CN219455105U - Monitoring point lofting and measurement auxiliary device - Google Patents
Monitoring point lofting and measurement auxiliary device Download PDFInfo
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- CN219455105U CN219455105U CN202320435189.1U CN202320435189U CN219455105U CN 219455105 U CN219455105 U CN 219455105U CN 202320435189 U CN202320435189 U CN 202320435189U CN 219455105 U CN219455105 U CN 219455105U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 89
- 238000005259 measurement Methods 0.000 title claims abstract description 56
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- 238000006073 displacement reaction Methods 0.000 description 7
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- 239000002390 adhesive tape Substances 0.000 description 1
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- 239000003973 paint Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007592 spray painting technique Methods 0.000 description 1
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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 utility model discloses a monitoring point lofting and measuring auxiliary device, which comprises: the magnetic declination display adjusting assembly comprises a magnetic declination display disc, a magnetic declination adjusting unit and a magnetic declination locking unit, wherein the magnetic declination display disc can read the magnetic declination angle of a monitoring area, the magnetic declination adjusting unit can correct the magnetic declination angle of the magnetic declination display disc, and the magnetic declination locking unit can lock the magnetic declination of the magnetic declination display disc; the lofting and measuring assembly comprises an offset angle measuring unit and a distance measuring unit, wherein the offset angle measuring unit is used for carrying out offset angle measurement on the position of the monitoring point, and the distance measuring unit is used for carrying out distance measurement on the position of the monitoring point. The utility model effectively reduces the monitoring difficulty, improves the monitoring precision, obviously reduces errors and simplifies the calculation process.
Description
Technical Field
The utility model relates to the technical field of urban rail transit engineering monitoring, in particular to a monitoring point lofting and measuring auxiliary device.
Background
Along with the rapid development of the economy in China, the development and utilization of the urban underground space also show the trend of rapid development and accelerated technical upgrading. In the urban rail transit construction process, engineering monitoring plays a vital role in guaranteeing the safety construction of foundation pits and tunnel engineering.
The current foundation pit and tunnel engineering monitoring point lofting is usually performed by adopting a carrier phase differential technology (RTK) or a total station. However, the RTK lofting precision is not high enough, the lofting error of the monitoring points is larger, and the requirement of increasingly strict urban rail transit on the high precision of lofting the monitoring points cannot be met; the lofting process of the total station is complex and is too cumbersome. The vertical displacement of monitoring point is measured and is adopted the spirit level to monitor more, and the horizontal displacement is monitored and is adopted the total powerstation to monitor more, faces foundation ditch engineering complicated horizontal displacement and vertical displacement monitoring point position, and instrument replacement and monitoring process are comparatively loaded down with trivial details.
Disclosure of Invention
Based on this, it is necessary to provide a monitoring point lofting and measurement assisting device for solving the above technical problems.
A monitoring point lofting and measurement assistance device, comprising:
the magnetic declination display adjusting assembly comprises a magnetic declination display disc, a magnetic declination adjusting unit and a magnetic declination locking unit, wherein the magnetic declination display disc can read the magnetic declination angle of a monitoring area, the magnetic declination adjusting unit can correct the magnetic declination angle of the magnetic declination display disc, and the magnetic declination locking unit can lock the magnetic declination of the magnetic declination display disc;
the lofting and measuring assembly comprises an offset angle measuring unit and a distance measuring unit, wherein the offset angle measuring unit is used for carrying out offset angle measurement on the position of the monitoring point, and the distance measuring unit is used for carrying out distance measurement on the position of the monitoring point.
In one embodiment, the declination adjustment unit comprises:
the magnetic declination display is used for displaying the magnetic declination angle of the monitoring area;
and the declination angle adjusting knob can correct the declination angle of the declination angle display disc after rotating.
In one embodiment, the declination locking unit comprises a declination locking button capable of locking a declination of the declination display disk.
In one embodiment, the declination display disk is provided with a first level bubble.
In one embodiment, the offset angle measurement unit includes:
an offset pointer installed at a central position of the declination display disc via a rotation shaft;
the compass is arranged on the rotating shaft and can calibrate the north direction;
the offset angle display is used for displaying the lofting or measured offset angle, and the lower side of the offset angle display is provided with an offset angle rough adjustment screw used for rough adjustment of the lofting angle, an offset angle fine adjustment screw used for fine adjustment of the lofting angle and an offset angle locking button used for locking the lofting angle;
and the angle zero clearing key is used for clearing the offset angle of lofting and measurement.
In one embodiment, the distance measuring unit includes:
the distance measuring instrument is arranged at the overhanging end of the offset pointer, a distance lofting switch and a distance measuring switch are arranged on the distance measuring instrument, and the distance lofting switch and the distance measuring switch can respectively switch a lofting mode and a distance measuring mode;
and the centering rod is matched with the distance measuring instrument.
In one embodiment, the distance measuring instrument includes:
a lofting distance input button for inputting lofting calibration distance;
the measuring instrument display screen is used for displaying the measuring or lofting distance;
the laser ranging probe can emit laser.
In one embodiment, the centering rod comprises:
the telescopic rod is arranged at the bottom of the rod body;
the centering disc is arranged at the top of the rod body, a disc center hole is formed in the middle of the centering disc, and laser emitted by the laser ranging probe can penetrate through the disc center hole;
the data display is arranged at the upper end of the centering disc and can display lofting position distance or standard point distance;
and the locking bolt is used for locking the telescopic rod and the rod body.
In one embodiment, the shaft has a second level bubble disposed thereon.
In one embodiment, a support rod or a tripod is arranged at the bottom of the declination display and adjustment assembly.
According to the monitoring point lofting and measurement auxiliary device, the magnetic declination angle of the monitoring area is read through the magnetic declination angle display adjusting component, then the magnetic declination angle of the magnetic declination angle display disc is corrected and locked by the magnetic declination angle adjusting unit and the magnetic declination angle locking unit, and then the lofting and measurement component is used for measuring or lofting, so that lofting and measurement are integrated, the monitoring difficulty is effectively reduced, the monitoring precision is improved, errors are remarkably reduced, and the calculation process is simplified.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a monitoring point lofting and measurement assisting device of the present utility model;
FIG. 2 is a schematic view of the distance measuring instrument of the present utility model;
FIG. 3 is a schematic view of the structure of the centering rod of the present utility model;
FIG. 4 is a schematic view of another angular configuration of the centering rod of the present utility model;
FIG. 5 is a schematic view of the assembly support bar of the declination display adjustment assembly of the present utility model;
fig. 6 is a schematic view of a tripod assembled with the declination-display adjustment assembly of the present utility model.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
Referring to fig. 1-6, an embodiment of the present utility model provides a monitoring point lofting and measuring auxiliary device, including:
the declination display adjusting assembly 1 comprises a declination display disc 11, a declination adjusting unit and a declination locking unit 113, wherein the declination display disc 11 can read the declination angle of a monitoring area, the declination adjusting unit can correct the declination angle of the declination display disc 11, and the declination locking unit 113 can lock the declination of the declination display disc 11;
the lofting and measuring assembly comprises an offset angle measuring unit and a distance measuring unit, wherein the offset angle measuring unit is used for carrying out offset angle measurement on the position of the monitoring point, and the distance measuring unit is used for carrying out distance measurement on the position of the monitoring point.
According to the monitoring point lofting and measuring auxiliary device, the magnetic declination angle of the monitoring area is read through the magnetic declination angle display adjusting component 1, then the magnetic declination angle of the magnetic declination angle display disc 11 is corrected and locked by the magnetic declination angle adjusting unit and the magnetic declination angle locking unit 113, and then the lofting and measuring component is used for measuring or lofting, so that lofting and measuring are integrated, the monitoring difficulty is effectively reduced, the monitoring precision is improved, errors are remarkably reduced, and the calculation process is simplified.
In this embodiment, the declination display disc 11 is used for reading the declination angle of the area, comparing and checking the declination angle obtained by reading and consulting the data of the declination display disc 11, if the declination obtained by reading and consulting the data is consistent, adjusting the declination according to the reading, if the declination obtained by reading and consulting the data is inconsistent, checking whether a magnetic field exists nearby, if the magnetic field exists nearby, the declination of the local declination is based on the reading, and the declination needs to be adjusted before each measurement.
In an embodiment of the present utility model, the declination adjustment unit includes:
a declination display 114 for displaying declination angles of the monitored region;
a declination adjustment knob 112, the declination adjustment knob 112 being capable of correcting the declination of the declination display disk 11 after rotation. Alternatively, the declination locking unit 113 includes a declination locking button capable of locking the declination of the declination display disk 11.
In one embodiment of the present utility model, the declination display disk 11 is provided with a first level bubble 12. Whether the declination display disk 11 is in a horizontal state or not can be detected by the first level bubble 12.
In an embodiment of the present utility model, the offset angle measurement unit includes:
an offset pointer 110 installed at a central position of the declination display disk 11 via a rotation shaft 18;
a compass 111 disposed on the rotation shaft 18, the compass 111 being capable of calibrating a north direction;
the offset angle display 17 is used for displaying the lofting or measured offset angle, and an offset angle rough adjustment screw 13 used for rough adjustment of the lofting angle, an offset angle fine adjustment screw 14 used for fine adjustment of the lofting angle, an offset angle fine adjustment screw 15 used for fine adjustment of the lofting angle and an offset angle locking button 16 used for locking the lofting angle are arranged on the lower side of the offset angle display 17;
an angle clear key 117 for clearing the offset angle of the loft and measurement.
In an embodiment of the utility model, the distance measuring unit includes:
a distance measuring instrument 19, wherein the distance measuring instrument 19 is arranged at the overhanging end of the offset pointer 110, a distance lofting switch 192 and a distance measuring switch 193 are arranged on the distance measuring instrument 19, and the distance lofting switch 192 and the distance measuring switch 193 can respectively switch between a lofting mode and a ranging mode;
the centering rod 2 cooperates with said distance measuring device 19.
In this embodiment, after the offset pointer 110 rotates, the distance meter 19 can be driven to rotate, so that the initial angle of the distance meter 19 can be changed.
In one embodiment of the present utility model, the distance measuring device 19 includes:
a lofting distance input button 191 for inputting a lofting calibration distance;
a gauge display 194 for displaying the measured or lofted distance;
a laser ranging probe 195, the laser ranging probe 195 being capable of lasing.
In this embodiment, the distance measuring instrument 19 is provided with four discharge sample distance input buttons 191 for inputting a lofting calibration distance, so that distance accurate lofting can be performed.
In one embodiment of the present utility model, the centering rod 2 includes:
a rod body 23, wherein a telescopic rod 21 is arranged at the bottom of the rod body 23;
a centering disc 25, which is disposed at the top of the shaft 23, wherein a disc center hole 26 is disposed in the middle of the centering disc 25, and the laser emitted by the laser ranging probe 195 can pass through the disc center hole 26;
a data display 27 disposed at an upper end of the centering disc 25, the data display 27 being capable of displaying a loft position distance or a calibration point distance;
a locking bolt 22 for locking the telescopic rod 21 and the rod body 23.
In this embodiment, the centering rod 2 may be set up at a measuring point for measuring a monitoring point, the telescopic rod 21 may be telescopically adjusted to the height of the centering disc 25, and after the centering disc is adjusted in place, the telescopic rod 21 and the rod body 23 may be locked by rotating the locking bolt 22. It should be noted that, the laser light emitted from the laser ranging probe 195 can pass through the center hole 26 of the disc, if the detection position of the laser light can be precisely located.
In one embodiment of the present utility model, the shaft 23 is provided with a second level bubble 24. In this way, it is possible to detect whether the shaft 23 is level.
In an embodiment of the present utility model, a support rod 3 or a tripod 4 is disposed at the bottom of the declination display adjustment assembly 1.
The utility model comprises the following implementation stages:
(1) Laying working base points and datum points;
aiming at each working point, before the monitoring points are distributed, the datum points are distributed firstly, the number of elevation datum points of each working point is not less than 3, the number of horizontal datum points is not less than 4, a closed ring is formed between the datum points, the datum points are arranged outside the deformation influence range, the positions are stable, and the positions are easy to store for a long time, and the benchmarks or marks are buried;
uniformly distributing a certain number of working base points at a relatively stable place convenient for operation, wherein the working base points are distributed at the edges of the foundation pit and at the two sides of the tunnel, and corresponding marks are arranged;
the datum points and the working base points are uniformly distributed around the foundation pit and around the upper part of the shield tunnel as far as possible under the condition of meeting the requirements, and part of the datum points and the working base points can be used as image control points for photogrammetry;
(2) Joint measurement of base points;
the working base point is subjected to joint measurement with the reference point at regular intervals, preferably once a month, and when the working base point is found to have a problem, joint measurement is performed at any time; adopting a high-precision total station to carry out joint measurement of a plane datum point and a working datum point, and adopting second-class or first-class level measurement to carry out joint measurement of a high Cheng Zhun point and the working datum point;
(3) Laying image control points;
constructing a route, establishing a region, arranging image control points for photogrammetry in the region, optimizing reference points and working base points by the image control points, uniformly arranging the image control points at the positions of the foundation pit and the edges of the foundation pit, the ground above the shield tunnel and the periphery, and uniformly arranging the image control points according to the whole region of the route; the image control points select flat areas as much as possible, so that places such as under trees, corners and the like which are easy to be shielded are avoided; the image control point should select what can be permanently present, such as paint spraying (the spray painting width is not less than 30 cm), adhesive tape and the like; the image control point markers should be in sharp contrast with the ground surface color; the distance between adjacent image control points is not more than 100 meters, the arrangement distance between the monitoring points is determined according to each engineering monitoring scheme, and the fact that the DEM obtained through photogrammetry contains all the monitoring points is ensured;
(4) The datum point, the working datum point and the image control point are measured in a joint way;
performing joint measurement on a datum point, a working datum point and an image control point by adopting a high-precision total station and a level gauge to obtain the accurate coordinates of each point;
(5) Oblique photogrammetry;
carrying a laser radar on a high-precision unmanned aerial vehicle to perform oblique photogrammetry, calibrating a route, performing aerial survey, and taking a photogrammetry photo, wherein the aerial height is preferably 50-100 m;
(6) Generating DEM;
processing unmanned aerial vehicle shooting by adopting image processing software such as pix4D or Smart3D to obtain a photo, and generating a three-dimensional model;
(7) The tunnel and foundation pit coordinates are imported, and the positions of the tunnel and the foundation pit in the generated DEM are calibrated;
(8) Calibrating the positions of the monitoring points on the DEM;
determining the number and the distribution distance of each monitoring item and monitoring point of the tunnel and the foundation pit according to the related specification and the engineering design file requirement, and calibrating the positions of the monitoring points on the DEM according to the distribution number and the distribution distance of the measuring points;
(9) Measuring and obtaining the flat distance between a settlement monitoring point and a reference point or a working base point, wherein the included angle between the monitoring point and the geographic north direction; calibrating the relative position relation between each settlement monitoring point and an adjacent datum point or a working datum point, and taking the DEM as a monitoring deployment map of settlement monitoring points;
(10) Measuring and obtaining the flat distance between a horizontal displacement monitoring point and a reference point or a working base point, and forming an included angle between the monitoring point and the geographic north direction; calibrating the relative position relation between each horizontal displacement monitoring point and an adjacent datum point or a working datum point, and taking the DEM as a monitoring distribution diagram of the horizontal displacement monitoring points;
(11) Accurately lofting the measuring points by adopting a monitoring point lofting and measuring auxiliary device, and laying the measuring points;
erecting a tripod 4 or a supporting rod 3 on a datum point or a working base point, installing a monitoring point lofting and measuring auxiliary device on the tripod 3 or the supporting rod 4, and adjusting the tripod 4 or the supporting rod 3 until the first level bubble 12 is centered, wherein the monitoring point lofting and measuring auxiliary device is horizontal;
checking the local magnetic declination, simultaneously reading the reading of the declination display disc 11, comparing and checking the reading of the declination display disc 11 with the local magnetic declination obtained by checking the data, if the reading is consistent with the declination obtained by checking the data, adjusting the declination according to the reading, if the reading is inconsistent with the declination obtained by checking the data, checking whether a magnetic field exists nearby, if the magnetic field exists nearby, the local magnetic declination is in order of the reading, and adjusting the declination before each lofting or measurement by using an auxiliary device;
opening the declination locking button 113, adjusting the declination adjusting screw 112 until the reading of the declination display 17 at the upper part is the same as the reading of the declination display disk 11, eliminating declination errors, enabling the north direction pointed by the compass 111 to be the geographic north direction, and locking the declination locking button 113;
opening the angle loft switch 115 and the distance loft switch 192 to adjust the device to loft mode; the setting-out distance input button 191 of the distance measuring instrument 19 inputs the flat distance between the settlement monitoring point measured on the DEM and the datum point or the working datum point, the offset angle locking button 16 is opened, the offset angle rough adjustment screw 13, the offset angle fine adjustment screw 14 and the offset angle fine adjustment screw 15 are adjusted until the reading of the offset angle display 17 reaches the included angle between the settlement monitoring point measured on the DEM and the geographic north direction, the offset angle adjustment screw 15 rotates to drive the offset pointer 110 to rotate, so that the offset pointer 110 and the distance measuring instrument 19 on the offset pointer 110 rotate to the included angle between the settlement monitoring point measured on the DEM and the geographic north direction;
adjusting the distance measurement centering rod 2 to a proper height, lofting by adopting the distance measurement centering rod 2, roughly aligning an auxiliary device laser distance measurement probe 195 with a disc center hole 26 at the front side of the auxiliary device, moving the lofting person to a proper distance backward by carrying the distance measurement centering rod 2, wherein a centering data display 27 displays a datum point or the angle and the distance between a working base point and the disc center hole 26 of the distance measurement centering rod at any time, aligning the disc center hole 26 with the laser distance measurement probe 195 according to the display data of the centering data display 27 to emit laser until the distance measurement centering rod is positioned on a DEM to measure the flat distance between a monitoring point and the datum point or the working base point, calibrating the measuring point position by using the included angle between the monitoring point and the geographic north direction as the data of the centering data display 27, and performing measuring point layout;
(12) Measuring point layout and initial value acquisition;
and (3) distributing the monitoring points according to the lofting positions of the monitoring points, and collecting initial values of the monitoring points after the distribution of the measuring points is completed. Setting up a tripod 4 or a supporting rod 3 at a datum point or a working base point, installing a monitoring point lofting and measuring auxiliary device on the tripod 4 or the supporting rod 3, and adjusting the tripod 4 or the supporting rod 3 until a second level bubble 24 is centered, and lofting and measuring the auxiliary device level at the monitoring point;
checking the local magnetic declination, simultaneously reading the reading of the declination display disc 11, comparing and checking the reading of the declination display disc 11 with the local magnetic declination obtained by checking the data, if the reading is consistent with the declination obtained by checking the data, adjusting the declination according to the reading, if the reading is inconsistent with the declination obtained by checking the data, checking whether a magnetic field exists nearby, if the magnetic field exists nearby, the local magnetic declination is in order of the reading, and adjusting the declination before each lofting or measurement by using an auxiliary device; opening the declination locking button 113, adjusting the declination adjusting screw 112 until the reading of the declination display 114 at the upper part is the same as the reading of the declination display disk 11, eliminating declination errors, enabling the north direction pointed by the compass 111 to be the geographic north direction, and locking the declination locking button 113;
turning on the angle measurement switch 116 and the distance measurement switch 193 to adjust the device to a measurement mode; pressing an angle clear key 117 to clear the angle; opening the offset angle lock button 16, rotating the offset pointer to the approximate position, and opening the laser ranging probe 195;
opening a telescopic rod locking bolt 22 of the distance measurement centering rod, adjusting the distance measurement centering rod 2 to a proper height, screwing the telescopic rod locking bolt 22, and locking the centering rod telescopic rod 21; placing a ranging centering rod 2 at the position of the monitoring point, and adjusting the centering of the second level bubble 24 to ensure the level of the ranging centering rod 2; aligning the laser ranging probe 195 to the centering disc 25 of the ranging centering rod, the centering disc 25 receiving laser emitted by the laser ranging probe 195;
the offset angle rough adjustment screw 13, the offset angle fine adjustment screw 14 and the offset angle fine adjustment screw 15 are respectively adjusted until the laser ranging probe 195 emits laser to the position of the disc center hole 26 or the position right above or below the disc center hole 26, the offset angle locking button 16 is locked, the offset pointer is ensured not to rotate any more, at the moment, the reading of the offset angle display 17 is the included angle between the monitoring point and the north direction, the reading and the display distance reading of the measuring instrument screen are recorded, the measurement is repeatedly performed for three times, and the average value of the reading is taken as an initial value;
the tripod 4 is opened, the height between the tripod 4 and the ground point or the height of the supporting rod 3 is read by a laser range finder, the height difference between the measuring device and the datum point or the working base point is measured, the distance between the laser point and the center hole 26 of the disc is read from the centering data display 27, the laser point is positioned at the center hole 26 of the disc or is directly above and directly below the center hole, the distance is the height difference between the two points, the height of the ranging centering rod is read, the height difference between the datum point and the monitoring point is calculated, the reading is recorded, the measurement is repeatedly carried out three times, and the average value is taken as an initial value;
(13) And using a monitoring point lofting and measuring auxiliary device to monitor according to the specified monitoring frequency.
In the monitoring point measurement stage, a tripod 4 or a supporting rod 3 is erected on a datum point or a working foundation point, a monitoring point lofting and measuring auxiliary device is arranged on the tripod 4 or the supporting rod 3, and the tripod 4 or the supporting rod 3 is adjusted until a first level bubble 12 is centered, and the monitoring point lofting and measuring auxiliary device is horizontal;
checking the local magnetic declination, simultaneously reading the reading of the declination display disc 11, comparing and checking the reading of the declination display disc 11 with the local magnetic declination obtained by checking the data, if the reading is consistent with the declination obtained by checking the data, adjusting the declination according to the reading, if the reading is inconsistent with the declination obtained by checking the data, checking whether a magnetic field exists nearby, if the magnetic field exists nearby, the local magnetic declination is in order of the reading, and adjusting the declination before each lofting or measurement by using an auxiliary device; opening the declination locking button 113, adjusting the declination adjusting screw 112 until the reading of the declination display 114 at the upper part is the same as the reading of the declination display disk 11, eliminating declination errors, enabling the north direction pointed by the compass 111 to be the geographic north direction, and locking the declination locking button 113;
turning on the angle measurement switch 116 and the distance measurement switch 193 to adjust the device to a measurement mode; pressing an angle clear key 117 to clear the angle; opening the offset angle lock button 16, rotating the offset pointer to the approximate position, and opening the laser ranging probe 195;
opening a telescopic rod locking bolt 22 of the distance measurement centering rod, adjusting the distance measurement centering rod to a proper height, screwing the telescopic rod locking bolt 22, and locking the centering rod telescopic rod 21; placing a ranging centering rod at the position of the monitoring point, adjusting the leveling bubble centering of the centering rod, and ensuring the level of the ranging centering rod; aligning an auxiliary device laser ranging probe 195 to a centering disc 25 of a ranging centering rod, wherein the centering disc 25 receives laser emitted by the laser ranging probe 195;
the offset angle rough adjustment screw 13, the offset angle fine adjustment screw 14 and the offset angle fine adjustment screw 15 are respectively adjusted until the laser ranging probe 195 emits laser to the position of the disc center hole 26 or the position right above or right below the disc center hole 26, the offset angle locking button 16 is locked, the offset pointer is ensured not to rotate any more, at the moment, the reading of the offset angle display 17 is the included angle between the monitoring point and the north direction, the reading and the display distance reading of the measuring instrument screen are recorded, and the reading and the display distance reading are used as the distance and offset angle measurement value;
the tripod 4 is opened, the height of the tripod and the ground point or the height of the supporting rod 3 is read by a laser range finder, the height difference between the measuring device and the datum point or the working datum point is measured, the distance between the laser point and the center hole 26 of the disc is read from the centering data display 27, the laser point is positioned at the center hole 26 of the disc or is directly above and directly below the center hole, the distance is the height difference between the two points, the height of the ranging centering rod is read, the height difference between the datum point and the monitoring point is calculated, and the reading is recorded and used as a height difference measuring value; and calculating to obtain a difference value between the measured value and the initial value, wherein the component of the difference value along the direction vertical to the foundation pit is the deformation result obtained by measurement.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The examples described above represent only a few embodiments of the present utility model and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. A monitoring point lofting and measurement assisting device, comprising:
the magnetic declination display adjusting assembly (1) comprises a magnetic declination display disc (11), a magnetic declination adjusting unit and a magnetic declination locking unit (113), wherein the magnetic declination display disc (11) can read the magnetic declination of a monitoring area, the magnetic declination adjusting unit can correct the magnetic declination of the magnetic declination display disc (11), and the magnetic declination locking unit (113) can lock the magnetic declination of the magnetic declination display disc (11);
the lofting and measuring assembly comprises an offset angle measuring unit and a distance measuring unit, wherein the offset angle measuring unit is used for carrying out offset angle measurement on the position of the monitoring point, and the distance measuring unit is used for carrying out distance measurement on the position of the monitoring point.
2. The monitor point lofting and measuring assist device according to claim 1, wherein the magnetic declination adjustment unit includes:
a declination display (114) for displaying declination angles of the monitored area;
and a declination adjustment knob (112), the declination adjustment knob (112) being capable of correcting the declination of the declination display disc (11) after rotation.
3. The monitoring point lofting and measuring aid according to claim 2, wherein the declination locking unit (113) comprises a declination locking knob capable of locking the declination of the declination display disc (11).
4. A monitoring point lofting and measuring aid according to any of claims 1-3, wherein the declination display disc (11) is provided with first level bubbles (12).
5. The monitor point lofting and measuring assist device according to claim 1, wherein the offset angle measuring unit includes:
an offset pointer (110) mounted at a center position of the declination display disk (11) via a rotation shaft (18);
a compass (111) disposed on the rotation shaft (18), the compass (111) being capable of calibrating a north direction;
the device comprises an offset angle display (17) for displaying a lofting or measured offset angle, wherein an offset angle rough adjustment screw (13) for rough adjustment of the lofting angle, an offset angle fine adjustment screw (14) for fine adjustment of the lofting angle, an offset angle fine adjustment screw (15) for fine adjustment of the lofting angle and an offset angle locking button (16) for locking the lofting angle are arranged on the lower side of the offset angle display (17);
and an angle zero clearing key (117) for clearing the offset angle between lofting and measurement.
6. The monitor point lofting and measurement assist device according to claim 5, wherein the distance measuring unit includes:
the distance measuring instrument (19), the distance measuring instrument (19) is arranged at the overhanging end of the offset pointer (110), a distance lofting switch (192) and a distance measuring switch (193) are arranged on the distance measuring instrument (19), and the distance lofting switch (192) and the distance measuring switch (193) can respectively switch between a lofting mode and a ranging mode;
and the centering rod (2) is matched with the distance measuring instrument (19).
7. The monitoring point lofting and measuring aid according to claim 6, wherein the distance measuring instrument (19) comprises:
a lofting distance input button (191) for inputting a lofting calibration distance;
a gauge display screen (194) for displaying the measured or lofted distance;
a laser ranging probe (195), the laser ranging probe (195) being capable of lasing.
8. The monitoring point lofting and measuring aid according to claim 7, wherein the centering bar (2) comprises:
a rod body (23), wherein a telescopic rod (21) is arranged at the bottom of the rod body (23);
a centering disc (25) arranged at the top of the rod body (23), wherein a disc center hole (26) is arranged in the middle of the centering disc (25), and laser emitted by the laser ranging probe (195) can pass through the disc center hole (26);
the middle data display (27) is arranged at the upper end of the centering disc (25), and the middle data display (27) can display lofting position distance or standard point distance;
and a locking bolt (22) for locking the telescopic rod (21) and the rod body (23).
9. The monitoring point lofting and measuring aid according to claim 8, wherein a second level bubble (24) is provided on the shaft (23).
10. The auxiliary device for lofting and measuring monitoring points according to claim 6, wherein the bottom of the magnetic declination display and adjustment assembly (1) is provided with a supporting rod (3) or a tripod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320435189.1U CN219455105U (en) | 2023-03-09 | 2023-03-09 | Monitoring point lofting and measurement auxiliary device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320435189.1U CN219455105U (en) | 2023-03-09 | 2023-03-09 | Monitoring point lofting and measurement auxiliary device |
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| Publication Number | Publication Date |
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| CN219455105U true CN219455105U (en) | 2023-08-01 |
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| CN202320435189.1U Active CN219455105U (en) | 2023-03-09 | 2023-03-09 | Monitoring point lofting and measurement auxiliary device |
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| CN (1) | CN219455105U (en) |
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Address after: 200093 No. 38 Shui Feng Road, Yangpu District, Shanghai. Patentee after: Shanghai Survey, Design and Research Institute (Group) Co.,Ltd. Address before: 200093 No. 38 Shui Feng Road, Yangpu District, Shanghai. Patentee before: SGIDI ENGINEERING CONSULTING (Group) Co.,Ltd. |