CN220602644U - Static pressure type open channel dynamic water level measuring device - Google Patents
Static pressure type open channel dynamic water level measuring device Download PDFInfo
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- CN220602644U CN220602644U CN202322352846.9U CN202322352846U CN220602644U CN 220602644 U CN220602644 U CN 220602644U CN 202322352846 U CN202322352846 U CN 202322352846U CN 220602644 U CN220602644 U CN 220602644U
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- 230000003068 static effect Effects 0.000 title claims abstract description 59
- 230000000712 assembly Effects 0.000 claims description 11
- 238000000429 assembly Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 27
- 230000000694 effects Effects 0.000 description 7
- 238000007789 sealing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model discloses a static pressure type open channel dynamic water level measuring device, relates to the technical field of flow metering equipment, and mainly aims to provide a static pressure type open channel dynamic water level measuring device capable of reducing measuring errors of dynamic water levels. The main technical scheme of the utility model is as follows: a static pressure open channel dynamic water level measurement device, comprising: one end of the telescopic rod assembly is vertically and fixedly connected to the middle part of the balance rod assembly; the elastic measuring component comprises an elastic connector and a static pressure sensor, the other end of the telescopic rod component is vertically connected to the middle part of the measuring rod, one end of the elastic connector is detachably connected to the measuring rod, and the other end of the elastic connector is connected to the static pressure sensor; the display component comprises a connecting wire and a display component, one end of the connecting wire is connected to the display component, and the other end of the connecting wire is connected to each static pressure sensor. The utility model is mainly used for measuring the dynamic water level.
Description
Technical Field
The utility model relates to the technical field of flow metering equipment, in particular to a static pressure type open channel dynamic water level measuring device.
Background
With the increasing tension of water resources and the importance of water resource metering work, open channel flow is from the previous non-metering, rough metering to the current accurate metering requirement. The instantaneous flow of the open channel is obtained by integrating the flow rate and the sectional area of the water, and the sectional area of the water flow is obtained by calculating the size of the open channel and the real-time water level. Because open channel flow is a dynamic process and is affected by factors such as water surface fluctuation, water surface bubbles, impurities in water, bottom deposition and the like, the water level becomes one of the parameters with the greatest measurement difficulty.
The conventional open channel water level measurement mode is non-contact measurement of ultrasonic or radar, namely an ultrasonic or radar sensor is arranged above the water surface, the empty height from the sensor to the water surface is measured, and the water level height is obtained by subtracting the total height from the preset sensor to the bottom of the open channel. This measurement has the following limitations:
firstly, the measurement is misaligned due to the influence of air bubbles on the water surface. The bubbles float on the water surface, and the radar or the ultrasonic wave cannot pass through the water surface bubbles to reach the actual water surface, so that the measured water surface height is higher than the actual height, thereby causing the virtual height of the water level, and the height of the bubbles is regarded as the height of the water level.
And secondly, measurement errors caused by factors such as canal bottom sludge cannot be estimated. The total height from the sensor to the bottom of the canal is measured under the condition of no water in the canal, but is influenced by factors such as water quality, natural environment and the like, the bottom of the open canal has different degrees of sedimentation or sedimentation, so that the actual total height changes, but the preset total height is a fixed value, so that the water level is higher or lower than the actual height under the condition of the same flow, thereby causing larger measurement errors, and the measurement errors are larger and larger along with the running time.
Thirdly, the representative limitation of the measurement points causes measurement bias. The conventional measurement mode is to install only one set of measurement device and only measure the water level at a certain point in the open channel. The open channel flow is affected by factors such as channel width, water flow state, wind speed and direction, flow resistance in water and the like, and the water surface is continuously fluctuated and seriously non-horizontal, so that the water level at a certain point is poor in representativeness, the average water level of the whole open channel flow is difficult to reflect, and larger measurement deviation is caused.
Disclosure of Invention
In view of the above, an embodiment of the present utility model provides a static pressure type open channel dynamic water level measuring device, which is mainly aimed at reducing the measurement error of the dynamic water level.
In order to achieve the above purpose, the present utility model mainly provides the following technical solutions:
the embodiment of the utility model provides a static pressure type open channel dynamic water level measuring device, which comprises:
the support component comprises a telescopic rod assembly and a balance rod assembly, and one end of the telescopic rod assembly is vertically and fixedly connected to the middle part of the balance rod assembly;
the measuring component comprises a measuring rod and a plurality of elastic measuring assemblies, the elastic measuring assemblies comprise elastic connectors and static pressure sensors, the other ends of the telescopic rod assemblies are vertically connected to the middle of the measuring rod, one ends of the elastic connectors are detachably connected to the measuring rod, and the other ends of the elastic connectors are connected to the static pressure sensors;
the display part comprises a connecting wire and a display part, one end of the connecting wire is connected with the display part, and the other end of the connecting wire is connected with each static pressure sensor.
Further, the elastic connector comprises a telescopic shell and a telescopic spring, wherein the telescopic shell is arranged outside the telescopic spring, one end of the telescopic spring is fixedly connected with the telescopic shell, and the other end of the telescopic spring is fixedly connected with the static pressure sensor.
Further, the measuring component further comprises an extension measuring component, the extension measuring component comprises a connecting rod, an installation line and the elastic measuring component, the elastic measuring component is vertically connected to the middle of the connecting rod, and the installation line is respectively connected to the connecting line and the static pressure sensor.
Further, the measuring part further comprises connectors, and the connectors are respectively arranged at two ends of the connecting rod and two ends of the measuring rod.
Further, the elastic connector further comprises a limiting block, and the limiting block is arranged on the inner side of the telescopic shell.
Further, the telescopic rod assembly comprises a first inner tube and a first outer tube, one end of the first inner tube is connected with the balance rod assembly, one end of the first outer tube is connected with the measuring rod, and the first outer tube is sleeved on the outer side of the first inner tube.
Further, the telescopic rod assembly further comprises a clamping component, the clamping component comprises a clamping ring, a plurality of clamping grooves are formed in the surface of the first inner tube, a plurality of clamping through holes are formed in the surface of the first outer tube, the clamping ring is rotatably arranged on the side face of the clamping through holes, and one end of the clamping ring is inserted into one of the clamping through holes and is propped against the bottom of the clamping groove.
Further, the balance bar assembly comprises a balance bar body and a level, wherein the middle part of the balance bar body is fixedly connected with the telescopic bar assembly, the level is arranged on the balance bar body, and the level is positioned on the axis of the telescopic bar assembly.
Further, the balance bar assembly further comprises an extension bar assembly, the extension bar assembly comprises a plurality of extension bars, the side surfaces of the two ends of each extension bar are respectively provided with a first external thread and a first internal thread, the inner sides of the two ends of the balance bar body are provided with a second internal thread, and the first external threads are connected with the second internal threads.
Further, the two adjacent extension rods are a first extension rod and a second extension rod, and the first internal thread of the first extension rod is connected with the first external thread of the second extension rod.
Compared with the prior art, the utility model has the following technical effects:
in the technical scheme provided by the embodiment of the utility model, the supporting component is used for supporting the measuring component and comprises a telescopic rod component and a balance rod component, and one end of the telescopic rod component is vertically and fixedly connected with the middle part of the balance rod component; the measuring component is used for measuring the height of the bottom of the open channel and comprises a measuring rod and a plurality of elastic measuring components, wherein each elastic measuring component comprises an elastic connector and a static pressure sensor, the other end of each elastic connector is vertically connected to the middle part of the measuring rod, one end of each elastic connector is detachably connected to the measuring rod, and the other end of each elastic connector is connected to the static pressure sensor; the effect of display element is the data of real-time demonstration dynamic water level, display element includes connecting wire and display element, the one end of connecting wire is connected in display element, the other end is connected in every static pressure sensor, for prior art, the non-contact measurement of supersound or radar, promptly install supersound or radar sensor above the surface of water, the empty height of measuring sensor to the surface of water, the total height subtraction through preset sensor to open channel bottom obtains the water level, not only the influence of surface of water bubble causes the measurement misalignment, can not also the measuring error that factor such as the silt at the bottom of the evaluation canal caused, simultaneously, still can lead to the representative finite measurement deviation that causes of measuring point, in this technical scheme, through balancing pole and measuring pole mutual level setting, make balancing pole and measuring pole keep the level simultaneously, then adjust the height of static pressure sensor through elastic connector, keep one end time, make the height determination of water level, then the water level height of recording open channel water cross-section different positions, thereby obtain accurate water level data, and then reach the technological effect that improves the accuracy of water level measurement.
Drawings
FIG. 1 is a schematic diagram of a static pressure type open channel dynamic water level measuring device according to an embodiment of the present utility model;
FIG. 2 is an enlarged schematic view of the structure shown at A in FIG. 1;
fig. 3 is a schematic structural diagram of an extension measurement assembly according to an embodiment of the present utility model.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples.
As shown in fig. 1 to 3, an embodiment of the present utility model provides a static pressure type open channel dynamic water level measuring device, which includes:
the support component comprises a telescopic rod assembly 11 and a balance rod assembly 12, and one end of the telescopic rod assembly 11 is vertically and fixedly connected to the middle part of the balance rod assembly 12;
the measuring component comprises a measuring rod 21 and a plurality of elastic measuring assemblies 22, the elastic measuring assemblies 22 comprise elastic connectors 221 and static pressure sensors 222, the other ends of the telescopic rod assemblies 11 are vertically connected to the middle of the measuring rod 21, one ends of the elastic connectors 221 are detachably connected to the measuring rod 21, and the other ends of the elastic connectors are connected to the static pressure sensors 222;
the display part 32, the display part 32 includes a connection line 31 and a display part 32, one end of the connection line 31 is connected to the display part 32, and the other end is connected to each static pressure sensor 222.
In the technical scheme provided by the embodiment of the utility model, the supporting component is used for supporting the measuring component and comprises a telescopic rod component 11 and a balance rod component 12, wherein one end of the telescopic rod component 11 is vertically and fixedly connected with the middle part of the balance rod component 12; the measuring component is used for measuring the height of the bottom of the open channel, and comprises a measuring rod 21 and a plurality of elastic measuring assemblies 22, wherein each elastic measuring assembly 22 comprises an elastic connector 221 and a static pressure sensor 222, the other end of each telescopic rod assembly 11 is vertically connected to the middle part of the measuring rod 21, one end of each elastic connector 221 is detachably connected to the measuring rod 21, and the other end of each elastic connector 221 is connected to the static pressure sensor 222; the function of display element 32 is the data of real-time demonstration dynamic water level, display element 32 includes connecting wire 31 and display element 32, the one end of connecting wire 31 is connected in display element 32, the other end is connected in every static pressure sensor 222, for prior art, the non-contact measurement of supersound or radar, namely install supersound or radar sensor above the surface of water, the empty height of measuring sensor to the surface of water, the total height subtraction through preset sensor to open channel bottom obtains the water level, not only the influence of surface of water bubble causes the measurement misalignment, still can not evaluate the measuring error that factors such as canal bottom silt caused, simultaneously, can also lead to the representative finite measurement deviation that causes of measuring point, in this technical scheme, through balancing pole and measuring pole 21 mutual level setting, make balancing pole and measuring pole 21 keep the level simultaneously, then through elastic connector 221 adjustment static pressure sensor 222's height, one end time of standing, make the height determination of water level, then the water level height of the different positions of open channel rivers section is recorded, thereby obtain accurate data, and further reach the technological effect that improves the water level measurement.
The function of the above-mentioned supporting part is to support the measuring part, the supporting part includes telescopic link assembly 11 and balance link assembly 12, one end of the telescopic link assembly 11 is fixedly connected to the middle part of the balance link assembly 12 vertically, the function of the balance link assembly 12 is to keep the apparatus in the horizontal state, optionally, the balance link assembly 12 includes balance link body 121 and level gauge 122, the middle part of the balance link body 121 is fixedly connected to the telescopic link assembly 11, the level gauge 122 is set up on the balance link body 121, and the level gauge 122 is located on the axis of the telescopic link assembly 11, make personnel observe the state of the balance link body 121 at any time, optionally, set up the reflector above the level gauge 122, the reflector is set up in 45 degrees of slope, make things convenient for personnel to observe the horizontal state of the level gauge 122 in both sides, the telescopic link assembly 11 is connected to the middle part of the balance link assembly 12 vertically, and the telescopic link assembly 11 is located in the lower part of the level gauge 122; the measuring component is used for measuring the height of the bottom of the open channel, the measuring component comprises a measuring rod 21 and a plurality of elastic measuring assemblies 22, each elastic measuring assembly 22 comprises an elastic connector 221 and a static pressure sensor 222, the other end of each telescopic rod assembly 11 is vertically connected to the middle of the measuring rod 21, one end of each elastic connector 221 is detachably connected to the corresponding measuring rod 21, the other end of each telescopic rod assembly 11 is connected to the corresponding static pressure sensor 222, the other end of each telescopic rod assembly 11 is vertically connected to the middle of the corresponding measuring rod 21, the measuring rod 21 and the corresponding balance rod assembly 12 are kept in relative parallel arrangement, one end of each elastic connector 221 is installed at the bottom of the corresponding measuring rod 21, and the other end of each elastic connector 221 is connected to the corresponding static pressure sensor 222, so that the corresponding static pressure sensor 222 can move up and down under the action of the corresponding elastic connector 221; the function of display element 32 is the data of real-time demonstration dynamic water level, display element 32 includes connecting wire 31 and display element 32, the one end of connecting wire 31 is connected in display element 32, the other end is connected in every static pressure sensor 222, display element 32 adopts lithium cell power supply, thereby improve the suitability of equipment, when using, firstly put into the open channel with equipment, make balancing pole body 121 keep the level, make telescopic link subassembly 11 perpendicular to open channel bottom, then the balancing pole subassembly 12 is pressed down, make static pressure sensor 222 and open channel bottom in close contact as far as, simultaneously, still keep balancing pole subassembly 12 in the horizontality, observe the water level data that shows on the display element 32, when water level data does not change, it is in the open channel bottom to state static pressure sensor 222, then stew for a period of time, record the water level height of open channel rivers cross-section different positions obtains accurate water level data, thereby reach the accuracy that improves the detection and reduce the technological effect of water level measurement error, and, every static pressure sensor 222 is independent relatively, can directly make up for the direct and close contact with the open channel bottom, thereby the water level error causes the water level error to be in a horizontal state, when the static pressure sensor 222 can also be changed conveniently when the fault occurs.
Further, the elastic connector 221 includes a telescopic housing 2211 and a telescopic spring 2212, the telescopic housing 2211 is disposed outside the telescopic spring 2212, one end of the telescopic spring 2212 is fixedly connected to the telescopic housing 2211, and the other end is fixedly connected to the static pressure sensor 222. In this embodiment, the elastic connector 221 is further defined, the one end of the telescopic housing 2211 is provided with a buckle, and can be clamped on the measuring rod 21, the telescopic spring 2212 is arranged inside the telescopic housing 2211, one end of the telescopic spring 2212 is fixedly connected to the telescopic housing 2211, and the other end of the telescopic spring 2212 is fixedly connected to the static pressure sensor 222, so that the static pressure sensor 222 can move up and down in the telescopic housing 2211, and the technical effect that the static pressure sensor 222 is close to the bottom of the open channel is achieved.
Further, the measuring component further comprises an extension measuring assembly 23, the extension measuring assembly 23 comprises a connecting rod 231, a mounting line 232 and an elastic measuring assembly 22, the elastic measuring assembly 22 is vertically connected to the middle of the connecting rod 231, and the mounting line 232 is respectively connected to the connecting line 31 and the static pressure sensor 222. In this embodiment, the measuring component is further defined, the function of the extension measuring component 23 is to extend the length of the measuring component, so that the measuring component can be extended, thereby improving the applicability of the open channel, the extension measuring component 23 is multiple, each extension measuring component 23 is composed of a connecting rod 231, a mounting line 232 and an elastic measuring component 22, one end of the connecting rod 231 is connected to the end of the measuring rod 21 or another connecting rod 231, one end of the mounting line 232 is connected to the connecting line 31, the other end is connected to the static pressure sensor 222, the elastic measuring component 22 is installed in the middle of the connecting rod 231, and the multiple extension measuring components 23 are sequentially connected, so that the length of the measuring rod 21 is extended and prolonged, thereby improving the applicability of the device, and optionally, the measuring component further comprises connectors 24, the connectors 24 are respectively arranged at two ends of the connecting rod 231 and the measuring rod 21, the connectors 24 are existing aviation plugs, the connectors 24 are arranged at two ends of the connecting rod 231, and the connectors 24 are also arranged at two ends of the measuring rod 21, so that the connecting rod 231 can be in sealing connection with each other, and can also be directly connected with the measuring rod 21 in a sealing manner, thereby improving the connectivity of the connectors 24 and the sealing performance of the measuring device can be improved, and the water level sensor can be configured to realize the accuracy, and the accuracy of the measurement of the water level measurement can be improved.
Further, the telescopic rod assembly 11 includes a first inner tube 111 and a first outer tube 112, one end of the first inner tube 111 is connected to the balance rod assembly 12, one end of the first outer tube 112 is connected to the measuring rod 21, and the first outer tube 112 is sleeved outside the first inner tube 111. In this embodiment, the telescopic rod assembly 11 is further defined, the first outer tube 112 is sleeved outside the first inner tube 111, the diameter of the first inner tube 111 is slightly smaller than that of the first outer tube 112, so that the first inner tube 111 can move inside the first outer tube 112, one end of the first inner tube 111 is fixedly connected to the balance rod assembly 12, one end of the first outer tube 112 is fixedly connected to the measuring rod 21, the length of the telescopic rod assembly 11 can be adjusted by moving the first inner tube 111 up and down, and therefore the technical effect of adjusting the distance between the measuring rod 21 and the balance rod assembly 12 is achieved, optionally, the telescopic rod assembly 11 further comprises a clamping part, the clamping part comprises a plurality of clamping rings 113, the surface of the first inner tube 111 is provided with a plurality of clamping grooves 1111, the surface of the first outer tube 112 is provided with a plurality of clamping holes 1121, the clamping rings 113 are rotatably arranged on the side face of the clamping holes 1121, one end of the clamping rings 113 is inserted into the clamping holes 1121 and is propped against the bottom of the clamping grooves 1111, the clamping rings 113 can enable the length of the first inner tube 111 and the first inner tube 112 to be adjusted, and the relative positions of the first inner tube 112 can be adjusted, and the first outer tube 112 can be further arranged at the positions of the first inner tube 111 and the first outer tube 112, the first outer tube can be sequentially, the first outer tube can be further arranged at the positions of the first inner tube 111, the first outer tube can be sequentially, the first outer tube can be further screwed with the first outer tube 112, the first outer tube 112 can be further has a threaded tube and the first outer tube 112, the inner tube 112 can be further has a screw structure, the structure can be fixed, the device can be further has the structure can be provided.
Further, the balance bar assembly 12 further includes an extension bar assembly including a plurality of extension bars 123, wherein two end sides of each extension bar 123 are respectively provided with a first external thread and a first internal thread, two end inner sides of the balance bar body 121 are provided with a second internal thread, and the first external thread is connected to the second internal thread. In this embodiment, the balance bar assembly 12 is further defined, the function of the extension bar 123 assembly is to extend the balance bar body 121, two ends of the balance bar body 121 are provided with second internal threads, one end of each extension bar 123 is provided with first external threads, the other end of each extension bar 123 is provided with first internal threads, the first external threads are connected with the second internal threads, the length of the balance bar body 121 is extended, specifically, two adjacent extension bars 123 are a first extension bar and a second extension bar, the first internal threads of the first extension bar are connected with the first external threads of the second extension bar, and the balance bar body 121 can be conveniently fixed and operated by personnel, and meanwhile, the balance of the balance bar body 121 can also be improved.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (10)
1. A static pressure open channel dynamic water level measuring device, comprising:
the support component comprises a telescopic rod assembly and a balance rod assembly, and one end of the telescopic rod assembly is vertically and fixedly connected to the middle part of the balance rod assembly;
the measuring component comprises a measuring rod and a plurality of elastic measuring assemblies, the elastic measuring assemblies comprise elastic connectors and static pressure sensors, the other ends of the telescopic rod assemblies are vertically connected to the middle of the measuring rod, one ends of the elastic connectors are detachably connected to the measuring rod, and the other ends of the elastic connectors are connected to the static pressure sensors;
the display part comprises a connecting wire and a display part, one end of the connecting wire is connected with the display part, and the other end of the connecting wire is connected with each static pressure sensor.
2. The static pressure type open channel dynamic water level measuring device according to claim 1, wherein,
the elastic connector comprises a telescopic shell and a telescopic spring, wherein the telescopic shell is arranged outside the telescopic spring, one end of the telescopic spring is fixedly connected with the telescopic shell, and the other end of the telescopic spring is fixedly connected with the static pressure sensor.
3. A static pressure type open channel dynamic water level measuring device as set forth in claim 2, wherein,
the measuring component further comprises an extension measuring component, the extension measuring component comprises a connecting rod, an installation line and an elastic measuring component, the elastic measuring component is perpendicularly connected to the middle of the connecting rod, and the installation line is respectively connected to the connecting line and the static pressure sensor.
4. A static pressure type open channel dynamic water level measuring device as set forth in claim 3, wherein,
the measuring part further comprises connectors, and the connectors are respectively arranged at two ends of the connecting rod and two ends of the measuring rod.
5. A static pressure type open channel dynamic water level measuring device as set forth in claim 3, wherein,
the elastic connector further comprises a limiting block, and the limiting block is arranged on the inner side of the telescopic shell.
6. A static pressure open channel dynamic water level measuring device as set forth in any one of claims 1 to 5, wherein,
the telescopic rod assembly comprises a first inner tube and a first outer tube, one end of the first inner tube is connected with the balance rod assembly, one end of the first outer tube is connected with the measuring rod, and the first outer tube is sleeved on the outer side of the first inner tube.
7. The static pressure type open channel dynamic water level measuring device as set forth in claim 6, wherein,
the telescopic rod assembly further comprises a clamping component, the clamping component comprises a clamping ring, a plurality of clamping grooves are formed in the surface of the first inner tube, a plurality of clamping through holes are formed in the surface of the first outer tube, the clamping ring is rotatably arranged on the side face of the clamping through holes, and one end of the clamping ring is inserted into one of the clamping through holes and is propped against the bottom of the clamping groove.
8. A static pressure open channel dynamic water level measuring device as set forth in any one of claims 1 to 5, wherein,
the balance bar assembly comprises a balance bar body and a level meter, wherein the middle part of the balance bar body is fixedly connected with the telescopic bar assembly, the level meter is arranged on the balance bar body, and the level meter is positioned on the axis of the telescopic bar assembly.
9. The static pressure type open channel dynamic water level measuring device as set forth in claim 8, wherein,
the balance rod assembly further comprises an extension rod assembly, the extension rod assembly comprises a plurality of extension rods, first external threads and first internal threads are respectively arranged on the side surfaces of two ends of each extension rod, second internal threads are arranged on the inner sides of two ends of the balance rod body, and the first external threads are connected with the second internal threads.
10. The static pressure type open channel dynamic water level measuring device as set forth in claim 9, wherein,
the two adjacent extension rods are a first extension rod and a second extension rod, and the first internal thread of the first extension rod is connected with the first external thread of the second extension rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322352846.9U CN220602644U (en) | 2023-08-31 | 2023-08-31 | Static pressure type open channel dynamic water level measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322352846.9U CN220602644U (en) | 2023-08-31 | 2023-08-31 | Static pressure type open channel dynamic water level measuring device |
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| Publication Number | Publication Date |
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| CN220602644U true CN220602644U (en) | 2024-03-15 |
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|---|---|---|---|
| CN202322352846.9U Active CN220602644U (en) | 2023-08-31 | 2023-08-31 | Static pressure type open channel dynamic water level measuring device |
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| Country | Link |
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| CN (1) | CN220602644U (en) |
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2023
- 2023-08-31 CN CN202322352846.9U patent/CN220602644U/en active Active
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