CN216621210U - Accurate measuring instrument bed frame of self-control cylinder type - Google Patents
Accurate measuring instrument bed frame of self-control cylinder type Download PDFInfo
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- CN216621210U CN216621210U CN202122581135.XU CN202122581135U CN216621210U CN 216621210 U CN216621210 U CN 216621210U CN 202122581135 U CN202122581135 U CN 202122581135U CN 216621210 U CN216621210 U CN 216621210U
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Abstract
The utility model discloses a self-made cylinder type accurate measuring instrument base frame which comprises a concrete foundation, wherein a cylinder is vertically fixed on the concrete foundation, concrete which is flush with the top surface of the cylinder is poured in the cylinder, a forced centering plate is fixed on the top surface of the concrete, and a connecting bolt is fixedly arranged on the forced centering plate. The self-made cylindrical accurate measuring instrument base frame is formed by a concrete foundation, a cylinder, concrete, a forced centering plate, connecting bolts, embedded steel bars and a fixing rod piece, the concrete is combined and fixed with the forced centering plate, the surface of the forced centering plate is leveled by a high-accuracy horizontal bubble instrument to be horizontal to the ground, and the base frame can be connected with a measuring lofting instrument such as a total station or a GPS only through the connecting bolts when the measuring lofting instrument is erected. Effectively ensures that the lofting precision is consistent in each measurement. The deviation that artificially arouses when can effectively avoid current tripod to erect.
Description
Technical Field
The utility model relates to a self-made cylinder type accurate measuring instrument base frame, and belongs to the technical field of engineering measuring equipment.
Background
The conventional measuring instrument fixing frame is mainly a tripod at present. The tripod is made of aluminum or wood, the aluminum tripod is basically not used, the instrument is difficult to keep horizontal for a long time due to the expansion and contraction of metal caused by the sun irradiation, and the wood tripod has the same problem and is more stable than the aluminum tripod.
Tripod laying-out often is because of the influence of human factor among the actual site operation, and it is great to measure laying-out precision deviation, and when erectting the instrument, centering earlier, just level, accurate flat, if the misoperation still can appear centering again above action repeatedly, will spend a large amount of time.
Disclosure of Invention
The utility model aims to provide a self-made column type precision measuring instrument base frame. The device can improve the construction survey laying-out precision to improve survey crew work efficiency.
The technical scheme of the utility model is as follows: the utility model provides a self-control accurate measuring instrument bed frame of cylinder formula, includes the concrete foundation, and the vertical barrel that is fixed with on the concrete foundation has pour the concrete rather than the top surface parallel and level in the barrel, and the top surface of concrete is fixed with forces the centering plate, forces the fixed connecting bolt that is provided with on the centering plate.
In the above-mentioned accurate measuring instrument bed frame of self-control column body formula, concrete foundation surface is provided with the embedded steel bar that upwards stretches into to the barrel.
In the self-made cylindrical precision measuring instrument base frame, the cylinder is made of hard pvc material.
In the self-made column type precision measuring instrument base frame, the concrete is poured for 2 times, the distance between the concrete and the top surface of the cylinder body is 0.2-0.3m when the concrete is poured for the first time, and the forced centering plate is directly fixed on the top surface of the concrete when the concrete is poured for the second time.
In the self-made column type precision measuring instrument base frame, the connecting bolt is fixed at the center of the forced centering plate, the outer wall of the connecting bolt is provided with external threads, and the center of the top surface of the connecting bolt is provided with the threaded counter bore.
A plurality of fixing rod pieces 7 extending into the concrete 3 are fixed on the bottom surface of the forced centering plate 4.
The utility model has the beneficial effects that: compared with the prior art, the self-made cylindrical accurate measuring instrument base frame is formed by the concrete foundation, the cylinder, the concrete, the forced centering plate, the connecting bolt, the embedded steel bar and the fixing rod piece, the concrete is combined and fixed with the forced centering plate, the plate surface of the forced centering plate is leveled by a high-accuracy horizontal bubble instrument to be leveled with the ground, and the total station or GPS measuring lofting instrument is erected only by connecting the connecting bolt. Effectively ensures that the lofting precision is consistent in each measurement. The deviation caused by manpower when the tripod is erected can be effectively avoided. The instrument does not need to be centered in the erecting process, and measurement and lofting can be performed just like operating a level gauge. The device need not worry artificial walking influence instrument levelness at the lofting in-process, does not worry that the instrument falls down to damage for measurement work is faster, more steady, more accurate.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Reference numerals: the method comprises the following steps of 1-concrete foundation, 2-cylinder, 3-concrete, 4-forced centering plate, 5-connecting bolt, 6-embedded steel bar and 7-fixing rod piece.
Detailed Description
The utility model is further illustrated by the following figures and examples, which are not to be construed as limiting the utility model.
The embodiment of the utility model comprises the following steps: the utility model provides a self-control accurate measuring instrument bed frame of cylinder type, as shown in figure 1, includes concrete foundation 1, vertically is fixed with barrel 2 on the concrete foundation 1, pours the concrete 3 rather than the top surface parallel and level in barrel 2, and the top surface of concrete 3 is fixed with forces centering plate 4, forces to fix on centering plate 4 to be provided with connecting bolt 5.
The surface of the concrete foundation 1 is provided with embedded steel bars 6 which extend upwards into the cylinder body 2, so that the cylinder body 2 and the concrete 3 in the cylinder body are better connected and fixed with the concrete foundation 1.
The cylinder body 2 is made of hard pvc material, so that the material taking is convenient, the later-stage breaking is easy, and the cost is low. This barrel 2 is the template of pouring of concrete 3 promptly, can make concrete 3 quick shaping through setting up the barrel 2 of stereoplasm pvc material. And the deformation is not easy, and the stability of the internal concrete structure is ensured. And the template does not need to be dismantled after pouring and forming.
The concrete 3 is poured for 2 times, the distance between the concrete 3 and the top surface of the barrel 2 is 0.2-0.3m after the first pouring is finished, and the forced centering plate 4 is directly fixed on the top surface of the concrete 3 when the concrete 3 is poured during the second pouring.
The connecting bolt 5 is fixed at the center of the forced centering plate 4, the outer wall of the connecting bolt is provided with external threads, and the center of the top surface of the connecting bolt is provided with a threaded counter bore. When the total station is installed on the forced centering plate 4, the threaded hole at the bottom of the total station is directly aligned to the connecting bolt 5, and the total station can be fixed on the forced centering plate 4 by rotating the total station. If the GPS needs to be installed on the forced centering plate 4, the threaded counter bore at the head end of the connecting screw rod is firstly connected with the external thread of the connecting bolt 5, and then the GPS is fixed on the connecting screw rod. If other measuring equipment needs to be fixed, the head end of the connecting rod of the centering plate can be screwed into the threaded counter bore of the connecting bolt 5, and after the connection between the head end and the threaded counter bore is realized, other equipment is fixed on the connecting rod of the centering plate.
A plurality of fixing rod pieces 7 extending into the concrete 3 are fixed on the bottom surface of the forced centering plate 4, so that the forced centering plate 4 and the concrete 3 are well fixedly connected together.
The whole forming work comprises the following steps:
1. point selection
Firstly, the position of solid soil or rock is selected as much as possible when point location selection is controlled, and displacement and settlement are avoided after point manufacturing is finished. And secondly, the place with good visibility condition is selected, so that later construction, measurement and lofting are facilitated.
2. Excavation of foundation pit and pouring of concrete foundation 1
After the point location is selected, a foundation pit is excavated, wherein the excavation depth of the foundation pit is generally 0.5 to 1 meter, and the width is 0.8 meters multiplied by 0.8 meter. And pouring the concrete foundation 1 after the foundation pit is excavated, wherein 3 to 5 embedded steel bars 6 with the diameter of 16 are embedded in the concrete foundation 1, and the exposed length is 0.5 to 1 meter. Concrete 3 is poured in the fixed later stage of the convenience.
3. Concrete 3 pouring
After the concrete foundation 1 meets the strength requirement, the cylinder 2 is installed, and then the concrete 3 in the cylinder 2 can be poured.
4. Forced centering plate 4 installation and levelness adjustment
Reserving 0.2-0.3m of concrete 3 during pouring and pouring the concrete together with the forced centering plate 4, selecting the concrete with small slump for the concrete 3 during pouring the section of concrete 3, and after the initial adjustment of the levelness is completed, checking the levelness of the point again after the initial setting of the concrete 3, preventing the concrete 3 from generating influence on the levelness in the setting process, and finishing the manufacturing of the control point after the checking is correct.
5. Using known point data to change points and strict adjustment
And (3) rotating points by using known point data, measuring parameters such as deflection angle, horizontal distance, height difference and the like between the points and the designed pile-crossing points by using an edge and angle measuring method, calculating three-dimensional coordinates of the points by acquiring the parameters, and comparing the three-dimensional coordinates with the measured lofting of the designed coordinate points, wherein the points can be used as the known points for construction control measurement after meeting the standard requirements.
6. The control point is manufactured and put into use
And after the control points are manufactured and are strictly leveled, summarizing to a control point result table, and putting the control point result table into construction control measurement lofting.
Points of construction attention
(1) The concrete 3 is combined and fixed with the forced centering disc 4, and the surface of the forced centering disc is leveled by a high-precision horizontal bubble instrument to be level with the ground. When erecting measuring lofting instruments such as a total station or a GPS, the measuring lofting instruments are connected through the connecting bolts 5. Effectively ensures that the lofting precision is consistent in each measurement.
(2) The foot rest can effectively avoid artificial deviation when being erected.
(3) The instrument does not need to be centered in the erecting process, and the measurement lofting can be carried out just like operating a level gauge.
The self-made cylinder type accurate measuring instrument base frame has the following social benefits
1. And (4) safety aspects:
firstly, the damage of falling of an instrument caused by improper manual operation can be effectively avoided, the setting and lofting of the suspension bridge can be only carried out at constant temperature at night, the setting and lofting light at night is poor, operators can easily touch foot stands to cause the damage of the instrument, and the self-made column type precision measuring instrument base frame can effectively prevent the occurrence of the time and people can not move the control point. And secondly, the points are prevented from being damaged, conventionally arranged control points are arranged on the ground, and the points are not measured for a long time, so that weeds can grow at the points, the points are difficult to identify, and the points can be damaged by carelessness in the construction process.
2. In the quality aspect:
the measuring precision can be effectively guaranteed, the guaranteeing measures of the measuring precision mainly comprise people, equipment and environment, a tripod is conventionally adopted to erect an instrument for measuring lofting, and different people and visual difference influence. In order to meet construction requirements and not always ensure that lofting can be measured at constant temperature every time, and the influence of temperature on the tripod is huge, particularly for a metal tripod, metal is sensitive to temperature, the instrument is not level due to temperature change, and measurement lofting errors occur, the self-made cylindrical precise measuring instrument base frame is used, the base frame is made of concrete, the temperature sensitivity is much smaller than that of metal, and therefore the self-made cylindrical precise measuring instrument base frame is used for guaranteeing the measurement lofting quality of a structure.
3. In the aspect of progress:
the basic steps of measuring and lofting are erecting an instrument, building a station and measuring and lofting. The frame instrument comprises centering, initially leveling and accurately leveling, the instrument is erected by a tripod conventionally, centering, initially leveling and then accurately leveling is carried out, if the erection site condition is not good, the process can be repeated for many times, and a large amount of time is spent. The station building time can be effectively shortened.
4. In the aspect of cost:
at present, the metal of a tripod on the market is restricted to 350 yuan, the wooden tripod is about 550 yuan, the service cycle is about half a year to one year, the bolt is loosened after the tripod is used for a long time, the instrument is easily inclined, the instrument falls down, the time is prolonged, and the speed for erecting the instrument is slower due to the reasons of loosening screws, rusting and the like. The manufacturing cost of the self-made cylinder type precision measuring instrument base frame is about 700 yuan, 300 yuan/sleeve of the centering plate 4 and related accessories are forced, each 90 yuan of PVC pipes with the length of 3.9 meters and the diameter of 30 centimeters can be manufactured into three points, C20 concrete is about 0.4 square, and the diameter of reinforcing steel bars is 16 KG about 8KG (most of the reinforcing steel bar house waste reinforcing steel bars are adopted). The scaffold is slightly more expensive than a wooden scaffold, but the scaffold can be made to be finished in a construction site in terms of time. Even after the system is put into operation in the later period, the system can be used for monitoring and measuring. Assuming that the construction period is three years, at least 3 wooden foot stands are used, and 550 multiplied by 3 is 1650 yuan which is larger than 700 yuan, the cost can be saved by using the self-made cylinder type precision measuring instrument base frame.
5. Controllability, repeatability, work efficiency:
the self-made cylinder type precision measuring instrument base frame is superior to a tripod in all aspects of safety, quality, progress, cost and the like, can effectively control the measuring precision firstly, can be repeatedly used, can be used for monitoring and measuring in the operation period even if a construction site is finished, can effectively improve the working benefit in the process of secondary construction and measurement, and saves the cost.
Claims (6)
1. The utility model provides a self-control accurate measuring instrument bed frame of cylinder, its characterized in that: the concrete centering device comprises a concrete foundation (1), wherein a barrel (2) is vertically fixed on the concrete foundation (1), concrete (3) which is flush with the top surface of the barrel is poured in the barrel (2), a forced centering plate (4) is fixed on the top surface of the concrete (3), and a connecting bolt (5) is fixedly arranged on the forced centering plate (4).
2. The homemade cylinder type precision measuring instrument base frame according to claim 1, characterized in that: the concrete foundation (1) surface is provided with pre-buried reinforcing bar (6) that upwards stretches into to barrel (2).
3. The homemade cylinder type precision measuring instrument base frame according to claim 1, characterized in that: the cylinder body (2) is made of hard pvc material.
4. The homemade cylinder type precision measuring instrument base frame according to claim 1, characterized in that: the concrete (3) is poured for 2 times, the distance between the concrete (3) and the top surface of the barrel (2) is 0.2-0.3m when the first pouring is finished, and the forced centering plate (4) is directly fixed on the top surface of the concrete (3) when the concrete (3) is poured during the second pouring.
5. The homemade cylinder type precision measuring instrument base frame according to claim 1, characterized in that: the connecting bolt (5) is fixed at the center of the forced centering plate (4), an external thread is arranged on the outer wall of the connecting bolt, and a thread counter bore is arranged at the center of the top surface of the connecting bolt.
6. The homemade cylinder-type precision measuring instrument base frame of claim 1, wherein: and a plurality of fixing rod pieces (7) extending into the concrete (3) are fixed on the bottom surface of the forced centering plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122581135.XU CN216621210U (en) | 2021-10-26 | 2021-10-26 | Accurate measuring instrument bed frame of self-control cylinder type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122581135.XU CN216621210U (en) | 2021-10-26 | 2021-10-26 | Accurate measuring instrument bed frame of self-control cylinder type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216621210U true CN216621210U (en) | 2022-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122581135.XU Active CN216621210U (en) | 2021-10-26 | 2021-10-26 | Accurate measuring instrument bed frame of self-control cylinder type |
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| Country | Link |
|---|---|
| CN (1) | CN216621210U (en) |
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2021
- 2021-10-26 CN CN202122581135.XU patent/CN216621210U/en active Active
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