High-precision optical surveying and mapping holder capable of preventing observation interference

Abstract

The invention discloses a high-precision optical surveying and mapping holder capable of preventing observation interference, which comprises a horizontally arranged connecting seat, the top of the connecting seat is rotatably connected with a base, and the base is provided with a double-shaft motor of which the center line is horizontally arranged along the left-right direction; the left end and the right end of a main shaft of the double-shaft motor are respectively connected with a prism installation support through an elastic coupler, and the rear side of the base is provided with an adjustable positioning frame used for positioning the prism installation supports. According to the invention, the principle is scientific, the structure is compact, the two elastic couplings, the prism mounting bracket and the total reflection prism assembly are simultaneously driven by the double-shaft motor to rotate, and the height of the prism in the total reflection prism assembly is further adjusted, so that the interference phenomenon is avoided when a plurality of measurement points on the same straight line are subjected to distance measurement, and the measurement accuracy is improved. And meanwhile, good stability is achieved at the high position and the low position.

Description

Technical Field

[0001] The present invention belongs to the technical field of surveying and mapping engineering, and particularly relates to a high-precision optical surveying and mapping cloud platform for preventing observation interference. Background Art

[0002] A total station is short for a total station electronic tacheometer, which is an optoelectronic instrument combining an electronic theodolite, an electro-optical distance meter and a microprocessor. In the field of surveying and mapping, a total station is used to measure the distance to each measurement point. A total reflection prism is installed at the measurement point to reflect the laser emitted by the total station for distance measurement. In some cases, multiple measurement points overlap on a straight line. Currently, the total reflection prism set at the measurement point cannot be adjusted in height. In order to avoid interference, it is urgent to design an automatic folding and lifting cloud platform for installing the total reflection prism. Summary of the Invention

[0003] The purpose of the present invention is to provide a high-precision optical surveying and mapping cloud platform for preventing observation interference, which has a simple structure, is convenient to adjust, and has accurate positioning.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions: A high-precision optical surveying and mapping cloud platform for preventing observation interference includes a horizontally arranged connecting seat. A base is rotatably connected to the top of the connecting seat. A two-axis motor with a center line horizontally arranged in the left-right direction is provided on the base. The left and right ends of the main shaft of the two-axis motor are respectively connected to a prism mounting bracket through an elastic coupling. An adjustable positioning frame for positioning the prism mounting bracket is provided at the rear of the base.

[0005] The connecting seat includes a fixed connector in the shape of a disc. Three conical positioning heads are arranged in a circumferential array at the lower end of the fixed connector. A stud is provided at the center of the upper end of the fixed connector. A fixed disc is threadedly connected to the stud. An annular groove is formed on the outer circle of the fixed disc. The lower part of the bottom of the annular groove is a cylindrical surface, and the upper middle part of the bottom of the annular groove is a conical surface that is thick at the top and thin at the bottom.

[0006] The base includes an upper substrate and a lower substrate connected by a first bolt. An installation hole with a diameter equal to that of the fixed disc is formed at the center of the lower substrate. The bottom surface of the lower substrate is in contact with the top surface of the fixed connector. The fixed disc extends into the installation hole of the lower substrate. There is a gap between the top surface of the fixed disc and the bottom surface of the upper substrate. A locking device for fastening the base and the connecting seat is provided on the side of the lower substrate.

[0007] The locking device includes a locking screw, a pressing column, a handle and a guiding column. A through threaded hole and a through light hole are formed in the lower base plate along the radial direction of the fixed disk. The locking screw extends into and is threadedly connected to the threaded hole. The pressing column is arranged in the light hole. A guiding hole is provided in the lower base plate and is located below the light hole. The length direction of the guiding hole is parallel to the center line of the light hole. The guiding column is a screw threadedly connected to the inside of the pressing column. The head of the screw slides in the guiding hole. The handle is fixedly arranged at the outer end of the locking screw. The outer end of the guiding column is in pressing cooperation with the inner end of the locking screw. The inner end of the pressing column is in pressing cooperation with the conical surface at the bottom of the annular groove on the outer circumference of the fixed disk. The inner end of the guiding column is spherical in shape.

[0008] In the middle of the upper surface of the upper base plate, an L-shaped support is provided through a second bolt. The dual-axis motor is provided on the L-shaped support through a third bolt. The elastic coupling includes an inner sleeve, an outer sleeve and a torsion spring. The main shaft of the dual-axis motor extends into one end opening of the inner sleeve. The inner sleeve is in pressing connection with the plane milled on the outer circumference of the main shaft through a first set screw connected by radial threads. The other end of the inner sleeve extends coaxially into the outer sleeve. The torsion spring is arranged in the outer sleeve and coaxially sleeved on the outer circumference of the inner sleeve. The spring arms extending from both ends of the torsion spring respectively pass through the inner sleeve and the outer sleeve. A rotating shaft is integrally provided coaxially at the outer end of the outer sleeve. On the left and right sides of the upper base plate, a support plate is respectively fixedly provided. The rotating shaft is rotatably connected to the support plate through a bearing.

[0009] The prism mounting bracket includes a mounting plate located above the dual-axis motor. At the bottom of the left and right sides of the mounting plate, connecting plates are fixedly connected through a fourth bolt. A U-shaped groove sleeved on the outer circumference of the rotating shaft is provided at the lower part of the connecting plate. The connecting plate and the rotating shaft are connected through a fifth bolt. A positioning connecting pin is threadedly connected in the middle of the mounting plate. A prism limiting block is provided on the mounting plate.

[0010] The adjustable positioning frame is integrally of a portal structure. A positioning screw is threadedly connected at the middle position of the upper part of the adjustable positioning frame. A vertically through V-shaped groove is formed in the middle of the rear side of the mounting plate. A positioning ball head extending into the V-shaped groove and in pressing cooperation with the mounting plate is provided at the front end of the positioning screw. A second set screw is threadedly connected to the top of the adjustable positioning frame. The lower end of the second set screw is in pressing connection with the outer circumference of the positioning screw.

[0011] An outer shell covering the dual-axis motor is provided on the upper base plate. The outer shell extends backward into the interior of the adjustable positioning frame. A waterproof connector for connecting a wire to supply power to the dual-axis motor is provided at the rear end of the outer shell.

[0012] A threaded hole is formed in the upper base plate on the front side of the L-shaped support. A receiving hole corresponding to the threaded hole up and down is formed in the lower base plate. A limit adjusting bolt that can contact the front side of the mounting plate is threadedly connected in the threaded hole. The lower end of the limit adjusting bolt extends into the receiving hole.

[0013] With the above technical solution, the fixed connector of the present invention is installed on the centering base at the top of the tripod, and the tripod is placed on the measuring point. The total reflection prism assembly is correspondingly inserted and matched with the positioning connection pin in the middle of the mounting plate, so that the total reflection prism assembly is firmly installed on the mounting plate of the present invention.

[0014] When interference occurs during the surveying and mapping of multiple measuring points located on the same straight line using a total station, start the biaxial motors on the surveying and mapping platforms at one or several measuring points. The main shafts at both left and right ends of the biaxial motors simultaneously drive the rotation of two inner sleeves. The inner sleeves drive the rotation of the outer sleeves through the external torsion springs. The rotating shafts integrated with the outer sleeves drive the rotation of the connecting plates and the mounting plates. The mounting plates drive the total reflection prism assemblies arranged on the upper parts to rotate, thereby reducing the height of the total reflection prism assemblies, so that the prisms on the total reflection prism assemblies are not on the light rays emitted by the total station, thus avoiding interference.

[0015] According to the rotation speed of the biaxial motors, set the time from startup to stop of the biaxial motors. The elastic coupling uses a torsion spring arranged between the inner sleeve and the outer sleeve. The biaxial motors drive the inner sleeves, and then drive the rotation of the outer sleeves through the torsion springs. The outer sleeves drive the total reflection prism assemblies to rotate around the center line of the outer sleeves through the rotating shafts, connecting plates and mounting plates. When rotating forward, the height of the total reflection prism assemblies decreases, and the V-shaped grooves at the rear sides of the mounting plates are separated from the positioning ball heads at the front ends of the positioning screws. When the front sides of the mounting plates contact the upper ends of the limit adjusting bolts, the biaxial motors stop after a delay of 0.5 - 2 seconds. In this way, the torsion springs can store energy, and the front sides of the mounting plates are pressed against the tops of the limit adjusting bolts, thereby ensuring the stability and reliability of the total reflection prism assemblies. When adjusting the height of the total reflection prism assemblies to move upward, start the biaxial motors. The main shafts of the biaxial motors rotate in the reverse direction. According to the above torque transmission process, drive the mounting plates and the total reflection prism assemblies to rotate backward and upward. When the V-shaped grooves at the rear sides of the mounting plates contact the positioning ball heads at the front ends of the positioning screws, the biaxial motors stop after a delay of 0.5 - 2 seconds. The torsion springs store energy, and the rear sides of the mounting plates are pressed against the positioning ball heads at the front ends of the positioning screws, thereby ensuring the stability and reliability of the total reflection prism assemblies when the height is the highest (vertical state).

[0016] After adjusting the base and each component on the base to rotate horizontally around the fixed disk in place, rotate the handle to drive the locking screw to move axially, and drive the pressing column to move inward along the light hole until the inner end of the pressing column is pressed against the annular groove on the outer circle of the fixed disk. Since the inner end of the pressing column is in top pressure fit with the conical surface at the bottom of the annular groove on the outer circle of the fixed disk, there will be a component force that presses the fixed disk upward, so that there is a certain pressure between the top surface of the fixed connector and the bottom surface of the lower substrate, ensuring the reliability of the positioning after rotation adjustment.

[0017] The inner sleeve is press-fitted with the plane milled on the main shaft of the dual-axis motor through the first set screw, which is convenient for processing, manufacturing, installation and disassembly. A rotating shaft is integrally provided coaxially at the outer end of the outer sleeve. The rotating shaft is rotatably connected to the support plate through a bearing. The two rotating shafts are connected to the mounting plate through a connecting plate. This split manufacturing and installation structure not only has good reliability, but also makes the structure more compact and convenient for installation and disassembly. The positioning connecting pin provided in the middle of the mounting plate is used to install the total reflection prism assembly.

[0018] The positioning screw can adjust the length of the positioning ball head at the front end extending forward, thereby adjusting the pressing and matching position with the V-shaped groove at the rear side of the mounting plate, that is, adjusting the highest height of the total reflection prism assembly. After adjusting the position of the positioning screw, the second set screw presses against the positioning screw to prevent the positioning screw from rotating and ensure that the front and rear positions of the positioning ball head remain unchanged. The cooperation between the V-shaped groove and the positioning ball head can also position the mounting plate in the left and right directions.

[0019] Since the present invention is used outdoors, a housing that covers the dual-axis motor is provided on the substrate, and a waterproof connector is provided, which has the function of waterproof and dustproof.

[0020] Since the limit adjustment bolt is threadedly connected to the upper substrate, the height of the limit adjustment bolt can be adjusted by rotation, thereby adjusting the rotation angle of the mounting plate, that is, adjusting the distance that the total reflection prism assembly rotates downward.

[0021] The tripod, centering base, dual-axis motor, torsion spring, bearing, fixed connector and total reflection prism assembly in the present invention can all be purchased on the market.

[0022] In summary, the principle of the present invention is scientific and the structure is compact. By using a dual-axis motor to drive two elastic couplings and the prism mounting bracket and the total reflection prism assembly to rotate simultaneously, the height of the prism in the total reflection prism assembly is adjusted, so as to ensure that there is no interference phenomenon when measuring distances at multiple measurement points on the same straight line, and at the same time, it has good stability at high and low positions. And rotating and folding the total reflection prism assembly is also convenient for storage. Description of the Drawings

[0023] Figure 1 is a three-dimensional structural schematic diagram of the present invention from the front side perspective; Figure 2 is a three-dimensional structural schematic diagram of the present invention from the rear side perspective; Figure 3 is a front partial cross-sectional structural schematic diagram of the present invention; Figure 4 is Figure 3 the enlarged view of part A in Detailed Embodiment

[0024] The following further describes in detail the embodiments of the present invention in conjunction with the accompanying drawings and embodiments.

[0025] As Figures 1 - 4 shown, a high-precision optical mapping pan-tilt for preventing observation interference of the present invention includes a horizontally arranged connecting seat. A base is rotatably connected to the top of the connecting seat. A dual-axis motor 1 with a center line horizontally arranged in the left-right direction is provided on the base. Prism mounting brackets are respectively connected to the left and right ends of the main shaft of the dual-axis motor 1 through an elastic coupling 2. An adjustable positioning frame 3 for positioning the prism mounting brackets is provided at the rear side of the base.

[0026] The connecting seat includes a fixed connector 4 in a disc shape. Three conical positioning heads 5 are circumferentially arranged at the lower end of the fixed connector 4. A stud 6 is provided at the center of the upper end of the fixed connector 4. A fixed disc 7 is threadedly connected to the stud 6. An annular groove 8 is opened on the outer circle of the fixed disc 7. The lower part of the bottom of the annular groove 8 is a cylindrical surface 9, and the upper middle part of the bottom of the annular groove 8 is a conical surface 10 that is thick at the top and thin at the bottom.

[0027] The base includes an upper substrate 12 and a lower substrate 13 connected by a first bolt 11. An installation hole with the same diameter as the fixed disc 7 is opened at the center of the lower substrate 13. The bottom surface of the lower substrate 13 is in contact with the top surface of the fixed connector 4. The fixed disc 7 extends into the installation hole of the lower substrate 13. There is a gap between the top surface of the fixed disc 7 and the bottom surface of the upper substrate 12. A locking device for fastening the base and the connecting seat is provided on the side of the lower substrate 13.

[0028] The locking device includes a locking screw 14, a pressing column 15, a handle 16, and a guiding column 17. A through threaded hole 18 and a light hole 19 are opened in the lower substrate 13 along the radial direction of the fixed disc 7. The locking screw 14 extends into and is threadedly connected to the threaded hole 18. The pressing column 15 is arranged in the light hole 19. A guiding hole 20 is provided in the lower substrate 13 below the light hole 19. The length direction of the guiding hole 20 is parallel to the center line of the light hole 19. The guiding column 17 is a screw threadedly connected to the pressing column 15. The head of the screw slides in the guiding hole 20. The handle 16 is fixedly arranged at the outer end of the locking screw 14. The outer end of the guiding column 17 is in top pressure fit with the inner end of the locking screw 14. The inner end of the pressing column 15 is in top pressure fit with the conical surface 10 at the bottom of the annular groove 8 on the outer circle of the fixed disc 7. The inner end of the guiding column 17 is spherical.

[0029] In the middle of the upper surface of the upper substrate 12, an L-shaped support 22 is provided through a second bolt 21, and a biaxial motor 1 is provided on the L-shaped support 22 through a third bolt 23; the elastic coupling 2 includes an inner sleeve 24, an outer sleeve 25 and a torsion spring 26. The main shaft of the biaxial motor 1 extends into one end port of the inner sleeve 24. The inner sleeve 24 is press-connected to the plane milled on the outer circle of the main shaft through a first set screw 27 connected by a radial thread. The other end of the inner sleeve 24 axially extends into the outer sleeve 25. The torsion spring is arranged in the outer sleeve 25 and coaxially sleeved on the outer circle of the inner sleeve 24. The spring arms 28 extending from both ends of the torsion spring 26 respectively pass through the inner sleeve 24 and the outer sleeve 25. A rotating shaft 29 is integrally provided coaxially at the outer end of the outer sleeve 25. A support plate 30 is fixedly provided on each of the left and right sides of the upper substrate 12. The rotating shaft 29 is rotatably connected to the support plate 30 through a bearing 31.

[0030] The prism mounting bracket includes a mounting plate 32 located above the biaxial motor 1. At the bottoms of the left and right sides of the mounting plate 32, connecting plates 34 are fixedly connected through fourth bolts 33. A U-shaped groove sleeving the outer circle of the rotating shaft 29 is provided at the lower part of the connecting plate 34. The connecting plate 34 and the rotating shaft 29 are connected through a fifth bolt 35. A positioning connecting pin 36 is threadedly connected in the middle of the mounting plate 32; a prism limiting block 44 is provided on the mounting plate 32.

[0031] The adjustable positioning frame 3 is integrally of a portal structure. A positioning screw rod 37 is threadedly connected at the middle position of the upper part of the adjustable positioning frame 3. A V-shaped groove 38 penetrating up and down is provided in the middle of the rear side of the mounting plate 32. A positioning ball head 39 extending into the V-shaped groove 38 and press-fitting with the mounting plate 32 is provided at the front end of the positioning screw rod 37. A second set screw 40 is threadedly connected to the top of the adjustable positioning frame 3. The lower end of the second set screw 40 is press-connected to the outer circle of the positioning screw rod 37.

[0032] A housing 41 covering the biaxial motor 1 is provided on the upper substrate 12. The housing 41 extends backward into the adjustable positioning frame 3. A waterproof joint 42 for connecting a wire to supply power to the biaxial motor 1 is provided at the rear end of the housing 41.

[0033] A threaded hole 18 is provided on the upper substrate 12 in front of the L-shaped support 22. A receiving hole corresponding to the threaded hole 18 up and down is provided on the lower substrate 13. A limit adjusting bolt 43 that can contact the front side of the mounting plate 32 is threadedly connected in the threaded hole 18. The lower end of the limit adjusting bolt 43 extends into the receiving hole.

[0034] The fixed connector 4 of the present invention is installed on the centering base at the top of the tripod, and the tripod is placed at the measurement point. The total reflection prism assembly 45 is correspondingly inserted and fitted with the positioning connecting pin 36 in the middle of the mounting plate 32, so that the total reflection prism assembly 45 is firmly installed on the mounting plate 32 of the present invention.

[0035] When interference occurs during the surveying and mapping of multiple measurement points located on the same straight line using a total station, start the dual-axis motors 1 on the surveying and mapping platforms at one or several measurement points. The main shafts at both left and right ends of the dual-axis motor 1 simultaneously drive the rotation of two inner sleeves 24. The inner sleeves 24 drive the rotation of the outer sleeves 25 through the external torsion springs 26. The rotating shafts 29 integrated with the outer sleeves 25 drive the rotation of the connecting plates 34 and the mounting plates 32. The mounting plates 32 drive the rotation of the total reflection prism assemblies 45 arranged on the upper part, thereby reducing the height of the total reflection prism assemblies 45, making the prisms on the total reflection prism assemblies 45 not on the light rays emitted by the total station, thus avoiding interference.

[0036] According to the rotation speed of the dual-axis motor 1, set the time from the start to the stop of the dual-axis motor 1. The elastic coupling 2 is provided with a torsion spring 26 between the inner sleeve 24 and the outer sleeve 25. The dual-axis motor 1 drives the inner sleeve 24, and then drives the rotation of the outer sleeve 25 through the torsion spring 26. The outer sleeve 25 drives the total reflection prism assembly 45 to rotate around the center line of the outer sleeve 25 through the rotating shaft 29, the connecting plate 34 and the mounting plate 32. When rotating forward, the height of the total reflection prism assembly 45 decreases, and the V-shaped groove 38 on the rear side of the mounting plate 32 disengages from the positioning ball head 39 at the front end of the positioning screw 37. When the front side of the mounting plate 32 contacts the upper end of the limit adjusting bolt 43, the dual-axis motor 1 stops after a delay of 0.5 - 2 seconds. In this way, the torsion spring 26 can store energy, and the front side of the mounting plate 32 is pressed against the top of the limit adjusting bolt 43, thereby ensuring the stability and reliability of the total reflection prism assembly 45. When adjusting the height of the total reflection prism assembly 45 to move upward, start the dual-axis motor 1. The main shaft of the dual-axis motor 1 rotates in the reverse direction. According to the above torque transmission process, drive the mounting plate 32 and the total reflection prism assembly 45 to rotate backward and upward. When the V-shaped groove 38 on the rear side of the mounting plate 32 contacts the positioning ball head 39 at the front end of the positioning screw 37, the dual-axis motor 1 stops after a delay of 0.5 - 2 seconds. The torsion spring 26 stores energy, and the rear side of the mounting plate 32 is pressed against the positioning ball head 39 at the front end of the positioning screw 37, thereby ensuring the stability and reliability of the total reflection prism assembly 45 at the highest height (vertical state).

[0037] After adjusting the base and each component on the base to rotate in place horizontally around the fixed disk 7, rotate the handle 16 to drive the axial movement of the locking screw 14, and drive the pressure column 15 to move inward along the light hole 19 until the inner end of the pressure column 15 is pressed against the annular groove 8 on the outer circle of the fixed disk 7. Since the inner end of the pressure column 15 is in top pressure fit with the conical surface 10 at the bottom of the annular groove 8 on the outer circle of the fixed disk 7, there will be a component force that presses the fixed disk 7 upward, thereby making the top surface of the fixed connector 4 have a certain pressure with the bottom surface of the lower substrate 13, ensuring the reliability of the positioning after rotation adjustment.

[0038] The inner sleeve 24 is press-fitted with the plane milled on the main shaft of the dual-axis motor 1 through the first set screw 27, which is convenient for processing, manufacturing, installation, disassembly. A rotating shaft 29 is integrally provided coaxially at the outer end of the outer sleeve 25. The rotating shaft 29 is rotatably connected to the support plate 30 through a bearing 31. The two rotating shafts 29 are connected to the mounting plate 32 through a connecting plate 34. This split manufacturing and installation structure not only has good reliability, but also makes the structure more compact and convenient for installation and disassembly. The positioning connection pin 36 provided in the middle of the mounting plate 32 is used for installing the total reflection prism assembly 45.

[0039] The positioning screw 37 can adjust the length of the front positioning ball head 39 extending forward, thereby adjusting the pressing and fitting position with the V-shaped groove 38 on the rear side of the mounting plate 32, that is, adjusting the maximum height of the total reflection prism assembly 45. After adjusting the position of the positioning screw 37, the second set screw 40 presses against the positioning screw 37 to prevent the positioning screw 37 from rotating and ensure the front and rear positions of the positioning ball head 39 remain unchanged. The cooperation between the V-shaped groove 38 and the positioning ball head 39 can also position the mounting plate 32 in the left and right directions.

[0040] Since the present invention is used outdoors, a housing 41 covering the dual-axis motor 1 is provided on the substrate, and a waterproof connector 42 is provided, which has the function of waterproof and dustproof.

[0041] Since the limit adjusting bolt 43 is threadedly connected to the upper substrate 12, the height of the limit adjusting bolt 43 can be adjusted by rotation, thereby adjusting the rotation angle of the mounting plate 32, that is, adjusting the distance that the total reflection prism assembly 45 rotates downward.

[0042] The tripod, centering base, dual-axis motor 1, torsion spring 26, bearing 31, fixed connector 4 and total reflection prism assembly 45 in the present invention can all be purchased on the market.

[0043] The above embodiments illustrate the basic principles and characteristics of the present invention. However, the above only illustrates the preferred embodiments of the present invention and is not limited by the embodiments. Those of ordinary skill in the art, inspired by this patent, can make many forms of deformation and improvement without departing from the purpose of the present invention and the scope protected by the claims. These all fall within the protection scope of the present invention. Therefore, the scope of the present invention patent and protection should be subject to the appended claims.

Claims

1. A high-precision optical mapping pan-tilt for preventing observation interference, characterized in that: It includes a horizontally arranged connecting seat, on the top of which a base is rotatably connected. A dual-axis motor with its central axis horizontally arranged in the left-right direction is provided on the base. The left and right ends of the main shaft of the dual-axis motor are respectively connected to a prism mounting bracket through an elastic coupling. An adjustable positioning frame for positioning the prism mounting bracket is provided at the rear side of the base.

2. The high-precision optical mapping pan-tilt for preventing observation interference according to claim 1, characterized in that: The connecting seat includes a fixed connector in the shape of a disc. Three conical positioning heads are circumferentially arrayed at the lower end of the fixed connector. A stud is provided at the center of the upper end of the fixed connector, and a fixed disc is threadedly connected to the stud. An annular groove is formed in the outer circle of the fixed disc. The lower part of the bottom of the annular groove is a cylindrical surface, and the upper middle part of the bottom of the annular groove is a conical surface that is thick at the top and thin at the bottom.

3. The high-precision optical mapping pan-tilt for preventing observation interference according to claim 2, wherein: The base includes an upper substrate and a lower substrate connected by a first bolt. An installation hole with the same diameter as the fixed disc is formed at the center of the lower substrate. The bottom surface of the lower substrate is in contact with the top surface of the fixed connector. The fixed disc extends into the installation hole of the lower substrate. There is a gap between the top surface of the fixed disc and the bottom surface of the upper substrate. A locking device for fastening the base to the connecting seat is provided at the side of the lower substrate.

4. The high-precision optical mapping pan-tilt for preventing observation interference according to claim 3, characterized in that: The locking device includes a locking screw, a pressing column, a handle, and a guiding column. A threaded hole and a light hole that penetrate in the radial direction of the fixed disc are formed in the lower substrate. The locking screw extends into and is threadedly connected to the threaded hole. The pressing column is arranged in the light hole. A guiding hole is provided in the lower substrate below the light hole, and the length direction of the guiding hole is parallel to the center line of the light hole. The guiding column is a screw threadedly connected to the pressing column, and the head of the screw slides in the guiding hole. The handle is fixedly arranged at the outer end of the locking screw. The outer end of the guiding column is in top pressure fit with the inner end of the locking screw. The inner end of the pressing column is in top pressure fit with the conical surface at the bottom of the annular groove on the outer circle of the fixed disc. The inner end of the guiding column is spherical.

5. The high-precision optical mapping pan-tilt for preventing observation interference according to claim 3, wherein: An L-shaped support is provided in the middle of the upper surface of the upper substrate through a second bolt. The dual-axis motor is provided on the L-shaped support through a third bolt. The elastic coupling includes an inner sleeve, an outer sleeve, and a torsion spring. The main shaft of the dual-axis motor extends into one end port of the inner sleeve. The inner sleeve is press-connected to the plane milled on the outer circle of the main shaft through a first set screw connected radially by thread. The other end of the inner sleeve extends coaxially into the outer sleeve. The torsion spring is arranged in the outer sleeve and coaxially sleeved on the outer circle of the inner sleeve. The spring arms extending from both ends of the torsion spring respectively pass through the inner sleeve and the outer sleeve. A rotating shaft is integrally provided coaxially at the outer end of the outer sleeve. A support plate is fixedly provided on each of the left and right sides of the upper substrate. The rotating shaft is rotatably connected to the support plate through a bearing.

6. The high-precision optical mapping pan-tilt for preventing observation interference according to claim 5, characterized in that: The prism mounting bracket includes a mounting plate located above the dual-axis motor. The bottom of the left and right sides of the mounting plate is fixedly connected to a connecting plate through a fourth bolt. A U-shaped groove sleeved on the outer circle of the rotating shaft is provided at the lower part of the connecting plate. The connecting plate and the rotating shaft are connected through a fifth bolt. A positioning connecting pin is threadedly connected to the middle of the mounting plate. A prism limiting block is provided on the mounting plate.

7. The high-precision optical mapping pan-tilt for preventing observation interference according to claim 6, characterized in that: The adjustable positioning frame is integrally in a portal structure. A positioning screw is threadedly connected to the middle position of the upper part of the adjustable positioning frame. A V-shaped groove that penetrates up and down is formed in the middle of the rear side of the mounting plate. A positioning ball head that extends into the V-shaped groove and is in press fit with the mounting plate is provided at the front end of the positioning screw. A second set screw is threadedly connected to the top of the adjustable positioning frame, and the lower end of the second set screw is in press fit with the outer circle of the positioning screw.

8. The high-precision optical mapping pan-tilt for preventing observation interference according to claim 7, wherein: An outer shell covering the biaxial motor is provided on the upper substrate. The outer shell extends backward into the adjustable positioning frame, and a waterproof connector for connecting a wire to supply power to the biaxial motor is provided at the rear end of the outer shell.

9. The high-precision optical mapping pan-tilt for preventing observation interference according to claim 6, characterized in that: Threaded holes are provided on the upper substrate in front of the L-shaped support. Accommodating holes corresponding to the threaded holes up and down are provided on the lower substrate. A limit adjusting bolt that can contact the front side of the mounting plate is threadedly connected in the threaded hole, and the lower end of the limit adjusting bolt extends into the accommodating hole.

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