CN211696616U - Automatic change water gauge and detect stage body - Google Patents
Automatic change water gauge and detect stage body Download PDFInfo
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- CN211696616U CN211696616U CN201922429450.3U CN201922429450U CN211696616U CN 211696616 U CN211696616 U CN 211696616U CN 201922429450 U CN201922429450 U CN 201922429450U CN 211696616 U CN211696616 U CN 211696616U
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Abstract
The utility model relates to an automatic change water gauge and detect stage body, including detecting platform, detecting instrument fixed station, water gauge location platform, conveyer belt, pneumatic clamping jaw, triaxial arm, detecting instrument fixed station, water gauge location platform, the mutual parallel arrangement of conveyer belt, evenly install many test cloud platforms on the instrument detection fixed station, install detecting instrument on the test cloud platform, evenly be equipped with the multistage water pipe on the water gauge location platform, for testing the position between two sections adjacent water pipes, the tip of test position department water pipe is equipped with and steps up the device, and the water gauge assembly that awaits measuring is in the position of awaiting measuring, install pneumatic clamping jaw on the triaxial arm. The detection instrument fixing table, the detection cloud platform and the detection instrument can be automatically positioned and monitored, water meters can be automatically installed and disassembled, and the installation and fixation of the calibers of the water meters of different models can be realized; according to the requirement of the detection amount, the device is flexibly arranged, and the working efficiency can be effectively improved by more than 50%.
Description
Technical Field
The utility model relates to a full-automatic examination technical field of water gauge, concretely relates to automatic change water gauge and detect stage body.
Background
The water meter is widely used in the industries of tap water, heating power, chemical industry and the like, and enterprises or metering departments producing the water meter need to carry out performance verification on indicating value errors of the water meters according to regulations formulated by relevant departments. In the field of full-automatic verification of domestic water meters at present, a weighing method or a volumetric method is usually adopted to obtain the volume of water flow, pointer data of a water meter to be detected are compared, the precision of the water meter is verified, the weighing method is to obtain the volume by weighing the mass of water flowing through an electronic scale and dividing the water flowing through the water density, the existing verification system cannot completely realize automatic verification, the existing verification system needs to be manually installed on a water pipe for detection, verification equipment is connected in series, after the existing verification system needs to be installed, the equipment is started for verification, and after the verification is finished, the verification system is detached one by one, qualified or unqualified products are distinguished and are transported out through a; in addition, in the application of the manipulator, the requirement of accurate position on the positioning of the water meter is required, so that the size between the water meter clamps is limited, the equipment cannot detect the water meters of different models, the water meter clamps of the whole set of equipment need to be replaced, the time is long, and the tooling cost is high; a single set of control system is generally adopted to control one set of verification system, and the efficiency of operating a single device by a single worker is reduced.
Disclosure of Invention
For overcoming not enough, an object of the utility model is to provide an automatic change water gauge and detect stage body.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an automatic change water gauge detection platform body, is including examining test table, detecting instrument fixed station, water gauge locating station, conveyer belt, pneumatic clamping jaw, triaxial arm, detecting instrument fixed station, water gauge locating station, the mutual parallel arrangement of conveyer belt, evenly install many test cloud platforms on the detecting instrument fixed station, install detecting instrument on the test cloud platform, evenly be equipped with the multistage water pipe on the water gauge locating station, for testing the position between two sections adjacent water pipes, the tip of test position department water pipe is equipped with clamping device, and the water gauge assembly that awaits measuring is in the position of awaiting measuring, and the end that intakes and the play water end of the water gauge that awaits measuring are connected with the end of water pipe through clamping device, install pneumatic clamping jaw on the triaxial arm for get and put the water gauge.
Specifically, the water pipes at the two ends are respectively communicated with a connecting port of the test pipeline, a water inlet of the test pipeline is communicated with the water tank, and a water outlet of the test pipeline is communicated with the weighing device.
Specifically, the conveyer belt includes the article conveyer belt that awaits measuring, has surveyed the article conveyer belt, install water gauge location frock on the article conveyer belt that awaits measuring, water gauge location frock is established to U type structure, and the opening direction is towards the article conveyer belt supplied materials direction that awaits measuring, and proximity sensor is installed to water gauge location frock inboard, and the constant head tank has been seted up to both sides in the water gauge location frock, is equipped with the location cylinder in the constant head tank.
Specifically, instrument fixed station actuating mechanism is installed respectively at the both ends of detecting instrument fixed station, and actuating mechanism includes instrument guide rail, first sharp electric jar, and the tip of detecting instrument fixed station is equipped with first link, is fixed with first slider on the first link, and first slider assembly is on instrument guide rail, and first link is in the same place with the push rod end connection of first sharp electric jar, and first straight line electric jar is fixed on first assembly plate through first base, and first assembly plate fixed mounting is on the detection platform shell that corresponds.
The testing platform comprises a left adjusting guide rail, a right adjusting guide rail and a front adjusting guide rail, wherein the upper part of the left adjusting guide rail and the upper part of the right adjusting guide rail are fixedly connected with the testing instrument through a second connecting frame;
the left and right adjusting guide rails are driven by a first direct current motor, the front and rear adjusting guide rails are driven by a second direct current motor, first locking bolts are arranged on the left and right guide blocks, and second locking bolts are arranged on the front and rear guide blocks.
Specifically, detect the platform and be located the both ends of water gauge locating stand.
Specifically, triaxial arm includes X axle module, Y axle module, Z axle module, X axle module, Y axle module all adopt linear guide, and Y axle module parallels with the water gauge location platform, and X axle module is mutually perpendicular with the water gauge location platform, is equipped with the slide on the X axle module, and the slide assembly is on Y axle module, the one end fixed connection Z axle module of X axle module, and the lower extreme of Z axle module is connected with pneumatic clamping jaw for remove pneumatic clamping jaw 7 in X axle, Y axle, Z axle direction, triaxial arm passes through triaxial arm switch board control.
Specifically, clamping device includes water gauge clamp plate, centering anchor clamps, compresses tightly the cylinder, the water gauge clamp plate cup joints the tip at the water pipe, and the one end that compresses tightly the cylinder is fixed in the water pipe outside through a cylinder fixed plate, and the other end that compresses tightly the cylinder passes through another cylinder fixed plate and water gauge clamp plate fixed connection, the water gauge clamp plate inboard is through sealed the joint sealing connection who fills up with the water gauge that awaits measuring, centering anchor clamps are installed to the outward flange of water gauge clamp plate.
Specifically, the middle of the centering clamp is provided with a mounting and fixing hole, and the outer edge of the centering clamp is designed to be of a three-section arc length special-shaped structure with different sizes
Specifically, the tested product conveyer belt is divided into an unqualified product conveyer belt and a qualified product conveyer belt according to the detection condition.
Specifically, one set of triaxial arm, pneumatic clamping jaw correspond two sets of detecting instrument fixed stations, water gauge locating platform, conveyer belt.
The utility model discloses following beneficial effect has: the utility model discloses a detection instrument fixed station, detection cloud platform, detection instrument can automatic positioning, monitor; the three-axis mechanical arm and the pneumatic clamping jaw can automatically install and dismantle the water meter; the clamping device can automatically clamp the water meter, saves the number of the replacing clamps in the process of replacing different products, improves the applicability of the water meter clamps in various types, firstly selects a proper stroke pressing cylinder, meets the requirements of maximum and minimum strokes, and can realize pressing of three types of meters, and only needs to change the installation angle of the centering clamp to realize the installation and fixation of the calibers of the water meters in different types when the products are replaced through the centering clamp; according to the requirement of the detection amount, the three-axis mechanical arm, the pneumatic clamping jaw and the detection table can be flexibly arranged, correspond to the two detection instrument fixing tables, the water meter positioning table and the conveying belt, and can effectively improve the working efficiency by more than 50%.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a side view of the present invention.
FIG. 4 is the schematic structural diagram of the fixing frame of the testing instrument of the present invention
Fig. 5 is the utility model discloses a test cloud platform sketch map.
Fig. 6 is a front view of the testing platform of the present invention.
Fig. 7 is a side view of the testing platform of the present invention.
Fig. 8 is a schematic view of the structure of the three-axis mechanical arm of the present invention.
Fig. 9 is the utility model discloses a water gauge location frock's schematic structure view.
Fig. 10 is a side sectional view of the positioning tool of the present invention.
Fig. 11 is a transverse sectional view of the positioning tool of the present invention.
Fig. 12 shows the automatic positioning and clamping device of the present invention.
Fig. 13 is a schematic structural view of the centering fixture of the present invention.
Fig. 14 is the structure diagram of the centering fixture of the present invention corresponding to different models of water meters.
Fig. 15 is a top view of another embodiment of the present invention.
In the figure, 1 detection table, 2 water meter positioning table, 201 water pipe, 3 detection instrument fixing table, 301 detection instrument, 302 detection pan tilt, 3021 left and right adjusting guide rail, 3022 left and right guide block, 3023 front and back adjusting guide rail, 3024 front and back guide block, 3025 first locking bolt, 3026 second tightening bolt, 3027 pan tilt bracket, 3028 first dc motor, 3029 second dc motor, 303 first connecting rack, 304 first slide block, 4 clamping device, 401 water meter press plate, 402 gasket, 403 cylinder fixing plate, 404 pressing cylinder, 405 centering fixture, 5 instrument fixing table driving mechanism, 501 instrument guide rail, 502 first linear electric cylinder, 503 first base, 504 fixing on first assembling plate, 6 three-axis mechanical arm, 601X-axis module, 6011X-axis motor, 6012 slide, 602Y-axis module, 603Z-axis module, 6031Z-axis motor, 7 pneumatic clamping jaw, 8 water meter positioning tool, the system comprises a 801 proximity sensor, an 802 positioning cylinder, a 9 conveying belt, a 901 conveying belt for a product to be tested, a 902 conveying belt for a tested product, a 902A conveying belt for an unqualified product, a 902B conveying belt for a qualified product, a 10 three-axis mechanical arm control cabinet, an 11 water meter to be tested, a 12 water tank and a 13 testing pipeline.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings.
Example 1
An automatic water meter detection platform body as shown in fig. 1 to 12 comprises a detection platform 1, a detection instrument fixing platform 3, a water meter positioning platform 2, a conveying belt 9, a pneumatic clamping jaw 7 and a three-axis mechanical arm 6, wherein the detection instrument fixing platform 3, the water meter positioning platform 2 and the conveying belt 9 are arranged in parallel, a plurality of test cloud platforms 302 are uniformly arranged on the detection instrument fixing platform 3, a detection instrument 301 is arranged on the test cloud platform 302, a plurality of sections of water pipes 201 are uniformly arranged on the water meter positioning platform 2, a test position is arranged between two adjacent water pipes 201, a clamping device 4 is arranged at the end part of the water pipe 201 at the test position, a water meter assembly 11 to be tested is assembled at the position to be tested, the water inlet end and the water outlet end of the water meter 11 to be tested are connected with the end of the water pipe 201 through the clamping device 4, and the pneumatic clamping jaw.
Specifically, the water pipes 201 at the two ends are respectively communicated with the connection ports of the test pipes 13, the water inlets of the test pipes 13 are communicated with the water tank 12, the water outlets of the test pipes 13 are communicated with the weighing device, and the output port pneumatic valve 101 is installed at the water inlets of the test pipes 13 to form a test passage, which is not described again for the prior art.
Specifically, the conveyor belt 9 comprises a conveyor belt 901 for the to-be-measured product and a conveyor belt 902 for the to-be-measured product, a water meter positioning tool 8 is mounted on the conveyor belt 901 for the to-be-measured product, the water meter positioning tool 8 is of a U-shaped structure, the opening direction of the U-shaped structure faces the material feeding direction of the conveyor belt 901 for the to-be-measured product, an approach sensor 801 is mounted on the inner side of the water meter positioning tool 8, positioning grooves are formed in two sides of the water meter positioning tool 8, positioning cylinders 802 are mounted in the positioning grooves, the position is limited by means of a dead stop on the back of the water meter positioning tool 8 after the position is reached, the three-axis mechanical arm 6 drives a pneumatic clamping jaw 7 to take out the part, the approach sensor 801 triggers the conveyor belt 901 for the to-be-measured product to stop when the water meter reaches, and the driving belt continuously conveys the water meter to be measured.
Specifically, instrument fixed table actuating mechanism 5 is installed respectively to the both ends of detecting instrument fixed table 3, actuating mechanism 5 includes instrument guide rail 501, first straight line cylinder 502, the tip of detecting instrument fixed table 3 is equipped with first link 303, be fixed with first slider 304 on the first link 303, first slider 304 assembles on instrument guide rail 501, first link 303 is in the same place with the push rod end connection of first straight line cylinder 502, first straight line cylinder 502 is fixed on first assembly plate 504 through first base 503, first assembly plate 504 fixed mounting is on the corresponding detecting platform 1 shell, detecting instrument 301 can adopt high-speed camera, carry out the water gauge and detect.
Specifically, the test head 302 includes a left-right adjustment guide rail 3021 and a front-rear adjustment guide rail 3023, the upper portion of the left-right adjustment guide rail 3021 is fixedly connected with the detection instrument 301 through a second connecting frame 3011, the left-right adjustment guide rail 3021 is assembled in a left-right guide block 3022, the left-right guide block 3021 is fixed on the front-rear guide rail 3023, the front-rear guide rail 3023 is assembled in a front-rear guide block 3024, and the front-rear guide block 3023 is assembled on the test instrument fixing stand through a head support 3027;
the left-right adjusting guide rail 3021 is driven by a first direct current motor 3028, the front-back adjusting guide rail 3023 is driven by a second direct current motor 3029, a left guide block 3022 and a right guide block 3022 are provided with first locking bolts 3025, the first locking bolts 3025 penetrate through the wall of the left guide block 3022 and the side surface of the left-right adjusting guide rail 3021 and are in contact with the side surface of the left-right adjusting guide rail 3021 and are perpendicular to the left-right adjusting guide rail 3021, the front-back guide block 3024 is provided with second locking bolts 3026, the second locking bolts 3026 penetrate through the wall of the front-back guide block 3024 and are in contact with the side surface of the front-back adjusting guide rail 3023 and are perpendicular to the front-back adjusting guide rail 3023, the left-right adjusting guide rail 3021 and the front-back adjusting guide rail 3023.
Specifically, the detection table 1 is located at two ends of the water meter positioning table 2.
Specifically, the three-axis mechanical arm 6 comprises an X-axis module 601, a Y-axis module 602 and a Z-axis module 603, the X-axis module 601 and the Y-axis module 602 both adopt linear guide rails, the Y-axis module 602 is parallel to the water meter positioning table 2, the X-axis module 602 is perpendicular to the water meter positioning table 2, the X-axis module 602 is provided with a slide seat 6012, the slide seat 6012 is arranged on the Y-axis module 602, when the Y-axis module is fixedly arranged on the ground, the lower slide seat 6012 can slide on the X-axis module 602 under the drive of the X-axis motor 6011, or can drive the X-axis module 601 to move along the Y-axis under the drive of the Y-axis motor, one end of the X-axis module 601 is fixedly connected to the Z-axis module 603, the Z-axis module 603 adopts a second linear electric cylinder, the lower end of the second linear electric cylinder is connected to the pneumatic clamping jaw 7, the pneumatic clamping jaw is used for moving the pneumatic clamping jaw 7 in the X-axis direction, the Y-axis direction and the Z-axis direction, and the three-axis mechanical arm 6 is controlled by a three-axis mechanical arm 6 control cabinet.
Specifically, clamping device 4 includes water gauge clamp plate 401, centering anchor clamps 406, compresses tightly cylinder 407, water gauge clamp plate 401 cup joints the tip at water pipe 201, and the one end that compresses tightly cylinder 407 is fixed in the water pipe 201 outside through a cylinder fixed plate 403, and the other end that compresses tightly cylinder 407 passes through another cylinder fixed plate 403 and water gauge clamp plate 401 fixed connection, water gauge clamp plate 401 is inboard through sealed the joint sealing connection of filling up 402 with the water gauge 11 that awaits measuring, centering anchor clamps 406 are installed to water gauge clamp plate 401's outward flange.
Specifically, the middle of the centering clamp 406 is provided with an installation fixing hole 4061, the outer edge of the centering clamp 406 is designed into three sections of arc length special-shaped structures with different sizes, the radius of the arc length special-shaped structures is three sections of centering arc surfaces of R6.88mm, R14.73mm and R11.225mm, different arc lengths are adopted when products with different diameters are centered, the centering clamp 406 simplifies the mechanical assembly process, the same equipment or clamp is used for replacing different products, the number of replacing clamps is reduced, the applicability of multiple models of water meter clamps is improved, the lengths and diameters of water meters of different models are different, firstly, a proper stroke pressing cylinder is selected, the pressing of the meters with three different models can be realized by meeting the maximum and minimum strokes, and the calibers of the water meters with different models can be installed and fixed by only changing the installation angle of the centering clamp when the products are replaced.
Example 2
As shown in fig. 13, in the top view of the automatic water meter detecting platform, the detected product conveyer belt 902 is divided into an unqualified product conveyer belt 902A and a qualified product conveyer belt 902B, and the detected products are respectively conveyed according to the detection condition without post-sorting.
Example 3
An automatic water meter detection table body is characterized in that a set of three-axis mechanical arm 6, a pneumatic clamping jaw 7 and a detection table 1 correspond to two sets of detection instrument fixing tables 3, a water meter positioning table 2 and a conveying belt 9, workers operate and operate an upper computer, a first row of verification devices are selected, a water meter to be detected is installed, water leakage detection is completed after a meter number is input, and if no problem exists, an automatic detection process is started by the current table body; in the process of waiting for the detection of the first row of calibrating devices, workers start the water meter installation and meter number input work of the second row of platforms and finish the work of water leakage detection and the like; after the first row detection is finished, immediately using an upper computer to control the second row detection; in the second row of detection process, the unloading of the first row of detection devices and the next batch of water meter installation work are completed, the operation is circulated in sequence, and the working efficiency can be effectively improved by more than 50%.
The automatic execution logic is as follows:
1. starting a system;
2. the water meter platform is in a self-checking state, a high-speed camera is adopted as a detection instrument, a switch triggers the camera to be in a position B, namely the position of a non-detection instrument and a standby position, a pneumatic meter clamping clamp is opened, and a clamping device 4 is opened;
3. the detection table 1 outputs instructions to the three-axis mechanical arm 6 and the pneumatic clamping jaw 7 to start execution, the water meter is installed to act, the pneumatic meter clamping clamp is executed to close, the clamping device 4 is closed to clamp the water meter to be detected, the three-axis mechanical arm 6 returns to the original position after installation is completed, and the three-axis mechanical arm 6 sends signals to the detection table to execute the next step;
4. starting a direct current motor of the first linear electric cylinder 502, moving the camera to the position A, namely above the water meter to be detected, triggering a switch and then entering the next step;
5. closing an output port pneumatic valve 101 of the detection table 1, executing a pressurizing test, stopping the test if water leakage occurs in the test, moving a camera to a position B, executing opening of a pneumatic clamp meter clamp by a clamp pneumatic valve, opening a clamping device 4, sending signals to a triaxial mechanical arm 6 and a pneumatic clamping jaw 7 to unqualified positions, replacing a water meter to be detected, and repeatedly executing 4 actions after the replacement is completed;
6. after the pressing test is finished, the meter running test is executed, the pneumatic valve 101 at the output port is opened, and the meter is normally run;
7. and (3) completing the running meter test, starting a direct current motor of the first linear electric cylinder 502, moving the camera to the position B, opening the clamp pneumatic valve, opening the clamping device 4, sending instructions to the triaxial mechanical arm 6 and the pneumatic clamping jaw 7 to execute, and disassembling and assembling the water meter, and finishing one cycle.
The utility model discloses not be limited to the embodiment, anybody should learn the structural change who makes under the teaching of the utility model, all with the utility model discloses have the same or close technical scheme, all fall into the utility model discloses an within the protection scope.
The technology, shape and construction parts which are not described in detail in the present invention are all known technology.
Claims (10)
1. The utility model provides an automatic change water gauge and detect stage body, is including detecting the platform, its characterized in that: still include detecting instrument fixed station, water gauge fixed station, conveyer belt, pneumatic clamping jaw, triaxial arm, detecting instrument fixed station, water gauge fixed station, the mutual parallel arrangement of conveyer belt, evenly install many test cloud platforms on the detecting instrument fixed station, install detecting instrument on the test cloud platform, evenly be equipped with the multistage water pipe on the water gauge fixed station, be the test position between two sections adjacent water pipes, the tip of test position department water pipe is equipped with clamping device, and the water gauge assembly that awaits measuring is in the position that awaits measuring, and the end that the end of intaking and the play water end of the water gauge that awaits measuring are connected with the water pipe through clamping device, install pneumatic clamping jaw on the triaxial arm for get and put the water gauge.
2. The automatic water meter detection table body according to claim 1, wherein: the conveyer belt comprises a conveyer belt for the articles to be detected and a conveyer belt for the articles to be detected.
3. The automatic water meter detection table body as claimed in claim 2, wherein: install water gauge location frock on the article conveyer belt that awaits measuring, water gauge location frock is established to U type structure, and the opening direction is towards the article conveyer belt supplied materials direction that awaits measuring, and proximity sensor is installed to water gauge location frock inboard, and the constant head tank has been seted up to both sides in the water gauge location frock, is equipped with the location cylinder in the constant head tank.
4. The automatic water meter detection table body according to claim 1, wherein: instrument fixed station actuating mechanism is installed respectively to the both ends of detecting instrument fixed station, actuating mechanism includes instrument guide rail, first sharp electric jar, the tip of detecting instrument fixed station is equipped with first link, be fixed with first slider on the first link, first slider assembly is on instrument guide rail, first link is in the same place with the push rod end connection of first sharp electric jar, first straight line electric jar is fixed on first assembly plate through first base, first assembly plate fixed mounting is on the detection platform shell that corresponds.
5. The automatic water meter detection table body according to claim 1, wherein: the test cloud platform is including controlling regulation guide rail, front and back regulation guide rail, control the top of adjusting the guide rail and pass through second link and detecting instrument fixed connection, control the assembly of guide rail in the guide block about, the guide block is fixed on front and back guide rail, front and back guide rail assembly in front and back guide block, front and back guide block passes through the assembly of cloud platform support on the detecting instrument fixed station.
6. The automatic water meter detection table body according to claim 1, wherein: the detection tables are located at two ends of the water meter positioning table.
7. The automatic water meter detection table body according to claim 1, wherein: the triaxial arm includes X axle module, Y axle module, Z axle module, X axle module, Y axle module all adopt linear guide, and Y axle module parallels with the water gauge location platform, and the X axle module is mutually perpendicular with the water gauge location platform, is equipped with the slide on the X axle module, and the slide assembly is on Y axle module, and the one end fixed connection Z axle module of X axle module, the lower extreme of Z axle module are connected with pneumatic clamping jaw.
8. The automatic water meter detection table body according to claim 1, wherein: one set of triaxial arm, pneumatic clamping jaw correspond two sets of detecting instrument fixed stations, water gauge locating platform, conveyer belt.
9. The automatic water meter detection table body according to claim 1, wherein: clamping device includes water gauge clamp plate, centering anchor clamps, compresses tightly the cylinder, the water gauge clamp plate cup joints the tip at the water pipe, and the one end that compresses tightly the cylinder is fixed in the water pipe outside through a cylinder fixed plate, and the other end that compresses tightly the cylinder passes through another cylinder fixed plate and water gauge clamp plate fixed connection, the water gauge clamp plate inboard is through sealed the joint sealing connection who fills up with the water gauge that awaits measuring, centering anchor clamps are installed to the outward flange of water gauge clamp plate.
10. The automatic water meter detection table body as claimed in claim 9, wherein: the middle of the centering clamp is provided with a mounting and fixing hole, and the outer edge of the centering clamp is designed into three arc length special-shaped structures with different sizes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922429450.3U CN211696616U (en) | 2019-12-30 | 2019-12-30 | Automatic change water gauge and detect stage body |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922429450.3U CN211696616U (en) | 2019-12-30 | 2019-12-30 | Automatic change water gauge and detect stage body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118190097A (en) * | 2024-01-05 | 2024-06-14 | 宁夏水投清水河城乡供水有限公司 | Intelligent water meter capable of monitoring dripping flow |
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2019
- 2019-12-30 CN CN201922429450.3U patent/CN211696616U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118190097A (en) * | 2024-01-05 | 2024-06-14 | 宁夏水投清水河城乡供水有限公司 | Intelligent water meter capable of monitoring dripping flow |
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