CN211553014U - Ultrasonic water meter calibration table - Google Patents
Ultrasonic water meter calibration table Download PDFInfo
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- CN211553014U CN211553014U CN202020336346.XU CN202020336346U CN211553014U CN 211553014 U CN211553014 U CN 211553014U CN 202020336346 U CN202020336346 U CN 202020336346U CN 211553014 U CN211553014 U CN 211553014U
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Abstract
The utility model relates to a water gauge test technical field specifically discloses an ultrasonic water meter calibration platform, include: press from both sides table frock guide rail, press from both sides table frock fixing base, press from both sides table frock, tight device in top, supplementary tight device in top, connect the subassembly soon, be equipped with the water intake pipe of first ball valve, multistage centrifugal pump and surge tank, be equipped with the calibration pipeline of electromagnetic flowmeter, electrical control valve and second ball valve, be equipped with the outlet conduit of window and manual three-way valve, mark a water tank and pneumatic three-way valve. The utility model can be compatible with the calibration test of water meters with various specifications, and realizes the simultaneous test and quick clamping of a plurality of water meters; and the online calibration of the electromagnetic flowmeter can be conveniently realized, and the accuracy and reliability of the experiment are ensured.
Description
Technical Field
The utility model belongs to the technical field of the water gauge test, in particular to platform is markd to ultrasonic water meter.
Background
The water meter is a common meter, and each water meter needs to be calibrated before leaving a factory in the production process of the water meter; when the calibration test is carried out, the calibration test is hoped to be carried out on a plurality of water meters at one time, and one calibration device is also hoped to be compatible with water meters of various models for carrying out the calibration test. The existing calibration rack can not realize the calibration test of a plurality of water meters on the same calibration platform through quick assembly and disassembly, and can not realize the calibration test of the water meters compatible with various types on the same calibration platform.
Disclosure of Invention
An object of the utility model is to provide an ultrasonic water meter calibration table to overcome current calibration table and can't realize that a plurality of water meters are installed and removed fast at same calibration bench and test, also can't realize the defect of the compatible unqualified water meter test at same calibration bench.
In order to achieve the above object, the utility model provides an ultrasonic water meter calibration table, include: the clamp table tool guide rail is arranged on the calibration rack; the meter clamping tool fixing seat is arranged on the meter clamping tool guide rail in a sliding manner; the meter clamping tool is arranged on the meter clamping tool fixing seat, two ends of the meter clamping tool are respectively provided with a water meter interface which is communicated with each other, a quick connection assembly is arranged at the water meter interface, and the quick connection assembly can quickly clamp and seal a connector of the ultrasonic water meter; the jacking device is arranged at one end of the clamp meter tooling guide rail, a movable connecting pipe capable of sliding along the clamp meter tooling guide rail is arranged in the jacking device, a movable interface arranged at one end of the movable connecting pipe corresponds to the water meter interface, and the movable interface is provided with the quick-connection assembly; and the auxiliary jacking device is arranged at the other end of the guide rail of the meter clamping tool, an auxiliary connecting pipe is arranged in the auxiliary jacking device, one end of the auxiliary connecting pipe is provided with an auxiliary interface corresponding to the water meter interface, and the auxiliary interface is provided with the quick-connection assembly.
Preferably, in the above technical scheme, a sleeve channel is arranged in a sleeve, the sleeve channel extends outwards from one end of the sleeve and forms a first trepan boring, the end of the meter clamping tool extends into the sleeve channel through the first trepan boring, the sleeve channel extends outwards from the other end of the sleeve and forms a second trepan boring, and the caliber of the sleeve channel gradually increases from the first trepan boring to the second trepan boring; the sealing ring is sleeved at the second sleeve hole; and the spring is arranged between the first trepanning and the end part of the meter clamping tool.
Preferably, in the above technical solution, one end of the movable connection pipe extends into the sleeve passage through the first sleeve hole, and the spring is disposed between one end of the movable connection pipe and the second sleeve hole; one end of the auxiliary connecting pipe extends into the sleeve channel through the first sleeve hole, and the spring is arranged between one end of the auxiliary connecting pipe and the first sleeve hole.
Preferably, in the above technical scheme, the end portion of the table clamping tool, one end of the movable connecting pipe and one end of the auxiliary connecting pipe are connected with one end of the spring clamping piece, and the other end of the spring clamping piece is gradually far away from the axis of the table clamping tool, the axis of the movable connecting pipe and the axis of the auxiliary connecting pipe.
Preferably, in the technical scheme, the jacking device further comprises an air cylinder, the air cylinder can drive the movable connecting pipe to slide, the auxiliary jacking device further comprises an auxiliary connecting pipe seat, the auxiliary connecting pipe is elastically connected between the auxiliary connecting pipe seats, and the auxiliary connecting pipe can stretch along the surface clamping tool guide rail.
Preferably, in the above technical solution, the method further includes: the water inlet pipeline is provided with a first water inlet end and a first water outlet end, a first ball valve, a multistage centrifugal pump and a pressure stabilizing tank are sequentially connected in series from the first water inlet end to the first water outlet end, and the first water outlet end is connected with the other end of the movable connecting pipe; the calibration pipeline is provided with a second water inlet end and a second water outlet end, an electromagnetic flow meter, an electric regulating valve and a second ball valve are sequentially connected in series from the second water inlet end to the second water outlet end, and the second water inlet end is connected with the other end of the auxiliary connecting pipe through a pneumatic ball valve; the water outlet pipeline is provided with a third water inlet end and a third water outlet end, the third water inlet end is connected with the second water outlet end, and a window is connected in series in the water outlet pipeline; and the calibration platform water tank is respectively communicated with the third water outlet end and the first water inlet end.
Preferably, in the above technical solution, the plurality of calibration pipelines are connected in parallel between the third water inlet end and the other end of the auxiliary connection pipe.
Preferably, in the above technical scheme, a transmitter is arranged between the surge tank and the multistage centrifugal pump, and a water inlet and a water outlet of the multistage centrifugal pump are respectively connected with a rubber soft joint.
Preferably, in the above technical scheme, the first water outlet end is connected with the other end of the movable connecting pipe through a pneumatic three-way ball valve.
Preferably, in the above technical scheme, a manual three-way ball valve is connected in series between the window and the third water outlet end.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model provides a press from both sides table frock can realize the quick assembly disassembly of water gauge through connecing the subassembly soon to can guarantee steadiness and the leakproofness that the water gauge is connected installing and removing the in-process.
2. The tight device in top can realize through disposable clamping with supplementary tight device in top, realizes that a plurality of water meters of the same model establish ties simultaneously and mark the experiment.
3. The calibration experiment of the water meters compatible with different models is realized by switching the calibration pipelines provided with the electromagnetic flow meters of different models on the same calibration table.
4. The utility model provides a calibration table can realize the online calibration to the electromagnetic flowmeter through the switching of three-way valve to the degree of accuracy and the reliability of the demarcation experiment of water gauge have been improved.
Drawings
Fig. 1 is a structural diagram of the ultrasonic water meter calibration table of the present invention.
Fig. 2 is a cross-sectional view of the utility model of a middle clamp table tool.
Description of the main reference numerals:
1-clamping a meter tooling guide rail, 11-clamping a meter tooling fixing seat, 12-clamping a meter tooling, 13-water meter interface, 14-movable connecting pipe, 15-movable interface, 16-auxiliary connecting pipe, 161-auxiliary connecting pipe seat, 17-auxiliary interface, 18-air cylinder and 19-pneumatic ball valve;
2-calibrating the rack;
31-a first ball valve, 32-a multistage centrifugal pump, 33-a pressure stabilizing tank, 34-a transmitter, 35-a rubber soft joint and 36-a pneumatic three-way ball valve;
41-an electromagnetic flowmeter, 42-an electric regulating valve and 43-a second ball valve;
51-window, 52-manual three-way ball valve;
6-calibrating a platform water tank, and 61-an overflow port;
71-sleeve, 72-sleeve channel, 73-first trepan, 74-second trepan, 75-seal ring, 76-spring;
8-spring clip.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.
As shown in fig. 1 and 2, the ultrasonic water meter calibration stand in this embodiment includes: the device comprises a clamp meter tooling guide rail 11, a clamp meter tooling fixing seat 12, a water meter interface 13, a movable connecting pipe 14, a movable interface 15, an auxiliary connecting pipe 16, an auxiliary connecting pipe seat 161, an auxiliary interface 17, an air cylinder 18, a pneumatic ball valve 19, a calibration rack 2, a first ball valve 31, a multistage centrifugal pump 32, a pressure stabilizing tank 33, a transmitter 34, a rubber soft joint 35, a pneumatic three-way ball valve 36, an electromagnetic flowmeter 41, an electric regulating valve 42, a second ball valve 43, a window 51, a manual three-way ball valve 52, a calibration rack water tank 6, an overflow port 61, a sleeve 71, a sleeve channel 72, a first sleeve hole 73, a second sleeve hole 74, a sealing ring 75, a spring 76 and a spring clamping piece 8.
The calibration rack 2 is fixed on the ground, a horizontally placed meter clamping tool guide rail 1 is arranged in the tool clamping table, the tool guide rail 1 is fixed on the calibration rack 2, a plurality of meter clamping tool fixing seats 11 are arranged on the meter clamping tool guide rail 1 and can slide along the direction of the tool guide rail 1, and a tubular meter clamping tool 12 is detachably arranged in each tool fixing seat 11; two ends of the meter clamping tool 12 extend outwards from two sides of the meter clamping tool fixing seat 11 and form two water meter interfaces 13, two spring clamping pieces 8 are respectively arranged at two end parts of the meter clamping tool 12, one end of each spring clamping piece 8 is connected with the side wall of the meter clamping tool 12, and the other end of each spring clamping piece 8 extends outwards from the end part of the meter clamping tool 12 and shrinks towards the middle part of the meter clamping tool 12; the connecting line of the two water meter interfaces 13 is parallel to the direction of the meter clamping tool guide rail 1. A jacking device is arranged at one end of the clamp table tool guide rail 1, the jacking device comprises an air cylinder 18 and a movable connecting pipe 14 which can slide along the clamp table tool guide rail 1, a movable connector 15 is arranged at one end of the movable connecting pipe 14, the opening part of the movable connector 15 corresponds to a tool connector 13 on a tool fixing seat 12, and the air cylinder 18 can drive the movable connecting pipe 14 to slide; two spring clamping pieces 8 are arranged at the end part of the movable connecting pipe 14 where the movable joint 15 is located, one end of each spring clamping piece 8 is connected with the side wall of the movable connecting pipe 14, and the other end of each spring clamping piece 8 extends outwards from the end part of the movable connecting pipe 14 and shrinks towards the middle part of the movable connecting pipe 14. The other end of the clamp table tooling guide rail 1 is fixedly provided with an auxiliary connecting pipe seat 161, and an auxiliary connecting pipe 16 is arranged in the auxiliary connecting pipe seat 161 in an elastic connection manner and can perform elastic floating motion along the direction of the clamp table tooling guide rail 1; one end of the auxiliary connecting pipe 16 is provided with an auxiliary interface 17 corresponding to the water meter interface 13, and the other end of the auxiliary connecting pipe 16 is connected with one interface of a pneumatic ball valve 19; two pieces of spring clips 8 are arranged at the end part of the auxiliary connecting pipe 16 where the auxiliary interface 17 is located, one end of each spring clip 8 is connected with the side wall of the auxiliary connecting pipe 16, and the other end of each spring clip 8 extends outwards from the end part of the auxiliary connecting pipe 16 and shrinks towards the middle part of the auxiliary connecting pipe 16.
At water gauge interface 13, activity interface 15 and auxiliary interface 17 department all are equipped with the fast subassembly that connects, should connect the subassembly soon and include: a sleeve 71, a seal 75 and a spring 76. A sleeve channel 72 is arranged inside the sleeve 71, the sleeve channel 72 extends outwards from one end of the sleeve 71 and forms a first sleeve hole 73, and the end part of the meter clamping tool 12, the end part of the movable joint 15 of the movable connecting pipe 14 and the end part of the auxiliary joint 17 of the auxiliary connecting pipe 16 extend into the sleeve channel 72 through the first sleeve hole 73; one end of the meter clamping tool 12, one end of the movable connecting pipe 14 and one end of the auxiliary connecting pipe 16 are connected with one end of the spring clamping piece 8, and the other end of the spring clamping piece 8 is gradually far away from the axis of the meter clamping tool 12, the axis of the movable connecting pipe 14 and the axis of the auxiliary connecting pipe 16; a sleeve channel 72 extends outwards from the other end of the sleeve 71 and forms a second sleeve hole 74, and the caliber of the sleeve channel 72 gradually increases from the first sleeve hole 73 to the second sleeve hole 74 and is in contact with the spring clamping piece 8; a seal ring 75 is mounted at the second sleeve hole 74; and springs 76 are arranged between the first sleeve hole 73 and the end part of the meter clamping tool 12, the end part of the movable connector 15 of the movable connecting pipe 14 and the end part of the auxiliary connector 17 of the auxiliary connecting pipe 16. The interfaces at the two ends of the ultrasonic water meter can be inserted into the second trepan boring 74, and are mutually butted with the water meter interface 13, the movable interface 15 and the auxiliary interface 17, and the interfaces at the two ends of the ultrasonic water meter can be clamped and fixed through the other end of the spring clamping piece 8, and the sealing ring 75 can ensure that the sealing performance between the joints of the interfaces at the two ends of the ultrasonic water meter and the connecting piece is good.
The water inlet pipeline is formed by sequentially connecting the first ball valve 31, the multistage centrifugal pump 32, the transmitter 34 and the surge tank 33 in series, and the inlet end and the outlet end of the multistage centrifugal pump 32 are respectively connected with a water pipe in the water inlet pipeline through a rubber soft joint 35, so that the influence of vibration generated by the multistage centrifugal pump 32 during working on the test water pressure and the test water flow is eliminated. The water inlet end of the water inlet pipeline is a first water inlet end, the water outlet end of the water inlet pipeline is a first water outlet end, the first ball valve 31 is installed at a position close to the first water inlet end, the first water inlet end is communicated with the calibration table water tank 6, the connection position of the first water inlet end is close to the bottom of the calibration water tank 6, and the calibration table water tank 6 is fixed on the calibration table frame 2 and located below the clamp table tool guide rail 1. The pressure stabilizing tank 33 is installed at a position close to the first water outlet end, the first water outlet end is communicated with the other end of the movable connecting pipe 14 through a pneumatic three-way ball valve 36, and the first water outlet end and the other end of the movable connecting pipe 14 are respectively connected with one of the water inlet end and the water outlet end of the pneumatic three-way ball valve 36.
The calibration pipeline is formed by sequentially connecting an electromagnetic flowmeter 41, an electric regulating valve 42 and a second ball valve 43 in series, the water inlet end of the calibration pipeline is a second water inlet end, the water outlet end of the calibration pipeline is a second water outlet end, the second ball valve 43 is arranged at a position close to the second water outlet end, and the electromagnetic flowmeter 41 is arranged at a position close to the second water inlet end; the second water inlet end is connected with the other connector of the pneumatic ball valve 19.
The water outlet pipeline is formed by connecting a window 51 and a manual three-way ball valve 52 in series, the water inlet end of the water outlet pipeline is a third water inlet end, the water outlet end of the water outlet pipeline is a third water outlet end, the window 51 is arranged at a position close to the third water inlet end, and the manual three-way ball valve 52 is arranged at a position close to the third water outlet end; the third water inlet end is connected with the second water inlet end; the third water outlet end is mutually connected with the top of the calibration platform water tank 6 and is communicated with the interior of the calibration platform water tank 6; an overflow opening 61 is arranged above the side surface of the calibration platform water tank 6. The calibration table is provided with three to four calibration pipelines which are connected in parallel, the specifications of the electromagnetic flowmeter 41 and the electric regulating valve 42 in each calibration pipeline are different according to different test requirements, and each calibration pipeline is connected in parallel between the other interface of the pneumatic ball valve 19 and the third water inlet end.
The following further describes the usage and principle of the calibration stand of the ultrasonic water meter in this embodiment, so as to enable those skilled in the art to better understand the technical solution of the present invention.
And (3) fixed installation of the water meter: the clamp table tool 12 in the clamp table tool fixing seat 11 can be replaced according to different specifications of the water meter to be measured, during use, the sleeve 71 in the quick connection assembly is pushed towards the corresponding connecting piece, the spring 76 is stretched, the spring clamping piece 8 at the corresponding interface is expanded outwards from the center of the interface at the moment, the interface of the water meter is inserted into a sleeve channel from the second trepan 74 and is butted with the corresponding interface, then the sleeve 71 is released, the sleeve 71 is driven by the restoring force of the spring 76 to move towards the outer side of the corresponding connecting piece at the moment, and then the movable end of the spring clamping piece 8 is pressed and contracted towards the center of the interface, so that the connecting end of the water meter is clamped and sealed. And then starting the jacking device to enable the movable connecting pipe 14 to move to one side of the auxiliary connecting pipe 16, so that the water meters among the meter clamping tools 12 are compressed, and a serial test pipeline is formed. The elastic connection between the auxiliary connection pipe 16 and the auxiliary connection pipe seat 161 can buffer the clamping force generated by the air cylinder 18, and plays a role in protecting the connectors of the connecting pieces of the water meter and the calibration table.
Switching a calibration pipeline: when measuring the water meters of different specifications, the switching of different calibration pipelines is carried out by switching on and off the second ball valves 43 on the corresponding calibration pipelines, so that the electromagnetic flow meters of corresponding models can measure different water meters.
Calibrating the electromagnetic flowmeter on line: the calibration accuracy of the calibration rig 2 depends mainly on the accuracy of the electromagnetic flow meter 41 in the calibration line, which belongs to a precision metering element and which needs to be calibrated frequently in order to guarantee its accuracy. When the electromagnetic flowmeter 41 needs to be calibrated, the direction of the valve of the manual three-way ball valve 52 is toggled, so that the circulating water in the water outlet pipeline flows into the standard electronic scale with higher precision, and the electromagnetic flowmeter 41 in the corresponding calibration pipeline is calibrated on line by using a quantitative method.
In summary, the utility model can be compatible with the calibration test of water meters of various specifications through the tool clamping table, and can realize the quick clamping and the common measurement of a plurality of water meters through the quick-connecting assembly and the jacking device; the calibration table can also conveniently realize the online calibration of the electromagnetic flowmeter, and the accuracy and the reliability of the experiment are ensured.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (10)
1. The utility model provides an ultrasonic water meter calibration platform which characterized in that includes:
the clamp table tooling guide rail (1) is arranged on the calibration rack (2);
the meter clamping tool fixing seat (11) is arranged on the meter clamping tool guide rail (1) in a sliding manner;
the meter clamping tool (12) is arranged on the meter clamping tool fixing seat (11), two ends of the meter clamping tool (12) are respectively provided with a water meter interface (13) which is communicated with each other, a quick connection assembly is arranged at the water meter interface (13), and the quick connection assembly can quickly clamp and seal a pipe connector of the ultrasonic water meter;
the jacking device is arranged at one end of the clamp meter tooling guide rail (1), a movable connecting pipe (14) capable of sliding along the clamp meter tooling guide rail (1) is arranged in the jacking device, a movable interface (15) arranged at one end of the movable connecting pipe (14) corresponds to the water meter interface (13), and the quick-connection assembly is arranged at the position of the movable interface (15); and
the auxiliary jacking device is arranged at the other end of the guide rail (1) of the meter clamping tool, an auxiliary connecting pipe (16) is arranged in the auxiliary jacking device, one end of the auxiliary connecting pipe (16) is provided with an auxiliary interface (17) corresponding to the water meter interface (13), and the auxiliary interface (17) is provided with the quick-connecting assembly.
2. The ultrasonic water meter calibration stand of claim 1, wherein the quick-connect assembly comprises:
the sleeve (71) is internally provided with a sleeve channel (72), the sleeve channel (72) extends outwards from one end of the sleeve (71) and forms a first trepan boring (73), the end part of the clamp meter tooling (12) extends into the sleeve channel (72) through the first trepan boring (73), the sleeve channel (72) extends outwards from the other end of the sleeve (71) and forms a second trepan boring (74), and the caliber of the sleeve channel (72) is gradually increased from the first trepan boring (73) to the second trepan boring (74);
a sealing ring (75) sleeved at the second sleeve hole (74); and
and the spring (76) is arranged between the first trepan boring (73) and the end part of the clamp surface tool (12).
3. An ultrasonic water meter calibration stand according to claim 2, wherein one end of the movable connection pipe (14) extends into the sleeve channel (72) through the first trepan boring (73), and the spring (76) is arranged between one end of the movable connection pipe (14) and the first trepan boring (73); one end of the auxiliary connecting pipe (16) extends into the sleeve channel (72) through the first trepan boring (73), and the spring (76) is arranged between one end of the auxiliary connecting pipe (16) and the first trepan boring (73).
4. The ultrasonic water meter calibration stand according to claim 3, wherein one end of the meter clamping tool (12), one end of the movable connecting pipe (14) and one end of the auxiliary connecting pipe (16) are connected with one end of a spring clamping piece (8), and the other end of the spring clamping piece (8) is gradually away from the axis of the meter clamping tool (12), the movable connecting pipe (14) and the auxiliary connecting pipe (16).
5. The ultrasonic water meter calibration stand according to claim 1, wherein the tightening device further comprises an air cylinder (18), the air cylinder (18) can drive the movable connection pipe (14) to slide, the auxiliary tightening device further comprises an auxiliary connection pipe seat (161), the auxiliary connection pipe (16) is elastically connected with the auxiliary connection pipe seat (161), and the auxiliary connection pipe (16) can stretch along the meter clamping tool guide rail (1).
6. The ultrasonic water meter calibration stand of claim 1, further comprising:
the water inlet pipeline is provided with a first water inlet end and a first water outlet end, a first ball valve (31), a multistage centrifugal pump (32) and a pressure stabilizing tank (33) are sequentially connected in series from the first water inlet end to the first water outlet end, and the first water outlet end is connected with the other end of the movable connecting pipe (14);
the calibration pipeline is provided with a second water inlet end and a second water outlet end, an electromagnetic flow meter (41), an electric regulating valve (42) and a second ball valve (43) are sequentially connected in series from the second water inlet end to the second water outlet end, and the second water inlet end is connected with the other end of the auxiliary connecting pipe (16) through a pneumatic ball valve (19);
the water outlet pipeline is provided with a third water inlet end and a third water outlet end, the third water inlet end is connected with the second water outlet end, and a window (51) is connected in series in the water outlet pipeline; and
and the calibration table water tank (6) is respectively communicated with the third water outlet end and the first water inlet end.
7. An ultrasonic water meter calibration stand according to claim 6, wherein a plurality of said calibration lines are connected in parallel between said third water inlet end and the other end of said auxiliary connection tube (16).
8. The ultrasonic water meter calibration stand according to claim 6, wherein a transmitter (34) is arranged between the surge tank (33) and the multistage centrifugal pump (32), and a rubber soft joint (35) is respectively connected to a water inlet and a water outlet of the multistage centrifugal pump (32).
9. An ultrasonic water meter calibration stand according to claim 6, wherein the first water outlet end is connected with the other end of the movable connection pipe (14) through a pneumatic three-way ball valve (36).
10. An ultrasonic water meter calibration stand according to claim 6, wherein a manual three-way ball valve (52) is connected in series between the window (51) and the third water outlet end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020336346.XU CN211553014U (en) | 2020-03-17 | 2020-03-17 | Ultrasonic water meter calibration table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020336346.XU CN211553014U (en) | 2020-03-17 | 2020-03-17 | Ultrasonic water meter calibration table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211553014U true CN211553014U (en) | 2020-09-22 |
Family
ID=72495238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020336346.XU Active CN211553014U (en) | 2020-03-17 | 2020-03-17 | Ultrasonic water meter calibration table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211553014U (en) |
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2020
- 2020-03-17 CN CN202020336346.XU patent/CN211553014U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An ultrasonic water meter calibration table Effective date of registration: 20220822 Granted publication date: 20200922 Pledgee: Societe Generale Bank Limited by Share Ltd. Nanning branch Pledgor: Guangxi grace Instrument Technology Co.,Ltd. Registration number: Y2022450000140 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |