CN114166319A - A water meter load detection device that simulates the use environment of the water meter - Google Patents
A water meter load detection device that simulates the use environment of the water meter Download PDFInfo
- Publication number
- CN114166319A CN114166319A CN202111440039.1A CN202111440039A CN114166319A CN 114166319 A CN114166319 A CN 114166319A CN 202111440039 A CN202111440039 A CN 202111440039A CN 114166319 A CN114166319 A CN 114166319A
- Authority
- CN
- China
- Prior art keywords
- water
- water meter
- rotating plate
- mounting frame
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 152
- 238000001514 detection method Methods 0.000 title claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 12
- 238000007667 floating Methods 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 5
- 230000002457 bidirectional effect Effects 0.000 description 14
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 6
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
Landscapes
- Measuring Volume Flow (AREA)
Abstract
本发明适用于水表领域，提供了一种模拟水表使用环境的水表负载检测装置，包括底座，底座上固定有安装架，底座上设置有转动板，并在转动板上设置有用于固定水表的抵接机构，抵接机构与水表连接并导通，且抵接机构与设置在安装架上的放液组件连接并导通；转动板的两端分别通过两个对称设置的二号连接杆与放液组件连接；抬升组件，抬升组件设置在底座上并与转动板的一端连接，且抬升组件通过一号皮带连接设置在安装架上的棘齿盘，棘齿盘上设置有转盘，转盘呈环形阶梯状，并在其上转动安装有与棘齿盘适配的棘齿，棘齿通过弹片与转盘弹性连接；回流组件，回流组件设置在安装架上，并与转盘连接，回流组件可驱使放液组件中的水回流，实现高效率检测。
The invention is suitable for the field of water meters, and provides a water meter load detection device for simulating the use environment of the water meter. The abutting mechanism is connected to and conducts with the water meter, and the abutting mechanism is connected and conducted with the liquid discharge assembly arranged on the mounting frame; The liquid component is connected; the lifting component is arranged on the base and connected to one end of the rotating plate, and the lifting component is connected to the ratchet plate set on the mounting frame through the No. 1 belt, the ratchet plate is provided with a rotating plate, and the rotating plate is annular The ratchet tooth is rotatably mounted on it, which is adapted to the ratchet plate, and the ratchet tooth is elastically connected with the turntable through the elastic sheet; the return component, the return component is arranged on the installation frame and connected with the turntable, and the return component can drive the release. The water backflow in the liquid component realizes high-efficiency detection.
Description
Technical Field
The invention belongs to the field of water meters, and particularly relates to a water meter load detection device for simulating a water meter service environment.
Background
The water meter is a meter for measuring water flow, mostly for measuring the accumulated flow of water, and generally divided into a positive displacement water meter and a speed water meter, which originate from the united kingdom, the development of the water meter has a history of nearly two hundred years, when selecting the specification of the water meter, the size and the flow range of the used flow under the normal condition should be estimated first, and then the water meter with the specification of which the common flow is closest to the value is selected as the first choice.
At present, water meters are widely applied in various industries, and along with the rapid development of electronic information technology, electronic water meters gradually become the development direction of the water meter industry. Enterprises or metering departments producing water meters need to carry out performance verification on indicating value errors of the water meters according to verification regulations set by relevant departments.
The collection method is the most common detection method, and is to collect the water quantity flowing through the measured water meter into one or several containers, and measure the water quantity in the containers by a static volumetric method or a static weighing method, so that a calibrator needs to manually switch the water flow three times, read the indication number of the measured water meter four times and read the water level of a standard measuring device liquid level meter three times, manually record the data, calculate various errors and compare the indication values of the water meter, and determine the indication error of the water meter. The operation of the calibrating device needs to be controlled in real time by calibrating personnel in the whole calibrating process, the valve needs to be closed to wait for the stability of the liquid level in the standard metal measuring device when various readings are read manually, and the stability of the start-stop stages, the interpretation error of the liquid level reading, the indicating scale resolution of the water meter to be calibrated and the human reasons all influence the meter calibrating precision.
Disclosure of Invention
The invention provides a water meter load detection device for simulating a water meter use environment, and aims to solve the problem of human errors in a water meter precision detection process.
The invention is realized in this way, a water meter load detection device for simulating water meter service environment, comprising:
the base is of a cuboid structure, a mounting frame is fixed at the upper part of the base, a rotatable rotating plate is arranged on the base, a butting mechanism used for fixing a water meter is arranged on the rotating plate, the butting mechanism is connected and conducted with the water meter, and the butting mechanism is connected and conducted with a liquid discharging assembly arranged on the mounting frame;
two ends of the rotating plate are respectively connected with the liquid discharging assembly through two symmetrically arranged second connecting rods;
the lifting assembly is arranged on the base and connected with one end of the rotating plate, the lifting assembly is connected with a ratchet disc arranged on the mounting frame through a first belt, a rotating disc is arranged on the ratchet disc and is in an annular step shape, ratchets matched with the ratchet disc are rotatably arranged on the rotating disc, and the ratchets are elastically connected with the rotating disc through elastic sheets;
the backflow assembly is arranged on the mounting frame and connected with the rotary disc, and the backflow assembly can drive water in the liquid discharge assembly to flow back.
Furthermore, the abutting mechanism comprises a first driving device fixedly mounted on the rotating plate, a bidirectional driving assembly arranged on the rotating plate and connected with an output shaft of the first driving device, and two groups of elastic sealing assemblies which are connected with the bidirectional driving assembly and symmetrically arranged;
the elastic sealing assembly is connected and communicated with the liquid discharging assembly through a hose.
Furthermore, the bidirectional driving assembly comprises a bidirectional screw rod rotatably mounted on the rotating plate, and two first threaded sleeves symmetrically arranged on the bidirectional screw rod;
the rotating plate is provided with a through groove along the length direction of the rotating plate, a connecting piece penetrating through the through groove is fixedly installed on the first threaded sleeve, and the connecting piece is connected with the elastic sealing assembly.
Furthermore, the elastic sealing component comprises a connecting pipe which is hollow inside and is connected with the connecting piece, a rubber pad sleeved on the connecting pipe, and a spring sleeved on the connecting pipe;
the connecting pipe is located the both sides of connecting piece are provided with the spacing ring of butt with it, the one end of spring with spacing ring is connected, the other end with the rubber pad is connected, just be provided with on the connecting pipe and be used for right the rubber pad carries out spacing arch.
Furthermore, the liquid discharging assembly comprises a water discharging tank and a water receiving tank which are movably connected with the mounting frame through a guide structure and are arranged at two ends of the base;
the water discharging tank and the water receiving tank are respectively connected with two ends of the rotating plate through the second connecting rod, and are connected and communicated with the connecting rod through the hose while being connected with the backflow component;
the water collecting tank is provided with a liftable detection rod, and the lower part of the detection rod is fixedly provided with a floating ball.
Furthermore, the guide structure comprises two groups of guide plates symmetrically and fixedly mounted on the mounting rack, a long groove arranged on the guide plates, and a pulley arranged in the long groove in a sliding manner;
the pulleys are respectively arranged on two sides of the water discharging tank and the water receiving tank, and two pulleys are arranged on the same side of the water discharging tank and the water receiving tank in the vertical direction.
Furthermore, the lifting assembly comprises a second driving device fixedly mounted on the mounting frame, a one-way screw rod connected with an output shaft of the second driving device and rotatably mounted between the mounting frame and the base, and a second threaded sleeve in threaded fit with the one-way screw rod;
the second threaded sleeve is connected with one end of the rotating plate through a first connecting rod.
Furthermore, the backflow assembly comprises a water pump fixedly mounted on the mounting frame and a bevel gear set connected with the water pump through a second belt;
the water inlet of the water pump is arranged in the water receiving tank, and the water outlet of the water pump is arranged in the water discharging tank;
the bevel gear group comprises a first bevel gear, a second bevel gear and a rotary disc, wherein the first bevel gear is connected with the water pump through the second belt and is rotatably installed on the installation frame, the second bevel gear is meshed with the first bevel gear and is rotatably installed on the installation frame, and the second bevel gear is connected with the rotary disc.
Compared with the prior art, the invention has the beneficial effects that:
because the existing water meter detects the precision, the detected precision has certain error due to the manual visual data, therefore, the water meter is fixed by using the abutting mechanism, the rotating plate rotates at a certain angle under the action of the lifting assembly, so that the liquid level height of the water discharging tank and the water receiving tank is changed, and under the principle of a communicating vessel, the water in the water discharging tank flows into the water receiving tank through the water meter, after stabilization, by directly reading the value on the measuring rod and comparing with the value displayed on the water meter, meanwhile, in order to avoid the contingency of a single measurement, the lifting assembly enables the rotating plate to be leveled so as to carry out the next test, and in the process that the lifting assembly restores to be horizontal, the backflow assembly can enable water in the water receiving tank to flow back to the water discharging tank, and the liquid level of the water discharging tank and the liquid level of the water receiving tank are guaranteed to be kept at the same height in the initial state.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic diagram of a three-dimensional structure provided by the present invention.
Fig. 2 is a schematic diagram of a three-dimensional structure with another angle provided by the present invention.
Fig. 3 is a schematic structural view of the elastic sealing assembly provided by the present invention.
Fig. 4 is a partially exploded view of the present invention.
Fig. 5 is a schematic structural diagram of the measuring rod provided by the present invention.
Reference numerals:
1-base, 2-mounting rack, 3-rotating plate, 4-first driving device, 5-two-way screw rod, 6-first threaded sleeve, 7-connecting piece, 8-connecting pipe, 9-limiting ring, 10-spring, 11-rubber pad, 12-bulge, 13-second driving device, 14-one-way screw rod, 15-second threaded sleeve and 16-first connecting rod, 17-second connecting rod, 18-water discharging tank, 19-guide plate, 20-pulley, 21-water collecting tank, 22-measuring rod, 23-first belt, 24-bevel gear set, 25-rotary table, 26-pawl, 27-elastic sheet, 28-ratchet disc, 29-second belt, 30-water pump and 31-floating ball.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to effectively explain embodiments of the present invention, the embodiments of the present application will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1-5, the present invention provides a water meter load detection device for simulating a water meter usage environment, so as to solve the problem of human error in the water meter accuracy detection process.
The embodiment of the invention provides a water meter load detection device for simulating a water meter service environment, which comprises: 1. the method comprises the following steps:
the water meter support comprises a base 1, wherein the base 1 is of a cuboid structure, an installation frame 2 is fixed at the upper part of the base 1, a rotatable rotating plate 3 is arranged on the base 1, a butting mechanism used for fixing a water meter is arranged on the rotating plate 3, the butting mechanism is connected with and conducted with the water meter, and the butting mechanism is connected with and conducted with a liquid discharging assembly arranged on the installation frame 2;
the abutting mechanism comprises a first driving device 4 fixedly installed on the rotating plate 3, a bidirectional driving assembly arranged on the rotating plate 3 and connected with an output shaft of the first driving device 4, and two groups of elastic sealing assemblies which are connected with the bidirectional driving assembly and symmetrically arranged;
the elastic sealing assembly is connected and communicated with the liquid discharging assembly through a hose;
the bidirectional driving assembly comprises a bidirectional screw rod 5 rotatably mounted on the rotating plate 3 and two first threaded sleeves 6 symmetrically arranged on the bidirectional screw rod 5;
a through groove is formed in the rotating plate 3 along the length direction of the rotating plate, a connecting piece 7 penetrating through the through groove is fixedly installed on the first threaded sleeve 6, and the connecting piece 7 is connected with the elastic sealing assembly;
the elastic sealing assembly comprises a connecting pipe 8 which is hollow inside and is connected with the connecting piece 7, a rubber pad 11 sleeved on the connecting pipe 8, and a spring 10 sleeved on the connecting pipe 8;
the connecting pipe 8 is located the both sides of connecting piece 7 are provided with spacing ring 9 with its butt, the one end of spring 10 with spacing ring 9 is connected, the other end with rubber pad 11 is connected, and be provided with on the connecting pipe 8 and be used for right rubber pad 11 carries out spacing arch 12.
When the bidirectional screw rod is used, the first driving device 4 is controlled to rotate to drive the bidirectional screw rod 5 to rotate, so that the first threaded sleeve 6 in threaded fit with the bidirectional screw rod 5 moves close to each other in the axial direction of the bidirectional screw rod 5 until the rubber pads 11 are tightly attached to two ends of the water meter.
Wherein, for screw-thread fit between two-way lead screw 5 and a screw sleeve 6, when making the both ends of water gauge and rubber pad 11 closely laminate, even drive arrangement 4 outage stop work, can not lead to rubber pad 11 and water gauge to take place the separation phenomenon yet, guarantee the accuracy of connecting between the two.
Two ends of the rotating plate 3 are respectively connected with the liquid discharging assembly through two symmetrically arranged second connecting rods 17;
the lifting assembly is arranged on the base 1 and connected with one end of the rotating plate 3, the lifting assembly is connected with a ratchet disc 28 arranged on the mounting frame 2 through a first belt 23, a rotating disc 25 is arranged on the ratchet disc 28, the rotating disc 25 is in an annular step shape, ratchets 26 matched with the ratchet disc 28 are rotatably arranged on the rotating disc 25, and the ratchets 26 are elastically connected with the rotating disc 25 through elastic sheets 27;
the liquid discharging assembly comprises a water discharging tank 18 and a water receiving tank 21 which are movably connected with the mounting frame 2 through a guide structure and arranged at two ends of the base 1;
the water discharging tank 18 and the water receiving tank 21 are respectively connected with two ends of the rotating plate 3 through the second connecting rod 17, and are connected with the backflow component and simultaneously connected and communicated with the connecting rod 8 through the hose;
the water receiving tank 21 is provided with a liftable detection rod 22, and a floating ball 31 is fixedly arranged at the lower part of the detection rod 22;
the guide structure comprises two groups of guide plates 19 symmetrically and fixedly mounted on the mounting rack 2, a long groove arranged on the guide plates 19, and a pulley 20 arranged in the long groove in a sliding manner;
the pulleys 20 are respectively arranged on two sides of the water discharging tank 18 and the water receiving tank 21, and two pulleys 20 are arranged on the same side of the water discharging tank and the water receiving tank in the vertical direction;
the lifting assembly comprises a second driving device 13 fixedly mounted on the mounting frame 2, a one-way screw rod 14 connected with an output shaft of the second driving device 13 and rotatably mounted between the mounting frame 2 and the base 1, and a second threaded sleeve 15 in threaded fit with the one-way screw rod 14;
the second threaded sleeve 15 is connected with one end of the rotating plate 3 through a first connecting rod 16.
When the water discharge device is used, when the second driving device 13 rotates, the one-way screw rod 14 is driven to rotate, so that the second threaded sleeve 15 moves in the axial direction of the one-way screw rod 14, the rotating plate 3 rotates through the first supporting rod 16, and the heights of the water discharge tank 18 and the water receiving tank 21 are changed.
It should be noted that, during the process of tilting the rotating plate 3 from horizontal to horizontal, the ratchet plate 28 rotates along with the first driving device 13, but the ratchet plate moves away from the ratchet 26, so that the backflow component does not rotate, and conversely, during the process of tilting the rotating plate 3 from horizontal to horizontal, the backflow component operates to pump the water in the water receiving tank 21 back to the water tank 18.
The backflow assembly is arranged on the mounting frame 2 and is connected with the rotary disc 25, and the backflow assembly can drive water in the liquid discharging assembly to flow back;
the backflow component comprises a water pump 30 fixedly mounted on the mounting frame 2 and a bevel gear group 24 connected with the water pump 30 through a second belt 29;
a water inlet of the water pump 30 is arranged in the water receiving tank 21, and a water outlet of the water pump is arranged in the water discharging tank 18;
the bevel gear set 24 comprises a first bevel gear which is connected with a water pump 30 through the second belt 29 and is rotatably installed on the mounting frame 2, and a second bevel gear which is meshed with the first bevel gear and is rotatably installed on the mounting frame 2, wherein the second bevel gear is connected with the rotary disc 25.
During the tilting of the rotary plate 3 from horizontal to horizontal, the water pump 30 is operated to pump the water in the water receiving tank 21 back into the water tank 18.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111440039.1A CN114166319B (en) | 2021-11-27 | 2021-11-27 | A water meter load detection device simulating a water meter use environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111440039.1A CN114166319B (en) | 2021-11-27 | 2021-11-27 | A water meter load detection device simulating a water meter use environment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114166319A true CN114166319A (en) | 2022-03-11 |
| CN114166319B CN114166319B (en) | 2025-04-15 |
Family
ID=80481782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111440039.1A Active CN114166319B (en) | 2021-11-27 | 2021-11-27 | A water meter load detection device simulating a water meter use environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114166319B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116698164A (en) * | 2023-08-08 | 2023-09-05 | 河北丰源智控科技股份有限公司 | Thing networking water gauge calibrating installation |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016112196A1 (en) * | 2016-07-04 | 2018-01-04 | Bundesrepublik Deutschland, Vertreten Durch Das Bundesministerium Für Wirtschaft Und Energie, Dieses Vertreten Durch Den Präsidenten Der Physikalisch-Technischen Bundesanstalt | Flow-generating device and method for calibrating a DUT |
| KR20180057055A (en) * | 2016-11-21 | 2018-05-30 | 한국표준과학연구원 | The evaluation system and method for flowmeter |
| CN110631664A (en) * | 2019-09-29 | 2019-12-31 | 特福隆（上海）科技有限公司 | A liquid flow calibration calibration device |
| CN111397702A (en) * | 2020-04-08 | 2020-07-10 | 杭州德创能源设备有限公司 | Automatic water meter verification system |
| CN112179459A (en) * | 2020-09-30 | 2021-01-05 | 湖南常德牌水表制造有限公司 | Water meter load detection device for simulating water meter use environment |
| CN213120754U (en) * | 2020-07-28 | 2021-05-04 | 开封锦科流量仪表有限公司 | Water flow standard device |
| CN213148014U (en) * | 2020-08-10 | 2021-05-07 | 山东埃美诺仪表有限公司 | Thing networking water gauge check out test set |
| CN112816036A (en) * | 2021-01-26 | 2021-05-18 | 沭阳亿彩泡塑有限公司 | Water meter detection device and method |
| CN213714490U (en) * | 2020-12-18 | 2021-07-16 | 吉林宏盛科技有限公司 | Water meter flow calibrating installation |
-
2021
- 2021-11-27 CN CN202111440039.1A patent/CN114166319B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016112196A1 (en) * | 2016-07-04 | 2018-01-04 | Bundesrepublik Deutschland, Vertreten Durch Das Bundesministerium Für Wirtschaft Und Energie, Dieses Vertreten Durch Den Präsidenten Der Physikalisch-Technischen Bundesanstalt | Flow-generating device and method for calibrating a DUT |
| KR20180057055A (en) * | 2016-11-21 | 2018-05-30 | 한국표준과학연구원 | The evaluation system and method for flowmeter |
| CN110631664A (en) * | 2019-09-29 | 2019-12-31 | 特福隆（上海）科技有限公司 | A liquid flow calibration calibration device |
| CN111397702A (en) * | 2020-04-08 | 2020-07-10 | 杭州德创能源设备有限公司 | Automatic water meter verification system |
| CN213120754U (en) * | 2020-07-28 | 2021-05-04 | 开封锦科流量仪表有限公司 | Water flow standard device |
| CN213148014U (en) * | 2020-08-10 | 2021-05-07 | 山东埃美诺仪表有限公司 | Thing networking water gauge check out test set |
| CN112179459A (en) * | 2020-09-30 | 2021-01-05 | 湖南常德牌水表制造有限公司 | Water meter load detection device for simulating water meter use environment |
| CN213714490U (en) * | 2020-12-18 | 2021-07-16 | 吉林宏盛科技有限公司 | Water meter flow calibrating installation |
| CN112816036A (en) * | 2021-01-26 | 2021-05-18 | 沭阳亿彩泡塑有限公司 | Water meter detection device and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116698164A (en) * | 2023-08-08 | 2023-09-05 | 河北丰源智控科技股份有限公司 | Thing networking water gauge calibrating installation |
| CN116698164B (en) * | 2023-08-08 | 2023-10-13 | 河北丰源智控科技股份有限公司 | Thing networking water gauge calibrating installation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114166319B (en) | 2025-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104596620B (en) | Ultrasonic water meter flow verification standard set-up | |
| CN203824621U (en) | Device for detecting and testing nested static force water level balanced type measuring weir water gauge | |
| CN204461304U (en) | A kind of tube wall thickness analyzer | |
| CN108132081A (en) | An embedded mobile tiny liquid flow calibration device | |
| CN206479237U (en) | A kind of water meter self-checking device | |
| CN103759791B (en) | Portable multi-function liquid level emasuring device and measuring method based on laser and pressure | |
| US11703401B2 (en) | Measuring device and measuring method for measuring unbalanced moment of bottom surface of circular valve core | |
| CN204594513U (en) | A kind of probe positioning installation apparatus of ultrasonic flow meter | |
| CN114166319B (en) | A water meter load detection device simulating a water meter use environment | |
| CN101476962A (en) | Pressure meter effective area measuring method | |
| CN216646552U (en) | Liquid flow rate metering device | |
| CN106949942A (en) | The calibration method of its measurement oil tank outage of oil truck capacity calibrating installation and application | |
| CN206192571U (en) | Type of falling U pipe differential gauge | |
| CN112179459B (en) | Water meter load detection device for simulating water meter use environment | |
| CN204007413U (en) | Oil pipes internal thread height-gauge | |
| CN204422030U (en) | Ultrasonic water meter flow verification standard set-up | |
| CN215726271U (en) | Portable ultrasonic wave open channel flowmeter's calibrating device | |
| CN106338357A (en) | Inverted-U-shaped-tube differential pressure gauge | |
| CN208998863U (en) | The volumetric metering station of high degree of automation | |
| CN112254607A (en) | Precision gear runout measuring device | |
| CN209182194U (en) | A weighing density meter | |
| CN201188023Y (en) | Target flow switch detection device | |
| CN113049066A (en) | Calibration device for liquid level meter | |
| CN215639694U (en) | Liquid level meter performance detection equipment | |
| CN203688046U (en) | Device for demarcating LNG (liquefied natural gas) dispenser calibrating device by quality method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |