CN212988345U - Static level gauge of grid ruler displacement sensor - Google Patents
Static level gauge of grid ruler displacement sensor Download PDFInfo
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- CN212988345U CN212988345U CN202021878143.XU CN202021878143U CN212988345U CN 212988345 U CN212988345 U CN 212988345U CN 202021878143 U CN202021878143 U CN 202021878143U CN 212988345 U CN212988345 U CN 212988345U
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Abstract
本实用新型涉及一种栅尺位移传感器静力水准仪，在基准墩（1）和监测墩（18）上分别固定设置测量筒（8），测量筒（8）内壁固定支架（10），固定支架（10）的端部设有读数头（7），球栅尺（6）穿装在读数头（7）内，球栅尺（6）下端固定安装浮体（12），基准墩（1）上设有控制器（2），各读数头（7）分别通过线缆（11）与控制器（2）相连接，气连通管（9）通过孔将各测量筒（8）连通在一起，各测量筒（8）的底板（5）上开有孔并与液体连通管（13）相连接，液体连通管（13）的端部设有控制阀（15）及注液口（16）。本实用新型精度高、稳定可靠、价格低廉，有较好的应用前景。
The utility model relates to a static level of a scale displacement sensor, wherein a measuring cylinder (8) is respectively fixed on a reference pier (1) and a monitoring pier (18), a fixing bracket (10) on the inner wall of the measuring cylinder (8), and the fixing bracket The end of (10) is provided with a reading head (7), the ball scale (6) is inserted into the reading head (7), the lower end of the ball scale (6) is fixedly installed with a floating body (12), and the datum pier (1) is mounted on the A controller (2) is provided, each reading head (7) is connected with the controller (2) through a cable (11), and an air communication pipe (9) connects the measuring cylinders (8) together through holes, and each measuring cylinder (8) is connected together through a hole. The bottom plate (5) of the measuring cylinder (8) is provided with a hole and is connected with a liquid communication pipe (13), the end of the liquid communication pipe (13) is provided with a control valve (15) and a liquid injection port (16). The utility model has the advantages of high precision, stability and reliability, low price and good application prospect.
Description
Technical Field
The utility model belongs to the technical field of measure, especially, relate to a bar displacement sensor hydrostatic level, can be applied to and measure vertical deflection, can be applied to accurate, the real-time measurement of all kinds of buildings and equipment vertical displacement, can be applied to the vertical deflection measurement of buildings such as dam, sluice, road, bridge, tunnel, main equipment basis, side slope.
Background
Hydrostatic leveling is commonly used for vertical displacement measurements. The basic principle is that the measurement of vertical displacement is realized by utilizing the equal potential energy of communicated liquid, namely equal liquid level elevation. The method has clear principle, is combined with the modern displacement sensing technology, can realize high precision, can monitor the displacement in real time and continuously monitor the vertical displacement change of an object. At present, the commonly used static level gauges are classified according to measurement modes, and have several modes such as an artificial measurement mode, a laser measurement mode, a magnetostrictive measurement mode and a pressure sensor measurement mode. Wherein, the manual measurement formula is gradually eliminated because of large error and high labor intensity. The pressure sensor is easy to break down due to corrosion and the like because of direct contact with water, and is low in precision and less in application. The laser measurement method is not mature in technology in China because of a core component, namely a high-precision laser displacement sensor, and most of the laser measurement methods depend on imports at present, so that the price is high; the magnetostrictive material is greatly influenced by the external environment, so that the popularization and the application are limited.
Disclosure of Invention
In order to provide a stable and reliable static level gauge with high precision, proper price and completely independent intellectual property rights, a grid ruler static level gauge is developed through experiments, wherein the grid ruler is a bar which is uniformly distributed with certain intervals in different modes on a measuring path, such as a magnetic grid, a capacitive grid, a grating or a ball grid, and the grid bars can be positioned by induction through different methods, so that displacement measurement is realized; or, the same size (generally, tiny size) of the sensitive object is installed on the measuring path to perform the sensing measurement, for example, a ball grid ruler is used for installing metal balls with the same diameter in the pipe as the sensitive object, thereby realizing the displacement measurement.
The utility model aims at providing a grid static level, which comprises a ball grid ruler, a magnetic grid ruler, a grating ruler, a grid holding ruler and the like; can reduce the cost under the condition of ensuring higher precision, and completely realize domestic production by utilizing the prior art in China. The description will be given below taking a ball grid ruler as an example. The technical scheme adopted for realizing the utility model is as follows: the utility model provides a bar displacement sensor hydrostatic level which characterized in that: the leveling instrument is provided with a reference pier and a monitoring pier, wherein the reference pier is used as a fixed reference point, the monitoring pier is used as a monitoring point, measuring cylinders are fixedly arranged on the reference pier and the monitoring pier respectively, the internal structures of the measuring cylinders are the same, a fixing support is welded at the middle part of the height of the inner wall of each measuring cylinder, and a reading head is arranged at the end part of the fixing support and is in a circular ring shape, so that the center of the circular ring is coincided with the axis of each measuring cylinder; the ball bar ruler is arranged in the reading head in a penetrating mode, the floating body is fixedly installed at the lower end of the ball bar ruler, the upper cover is arranged on the measuring cylinder, the measuring cylinder is in threaded connection with the upper cover, the bottom surface of the measuring cylinder is provided with a bottom plate, the controller is arranged on the reference pier, each reading head is connected with the controller through a cable respectively, a power supply is provided, measured data are transmitted to the controller, holes are formed in the cylinder wall of the upper portion of the measuring cylinder respectively, the measuring cylinders are communicated through the air communicating pipe, the parts above the liquid level in the measuring cylinder, installed on the reference point and the monitoring point, are communicated, the air pressure of the upper portion is equal, holes are formed in the bottom plate of each measuring cylinder and are connected with the liquid communicating pipe, and. The measuring cylinder is characterized in that three fixing bolts are embedded in the reference pier and the monitoring pier respectively, three holes are uniformly arranged on the edge of the relative bottom plate respectively, the fixing bolts are inserted in the holes of the bottom plate in a penetrating mode, and the measuring cylinder is fixed on the reference pier and the monitoring pier through the leveling nuts and the compression nuts.
The method is characterized in that a plurality of measuring points are arranged at the position of a building or equipment to be measured, which needs to measure vertical displacement, and a base point is arranged on a stable stratum near the building. Monitoring piers are arranged at the base points and the measuring points, the monitoring piers are generally made of concrete materials, and the mounting heights of the measuring cylinders are basically equal. The measuring cylinders are communicated by pipelines, liquid is filled in the measuring cylinders, and the liquid level is about the middle of the height of the measuring cylinders. The device comprises a cylinder, a floating body, a cylindrical ball grid ruler, a horizontal support, a reading head, a circular ring reading head, a circle center and a measuring cylinder axis, wherein the floating body is arranged on the liquid level in the cylinder, the cylindrical ball grid ruler is vertically arranged on the floating body, the buoyancy force generated by the floating body is larger than the sum of the gravity of the floating body and the ball grid ruler, the horizontal support is welded at the middle position of the measuring cylinder, the reading head is arranged at the tail end of the support and is circular, the circle center of the circle coincides with the axis of.
The top cylinder wall of the measuring cylinder is provided with a hole and is connected with a vent pipe to communicate with the upper air chambers of all the measuring cylinders, so that the upper air pressures of all the measuring cylinders are equal.
During measurement, the base point is fixed, and the settlement of the measuring point is set as y1. At this time, the liquid level on the base point is lowered by x relative to the cylinder body0Driving the floating body and the upper ball grid ruler to descend by x0The value is measured by a reading head of the base point and is transmitted to the controller; measured point liquid level rises x relative to the cylinder1This value is measured at the same time by the read head of the measuring point and is transmitted to the controller. The geometrical relationship shows that: y is1= x0+x1。
According to design requirements, a plurality of measuring points are arranged, and the general formula of the vertical displacement of the nth measuring point is as follows:
yn=x0+xn
wherein:
yn-vertical displacement of the nth station;
x0the lifting amount of the liquid level of the base point measuring cylinder relative to the self cylinder body is measured by a reading head of the base point;
xnthe liquid level of the measuring cylinder of the nth measuring point rises and falls relative to the cylinder body of the measuring cylinder, and is measured by a reading head of the measuring point at the same moment;
at the same time, it is provided that: the amount of increase is negative and the amount of decrease is positive.
The utility model discloses the precision is high, reliable and stable, low price, has better application prospect.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a reference pier; 2. a controller; 3. a leveling nut; 4. a compression nut; 5. a base plate; 6. a ball grid ruler; 7. a reading head; 8. a measuring cylinder; 9. a gas communicating pipe; 10. fixing a bracket; 11. a cable; 12. a float; 13. a liquid communicating pipe; 14. fixing the bolt; 15. a control valve; 16. a liquid injection port; 17. an upper cover, 18, a monitoring pier,
the specific implementation mode is as follows:
the utility model can be realized by utilizing a ball grid ruler, a magnetic grid ruler, a grating ruler and a capacitance grid ruler; the ball grid ruler will now be described as an example.
Referring to the attached drawings, a grid ruler displacement sensor static level is characterized in that: the level is provided with a reference pier 1 and a monitoring pier 18, wherein the reference pier 1 is used as a fixed reference point, the monitoring pier 18 is used as a monitoring point, measuring cylinders 8 are respectively and fixedly arranged on the reference pier 1 and the monitoring pier 18, the internal structures of the measuring cylinders 8 are the same, a fixing support 10 is welded at the middle part of the inner wall height of each measuring cylinder 8, a reading head 7 is arranged at the end part of the fixing support 10, and the reading head 7 is in a circular ring shape, so that the center of the circular ring is coincided with the axis of the measuring cylinder 8; the ball bar ruler 6 is arranged in the reading head 7 in a penetrating way, a floating body 12 is fixedly arranged at the lower end of the ball bar ruler 6, an upper cover 17 is arranged on the measuring cylinder 8, the measuring cylinder 8 is in threaded connection with the upper cover 17, a bottom plate 5 is arranged on the bottom surface of the measuring cylinder 8, a controller 2 is arranged on the reference pier 1, each reading head 7 is respectively connected with the controller 2 through a cable 11 to provide power supply and transmit measured data to the controller 2, holes are respectively arranged on the cylinder wall of the upper part of the measuring cylinder 8, the measuring cylinders 8 are communicated together through the holes of an air communicating pipe 9, the reference point and the part above the liquid level in the measuring cylinder arranged on the monitoring point are communicated, so that the air pressure of the upper part is equal, holes are arranged on the bottom plate 5 of each measuring cylinder 8 and are connected with a liquid communicating pipe 13, and a control. Three first fixing bolts 14 are respectively embedded in the reference pier 1 and the monitoring pier 18, three holes are respectively and uniformly arranged on the edge opposite to the bottom plate 5, the fixing bolts 14 penetrate through the holes in the bottom plate 5, and the measuring cylinder 8 is fixed on the reference pier 1 and the monitoring pier 18 by utilizing the leveling nuts 3 and the compression nuts 4. The mounting elevations of the measuring cylinders 8 are basically equal. The monitoring pier 18 can be arranged in a plurality according to design requirements.
Setting a reference pier as a fixed reference point on a stable point near a measured building or equipment; the same monitoring pier is arranged as a monitoring point at the position where the vertical displacement needs to be detected. The monitoring piers are usually made of concrete materials, and a plurality of monitoring piers can be arranged according to design requirements.
After the mounting, the control valve 15 is opened, and liquid is filled through the liquid filling port 16 so that the liquid level in the measuring cylinder mounted on the reference point and the monitoring point is at an appropriate position. When the monitoring points generate vertical displacement, the liquid level change in each measuring cylinder relative to the cylinder body can be measured by the reference points and the ball grid ruler in the monitoring points, the data are sent to the controller 2, and the controller 2 is internally provided with a calculation program, so that the vertical displacement variable quantity of each measuring point at any moment can be calculated. The controller 2 can transmit data back to the computer of the control center in a wired or wireless mode for the use of the manager.
Claims (6)
1. The utility model provides a bar displacement sensor hydrostatic level which characterized in that: the level is provided with a reference pier (1) and a monitoring pier (18), wherein the reference pier (1) is used as a fixed reference point, the monitoring pier (18) is used as a monitoring point, measuring cylinders (8) are respectively and fixedly arranged on the reference pier (1) and the monitoring pier (18), the internal structures of the measuring cylinders (8) are the same, a fixed support (10) is welded at the middle part of the height of the inner wall of each measuring cylinder (8), a reading head (7) is arranged at the end part of the fixed support (10), the reading head (7) is in a circular ring shape, a ball grid ruler (6) is arranged in the reading head (7) in a penetrating manner, a floating body (12) is fixedly arranged at the lower end of the ball grid ruler (6), an upper cover (17) is arranged on the measuring cylinder (8), a bottom plate (5) is arranged on the bottom surface of each measuring cylinder (8), a controller (2) is arranged on the reference pier (1), each reading head (7) is respectively connected with the controller (2) through, holes are respectively arranged on the cylinder wall of the upper part of the measuring cylinder (8), an air communicating pipe (9) communicates the measuring cylinders (8) together through the holes, the reference point and the part above the liquid level in the measuring cylinder arranged on the monitoring point are communicated, so that the air pressure of the upper part is equal, holes are arranged on the bottom plate (5) of each measuring cylinder (8) and are connected with a liquid communicating pipe (13), and the end part of the liquid communicating pipe (13) is provided with a control valve (15) and a liquid injection port (16).
2. The grid displacement sensor hydrostatic level of claim 1, wherein: the measuring cylinder is characterized in that three first fixing bolts (14) are embedded in the reference pier (1) and the monitoring pier (18) respectively, three holes are uniformly arranged in the edge of the relative bottom plate (5) respectively, the fixing bolts (14) penetrate through the holes in the bottom plate (5), and the measuring cylinder (8) is fixed on the reference pier (1) and the monitoring pier (18) through the leveling nuts (3) and the compression nuts (4).
3. The grid displacement sensor hydrostatic level of claim 1, wherein: the mounting elevations of the measuring cylinders (8) are basically equal.
4. The grid displacement sensor hydrostatic level of claim 1, wherein: the center of the ring of the reading head (7) is coincided with the axis of the measuring cylinder (8).
5. The grid displacement sensor hydrostatic level of claim 1, wherein: the measuring cylinder (8) is connected with the upper cover (17) by screw thread.
6. The grid displacement sensor hydrostatic level of claim 1, wherein: the monitoring pier (18) can be arranged in a plurality according to design requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021878143.XU CN212988345U (en) | 2020-09-01 | 2020-09-01 | Static level gauge of grid ruler displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021878143.XU CN212988345U (en) | 2020-09-01 | 2020-09-01 | Static level gauge of grid ruler displacement sensor |
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| Publication Number | Publication Date |
|---|---|
| CN212988345U true CN212988345U (en) | 2021-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021878143.XU Withdrawn - After Issue CN212988345U (en) | 2020-09-01 | 2020-09-01 | Static level gauge of grid ruler displacement sensor |
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| Country | Link |
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| CN (1) | CN212988345U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111854690A (en) * | 2020-09-01 | 2020-10-30 | 田维伟 | A Scale Displacement Sensor Static Level |
-
2020
- 2020-09-01 CN CN202021878143.XU patent/CN212988345U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111854690A (en) * | 2020-09-01 | 2020-10-30 | 田维伟 | A Scale Displacement Sensor Static Level |
| CN111854690B (en) * | 2020-09-01 | 2025-03-18 | 田维伟 | A static level gauge with scale displacement sensor |
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20210416 Effective date of abandoning: 20250318 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20210416 Effective date of abandoning: 20250318 |