CN119178422A - High-precision static level - Google Patents
High-precision static level Download PDFInfo
- Publication number
- CN119178422A CN119178422A CN202411692694.XA CN202411692694A CN119178422A CN 119178422 A CN119178422 A CN 119178422A CN 202411692694 A CN202411692694 A CN 202411692694A CN 119178422 A CN119178422 A CN 119178422A
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- communicated
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- liquid
- diaphragm capsule
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
- G01C5/04—Hydrostatic levelling, i.e. by flexibly interconnected liquid containers at separated points
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention relates to the technical field of static level, in particular to a high-precision static level, which comprises an instrument shell and a measuring assembly, wherein the measuring assembly comprises an instrument cover body, two socket units, a communicated coplanar flange and two sealing rings, the communicated coplanar flange is provided with an air inlet hole, an air outlet hole, a liquid inlet hole and a liquid outlet hole, pipelines are respectively arranged at the air inlet hole, the air outlet hole, the liquid inlet hole and the liquid outlet hole, a liquid path passes through a tee joint structure inside the communicated coplanar flange and is connected with a differential pressure sensor inside a diaphragm capsule through a liquid communication hole and a diaphragm capsule high-pressure side hole, an air path passes through the tee joint structure inside the communicated coplanar flange and is connected with the differential pressure sensor through a gas communication hole and a diaphragm capsule low-pressure side hole, a plurality of high-precision static level can be communicated, meanwhile, the liquid gas can be directly conveyed through a liquid path and an air path on the communicated coplanar flange, so that the pressure difference is avoided, and finally, the plurality of connected high-precision static level and the external air pressure are kept unchanged.
Description
Technical Field
The invention relates to the technical field of static level gauges, in particular to a high-precision static level gauge.
Background
The static level gauge is an instrument for measuring height difference and height difference change, is installed in a dam, a high-rise building, a tunnel and a bridge when in use, is communicated with a plurality of static level gauges by means of a liquid through pipe, and after each measuring point is placed with the static level gauge, a differential pressure sensor in the static level gauge monitors pressure change by utilizing the principle of a communicating vessel, and the liquid level height in an open communicated container is the same. The settlement amount is determined by observing the change of the liquid height in the static level in the settlement process, but the high-precision liquid level sensor has high cost and has a bottleneck in precision.
In the prior art, the device consists of a top large cylindrical cavity, a bottom small cylindrical cavity, a temperature sensor, a resistance sensor, a semipermeable membrane, a loose waterproof membrane and a shell, is simple in structure, utilizes a bottom external water pipe to be connected with an external fixed reference liquid level container, can calculate the volume of entering fresh water by testing the front-back change of the resistance, can calculate the settlement value of a measuring point by correcting the temperature tested by the temperature sensor, is simple and convenient to operate, and has high precision by calculating corrected data.
However, in the prior art, after the liquid enters from the liquid inlet of the level, the liquid needs to be discharged from the liquid outlet on the other side of the level, and a corner is formed in the level by the liquid path, so that pressure difference is easily generated, and accuracy is affected.
Disclosure of Invention
The invention aims to provide a high-precision static level, which solves the problems that in the prior art, liquid and gas need to circulate from the inside of the level in the conveying process, so that corners can appear, the liquid and the gas can generate pressure difference at the corners, and finally, a plurality of connected high-precision static levels generate pressure difference to influence the measurement precision.
In order to achieve the above object, the present invention provides a high-precision static level, comprising an instrument housing and a measuring assembly;
The measuring assembly comprises a communicated coplanar flange and a diaphragm capsule, wherein the communicated coplanar flange is provided with an air inlet hole, an air outlet hole, a liquid inlet hole and a liquid outlet hole, the communicated coplanar flange is further provided with a gas communication hole and a liquid communication hole, the communicated coplanar flange is connected with the instrument shell through bolts, the gas communication hole is communicated with the air inlet hole and the air outlet hole, the liquid communication hole is communicated with the liquid inlet hole and the liquid outlet hole, the diaphragm capsule is arranged below the instrument shell and is provided with a diaphragm capsule high-pressure side hole and a diaphragm capsule low-pressure side hole, the liquid communication hole is communicated with the diaphragm capsule high-pressure side hole, and the gas communication hole is communicated with the diaphragm capsule low-pressure side hole.
The measuring assembly further comprises an instrument cover body, two sealing rings and a nameplate, wherein the instrument cover body is in threaded connection with the upper portion of the instrument shell, the nameplate is in threaded connection with the instrument shell, and the two sealing rings are respectively located on the diaphragm capsule high-pressure side hole and the diaphragm capsule low-pressure side hole.
The measuring assembly further comprises two waterproof cable sockets, and the two waterproof cable sockets are symmetrically arranged on the instrument shell.
The high-precision static level comprises a meter shell, wherein the high-precision static level further comprises two clamping assemblies, and the two clamping assemblies are symmetrically arranged on the meter shell.
The clamping assembly comprises a rotating plate, two fixing blocks, fixing bolts, a supporting plate and two clamping units, wherein the two fixing blocks are fixedly connected with the instrument shell and are located on one side of the instrument shell, one end of the rotating plate is rotationally connected with the two fixing blocks and located between the two fixing blocks, the fixing bolts are arranged between the fixing blocks and the rotating plate, the supporting plate is fixedly connected with the rotating plate and located at the other end of the rotating plate, and the two clamping units are symmetrically arranged on the supporting plate.
The clamping unit comprises a fixing plate, a rebound mechanism, an arc clamping plate, a shifting block, an arc base and a plurality of anti-slip rubber blocks, wherein the fixing plate is fixedly connected with the rotating plate and is positioned on one side of the rotating plate, the arc base is fixedly connected with the supporting plate and is positioned on one side of the supporting plate, the arc clamping plate is rotationally connected with the arc base and is positioned on one side of the arc base, the shifting block is fixedly connected with the arc clamping plate and is positioned on the outer side of the arc clamping plate, the rebound mechanism is arranged between the arc clamping plate and the fixing plate, and the anti-slip rubber blocks are sequentially arranged on the arc clamping plate and the inside of the arc base.
The elastic mechanism comprises a cylinder body, an expansion link and a spring, wherein the cylinder body is rotationally connected with the fixed plate, one end of the expansion link is in sliding connection with the cylinder body, the other end of the expansion link is rotationally connected with the arc-shaped clamping plate, two ends of the spring are respectively in movable connection with one end of the expansion link and the inner wall of the cylinder body, and the spring is located inside the cylinder body.
According to the high-precision static level, after the diaphragm capsule is internally provided with the differential pressure sensor, the communicated coplanar flange is provided with the pipelines respectively arranged at the air inlet hole, the air outlet hole, the liquid inlet hole and the liquid outlet hole, liquid enters the liquid path from the liquid inlet hole, then passes through the three-way structure formed by the liquid communication hole and the diaphragm capsule high-pressure side hole, and is connected with the differential pressure sensor in the diaphragm capsule and finally discharged from the liquid outlet hole, gas enters the air path through the air inlet hole, then passes through the three-way structure formed by the gas communication hole and the diaphragm capsule low-pressure side hole, and is connected with the differential pressure sensor, then is sequentially communicated with a plurality of levels to form the communicated level.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic overall structure of a first embodiment of the present invention.
Fig. 2 is an overall side view of the first embodiment of the present invention.
Fig. 3 is a cross-sectional view taken along line A-A of fig. 2 in accordance with the present invention.
FIG. 4 is a schematic illustration of the construction of a communicating coplanar flange of the present invention.
Fig. 5 is a schematic overall structure of a second embodiment of the present invention.
Fig. 6 is a sectional view taken along line B-B of fig. 2 in accordance with the present invention.
Fig. 7 is a schematic overall structure of a third embodiment of the present invention.
101-Instrument shell, 102-bellows high-pressure side hole, 103-communicated coplanar flange, 104-sealing ring, 105-air inlet, 106-air outlet, 107-liquid inlet, 108-liquid outlet, 109-gas communication hole, 110-liquid communication hole, 111-bellows low-pressure side hole, 112-nameplate, 113-instrument cover, 114-bellows, 115-waterproof cable socket, 201-rotating plate, 202-fixed block, 203-fixed bolt, 204-supporting plate, 205-fixed plate, 206-arc clamping plate, 207-shifting block, 208-arc base, 209-anti-skid rubber block, 210-cylinder, 211-telescopic rod, 212-spring, 301-mounting plate, 302-threaded rod, 303-rotating handle and 304-threaded hole.
Detailed Description
The following detailed description of embodiments of the invention, examples of which are illustrated in the accompanying drawings and, by way of example, are intended to be illustrative, and not to be construed as limiting, of the invention.
First embodiment:
referring to fig. 1 to 4, the present invention provides a high-precision static level, which comprises an instrument housing 101 and a measurement assembly, wherein the measurement assembly comprises an instrument cover 113, two socket units, a communicating coplanar flange 103, two sealing rings 104 and a nameplate 112, the communicating coplanar flange 103 is provided with an air inlet 105, an air outlet 106, a liquid inlet 107 and a liquid outlet 108, and the communicating coplanar flange 103 is also provided with a gas communication hole 109 and a liquid communication hole 110.
The communicating coplanar flange 103 is further provided with a gas communication hole and a liquid communication hole, the communicating coplanar flange is in bolted connection with the instrument shell, the gas communication hole is in communication with the gas inlet hole and the gas outlet hole, the liquid communication hole is in communication with the liquid inlet hole and the liquid outlet hole, the diaphragm capsule is arranged below the instrument shell and is provided with a diaphragm capsule high-pressure side hole and a diaphragm capsule low-pressure side hole, the liquid communication hole is in communication with the diaphragm capsule high-pressure side hole, and the gas communication hole is in communication with the diaphragm capsule low-pressure side hole. The diaphragm capsule 114 is internally provided with a differential pressure sensor, after the communicating coplanar flange 103 is installed, pipelines are respectively installed at the air inlet 105, the air outlet 106, the liquid inlet 107 and the liquid outlet 108, a liquid path passes through a tee joint structure inside the communicating coplanar flange 103, passes through the liquid communication hole 110 and the diaphragm capsule high-pressure side hole 102 and is connected with the differential pressure sensor inside the diaphragm capsule 114, an air path passes through the tee joint structure inside the communicating coplanar flange 103 and is connected with the differential pressure sensor through the gas communication hole 109 and the diaphragm capsule low-pressure side hole 111, and then can be connected with various differential pressure transmitters or differential pressure sensors to form a communicating level, and a circuit board inside the instrument shell 101 can be checked and maintained through opening and closing of the instrument cover 113.
Secondly, the meter cover 113 is in threaded connection with the upper side of the meter housing 101, the nameplate 112 is in bolted connection with the meter housing 101, and the two sealing rings 104 are respectively located on the bellows high-pressure side hole 102 and the bellows low-pressure side hole 111. The nameplate 112 is used for displaying equipment information, a circuit board is arranged in the instrument shell, and the instrument cover body is convenient to detach and maintain and replace the circuit board arranged in the instrument shell.
Meanwhile, two of the waterproof cable sockets 115 are symmetrically disposed on the meter case 101. The waterproof cable holder 115 may be used for energizing a level gauge, and the bellows 114 may have a differential pressure sensor mounted therein.
When the high-precision static level is used, a differential pressure sensor is installed in the diaphragm capsule 114, after the communicating coplanar flange 103 is installed, pipelines are respectively installed in the air inlet 105, the air outlet 106, the liquid inlet 107 and the liquid outlet 108, a liquid path passes through a three-way structure in the communicating coplanar flange 103, passes through the liquid communication hole 110 and the diaphragm capsule high-pressure side hole 102 and is connected with the differential pressure sensor in the diaphragm capsule 114, an air path passes through the three-way structure in the communicating coplanar flange 103 and is connected with the differential pressure sensor through the gas communication hole 109 and the diaphragm capsule low-pressure side hole 111, and then can be connected with various differential pressure transmitters or differential pressure sensors to form the communicating level, a plurality of high-precision levels can be communicated through the arrangement of the structures by opening and closing the circuit board in the instrument cover body 113, and meanwhile, liquid gas can be directly conveyed through the liquid path on the communicating coplanar flange 103 to avoid the occurrence of multiple static levels, and the pressure difference between the external pressure level and the pressure level is avoided.
Second embodiment:
On the basis of the first embodiment, referring to fig. 5 and 6, the present invention provides a high-precision static level, further comprising two clamping assemblies, the clamping assemblies comprising a rotating plate 201, two fixing blocks 202, a fixing bolt 203, a supporting plate 204 and two clamping units, the clamping units comprising a fixing plate 205, a rebound mechanism, an arc clamping plate 206, a shifting block 207, an arc base 208 and a plurality of anti-slip rubber blocks 209, the rebound mechanism comprising a cylinder 210, a telescopic rod 211 and a spring 212.
Wherein, two clamping assemblies are symmetrically arranged on the instrument housing 101. The clamping assembly can clamp the pipeline connected with the air outlet hole 106, the air inlet hole 105, the liquid outlet hole 108 and the liquid inlet hole 107, so that the problem that the pipeline easily falls off and loosens to cause position deviation to influence the precision is avoided, and the use stability is improved.
Secondly, two fixed blocks 202 are fixedly connected with the meter housing 101 and are located at one side of the meter housing 101, one end of the rotating plate 201 is rotatably connected with two fixed blocks 202 and located between the two fixed blocks 202, fixing bolts 203 are arranged between the fixed blocks 202 and the rotating plate 201, the supporting plate 204 is fixedly connected with the rotating plate 201 and located at the other end of the rotating plate 201, and the two clamping units are symmetrically arranged on the supporting plate 204. The rotating plate 201 is rotated to a proper position, and then the fixing bolts 203 are tightened to fix the rotating plate 201 so that it cannot rotate, and the supporting plate 204 supports the clamping unit, at which time the pipe is clamped by the clamping unit.
Meanwhile, the fixing plate 205 is fixedly connected to the rotating plate 201 and is located at one side of the rotating plate 201, the arc base 208 is fixedly connected to the supporting plate 204 and is located at one side of the supporting plate 204, the arc clamping plate 206 is rotatably connected to the arc base 208 and is located at one side of the arc base 208, the shifting block 207 is fixedly connected to the arc clamping plate 206 and is located at the outer side of the arc clamping plate 206, and the rebound mechanism is arranged between the arc clamping plate 206 and the fixing plate 205, and a plurality of anti-slip rubber blocks 209 are sequentially arranged inside the arc clamping plate 206 and the arc base 208. The fixed plate 205 supports the rebound mechanism, the pipeline is placed on the arc base 208, the rebound mechanism drives the arc clamping plate 206 to rebound, so that the pipeline is clamped, at the moment, the anti-slip rubber block 209 can play an anti-slip role, the clamping stability is improved, and the poking block 207 can be convenient for poking and opening the arc clamping plate 206.
Finally, the cylinder 210 is rotatably connected with the fixing plate 205, one end of the telescopic rod 211 is slidably connected with the cylinder 210, the other end of the telescopic rod 211 is rotatably connected with the arc-shaped clamping plate 206, two ends of the spring 212 are respectively movably connected with one end of the telescopic rod 211 and the inner wall of the cylinder 210, and the spring 212 is located inside the cylinder 210. The spring 212 rebounds to drive the telescopic rod 211 to slide in the cylinder 210, so that the arc-shaped clamping plate 206 rotates to clamp the pipeline.
When the high-precision static leveling instrument is used, the rotating plate 201 is rotated to a proper position, then the fixing bolt 203 is screwed, the rotating plate 201 is fixed, so that the rotating plate 201 cannot rotate, a pipeline is placed on the arc-shaped base 208 at the moment, the spring 212 rebounds to drive the telescopic rod 211 to slide in the barrel 210, the arc-shaped clamping plate 206 rotates to clamp the pipeline, at the moment, the anti-slip rubber block 209 can play an anti-slip role, the clamping stability is improved, the shifting block 207 can conveniently stir and open the arc-shaped clamping plate 206, and therefore the pipeline connected with the air outlet hole 106, the air inlet hole 105, the liquid outlet hole 108 and the liquid inlet hole 107 is clamped, the problem that the pipeline easily falls off and loosens to cause position offset to affect the precision is avoided, and the use stability is improved.
Third embodiment:
The high-precision hydrostatic level further comprises two reinforcing components, and the two reinforcing components are symmetrically arranged on the instrument shell 101. The reinforcement assembly comprises a mounting plate 301, a threaded rod 302 and a rotating handle 303, wherein the mounting plate 301 is fixedly connected with the instrument shell 101 and is located on one side of the instrument shell 101, the rotating plate 201 is provided with a threaded hole 304, the threaded rod 302 and the threaded hole 304 are mutually matched, and the rotating handle 303 is fixedly connected with the threaded rod 302 and is located above the threaded rod 302.
On the basis of the second embodiment, referring to fig. 7, the present invention provides a high-precision hydrostatic level, and further includes two reinforcing components, including a mounting plate 301, a threaded rod 302, and a rotating handle 303.
Wherein, two said reinforcing components are symmetrically arranged on said meter housing 101. The reinforcing component fixes the unused rotating plate 201, so as to avoid false rotation.
Secondly, the mounting plate 301 is fixedly connected with the meter housing 101 and is located at one side of the meter housing 101, the rotating plate 201 is provided with a threaded hole 304, the threaded rod 302 is mutually matched with the threaded hole 304, and the rotating handle 303 is fixedly connected with the threaded rod 302 and is located above the threaded rod 302. When the pipe is not required to be clamped, the fixing bolt 203 is unscrewed, the rotating plate 201 is rotated, the threaded hole 304 is located below the threaded rod 302, the fixing bolt 203 is screwed at the moment, then the rotating handle 303 is rotated, the threaded rod 302 is driven to rotate, the threaded hole 304 is screwed, the threaded rod 302 is inserted on the mounting plate 301, and the mounting plate 301 plays a supporting role.
When the high-precision static level is used, the fixing bolt 203 is unscrewed and the rotating plate 201 is rotated when the pipe is not required to be clamped, so that the threaded hole 304 is positioned below the threaded rod 302, the fixing bolt 203 is screwed at the moment, then the rotating handle 303 is rotated to drive the threaded rod 302 to rotate and screw into the threaded hole 304, and therefore the unused rotating plate 201 is fixed, and false rotation is avoided.
The foregoing disclosure is only illustrative of one or more preferred embodiments of the present application, and it is not intended to limit the scope of the claims hereof, as persons of ordinary skill in the art will understand that all or part of the processes for practicing the embodiments described herein may be practiced with equivalent variations in the claims, which are within the scope of the application.
Claims (7)
1. A high-precision static level comprises an instrument shell, and is characterized in that,
The measuring assembly is also included;
The measuring assembly comprises a communicated coplanar flange and a diaphragm capsule, wherein the communicated coplanar flange is provided with an air inlet hole, an air outlet hole, a liquid inlet hole and a liquid outlet hole, the communicated coplanar flange is further provided with a gas communication hole and a liquid communication hole, the communicated coplanar flange is connected with the instrument shell through bolts, the gas communication hole is communicated with the air inlet hole and the air outlet hole, the liquid communication hole is communicated with the liquid inlet hole and the liquid outlet hole, the diaphragm capsule is arranged below the instrument shell and is provided with a diaphragm capsule high-pressure side hole and a diaphragm capsule low-pressure side hole, the liquid communication hole is communicated with the diaphragm capsule high-pressure side hole, and the gas communication hole is communicated with the diaphragm capsule low-pressure side hole.
2. The high precision hydrostatic level of claim 1, wherein,
The measuring assembly further comprises an instrument cover body, two sealing rings and a nameplate, wherein the instrument cover body is in threaded connection with the upper portion of the instrument shell, the nameplate is in threaded connection with the instrument shell, and the two sealing rings are respectively located on the diaphragm capsule high-pressure side hole and the diaphragm capsule low-pressure side hole.
3. A high precision hydrostatic level as defined in claim 2, wherein,
The measuring assembly further comprises two waterproof cable sockets, and the two waterproof cable sockets are symmetrically arranged on the instrument shell.
4. A high precision hydrostatic level as claimed in claim 3, wherein,
The high-precision static level also comprises two clamping assemblies, and the two clamping assemblies are symmetrically arranged on the instrument shell.
5. The high precision hydrostatic level of claim 4, wherein,
The clamping assembly comprises a rotating plate, two fixing blocks, fixing bolts, a supporting plate and two clamping units, wherein the two fixing blocks are fixedly connected with the instrument shell and are located on one side of the instrument shell, one end of the rotating plate is rotationally connected with the two fixing blocks and located between the two fixing blocks, the fixing blocks and the rotating plate are provided with the fixing bolts, the supporting plate is fixedly connected with the rotating plate and located at the other end of the rotating plate, and the two clamping units are symmetrically arranged on the supporting plate.
6. The high precision hydrostatic level of claim 5, wherein,
The clamping unit comprises a fixing plate, a rebound mechanism, an arc clamping plate, a shifting block, an arc base and a plurality of anti-slip rubber blocks, wherein the fixing plate is fixedly connected with the rotating plate and is positioned on one side of the rotating plate, the arc base is fixedly connected with the supporting plate and is positioned on one side of the supporting plate, the arc clamping plate is rotationally connected with the arc base and is positioned on one side of the arc base, the shifting block is fixedly connected with the arc clamping plate and is positioned on the outer side of the arc clamping plate, the rebound mechanism is arranged between the arc clamping plate and the fixing plate, and the anti-slip rubber blocks are sequentially arranged on the arc clamping plate and the inside of the arc base.
7. The high precision hydrostatic level of claim 6, wherein,
The rebound mechanism comprises a cylinder body, a telescopic rod and a spring, wherein the cylinder body is rotationally connected with the fixed plate, one end of the telescopic rod is in sliding connection with the cylinder body, the other end of the telescopic rod is rotationally connected with the arc-shaped clamping plate, two ends of the spring are respectively and movably connected with one end of the telescopic rod and the inner wall of the cylinder body, and the spring is located inside the cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411692694.XA CN119178422A (en) | 2024-11-25 | 2024-11-25 | High-precision static level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411692694.XA CN119178422A (en) | 2024-11-25 | 2024-11-25 | High-precision static level |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119178422A true CN119178422A (en) | 2024-12-24 |
Family
ID=93898249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411692694.XA Pending CN119178422A (en) | 2024-11-25 | 2024-11-25 | High-precision static level |
Country Status (1)
| Country | Link |
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| CN (1) | CN119178422A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206113923U (en) * | 2016-09-23 | 2017-04-19 | 华南理工大学 | Utilize device that hydrostatic pressure measurement probe is high |
| CN106969747A (en) * | 2017-03-20 | 2017-07-21 | 西安星展测控科技股份有限公司 | Hydrostatic leveling system |
| CN209197968U (en) * | 2018-12-14 | 2019-08-02 | 上海恩邦自动化仪表有限公司 | A kind of differential pressure transmitter |
| CN220649724U (en) * | 2023-09-07 | 2024-03-22 | 临沂市检验检测中心 | Clamping and adjusting mechanism for water meter detection |
-
2024
- 2024-11-25 CN CN202411692694.XA patent/CN119178422A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206113923U (en) * | 2016-09-23 | 2017-04-19 | 华南理工大学 | Utilize device that hydrostatic pressure measurement probe is high |
| CN106969747A (en) * | 2017-03-20 | 2017-07-21 | 西安星展测控科技股份有限公司 | Hydrostatic leveling system |
| CN209197968U (en) * | 2018-12-14 | 2019-08-02 | 上海恩邦自动化仪表有限公司 | A kind of differential pressure transmitter |
| CN220649724U (en) * | 2023-09-07 | 2024-03-22 | 临沂市检验检测中心 | Clamping and adjusting mechanism for water meter detection |
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Application publication date: 20241224 |