CN107339981B - Engineering measurement electric tripod and rapid centering and leveling method - Google Patents
Engineering measurement electric tripod and rapid centering and leveling method Download PDFInfo
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- CN107339981B CN107339981B CN201710470053.3A CN201710470053A CN107339981B CN 107339981 B CN107339981 B CN 107339981B CN 201710470053 A CN201710470053 A CN 201710470053A CN 107339981 B CN107339981 B CN 107339981B
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- tripod
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- centering
- leveling
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000005259 measurement Methods 0.000 title abstract description 18
- 238000013507 mapping Methods 0.000 claims description 6
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
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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 invention discloses an engineering measurement electric tripod, which comprises: surveying instrument, round collimator, tubular level pipe, centralizer, base, foot screw seat holding screw, foot screw, round bottom plate, tripod head, 2 articulated joints, tripod leg, 2 servo motor, 2 electronic flexible tripod legs. The invention also discloses a rapid centering and leveling method of the engineering measurement electric tripod, and by adopting the technical scheme of the invention, centering and leveling can be rapidly and accurately realized in engineering measurement.
Description
Technical Field
The invention belongs to the technical field of engineering measurement, and particularly relates to an engineering measurement electric tripod and a rapid centering and leveling method.
Background
In the field of civil engineering, engineering measurements are means and methods that are necessary in engineering of tunnels, bridges, roads, buildings, etc. In actual measurement, a large amount of measurement work is concentrated on centering and leveling of the instrument due to poor measurement environment, so that the measurement work efficiency is low and the precision is low. It follows that a rapid and precise centering and levelling of the instrument is particularly important in engineering measurement work, and will directly affect the efficiency of the operation of staff and the accuracy of the result.
At present, the measuring instrument in engineering needs an operator to perform repeated centering and leveling steps for many times, so that the centering and leveling of the instrument can be realized, and the working efficiency and the result precision are affected. The invention provides an electric tripod capable of rapidly and accurately realizing centering and leveling and a rapid centering and leveling method.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides an electric tripod for quickly and accurately realizing centering and leveling in engineering measurement and a quick centering and leveling method.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
an engineering survey electric tripod comprising: a surveying instrument (1), a round leveling instrument (2), a tubular leveling tube (3), a centering instrument (4), a base (5), a foot screw seat set screw (6), a foot screw (7), a round bottom plate (8), a tripod head (9), 2 articulated joints (10.1, 10.2), tripod legs (11), 2 servo motors (12.1, 12.2) and 2 electric telescopic tripod legs (13.1, 13.2),
the surveying instrument (1) is fixed on the base (5) and is used for measuring height difference, distance and angle; the round collimator (2) is arranged on the base (5) and is used for rough leveling; the tubular level (3) is fixed on the surveying instrument (1) and is used for precisely leveling; the centering device (4) is fixed on the surveying instrument (1) and used for observing whether a horizontal rotation axis (14) of the instrument is centered with a control point (15), a foot screw seat set screw (6) is used for fixing a foot screw (7), a round bottom plate (8) is connected with a tripod head (9) through the fixed screw (7), 2 articulated joints (10.1 and 10.2) are respectively connected with a tripod leg (11) and 2 electric telescopic tripod legs (13.1 and 13.2), 2 servo motors (12.1 and 12.2) are respectively fixed on the 2 electric telescopic tripod legs (13.1 and 13.2), and the lengths of the 2 tripod legs (13.1 and 13.2) are electrically and accurately adjusted.
A rapid centering and leveling method for an engineering measurement electric tripod comprises the following steps:
step (1), opening a tripod, keeping a tripod head (9) basically horizontal, installing a surveying and mapping instrument (1) on a base (5), and enabling the positions of three foot spirals (7) on the base (5) to correspond to three hinging joints (10) of the tripod;
step (2), fixing a tripod leg (11) at a preset position B, and simultaneously moving electric telescopic tripod legs (13.1 and 13.2) in a plane to enable a cross wire of a centering device (4) to coincide with a control point D, namely an axis OD of an instrument points to the position D, and simultaneously fixing foot points A and C of the electric telescopic tripod legs (13.1 and 13.2) respectively;
step (3), keeping the positions of the triangular support legs A, B, C fixed, fixing the lengths of the triangular support legs (11), accurately and quickly adjusting the electric telescopic triangular support legs (13.1 and 13.2) through the servo motor (12) respectively, and centering bubbles of the circular collimator (2) on the base (5), wherein the position of the pointing D point of the axis OD of the instrument is unchanged;
step (4), fixing one height of three foot spirals (7) on a base (5) at the bottom of a surveying instrument (1), horizontally rotating the surveying instrument (1) in a plane, enabling the axis direction of a tubular level (3) to be parallel to one side of a triangle on the base (5), rotating the unfixed foot spirals (7), lifting the height of the foot spirals (7) until the tubular level (3) is in the middle of a bubble in the direction, and adjusting the tubular level (3) to be in the middle of the bubble in the other direction, so that the bubble of the tubular level (3) is in the middle of the bubble in any direction;
and (5) checking the overlapping degree and error of the cross wire and the point D of the centering device (4) on the surveying and mapping instrument (1), checking the centering degree of the bubble of the tubular level (3) in any direction, and finishing the centering and leveling work of all instruments.
Preferably, in step (2), the distance error between the cross hair of the centralizer (4) and the point D must not exceed 3 mm.
Advantageous effects
The invention has the advantages that:
(1) The centering and leveling method can be completed at one time.
(2) The length of the tripod legs is adjusted by the servo motor more accurately, time is saved, so that the tripod is guaranteed to be centered and leveled rapidly and accurately, and the working efficiency and the centering and leveling precision are improved.
The invention has simple principle and convenient operation, can not only improve the speed of centering and leveling the instrument, but also ensure the precision of centering and leveling, and has important theoretical value and engineering application value.
Drawings
FIG. 1 is a schematic view of the electric tripod and the instrument mounting structure;
FIG. 2 is a schematic diagram of motorized triangular centering and leveling;
FIG. 3 schematically illustrates the correspondence between the foot spirals and the joints.
The device comprises a 1-surveying instrument, a 2-round leveling instrument, a 3-tubular leveling instrument, a 4-centering instrument, a 5-base, a 6-foot screw seat set screw, a 7-foot screw, an 8-round bottom plate, a 9-tripod head, 10.1, 10.2-hinge joints, 11-tripod legs, 12.1, 12.2-servo motors, 13.1, 13.2 electric telescopic tripod legs, 14-instrument axes and 15-measuring stations.
Detailed Description
As shown in fig. 1, an embodiment of the present invention provides an engineering measurement electric tripod including: a surveying instrument (1), a round leveling instrument (2), a tubular leveling tube (3), a centering instrument (4), a base (5), a foot screw seat set screw (6), a foot screw (7), a round bottom plate (8), a tripod head (9), 2 articulated joints (10.1, 10.2), tripod legs (11), 2 servo motors (12.1, 12.2) and 2 electric telescopic tripod legs (13.1, 13.2),
the surveying instrument (1) is fixed on the base (5) and is used for measuring height difference, distance and angle; the round collimator (2) is arranged on the base (5) and is used for rough leveling; the tubular level (3) is fixed on the surveying instrument (1) and is used for precisely leveling; the centering device (4) is fixed on the surveying instrument (1) and used for observing whether a horizontal rotation axis (14) of the instrument is centered with a control point (15), a foot screw seat set screw (6) is used for fixing a foot screw (7), a round bottom plate (8) is connected with a tripod head (9) through the fixed screw (7), 2 articulated joints (10.1 and 10.2) are respectively connected with a tripod leg (11) and 2 electric telescopic tripod legs (13.1 and 13.2), 2 servo motors (12.1 and 12.2) are respectively fixed on the 2 electric telescopic tripod legs (13.1 and 13.2), and the lengths of the 2 tripod legs (13.1 and 13.2) are electrically and accurately adjusted.
As shown in fig. 2, first, a regular triangle is defined around the control point D, the triangle center is made to substantially coincide with the control point D, the foot screw (7) corresponds to the joint (10), and the circular base plate (8) is fixed to the frame head (9). The tripod legs (11) are fixed at the point B at the preset position, and meanwhile, the lengths of the electric telescopic tripod legs (13.1 and 13.2) are adjusted, so that the instrument is convenient and high, the length of the tripod legs (11) is fixed, the tripod legs are observed through the centering device (4), and the cross wire of the centering device (4) is overlapped with the control point D. The foot points A and C of the electric telescopic tripod legs (13.1 and 13.2) are respectively fixed, and the lengths of the electric telescopic tripod legs (13.1 and 13.2) are respectively adjusted through the servo motor (12) so as to center the bubble of the circular level (2). Fixing the height of one of the three foot spirals (7), respectively adjusting the heights of the other two foot spirals (7), centering the air bubble of the tubular level tube (3) in the corresponding direction, and finishing the steps to finish the centering and leveling of the instrument.
The embodiment of the invention also provides a rapid centering and leveling method of the engineering measurement electric tripod, which is suitable for centering and leveling of various engineering measurement instruments, including theodolite, total station, gyroscope, scanner and the like, and comprises the following specific implementation steps:
step (1), opening a tripod, keeping a tripod head (9) basically horizontal, adjusting the tripod to be convenient, installing a surveying and mapping instrument (1) on a base (5), and arranging three foot spirals (7) on the base (5) at positions corresponding to three hinging joints (10) of the tripod;
step (2), fixing a tripod (11) leg at a preset position B, and simultaneously moving electric telescopic tripod legs (13.1 and 13.2) in a plane to enable a cross wire of a centering device (4) to coincide with a control point D, namely an axis OD of an instrument points to the position D, wherein the distance error between the cross wire of the centering device (4) and the point D is not more than 3 mm;
step (3), keeping the positions of the tripod legs A, B and C fixed, fixing the length of the tripod legs (11), accurately and quickly adjusting the electric telescopic tripod legs (13.1 and 13.2) through the servo motor (12) respectively, and centering the bubble of the circular collimator (2) on the base (5), wherein the position of the pointing D point of the axis OD of the instrument is unchanged;
step (4), fixing one height of three foot spirals (7) on a base (5) at the bottom of a surveying instrument (1), horizontally rotating the surveying instrument (1) in a plane, enabling the axis direction of a tubular level (3) to be parallel to one side of a triangle on the base (5), rotating the unfixed foot spirals (7), lifting the height of the foot spirals (7) until the tubular level (3) is in the middle of a bubble in the direction, and adjusting the tubular level (3) to be in the middle of the bubble in the other direction, so that the bubble of the tubular level (3) is in the middle of the bubble in any direction;
and (5) checking the overlapping degree and error of the cross wire and the point D of the centering device (4) on the surveying and mapping instrument (1), checking the centering degree of the bubble of the tubular level (3) in any direction, and finishing the centering and leveling work of all instruments.
The method is as follows:
as shown in fig. 2 and 3, the length of the device OB, AB, BC, DB, AC is fixed, three points a ', B', C 'are unidirectionally hinged with a fixed tripod head (9), the tripod head (9) and the instrument (1) are fixed together, the points a, B, C and D are fixed, three-side extension lines of the points AA', BB ', CC' intersect at the point O, and the OD is the axis of the instrument.
Because the tripod head (9) and the instrument (1) are fixed together, the axis of the instrument is collinear with the axis of the tripod head.
Because the three points A ', B ', C ' are unidirectionally hinged with the fixing frame head (9), the lengths of the AA ', CC ' determine the plane position of the fixing frame head (9).
Because OB, AB, BC, DB, AC has a fixed length, the length of OA and OC changes with the position change of the O point, i.e. the length changes of OA and OC affect the position change of O, Δobd, Δoab, Δobc are true, only affect the length change of OD, but not affect the presence of OD line, i.e. the OD line is always present.
Because the OD line is always present, the length of OA and OC can be adjusted, only the length of the OD line is changed, Δobd, Δoab, Δobc is true, i.e. the OD line is present, i.e. the axis of the instrument is present, i.e. always pointing to the position of point D. If the length OF AA' is fixed, the length OF delta OAB is fixed, the length OF OE side is fixed, and the same is true, and the length OF OF and OM side is fixed.
In delta ABC, ED, MD and FD side lengths are fixed, so the OD side always exists as long as the OD side length can be changed.
If the length OF the OE side and the length OF the ED side are fixed, the OD side can always exist, and similarly, the OF side and the FD side can be fixed, the OD side can always exist, and the OM side and the MD side can also be fixed, so that the OD side can always exist.
Therefore, the OD edge is always present in the space volume OEMFD and the OD edge is always present in the space OABCD volume, except for the length change.
Because the OD edge is always present in the space volume OEMFD regardless of the length of OA and OC, and always present in the space volume OABCD, the length of OA and OC is changed and the OD edge can always be directed to the point D.
Claims (3)
1. An engineering survey electric tripod, comprising: a surveying instrument (1), a round leveling instrument (2), a tubular leveling instrument (3), a centering instrument (4), a base (5), a foot screw seat set screw (6), a foot screw (7), a round bottom plate (8), a tripod head (9), three articulated joints, tripod legs (11), 2 servo motors (12.1, 12.2) and 2 electric telescopic tripod legs (13.1, 13.2), wherein,
the surveying instrument (1) is fixed on the base (5) and is used for measuring height difference, distance and angle; the round collimator (2) is arranged on the base (5) and is used for rough leveling; the tubular level (3) is fixed on the surveying instrument (1) and is used for precisely leveling; the centering device (4) is fixed on the surveying instrument (1) and is used for observing whether the horizontal rotation axis (14) of the instrument is centered with the control point (15), the foot screw seat set screw (6) is used for fixing the foot screw (7), the round bottom plate (8) is connected with the tripod head (9) through the foot screw (7), the tripod legs (11) and the 2 electric telescopic tripod legs (13.1 and 13.2) are respectively connected to the three articulated joints, the 2 servo motors (12.1 and 12.2) are respectively fixed on the 2 electric telescopic tripod legs (13.1 and 13.2), and the lengths of the 2 electric telescopic tripod legs (13.1 and 13.2) are electrically and accurately adjusted.
2. A method of rapid centering and leveling of an engineering survey electric tripod according to claim 1, comprising the steps of:
step (1), opening a tripod, keeping a tripod head (9) basically horizontal, installing a surveying and mapping instrument (1) on a base (5), and enabling the positions of three foot spirals (7) on the base (5) to correspond to three hinging joints (10) of the tripod;
step (2), fixing tripod legs (11) at a preset position B, and simultaneously moving 2 electric telescopic tripod legs (13.1, 13.2) in a plane to enable a cross wire of a centering device (4) to coincide with a control point D, namely an axis OD of an instrument points to the position D, and simultaneously fixing foot points A and C of the 2 electric telescopic tripod legs (13.1, 13.2) respectively;
step (3), keeping the positions of three support legs of the tripod at the point A, the point B and the point C fixed, fixing the leg length of the tripod leg (11), accurately and quickly adjusting 2 electric telescopic tripod legs (13.1 and 13.2) through a servo motor (12) respectively, and centering bubbles of a circular collimator (2) on a base (5), wherein the position of an axis OD of the instrument pointing to the point D is unchanged;
step (4), fixing one foot screw height of three foot screws (7) on a base (5) at the bottom of a surveying instrument (1), horizontally rotating the surveying instrument (1) in a plane, enabling the axis direction of a tubular level (3) to be parallel to one side of a triangle on the base (5), rotating the unfixed foot screw (7), lifting the height of the foot screw (7) until the bubble of the tubular level (3) is centered in the direction, and similarly, adjusting the bubble of the tubular level (3) to be centered in the other direction, and centering the bubble of the tubular level (3) in any direction;
and (5) checking the overlapping degree and error of the cross wire and the point D of the centering device (4) on the surveying and mapping instrument (1), checking the centering degree of the bubble of the tubular level (3) in any direction, and finishing the centering and leveling work of all instruments.
3. The method for rapid centering and leveling of engineering survey electric tripod according to claim 2, wherein in the step (2), the distance error between the cross wire of the centering device (4) and the point D is not more than 3 mm.
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| CN201710470053.3A CN107339981B (en) | 2017-06-20 | 2017-06-20 | Engineering measurement electric tripod and rapid centering and leveling method |
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| KR102573680B1 (en) * | 2023-03-14 | 2023-09-04 | 삼부기술 주식회사 | Geodetic surveying tripod for leveling |
| CN116067349B (en) * | 2023-03-31 | 2023-07-04 | 中国建筑一局(集团)有限公司 | Automatic centering device and automatic centering method for laser measuring instrument |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592483A (en) * | 2009-06-25 | 2009-12-02 | 浙江建设职业技术学院 | The transit tripod of disposable realization centering leveling |
| CN101932905A (en) * | 2008-02-12 | 2010-12-29 | 特林布尔公司 | Localization of a surveying instrument in relation to a ground mark |
| CN202119425U (en) * | 2011-05-20 | 2012-01-18 | 浙江工业职业技术学院 | Centralizing leveling reference device of theodolite tripod |
| CN203100745U (en) * | 2012-12-21 | 2013-07-31 | 中国石油集团东方地球物理勘探有限责任公司 | Calibrator for measuring instrument base |
| WO2014019288A1 (en) * | 2012-07-31 | 2014-02-06 | 付建国 | Sleeved type surveying stand |
| CN203672398U (en) * | 2013-12-13 | 2014-06-25 | 山东科技大学 | Novel measuring instrument tripod |
| CN104141867A (en) * | 2014-07-23 | 2014-11-12 | 哈尔滨工程大学 | Automatic leveling tripod |
| CN104964675A (en) * | 2015-07-07 | 2015-10-07 | 常州工程职业技术学院 | Under-point laser centering device for measuring underground construction |
| CN205350774U (en) * | 2016-01-20 | 2016-06-29 | 浙江建设职业技术学院 | Swift centering flattening foot rest |
| CN205384025U (en) * | 2016-03-11 | 2016-07-13 | 张忠良 | Gravity type engineering survey centering leveling tripod |
| CN106052636A (en) * | 2016-06-02 | 2016-10-26 | 绍兴文理学院 | Theodolite centralizing and leveling method |
| CN207280457U (en) * | 2017-06-20 | 2018-04-27 | 北京工业大学 | A kind of electronic tripod of engineering survey |
-
2017
- 2017-06-20 CN CN201710470053.3A patent/CN107339981B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101932905A (en) * | 2008-02-12 | 2010-12-29 | 特林布尔公司 | Localization of a surveying instrument in relation to a ground mark |
| CN101592483A (en) * | 2009-06-25 | 2009-12-02 | 浙江建设职业技术学院 | The transit tripod of disposable realization centering leveling |
| CN202119425U (en) * | 2011-05-20 | 2012-01-18 | 浙江工业职业技术学院 | Centralizing leveling reference device of theodolite tripod |
| WO2014019288A1 (en) * | 2012-07-31 | 2014-02-06 | 付建国 | Sleeved type surveying stand |
| CN203100745U (en) * | 2012-12-21 | 2013-07-31 | 中国石油集团东方地球物理勘探有限责任公司 | Calibrator for measuring instrument base |
| CN203672398U (en) * | 2013-12-13 | 2014-06-25 | 山东科技大学 | Novel measuring instrument tripod |
| CN104141867A (en) * | 2014-07-23 | 2014-11-12 | 哈尔滨工程大学 | Automatic leveling tripod |
| CN104964675A (en) * | 2015-07-07 | 2015-10-07 | 常州工程职业技术学院 | Under-point laser centering device for measuring underground construction |
| CN205350774U (en) * | 2016-01-20 | 2016-06-29 | 浙江建设职业技术学院 | Swift centering flattening foot rest |
| CN205384025U (en) * | 2016-03-11 | 2016-07-13 | 张忠良 | Gravity type engineering survey centering leveling tripod |
| CN106052636A (en) * | 2016-06-02 | 2016-10-26 | 绍兴文理学院 | Theodolite centralizing and leveling method |
| CN207280457U (en) * | 2017-06-20 | 2018-04-27 | 北京工业大学 | A kind of electronic tripod of engineering survey |
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