CN116817877B - Leveling device for topographic survey - Google Patents
Leveling device for topographic survey Download PDFInfo
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- CN116817877B CN116817877B CN202311092113.4A CN202311092113A CN116817877B CN 116817877 B CN116817877 B CN 116817877B CN 202311092113 A CN202311092113 A CN 202311092113A CN 116817877 B CN116817877 B CN 116817877B
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- 230000007246 mechanism Effects 0.000 claims abstract description 83
- 125000006850 spacer group Chemical group 0.000 claims description 10
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- 239000011425 bamboo Substances 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 19
- 239000002689 soil Substances 0.000 description 13
- 238000003384 imaging method Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Abstract
The application discloses a leveling device for terrain surveying, which relates to the technical field of leveling, and comprises a leveling mechanism, wherein supporting components are arranged on two sides of the leveling mechanism, an auxiliary ranging mechanism is arranged at the top of the leveling mechanism, and a measuring mechanism is arranged at the top of the auxiliary ranging mechanism; the horizontal mechanism comprises a bearing column, and a transparent cover is arranged at the bottom of the bearing column. The application is provided with the measuring mechanism, can adjust the angle of the measuring instrument up and down, is suitable for complex terrains, combines the auxiliary ranging mechanism to assist in adjusting the measuring instrument for measurement and calibration, has the characteristics of high precision and high stability, can provide an accurate horizontal line, and can realize more accurate leveling measurement by assisting in adjusting the measuring instrument by the auxiliary ranging mechanism.
Description
Technical Field
The application relates to the technical field of leveling, in particular to a leveling device for topographic survey.
Background
Leveling devices and rods are used in the measuring or leveling process. Leveling devices include measuring telescopes and devices in the form of levels, for example, that ensure that the optical axis of the measuring telescope is substantially horizontal. If the leveling device is mounted on a tripod, the measuring horizon can be generated by means of a level after horizontal calibration by using three adjustable anchor screws of the tripod.
For example, the disclosed application patent leveling device and leveling method, publication number CN102334007a, the present application relates to a leveling device having: an observation device defining a calibration axis and which can be calibrated with a leveling rod to determine a height; an imaging system spatially separated from the observation device and having an imaging lens assigned a lens principal plane and a detector having a recording surface located in the image plane; and an evaluation device connected to the detector, wherein the height information of the leveling rod at the height of the calibration axis can be provided as a measured height by the evaluation device using the detector information. The field of view of the imaging system is defined by the imaging lens and the detector as a maximum angular range in which points can be recorded by the imaging lens by means of the recording surface of the detector. According to the application, the imaging lens and the detector are designed and arranged relative to each other and relative to a lens plane containing the calibration axis such that all points of the lens plane which lie within the field of view are imaged in focus simultaneously on the recording surface of the detector.
In the measurement of the application, the system is combined with the leveling device to realize high-precision detection, the measured azimuth is required to be adjusted preliminarily when the leveling device is used preliminarily, the whole measuring device is required to be arranged on a vertical horizontal plane, the measuring rod is required to be aligned with the angle and the azimuth of the repeated adjustment measurement, the leveling line is required to be searched for in a longer time under the condition of no auxiliary device for calibration, and the leveling precision is easy to deviate in complex terrains;
furthermore, leveling devices are usually fixed and not adjustable, because they are designed to provide a flat reference level, some advanced leveling devices may have fine tuning functions, which can be fine tuned on the level basis, and these adjustments are usually used to correct errors in the instrument itself, rather than to adjust the level, and most leveling devices are not capable of adjusting up and down to terrain with large drop heights, so the present application provides a leveling device for a terrain survey to meet the needs.
Disclosure of Invention
The application aims to provide a leveling device for topographic survey, which can effectively solve the problems in the background art.
In order to achieve the above purpose, the present application provides the following technical solutions: a leveling device for a terrain survey, comprising:
the horizontal mechanism comprises a bearing column, a transparent cover is arranged at the bottom of the bearing column, a steel wire is arranged at the top of an inner cavity of the transparent cover, one end of the steel wire is connected with a lead drop, and the lead drop is used for assisting in vertical calibration of the bearing column;
the support assembly comprises a first support rod, one end of the first support rod is rotatably connected with a bottom plate, a barb and a plunger are arranged at the bottom of the bottom plate, and the barb and the plunger are used for assisting the first support rod to support;
the auxiliary distance measuring mechanism comprises a laser instrument and two light condensing plates, wherein the inner walls of the two light condensing plates are respectively provided with a reflecting plate, and the reflecting plates are used for assisting the laser instrument to collect light;
the measuring mechanism comprises a supporting frame, a half tooth is installed in the internal rotation of the supporting frame, a measuring instrument is arranged on the upper portion of the half tooth, an adjusting toothed bar is arranged in the supporting frame, and the adjusting toothed bar is meshed with the half tooth and used for adjusting the measuring angle of the measuring instrument.
Preferably, a top disc is arranged at the top of the bearing column, a limiting rope is arranged at the bottom of the outer surface of the lead weight, and one end of the limiting rope is fixedly connected with the bottom of the inner wall of the transparent cover;
the bottom of transparent cover is provided with the spliced pole, the bottom of spliced pole is provided with the pointed cone, the inside movable mounting of pointed cone has the cross frame, the inside of cross frame is provided with the spring.
Preferably, the second support rod is slidably mounted on the outer surface of the first support rod, the second support rod is rotatably mounted at the bottom of the top disc, and the two second support rods and the bearing column form an obtuse triangle.
Preferably, the auxiliary ranging mechanism further comprises a connecting piece arranged at the top of the top disc, four supporting columns which are distributed at equal intervals are arranged on the upper portion of the connecting piece, a supporting plate is arranged on the upper portion of each supporting column, a rotating column is installed in the supporting plate in a rotating mode, an adjusting disc is arranged on the upper portion of each rotating column, a connecting rod is arranged at the bottom of each rotating column, the connecting rod is installed in the connecting rod in a rotating mode, and the connecting rod is fixedly installed in the middle of the upper end of the laser instrument.
Preferably, the surface lower part of swivel post is provided with the regulating plate, two equal fixed mounting of spotlight board is in the lower extreme of regulating plate, two be provided with the filter between the reflector panel, one side of filter is provided with two spacers, two be provided with the condensing lens between the spacer, two one side of spacer is provided with the printing opacity mirror jointly, the upper end of connecting piece is provided with a cover section of thick bamboo.
Preferably, the lower end of the supporting frame is provided with a mounting cover, and the mounting cover is fixedly mounted on the upper part of the cover cylinder.
Preferably, the adjustment plate is located inside the mounting cover.
Preferably, a notch is formed in the outer surface of the mounting cover for assisting in rotating the adjusting disc.
In summary, the application has the technical effects and advantages that:
the application is provided with the measuring mechanism, can adjust the angle of the measuring instrument up and down, is suitable for complex terrains, combines the auxiliary ranging mechanism to assist in adjusting the measuring instrument for measurement and calibration, has the characteristics of high precision and high stability, can provide an accurate horizontal line, and can realize more accurate leveling measurement by assisting in adjusting the measuring instrument by the auxiliary ranging mechanism.
The auxiliary ranging mechanism and the measuring mechanism are reasonably arranged in structure, the auxiliary ranging mechanism refracts the laser line into the laser surface through refraction, and the laser surface covers a larger measuring area, so that the measuring mechanism can accurately adjust according to the direction point of the laser surface when the measuring mechanism is used for measuring, and more accurate measuring results can be provided for the measuring mechanism;
the horizontal mechanism and the support component are combined with the design of complex terrains, the horizontal mechanism and the support component can assist the measurement mechanism to measure, the vertical support structure of the horizontal mechanism is designed to support according to the measurement of the auxiliary ranging mechanism and the measurement mechanism, the horizontal mechanism can be accurately and surely inserted into a detection base point, the accuracy of detection data of the measurement mechanism is ensured, and the support component is arranged to support according to the detection position of a user, so that the horizontal mechanism is prevented from rolling when the user adjusts.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a first perspective of a leveling device for a terrain survey;
FIG. 2 is a schematic view of a second perspective of the leveling device for a terrain survey;
FIG. 3 is a schematic view of a third perspective view of a leveling device for a terrain survey;
FIG. 4 is a schematic view of a three-dimensional connection structure of the support assembly;
FIG. 5 is a schematic view of a partial perspective connection structure of the support assembly;
FIG. 6 is a schematic view of a three-dimensional connection structure of a horizontal mechanism;
FIG. 7 is a schematic view of a partial perspective connection of a horizontal mechanism;
FIG. 8 is a schematic view of a three-dimensional connection of the auxiliary ranging mechanism and the measuring mechanism;
FIG. 9 is a cross-sectional view of a three-dimensional connection structure of the auxiliary ranging mechanism;
FIG. 10 is a schematic view of a three-dimensional connection structure of the auxiliary ranging mechanism;
FIG. 11 is a schematic view of an internal three-dimensional connection structure of the auxiliary ranging mechanism;
FIG. 12 is a schematic view of a three-dimensional connection structure of a light condensing plate and a light reflecting plate;
FIG. 13 is a schematic view of a three-dimensional connection structure of a filter and a lens;
FIG. 14 is an enlarged view of a partial three-dimensional connection of the auxiliary ranging mechanism;
FIG. 15 is a schematic view of a three-dimensional connection structure of the measuring mechanism;
fig. 16 is a schematic view of a three-dimensional connection structure of the gauge and the half teeth.
In the figure: 1. a horizontal mechanism; 11. a top plate; 12. a bearing column; 13. a connecting column; 14. a transparent cover; 15. a steel wire; 16. a lead weight; 17. a limit rope; 18. a cross frame; 19. a spring; 111. a pointed cone; 2. a support assembly; 21. a first support bar; 22. a second support bar; 23. a bottom plate; 24. a barb; 25. inserting a column; 3. an auxiliary ranging mechanism; 31. a connecting piece; 32. a cover cylinder; 33. a support column; 34. an adjusting plate; 35. a support plate; 36. a laser instrument; 37. a condensing plate; 38. a connecting rod; 39. an adjusting plate; 311. a light reflecting plate; 312. a chain link; 313. a rotating column; 314. a light-transmitting lens; 315. a spacer; 316. a filter lens; 317. a condenser; 4. a measuring mechanism; 41. a mounting cover; 42. adjusting the toothed bar; 43. a support frame; 44. half teeth; 45. a measuring instrument.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
1-16, a leveling device for topography surveys, includes horizontal mechanism 1, and horizontal mechanism 1's both sides are provided with supporting component 2, and horizontal mechanism 1's top is provided with auxiliary ranging mechanism 3, and auxiliary ranging mechanism 3's top is provided with measuring mechanism 4.
It should be noted that, when surveying a complex terrain of a building, firstly, the horizontal mechanism 1 is inserted into sandy soil based on the terrain of the building, the whole horizontal mechanism 1 is inserted into the sandy soil in a vertical state according to a vertical device arranged inside the horizontal mechanism 1, and then a user adjusts the supporting assembly 2 to support the ground for assisting the horizontal mechanism 1 to support so as to ensure that the horizontal mechanism 1 does not incline during measurement;
then, the auxiliary ranging mechanism 3 is regulated to assist the measuring mechanism 4 in measuring and calibrating, the auxiliary ranging mechanism 3 has the characteristics of high precision and high stability, an accurate horizontal line can be provided, and more accurate leveling measurement can be realized by assisting the measuring mechanism 4 in measuring and calibrating through the auxiliary ranging mechanism 3;
because the auxiliary distance measuring mechanism 3 can quickly emit a light surface, complex adjustment and alignment processes are not needed, and the auxiliary distance measuring mechanism 4 can improve the measuring efficiency and reduce the measuring time when used for measuring and calibrating;
and because the auxiliary ranging mechanism 3 can provide a visible horizontal line in a longer distance range, a measurer can intuitively observe the position and the flatness of the horizontal line, visual accuracy verification is provided for the user, and the accuracy of measurement is ensured.
The horizontal mechanism 1 comprises a bearing column 12, a transparent cover 14 is arranged at the bottom of the bearing column 12, a steel wire 15 is arranged at the top of an inner cavity of the transparent cover 14, one end of the steel wire 15 is connected with a lead weight 16, and the lead weight 16 is used for assisting in vertical calibration of the bearing column 12;
the top of the bearing column 12 is provided with a top disc 11, the bottom of the outer surface of the lead weight 16 is provided with a limiting rope 17, and one end of the limiting rope 17 is fixedly connected with the bottom of the inner wall of the transparent cover 14;
the bottom of the transparent cover 14 is provided with a connecting column 13, the bottom of the connecting column 13 is provided with a pointed cone 111, a cross frame 18 is movably arranged in the pointed cone 111, and a spring 19 is arranged in the cross frame 18;
the cross frame 18 is in a shape shown in fig. 7, and the cross frame 18 mainly comprises an upper disc and a bottom cross convex frame, so that the supporting area of the pointed cone 111 can be increased when the cross frame is inserted into a soft land.
It should be noted that, when in use, the connecting column 13 is inserted downwards into the soil, when soft soil or sandy soil is encountered, the pointed cone 111 is firstly inserted into the sandy soil, the cross frame 18 is also driven to be inserted into the sandy soil along with the continuous downwards insertion of the pointed cone 111, the supporting area of the pointed cone 111 can be increased to prevent the whole connecting column 13 from tilting when the cross frame 18 is inserted into the soil, the extrusion spring 19 is also contracted when the cross frame 18 is inserted into the sandy soil, and the resilience force of the mortgage spring 19 is also exerted by the weight extrusion springs 19 of the connecting column 13 and the bearing column 12;
in order to ensure that the connecting post 13 is perpendicular to the ground when the connecting post 13 is inserted, a user can observe the lead weight 16 in the transparent cover 14, and the arranged limiting rope 17 is in the shape shown in fig. 6, so that the arrow part at the bottom end of the lead weight 16 is perpendicular to the vertical base point arranged at the bottom of the transparent cover 14 when the connecting post 13 is used, the limiting rope 17 can limit the offset angle of the lead weight 16, the lead weight 16 is ensured to be suspended in the transparent cover 14 all the time, and the lead weight 16 is prevented from scraping the transparent cover 14.
The support assembly 2 comprises a first support rod 21, one end of the first support rod 21 is rotatably connected with a bottom plate 23, the bottom of the bottom plate 23 is provided with a barb 24 and a plunger 25, and the barb 24 and the plunger 25 are used for assisting the first support rod 21 to support;
the outer surface of the first supporting rod 21 is slidably provided with a second supporting rod 22, the second supporting rod 22 is rotatably arranged at the bottom of the top plate 11, and the two second supporting rods 22 and the bearing column 12 form an obtuse triangle.
Further, after the user inserts the connecting post 13 vertically into the sandy soil, the user rotates the second support rod 22 to slide the first support rod 21, so that the first support rod 21 is abutted against the sandy soil, then the user rotates the bottom plate 23 to insert the barb 24 into the sandy soil through stepping, and then inserts the post 25 into the sandy soil, and a better base point can not easily shake due to the insertion mode of the barb 24 and the post 25;
and the second support bar 22 and the bearing post 12 form an obtuse triangle, and the arrangement is in the shape shown in fig. 1-3, so that the support assembly 2 can be supported in the direction that the user is not in the measuring station, and the support assembly 2 can resist the unintentional forward force applied by the user when the user measures and adjusts the auxiliary ranging mechanism 3 or the measuring mechanism 4, thereby ensuring that the connecting post 13 is not inclined perpendicular to the ground.
In combination with the auxiliary ranging mechanism 3 and the measuring mechanism 4 proposed in the first embodiment, the present embodiment provides a further technical solution of combining the auxiliary ranging mechanism 3 and the measuring mechanism 4.
The auxiliary ranging mechanism 3 comprises a laser instrument 36 and two light condensing plates 37, wherein the inner walls of the two light condensing plates 37 are respectively provided with a reflecting plate 311, and the reflecting plates 311 are used for assisting the laser instrument 36 to collect light;
the auxiliary ranging mechanism 3 further comprises a connecting piece 31 arranged at the top of the top disc 11, four supporting columns 33 which are distributed at equal intervals are arranged on the upper portion of the connecting piece 31, a supporting plate 35 is arranged on the upper portion of the four supporting columns 33, a rotating column 313 is rotatably arranged in the supporting plate 35, an adjusting disc 34 is arranged on the upper portion of the rotating column 313, a connecting rod 312 is arranged at the bottom of the rotating column 313, a connecting rod 38 is rotatably arranged in the connecting rod 312, and the connecting rod 38 is fixedly arranged in the middle of the upper end of the laser instrument 36.
It should be noted that, when surveying and measuring the terrain, firstly, the adjusting disc 34 is adjusted, the rotating of the adjusting disc 34 drives the rotating column 313 to rotate, the rotating of the rotating column 313 drives the chain link 312 to rotate, the chain link 312 drives the connecting link 38 to rotate, in order to make the laser 36 always perpendicular to the ground, the laser 36 can drive the connecting link 38 to rotate in the chain link 312 by its own weight, thereby ensuring that the laser 36 can be used perpendicular to the ground;
an adjusting plate 39 is arranged at the lower part of the outer surface of the rotating column 313, two light condensing plates 37 are fixedly arranged at the lower end of the adjusting plate 39, and a filter 316 is arranged between the two light reflecting plates 311;
wherein the filter 316 may change the overall color and color temperature of the scene;
the filter 316 may control light intensity, eliminate reflection, and reduce halation, and the polarizing filter may reduce or eliminate reflection from non-metallic surfaces, as well as halation effects caused by light scattering;
two spacers 315 are arranged on one side of the filter 316, a condenser 317 is arranged between the two spacers 315, a light-transmitting lens 314 is arranged on one side of the two spacers 315 together, and a cover tube 32 is arranged at the upper end of the connecting piece 31.
Further, when the measurement is performed, the laser instrument 36 emits light, the light passes through the two reflectors 311, the two reflectors 311 are used for refracting the light to collect the light, the light firstly passes through the filter 316 to adjust the intensity of the light, then the light refracts the collected light to form a light surface through the condenser 317 and irradiates the light through the light-permeable mirror 314, the emitted light surface irradiates through the cover tube 32, the emitted laser surface can be observed and positioned by human eyes, the measurement and calibration can be performed according to the approximate distance direction, the light is refracted through the condenser 317, the laser surface can be kept stable in the measurement process, the influence of external interference on the laser beam propagation is reduced, and the measurement stability and reliability are improved.
The measuring mechanism 4 comprises a supporting frame 43, a half tooth 44 is rotatably arranged in the supporting frame 43, a measuring instrument 45 is arranged on the upper portion of the half tooth 44, an adjusting toothed bar 42 is arranged in the supporting frame 43, and the adjusting toothed bar 42 is meshed with the half tooth 44 and used for adjusting the measuring angle of the measuring instrument 45.
The lower end of the support frame 43 is provided with a mounting cover 41, and the mounting cover 41 is fixedly mounted on the upper portion of the cover cylinder 32.
The adjustment plate 34 is located inside the mounting cover 41, and a notch is formed in the outer surface of the mounting cover 41 to assist in rotating the adjustment plate 34.
Furthermore, when leveling terrain, the leveling devices are usually fixed and unadjusted because the leveling devices are designed to provide a flat reference level line, some advanced leveling devices may have fine tuning functions, which can be performed on the level line, the fine tuning functions are usually used for correcting errors of the instrument rather than adjusting the height of the level line, and most leveling devices cannot adjust up and down to the terrain with the large drop;
when surveying terrains with large drop, a user can rotate the adjusting toothed bar 42 to drive the half teeth 44 to rotate, and the half teeth 44 rotate to drive the adjusting measuring instrument 45 to adjust the direction up and down, so that the surveying instrument is suitable for surveying different terrains, the user of the adjusting measuring instrument 45 does not need to independently measure, and when the adjusting measuring instrument 45 is used for measuring, the user needs to coordinate with the auxiliary ranging mechanism 3 for surveying;
firstly, a user needs to use the auxiliary ranging mechanism 3 to perform preliminary positioning on the measured terrain, and the auxiliary ranging mechanism 3 refracts the laser line into the laser surface to assist the measuring mechanism 4 to perform detection, so that the following advantages are achieved:
measurement accuracy is improved: after the laser line is refracted into a laser surface, a larger measuring area can be provided, and more measuring points can be covered, so that the measuring precision is improved;
the measurement efficiency is improved: the laser surface auxiliary measuring mechanism 4 can measure a plurality of points at the same time, so that the measuring efficiency is greatly improved, and the measuring time is saved;
the method is suitable for complex curved surface measurement: the laser surface auxiliary measuring mechanism 4 can be suitable for measuring complex curved surfaces, and can provide more accurate measuring results.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present application, and although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present application.
Claims (6)
1. A leveling device for a terrain survey, comprising:
the horizontal mechanism (1) comprises a bearing column (12), a transparent cover (14) is arranged at the bottom of the bearing column (12), a steel wire (15) is arranged at the top of an inner cavity of the transparent cover (14), one end of the steel wire (15) is connected with a lead weight (16), and the lead weight (16) is used for assisting in vertical calibration of the bearing column (12);
the support assembly (2) comprises a first support rod (21), one end of the first support rod (21) is rotatably connected with a bottom plate (23), a barb (24) and a plug-in column (25) are arranged at the bottom of the bottom plate (23), and the barb (24) and the plug-in column (25) are used for assisting the first support rod (21) to support;
the auxiliary distance measuring mechanism (3) comprises a laser instrument (36) and two light condensing plates (37), wherein the inner walls of the two light condensing plates (37) are respectively provided with a reflecting plate (311), and the reflecting plates (311) are used for assisting the laser instrument (36) to collect light;
the measuring mechanism (4) comprises a supporting frame (43), a half tooth (44) is rotatably arranged in the supporting frame (43), a measuring instrument (45) is arranged on the upper portion of the half tooth (44), an adjusting toothed bar (42) is arranged in the supporting frame (43), and the adjusting toothed bar (42) is meshed with the half tooth (44) and used for adjusting the measuring angle of the measuring instrument (45);
the top of the bearing column (12) is provided with a top disc (11), the bottom of the outer surface of the lead weight (16) is provided with a limiting rope (17), and one end of the limiting rope (17) is fixedly connected with the bottom of the inner wall of the transparent cover (14);
the bottom of the transparent cover (14) is provided with a connecting column (13), the bottom of the connecting column (13) is provided with a pointed cone (111), a cross frame (18) is movably arranged in the pointed cone (111), and a spring (19) is arranged in the cross frame (18);
the auxiliary ranging mechanism (3) further comprises a connecting piece (31) arranged at the top of the top disc (11), four supporting columns (33) which are distributed at equal intervals are arranged on the upper portion of the connecting piece (31), supporting plates (35) are arranged on the upper portions of the supporting columns (33), a rotating column (313) is installed in the supporting plates (35) in a rotating mode, an adjusting disc (34) is arranged on the upper portion of the rotating column (313), a connecting rod (312) is arranged at the bottom of the rotating column (313), a connecting rod (38) is installed in the connecting rod (312) in a rotating mode, and the connecting rod (38) is fixedly installed in the middle of the upper end of the laser instrument (36).
2. A leveling device for a terrain survey as claimed in claim 1, wherein: the outer surface of the first supporting rod (21) is slidably provided with a second supporting rod (22), the second supporting rod (22) is rotatably arranged at the bottom of the top disc (11), and the two second supporting rods (22) and the bearing column (12) form an obtuse triangle.
3. A leveling device for a terrain survey as claimed in claim 1, wherein: the outer surface lower part of swivel post (313) is provided with regulating plate (39), two equal fixed mounting of spotlight board (37) is in the lower extreme of regulating plate (39), two be provided with filter (316) between reflector panel (311), one side of filter (316) is provided with two spacers (315), two be provided with condensing lens (317) between spacer (315), two one side of spacer (315) is provided with printing opacity mirror (314) jointly, the upper end of connecting piece (31) is provided with cover section of thick bamboo (32).
4. A leveling device for a terrain survey as claimed in claim 1, wherein: the lower end of the supporting frame (43) is provided with a mounting cover (41), and the mounting cover (41) is fixedly arranged on the upper part of the cover cylinder (32).
5. A leveling device for a terrain survey as claimed in claim 1, wherein: the adjusting disk (34) is located inside the mounting cover (41).
6. A leveling device for a terrain survey as defined in claim 5, wherein: the outer surface of the mounting cover (41) is provided with a notch for assisting the rotation of the adjusting disc (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311092113.4A CN116817877B (en) | 2023-08-29 | 2023-08-29 | Leveling device for topographic survey |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311092113.4A CN116817877B (en) | 2023-08-29 | 2023-08-29 | Leveling device for topographic survey |
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| CN116817877A CN116817877A (en) | 2023-09-29 |
| CN116817877B true CN116817877B (en) | 2023-12-12 |
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| CN117405089B (en) * | 2023-12-15 | 2024-02-20 | 天津市计量监督检测科学研究院电子仪表实验所 | Laser level automatic correction instrument with calibration function |
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| EP3139127B1 (en) * | 2015-09-04 | 2020-02-26 | Leica Geosystems AG | Surveying pole |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212409706U (en) * | 2020-05-13 | 2021-01-26 | 李兴斌 | Hydraulic engineering construction survey and drawing laying-out device |
| CN113124282A (en) * | 2021-05-11 | 2021-07-16 | 冯飞 | Auxiliary device for construction engineering cost on-site surveying and mapping |
| CN113687374A (en) * | 2021-10-26 | 2021-11-23 | 枣庄高新区立正安装工程有限公司 | Horizontal calibration mechanism for measuring visual angle for distance measurement |
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