral surveying and mapping device based on three-dimensional laser scanning, and relates to the field of surveying and mapping equipment, the cadastral surveying and mapping device comprises a bottom plate, and the bottom plate is provided with a U-shaped placing cavity penetrating front and back; when the threaded rod is rotated, the surveying and mapping table plate can slide up and down on the outer wall of the rotating threaded rod, when the surveying and mapping table plate slides upwards, the two surveying and mapping laser scanners can be rapidly pushed out of the protective shell, then surveying and mapping work can be carried out, and when the surveying and mapping table plate slides downwards, the two surveying and mapping laser scanners can be rapidly retracted into the protective shell. The whole operation process is convenient and fast, the time of workers is saved, meanwhile, the flexibility of the surveying and mapping device is improved, the motor can drive the cleaning brush on the rotating rod to rotate together, and by arranging a connecting structure between the cleaning brush and the surveying and mapping laser scanner, dust on a lens of the surveying and mapping laser scanner can be conveniently and fast removed; the quality of the scanned image is improved, and the surveying and mapping accuracy is also improved.

Description

Technical Field

[0001] The present invention relates to the technical field of surveying and mapping equipment, and in particular to a cadastral surveying and mapping device based on three-dimensional laser scanning. Background Art

[0002] The cadastral surveying and mapping device of 3D laser scanning mainly includes high-precision 3D laser scanners and their supporting software systems. Among them, high-precision 3D laser scanners, such as the HS series ground 3D laser scanners, have the characteristics of high precision, high frequency, and long-distance scanning. They can scan 360 degrees in all directions and quickly obtain the 3D point cloud data required for cadastral surveying and mapping. The workflow of this device usually includes steps such as data acquisition, data splicing, accuracy verification, and cadastral mapping. In the data acquisition stage, the scanner scans the measurement area through laser pulses to obtain high-density and high-precision 3D point cloud data. Subsequently, the supporting software system is used to automatically splice the point cloud data of each measuring station to form a complete point cloud data of the measurement area. In the accuracy verification stage, the spliced ​​point cloud data is sliced ​​and checked to verify whether its accuracy meets the requirements of cadastral surveying and mapping. Finally, the cadastral mapping software is used to quickly draw a cadastral map based on the point cloud data.

[0003] The existing 3D laser scanning and mapping devices cannot adjust the mapping instrument to a very high height during scanning and mapping, resulting in the problem that ultra-altitude mapping cannot be performed. Based on these problems, Chinese patent CN218994310U discloses a 3D laser scanning and mapping device. The combination of a rotating shaft frame, a mapping frame, a positive mapping instrument, and a reverse mapping instrument solves the problem that the 3D laser scanning and mapping device is inconvenient to scan and map during use, and is difficult to perform all-round scanning and precise mapping. The combination of a wheel frame, a support tray, a plug-in column, and a telescopic column solves the problem that the 3D laser scanning and mapping device cannot adjust the mapping height during use and cannot perform ultra-altitude mapping.

[0004] Before using the surveying and mapping device, the surveying and mapping frame needs to be installed on the rotating shaft frame. This process not only wastes the staff's time, but also reduces the flexibility of the surveying and mapping device. During the three-dimensional laser scanning outdoors, a lot of dust is easily attached to the scanning lens, and the dust will have a significant impact on the laser scanning lens, specifically by reducing the performance and measurement accuracy of the equipment. Since the surveying and mapping frame in the device lacks a dust removal structure, the image quality of the scan will be affected during the surveying and mapping process of the device, and the accuracy of the surveying and mapping will also be reduced. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A cadastral surveying and mapping device based on three-dimensional laser scanning comprises a base plate, a U-shaped placement cavity penetrating from front to back is opened in the base plate, two sets of moving mechanisms are installed at the bottom of the base plate, a rotatable fixing mechanism is installed in the U-shaped placement cavity, a hollow column is fixedly connected at the top center of the base plate, a lifting column is slidably connected to the inner wall of the hollow column, a baffle is fixedly connected to the top of the lifting column, a shaft disc is fixedly connected at the top center of the baffle, a surveying and mapping mechanism is installed above the shaft disc, and the surveying and mapping mechanism comprises a shaft cover, a top plate, a protective shell, a surveying and mapping laser scanner, a motor, and an installation The shaft disk, a rotating rod, a nut and a cleaning brush, the outer wall of the shaft disk is rotatably connected to the inner wall of the shaft cover, the outer wall of the shaft cover is fixedly connected to a top plate, the top outer edge of the top plate is fixedly connected to a protective shell, two groups of surveying and mapping laser scanners are installed in the protective shell, the tops of the surveying and mapping laser scanners are fixedly connected to motors, the movable ends of the motors are rotatably connected to mounting disks, one end of the mounting disks is sleeved with a rotating rod, the other end of the mounting disks is threadedly connected with a nut, one end of the outer wall of the rotating rod is fixedly connected to a cleaning brush, and the surface of the cleaning brush can slide closely against the mirror of the surveying and mapping laser scanner.

[0008] As a further description of the above technical solution:

[0009] The moving mechanism includes a U-shaped plate, a ring, a long-axis threaded tube, a roller and a long-axis bolt. The two ends of the bottom of the bottom plate are fixedly connected with the U-shaped plate, the inner wall of the U-shaped plate is penetrated by rings on both sides, the inner wall of the ring is penetrated by a long-axis threaded tube, the outer wall center of the long-axis threaded tube is rotatably connected with a roller, and the inner wall of the long-axis threaded tube is threadedly connected with a long-axis bolt.

[0010] As a further description of the above technical solution:

[0011] The fixing mechanism includes a shaft rod, a square swivel, an L-shaped bracket, a square through hole, a scraper, a shaft ring, an axis core, a turntable, a threaded column, a threaded sleeve, a square plug rod and a slide groove. The shaft rod is fixedly connected to the top center of the inner wall of the U-shaped placement cavity, the outer wall of the shaft rod is rotatably connected to the square swivel, the outer walls on both sides of the square swivel are fixedly connected to the L-shaped brackets, the L-shaped brackets are provided with square through holes that penetrate up and down, the bottom ends of both sides of the inner wall of the square through hole are fixedly connected to scrapers, the top of the inner wall of the square through hole is fixedly connected to the shaft ring, and the inner wall of the shaft ring is rotatably connected to the axis core.

[0012] As a further description of the above technical solution:

[0013] The top of the shaft core is fixedly connected to a turntable, the bottom of the shaft core is fixedly connected to a threaded column, the outer wall of the threaded column is threadedly connected to a threaded sleeve, the outer wall of the threaded sleeve is fixedly connected to a square plug rod, the outer walls of both sides of the square plug rod are provided with sliding grooves, the outer walls of the square plug rod are slidably connected to the inner walls of the square through holes, and the inner walls of the sliding grooves are slidably connected to the outer walls of the scrapers.

[0014] As a further description of the above technical solution:

[0015] The surveying and mapping mechanism also includes a rotating shaft, a threaded rod, a surveying and mapping table, a wireless control module, a control panel, a wireless transmission module and a top cover. The rotating shaft is fixedly connected to the top center of the top plate, the top of the rotating shaft is rotatably connected to the threaded rod, the outer wall of the threaded rod is threadedly connected to the surveying and mapping table, the outer wall of the surveying and mapping table is slidably connected to the inner wall of the protective shell, and both ends of the top of the surveying and mapping table are fixedly connected to the bottom of the surveying and mapping laser scanner.

[0016] As a further description of the above technical solution:

[0017] The rear end of the motor is fixedly connected to a wireless control module, one side of the rear end face of the surveying and mapping laser scanner is fixedly connected to a control panel, the other side of the rear end face of the surveying and mapping laser scanner is fixedly connected to a wireless transmission module, and a top cover is sleeved on the top end of the outer wall of the protective shell.

[0018] As a further description of the above technical solution:

[0019] The outer walls of both sides of the lifting column are provided with multiple groups of inclined slots, the lifting column is penetrated with multiple groups of placement frames, the inner walls of the placement frames are sleeved with placement boxes, and the top ends of both sides of the inner wall of the hollow column are penetrated with square sliding holes.

[0020] As a further description of the above technical solution:

[0021] One end of the inner wall of the square sliding hole is fixedly connected with a hollow plate, both ends of the hollow plate pass through a limiting rod, one end of the outer wall of the limiting rod is sleeved with a return spring, one end surface of the limiting rod is fixedly connected with a side plate, the other end surface of the limiting rod is fixedly connected with a sloped clamping block, and one end of the outer wall of the sloped clamping block is clamped with the inner wall of the sloped clamping groove.

[0022] As a further description of the above technical solution:

[0023] The outer walls on both sides of the baffle are fixedly connected with support rods, the outer walls of the support rods are rotatably connected with rotating plates, and the opposite surfaces of the two groups of rotating plates are fixedly connected with pull rods.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) When the threaded rod is rotated, the surveying and mapping table can slide up and down on the outer wall of the rotating threaded rod. When the surveying and mapping table slides upward, the two sets of surveying and mapping laser scanners can be quickly pushed out of the protective shell, and then the surveying and mapping work can be carried out. When the surveying and mapping table slides downward, the two sets of surveying and mapping laser scanners can be quickly recovered into the protective shell. The whole operation process is convenient and fast, which not only saves the staff time, but also improves the flexibility of the surveying and mapping device. The motor can rotate with the cleaning brush on the rotating rod. By setting a connection structure between the cleaning brush and the surveying and mapping laser scanner, it is convenient to quickly remove dust on the lens of the surveying and mapping laser scanner, which not only improves the scanned image quality, but also improves the accuracy of surveying and mapping.

[0026] (2) By setting up the roller, the entire surveying and mapping device can be moved more conveniently. After the long-axis bolt is removed, the long-axis threaded tube is pulled out from the roller, and then the roller can be disassembled and replaced.

[0027] (3) During the movement of the surveying and mapping device, the two groups of L-shaped brackets are placed in the U-shaped placement cavity. When the surveying and mapping device needs to be fixed in place, the square swivel can be rotated to rotate the two groups of L-shaped brackets out of the U-shaped placement cavity at the same time. When the surveying and mapping personnel rotate the turntable, the threaded column at the bottom of the shaft core will also rotate together. At this time, the threaded sleeve can move up and down on the outer wall of the rotating threaded column, and the square plug rod will also slide up and down on the inner wall of the square through hole. When the square plug rod moves downward, it can be vertically inserted into the ground to fix the entire surveying and mapping device. By setting a slide groove, the contact area between the surface of the square plug rod and the underground soil can be expanded, thereby further improving the stability of the square plug rod. By setting a connection structure between the slide groove and the scraper, when the square plug rod moves upward and is recovered to the inside of the square through hole, the scraper can completely remove the soil attached to the inner wall of the slide groove.

[0028] (4) By setting up multiple sets of placement boxes, the instruments needed for surveying and mapping can be stored. By setting up a connection structure between the inclined surface block and the inclined surface slot, the lifting column can be fixed after sliding, thereby preventing the lifting column from falling downward. By pulling the two sets of side panels in opposite directions at the same time, the inclined surface block can be quickly detached from the inclined surface slot, and then the lifting column will slide downward. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the present invention;

[0030] Figure 2 It is a front view of the present invention;

[0031] Figure 3 It is a front cross-sectional view of the present invention;

[0032] Figure 4 It is a front cross-sectional view of the moving mechanism in the present invention;

[0033] Figure 5 It is a front cross-sectional view of the fixing mechanism in the present invention;

[0034] Figure 6 It is a front cross-sectional view of the surveying and mapping mechanism in the present invention.

[0035] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0036] 1. Bottom plate; 2. U-shaped placement cavity; 3. Moving mechanism; 31. U-shaped plate; 32. Ring; 33. Long-axis threaded tube; 34. Roller; 35. Long-axis bolt; 4. Fixing mechanism; 41. Shaft; 42. Square swivel; 43. L-shaped bracket; 44. Square through hole; 45. Scraper; 46. Shaft ring; 47. Shaft core; 48. Turntable; 49. Threaded column; 410. Threaded sleeve; 411. Square plug rod; 412. Slide; 5. Hollow column; 6. Lifting column; 7. Baffle; 8. Shaft disc; 9. Surveying and mapping mechanism; 91. Shaft cover; 92. Top plate; 93. Anti- Protective shell; 94, rotating shaft; 95, threaded rod; 96, mapping table; 97, mapping laser scanner; 98, motor; 99, mounting plate; 910, rotating rod; 911, nut; 912, cleaning brush; 913, wireless control module; 914, control panel; 915, wireless transmission module; 916, top cover; 10, inclined slot; 11, placement frame; 12, placement box; 13, square slide hole; 14, hollow plate; 15, limit rod; 16, reset spring; 17, side plate; 18, inclined block; 19, support rod; 20, rotating plate; 21, pull rod. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0040] Reference Figure 1-6 An embodiment of the present invention is as follows: a cadastral surveying and mapping device based on three-dimensional laser scanning comprises a base plate 1, a U-shaped placement cavity 2 penetrating from front to back is provided in the base plate 1, U-shaped plates 31 are fixedly connected to both ends of the bottom of the base plate 1, collars 32 are penetrated on both sides of the inner wall of the U-shaped plate 31, a long axis threaded tube 33 is penetrated on the inner wall of the collar 32, a roller 34 is rotatably connected at the center of the outer wall of the long axis threaded tube 33, and a long axis bolt 35 is threadedly connected to the inner wall of the long axis threaded tube 33, and a mobile mechanism can be formed by arranging the U-shaped plate 31, the collar 32, the long axis threaded tube 33, the roller 34 and the long axis bolt 35 3. There are two groups of U-shaped plates 31, and two groups of collars 32 are installed in each group of U-shaped plates 31. A group of long-axis threaded tubes 33 are passed through the inner walls of the two groups of collars 32. The inner walls of the long-axis threaded tubes 33 are provided with threads. By setting a connection structure between the long-axis threaded tubes 33 and the long-axis bolts 35, the roller 34 can be fixed in the U-shaped plate 31. The roller 34 is set in the groove of the U-shaped plate 31. By setting the roller 34, the whole surveying and mapping device can be moved more conveniently. After the long-axis bolts 35 are removed, the long-axis threaded tubes 33 are pulled out from the rollers 34, and then the rollers 34 can be disassembled and replaced.

[0041] A shaft 41 is fixedly connected to the top center of the inner wall of the U-shaped placement cavity 2, and a square swivel 42 is rotatably connected to the outer wall of the shaft 41. L-shaped brackets 43 are fixedly connected to the outer walls of both sides of the square swivel 42. The two sets of L-shaped brackets 43 are placed in the U-shaped placement cavity 2 during the movement of the surveying and mapping device. When the surveying and mapping device needs to be fixed in place, the square swivel 42 can be rotated to rotate the two sets of L-shaped brackets 43 out of the U-shaped placement cavity 2 at the same time. The L-shaped brackets 43 are each provided with a square through hole 44 that runs through the upper and lower parts. The inner wall of the square through hole 44 is provided with a square through hole 44 on both sides. The bottom ends of the two sides are fixedly connected with scrapers 45, the top ends of the inner walls of the square through holes 44 are fixedly connected with shaft rings 46, the inner walls of the shaft rings 46 are rotatably connected with shaft cores 47, the tops of the shaft cores 47 are fixedly connected with turntables 48, the bottoms of the shaft cores 47 are fixedly connected with threaded columns 49, the outer walls of the threaded columns 49 are threadedly connected with threaded sleeves 410, the outer walls of the threaded sleeves 410 are fixedly connected with square plug rods 411, the outer walls of the two sides of the square plug rods 411 are provided with sliding grooves 412, and the outer walls of the square plug rods 411 are slidably connected to the inner walls of the square through holes 44 The inner wall of the slide groove 412 is slidably connected with the outer wall of the scraper 45. When the surveying and mapping personnel rotate the turntable 48, the threaded column 49 at the bottom of the shaft core 47 will also rotate together. At this time, the threaded sleeve 410 can move up and down on the outer wall of the rotating threaded column 49, and the square plug rod 411 will also slide up and down on the inner wall of the square through hole 44. When the square plug rod 411 moves downward, it can be vertically inserted into the ground, which plays a fixing role for the entire surveying and mapping device. By setting the slide groove 412, the contact between the surface of the square plug rod 411 and the underground soil can be expanded. The contact surface can further improve the stability of the square plug rod 411. By setting the connection structure between the slide groove 412 and the scraper 45, when the square plug rod 411 moves upward and is recovered to the inside of the square through hole 44, the scraper 45 can completely remove the mud attached to the inner wall of the slide groove 412. By setting the shaft 41, the square swivel 42, the L-shaped bracket 43, the square through hole 44, the scraper 45, the shaft ring 46, the shaft core 47, the turntable 48, the threaded column 49, the threaded sleeve 410, the square plug rod 411 and the slide groove 412, a fixing mechanism 4 can be formed.

[0042] A hollow column 5 is fixedly connected to the top center of the bottom plate 1, and square openings are provided at the top and bottom of the hollow column 5. A lifting column 6 is slidably connected to the inner wall of the hollow column 5, and the outer wall of the lifting column 6 can slide up and down close to the inner wall of the hollow column 5. When the lifting column 6 slides up and down, the height of the entire surveying and mapping device can be adjusted. A baffle 7 is fixedly connected to the top of the lifting column 6, and a shaft disc 8 is fixedly connected to the top center of the baffle 7. The outer wall of the shaft disc 8 is rotatably connected to a shaft cover 91, and a top plate 92 is fixedly connected to the outer wall of the shaft cover 91. A protective shell 93 is fixedly connected to the top outer edge of the top plate 92, and a rotating shaft 94 is fixedly connected to the top center of the top plate 92. A threaded rod 95 is rotatably connected to the top of the rotating shaft 94, and the outer wall of the threaded rod 95 is threadedly connected to a surveying and mapping table 96. A threaded hole that runs through the top and bottom is provided at the top center of the surveying and mapping table 96, and the outer wall of the threaded rod 95 vertically penetrates the surveying and mapping The threaded holes inside the table 96, the outer wall of the surveying and mapping table 96 is slidably connected to the inner wall of the protective shell 93, and the top two ends of the surveying and mapping table 96 are fixedly connected with surveying and mapping laser scanners 97. The scanning lenses of the two groups of surveying and mapping laser scanners 97 are facing in opposite directions. By setting a connecting structure between the shaft disk 8 and the shaft cover 91, the direction of the scanning lens of the surveying and mapping laser scanner 97 can be quickly adjusted. When the threaded rod 95 is rotated, the surveying and mapping table 96 can slide up and down on the outer wall of the rotating threaded rod 95. When the surveying and mapping table 96 slides upward, the two groups of surveying and mapping laser scanners 97 can be quickly pushed out of the protective shell 93, and then the surveying and mapping work can be carried out. When the surveying and mapping table 96 slides downward, the two groups of surveying and mapping laser scanners 97 can be quickly recovered into the protective shell 93. The whole operation process is convenient and fast, which not only saves the staff's time, but also improves the flexibility of the surveying and mapping device.

[0043] The top of the surveying and mapping laser scanner 97 is fixedly connected to a motor 98, and the movable end of the motor 98 is rotatably connected to a mounting plate 99. The mounting plate 99 consists of a set of chassis and two sets of threaded plug rods. One end face of the chassis is connected to the movable end of the motor 98, and the other end face of the chassis is installed with two sets of threaded plug rods. One end of the mounting plate 99 is sleeved with a rotating rod 910, and the other end of the mounting plate 99 is threadedly connected with a nut 911. One end of the rotating rod 910 is provided with two sets of round holes, and the outer walls of the two sets of threaded plug rods in the mounting plate 99 simultaneously penetrate the rotating rod The inner circular hole of 910 and the protruding end of the threaded plug rod are connected to the nut 911. After the nut 911 is removed, the rotating rod 910 can be disassembled and replaced. A cleaning brush 912 is fixedly connected to one end of the outer wall of the rotating rod 910. The motor 98 can rotate with the cleaning brush 912 on the rotating rod 910. The rear end of the motor 98 is fixedly connected to a wireless control module 913. By setting the wireless control module 913, it is convenient for surveying and mapping personnel to remotely control the switches and speeds of the two sets of motors 98 at the same time. A control panel 914 is fixedly connected to one side of the rear end surface of the surveying and mapping laser scanner 97, and a wireless transmission module 915 is fixedly connected to the other side of the rear end surface of the surveying and mapping laser scanner 97. By setting the wireless transmission module 915, it is convenient for the surveying and mapping laser scanner 97 to upload the scanned information and images in time. The surface of the cleaning brush 912 can slide closely against the mirror surface of the surveying and mapping laser scanner 97. By setting the connection structure between the cleaning brush 912 and the surveying and mapping laser scanner 97, it is convenient to quickly remove dust on the lens of the surveying and mapping laser scanner 97 to prevent A top cover 916 is sleeved on the top of the outer wall of the protective shell 93. By arranging the protective shell 93 and the top cover 916, two groups of surveying and mapping laser scanners 97 can be protected. By arranging the shaft cover 91, the top plate 92, the protective shell 93, the rotating shaft 94, the threaded rod 95, the surveying and mapping table 96, the surveying and mapping laser scanner 97, the motor 98, the mounting plate 99, the rotating rod 910, the nut 911, the cleaning brush 912, the wireless control module 913, the control panel 914, the wireless transmission module 915 and the top cover 916, a surveying and mapping mechanism 9 can be formed.

[0044] The outer walls of both sides of the lifting column 6 are provided with multiple groups of inclined slots 10, and the lifting column 6 is penetrated with multiple groups of placement frames 11, and the inner walls of the placement frames 11 are sleeved with placement boxes 12. By setting up multiple groups of placement boxes 12, the instruments needed for surveying and mapping can be stored. The tops of both sides of the inner wall of the hollow column 5 are penetrated with square sliding holes 13, and one end of the inner wall of the square sliding hole 13 is fixedly connected with a hollow plate 14, and both ends of the hollow plate 14 are penetrated with a limiting rod 15, and one end of the outer wall of the limiting rod 15 is sleeved with a reset spring 16, and one end face of the limiting rod 15 is fixedly connected with a side plate 17, and the other end face of the limiting rod 15 is fixedly connected with an inclined block 18. One end of the outer wall of 18 is clamped with the inner wall of the inclined slot 10. By setting a connecting structure between the inclined block 18 and the inclined slot 10, the lifting column 6 can be fixed after the sliding is completed, thereby preventing the lifting column 6 from falling downward. By pulling the two sets of side panels 17 in opposite directions at the same time, the inclined block 18 can be quickly disengaged from the inclined slot 10, and then the lifting column 6 will slide downward. The outer walls of both sides of the baffle 7 are fixedly connected with support rods 19, and the outer walls of the support rods 19 are rotatably connected with rotating plates 20. The opposite surfaces of the two sets of rotating plates 20 are fixedly connected with pull rods 21. By setting the pull rods 21, it is convenient for surveying and mapping personnel to pull the entire device.

[0045] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the scope of protection determined by the claims submitted for the present invention.

Claims

1. A cadastral mapping device based on three-dimensional laser scanning, comprising a base plate (1), characterized in that: The bottom plate (1) is provided with a U-shaped placement cavity (2) which runs through the bottom plate (1), two groups of moving mechanisms (3) are installed at the bottom of the bottom plate (1), a rotatable fixing mechanism (4) is installed in the U-shaped placement cavity (2), a hollow column (5) is fixedly connected at the top center of the bottom plate (1), a lifting column (6) is slidably connected to the inner wall of the hollow column (5), a baffle (7) is fixedly connected to the top of the lifting column (6), a shaft disc (8) is fixedly connected at the top center of the baffle (7), a surveying and mapping mechanism (9) is installed above the shaft disc (8), and the surveying and mapping mechanism (9) comprises a shaft cover (91), a top plate (92), a protective shell (93), a surveying and mapping laser scanner (97), a motor (98), a mounting plate (99), a rotating rod (910), a nut (911) and a cleaning brush (911). 12), the outer wall of the shaft disk (8) is rotatably connected to the inner wall of the shaft cover (91), the outer wall of the shaft cover (91) is fixedly connected to a top plate (92), the top outer edge of the top plate (92) is fixedly connected to a protective shell (93), two groups of mapping laser scanners (97) are installed in the protective shell (93), the top of the mapping laser scanner (97) is fixedly connected to a motor (98), the movable end of the motor (98) is rotatably connected to a mounting disk (99), one end of the mounting disk (99) is sleeved with a rotating rod (910), the other end of the mounting disk (99) is threadedly connected to a nut (911), one end of the outer wall of the rotating rod (910) is fixedly connected to a cleaning brush (912), the surface of the cleaning brush (912) can slide closely against the mirror surface of the mapping laser scanner (97).

2. The cadastral surveying and mapping device based on three-dimensional laser scanning according to claim 1, characterized in that: The moving mechanism (3) comprises a U-shaped plate (31), a collar (32), a long-axis threaded tube (33), a roller (34) and a long-axis bolt (35); both ends of the bottom of the bottom plate (1) are fixedly connected to the U-shaped plate (31); collars (32) are passed through both sides of the inner wall of the U-shaped plate (31); the inner wall of the collar (32) is passed through the long-axis threaded tube (33); the center of the outer wall of the long-axis threaded tube (33) is rotatably connected to the roller (34); and the inner wall of the long-axis threaded tube (33) is threadedly connected to the long-axis bolt (35).

3. The cadastral surveying and mapping device based on three-dimensional laser scanning according to claim 1, characterized in that: The fixing mechanism (4) comprises a shaft (41), a square rotating ring (42), an L-shaped bracket (43), a square through hole (44), a scraper (45), a shaft ring (46), a shaft core (47), a rotating disk (48), a threaded column (49), a threaded sleeve (410), a square plug rod (411) and a sliding groove (412); the shaft (41) is fixedly connected to the center of the top of the inner wall of the U-shaped placement cavity (2); the outer wall of the shaft (41) is rotatably connected to the shaft A square rotating ring (42) is connected, and the outer walls on both sides of the square rotating ring (42) are fixedly connected to L-shaped brackets (43), and the L-shaped brackets (43) are each provided with a square through hole (44) penetrating from top to bottom, and the bottom ends of both sides of the inner wall of the square through hole (44) are fixedly connected to scrapers (45), and the top ends of the inner wall of the square through hole (44) are fixedly connected to shaft rings (46), and the inner wall of the shaft ring (46) is rotatably connected to a shaft core (47).

4. The cadastral surveying and mapping device based on three-dimensional laser scanning according to claim 3 is characterized in that: The top of the shaft core (47) is fixedly connected to a rotating disk (48), the bottom of the shaft core (47) is fixedly connected to a threaded column (49), the outer wall of the threaded column (49) is threadedly connected to a threaded sleeve (410), the outer wall of the threaded sleeve (410) is fixedly connected to a square plug rod (411), the outer walls of both sides of the square plug rod (411) are provided with sliding grooves (412), the outer wall of the square plug rod (411) is slidably connected to the inner wall of the square through hole (44), and the inner wall of the sliding groove (412) is slidably connected to the outer wall of the scraper (45).

5. The cadastral surveying and mapping device based on three-dimensional laser scanning according to claim 1, characterized in that: The surveying and mapping mechanism (9) further comprises a rotating shaft (94), a threaded rod (95), a surveying and mapping table (96), a wireless control module (913), a control panel (914), a wireless transmission module (915) and a top cover (916); the rotating shaft (94) is fixedly connected to the top center of the top plate (92); the top of the rotating shaft (94) is rotatably connected to the threaded rod (95); the outer wall of the threaded rod (95) is threadedly connected to the surveying and mapping table (96); the outer wall of the surveying and mapping table (96) is slidably connected to the inner wall of the protective shell (93); and both ends of the top of the surveying and mapping table (96) are fixedly connected to the bottom of the surveying and mapping laser scanner (97).

6. The cadastral surveying and mapping device based on three-dimensional laser scanning according to claim 5, characterized in that: The rear end of the motor (98) is fixedly connected to a wireless control module (913), one side of the rear end face of the mapping laser scanner (97) is fixedly connected to a control panel (914), the other side of the rear end face of the mapping laser scanner (97) is fixedly connected to a wireless transmission module (915), and the top end of the outer wall of the protective shell (93) is sleeved with a top cover (916).

7. The cadastral surveying and mapping device based on three-dimensional laser scanning according to claim 1, characterized in that: The outer walls of both sides of the lifting column (6) are provided with a plurality of inclined slots (10), the lifting column (6) is penetrated with a plurality of placement frames (11), the inner walls of the placement frames (11) are sleeved with placement boxes (12), and the top ends of both sides of the inner wall of the hollow column (5) are penetrated with square sliding holes (13).

8. The cadastral surveying and mapping device based on three-dimensional laser scanning according to claim 7, characterized in that: One end of the inner wall of the square sliding hole (13) is fixedly connected to a hollow plate (14), both ends of the hollow plate (14) pass through a limiting rod (15), one end of the outer wall of the limiting rod (15) is sleeved with a return spring (16), one end surface of the limiting rod (15) is fixedly connected to a side plate (17), and the other end surface of the limiting rod (15) is fixedly connected to an inclined clamping block (18), and one end of the outer wall of the inclined clamping block (18) is clamped to the inner wall of the inclined clamping groove (10).

9. The cadastral surveying and mapping device based on three-dimensional laser scanning according to claim 1, characterized in that: The outer walls on both sides of the baffle (7) are fixedly connected to support rods (19), the outer walls of the support rods (19) are rotatably connected to rotating plates (20), and the opposite surfaces of the two groups of rotating plates (20) are fixedly connected to pull rods (21).

Images