CN107747986B - Water flow detection device - Google Patents
Water flow detection device Download PDFInfo
- Publication number
- CN107747986B CN107747986B CN201711339061.0A CN201711339061A CN107747986B CN 107747986 B CN107747986 B CN 107747986B CN 201711339061 A CN201711339061 A CN 201711339061A CN 107747986 B CN107747986 B CN 107747986B
- Authority
- CN
- China
- Prior art keywords
- ring
- fixed
- assembly
- pipe
- guide rod
- 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.)
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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 238000001514 detection method Methods 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims description 18
- 239000011521 glass Substances 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/18—Supports or connecting means for meters
- G01F15/185—Connecting means, e.g. bypass conduits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/06—Indicating or recording devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/10—Preventing damage by freezing or excess pressure or insufficient pressure
Abstract
The invention provides a water flow detection device, which comprises a connecting ring, a pressing plate, a moving rod, a groove, a moving clamping ring, a fixed clamping ring, a concave table, an assembling ring, a guide rod and a buffer ring, wherein the connecting ring is fixed on the left end face of the assembling pipe, the fixed clamping ring is fixed on the lower side face of the connecting ring, the moving clamping ring is fixed at the lower end of the moving rod, the upper end of the moving rod penetrates through the upper side face of the inner part of the connecting ring and the groove and extends to the upper side of the connecting ring, the groove is formed at the upper end of the annular side face of the connecting ring, the pressing plate is arranged at the upper end of the annular side face of the connecting ring on the right side of the groove through a rotating shaft.
Description
Technical Field
The invention relates to a water flow detection device, and belongs to the field of liquid detection equipment.
Background
In the prior art, the water flow detection device is connected with the pipeline through the flange plate, and the pipeline with the flange is required to be connected during connection, so that the adaptability is poor, and the connection operation is complex; in the prior art, the water flow detection device does not have a dial plate protection structure in the use process, and the dial plate is easy to be crushed by objects, so that normal work is influenced, and the water flow detection device is needed to solve the problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a water flow detection device so as to solve the problems in the background art.
In order to achieve the above object, the present invention is realized by the following technical scheme: the water flow detection device comprises a water pipe, a connecting component, a fitting pipe, a dial plate and a protection component, wherein the water pipe is connected with the fitting pipe through the connecting component, the dial plate is arranged at the upper end of the annular side surface of the fitting pipe, the protection component is assembled on the left side surface of the dial plate, the connecting component is provided with two groups and two groups, the connecting component is respectively arranged at the left end and the right end of the fitting pipe, the connecting component comprises a connecting ring, a pressing plate, a moving rod, a groove, a moving clamping ring, a fixed clamping ring, a concave table and a sealing ring, the concave table is respectively arranged at the left end and the right end of the inside of the fitting pipe, the sealing ring is assembled at the left side surface of the concave table, the connecting ring is fixed at the left end surface of the fitting pipe, the fixed clamping ring is fixed at the lower side surface of the inside of the connecting ring, the movable clamp ring is fixed at the lower end of the movable rod, the upper end of the movable rod penetrates through the upper side face and the groove in the connecting ring and extends to the upper side of the connecting ring, the groove is formed in the upper end of the annular side face of the connecting ring, the pressing plate is arranged at the upper end of the annular side face of the connecting ring on the right side of the groove through a rotating shaft, the protection assembly comprises an assembly ring, a guide rod, a spring, a buffer ring and a magnifier, the assembly ring is fixed at the left part of the annular side face of the dial plate, the right end of the guide rod is assembled in the assembly ring, the left end of the guide rod is fixed on the right side face of the buffer ring, the spring is assembled on the annular side face of the guide rod on the left side of the assembly ring, and the magnifier is fixed in the buffer ring.
In an embodiment, an elastic rubber pad is fixed on the lower end face of the pressing plate, and the elastic rubber pad is of an arc-shaped structure.
In an embodiment, the lower side surface of the movable clamping ring is provided with anti-skid patterns, and the upper side surface of the fixed clamping ring is provided with anti-skid patterns.
In one embodiment, a sealing sleeve is fixed on the annular side surface of the concave table, and the sealing sleeve is fixed in the concave table through screws.
In one embodiment, a baffle is fixed at the right end of the guide rod, and the baffle is connected with the guide rod through a screw.
In an embodiment, the guide rods are more than two, and the guide rods are equidistantly fixed on the left side face of the assembly ring.
The invention has the beneficial effects that: according to the water flow detection device, the connecting ring, the pressing plate, the moving rod, the groove, the moving clamping ring, the fixed clamping ring, the concave table and the sealing ring are added, so that the device is convenient to connect with a water pipe, the connection operation is simple, the adaptability is high, and the problems that the water flow detection device in the prior art is connected with the pipeline through the flange plate, the pipeline with the flange is required to be connected during connection, the adaptability is poor, and the connection operation is complicated are solved.
The invention adds the assembly ring, the guide rod, the spring, the buffer ring and the magnifying glass, the design realizes the protection function of the dial plate, prolongs the service life, and solves the problem that the dial plate is easy to be injured by objects to influence the normal work because the water flow detection device in the prior art does not have the dial plate protection structure in the use process.
The elastic rubber cushion is added, so that the stability of contact between the pressing plate and the movable rod is improved, the stability of contact between the movable clamping ring and the fixed clamping ring and the water pipe is improved, the sealing sleeve is added, the sealing performance of water pipe installation is improved, and the baffle table is added, so that the situation that the guide rod is separated from the assembly ring is avoided.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a water flow rate detection device according to the present invention;
FIG. 2 is a schematic structural view of a connection assembly in the water flow rate detection device of the present invention;
FIG. 3 is a schematic structural view of a protective component in the water flow rate detection device of the present invention;
in the figure: 1-water pipe, 2-connecting component, 3-assembly pipe, 4-dial plate, 5-protection component, 21-connecting ring, 22-pressing plate, 23-moving rod, 24-groove, 25-moving clamping ring, 26-fixed clamping ring, 27-concave table, 28-sealing ring, 51-assembly ring, 52-guide rod, 53-spring, 54-buffer ring and 55-magnifying lens.
Detailed Description
Before the embodiments are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of the terms "comprising," "including," "having," and the like are intended to encompass the items listed thereafter and equivalents thereof as well as additional items. In particular, when "a certain element" is described, the present invention is not limited to the number of the element as one, but may include a plurality of the elements.
Referring to fig. 1-3, the present invention provides a technical solution: the water flow detection device comprises a water pipe 1, a connecting component 2, a fitting pipe 3, a dial 4 and a protection component 5, wherein the water pipe 1 is connected with the fitting pipe 3 through the connecting component 2, the dial 4 is arranged at the upper end of the annular side face of the fitting pipe 3, and the protection component 5 is assembled on the left side face of the dial 4.
The connecting component 2 is equipped with two sets of, two sets of connecting component 2 install respectively at the left end and the right-hand member of dress pipe 3, connecting component 2 includes go-between 21, clamp plate 22, movable rod 23, recess 24, movable snap ring 25, fixed snap ring 26, concave station 27 and sealing washer 28, concave station 27 has all been seted up to the inside left end of dress pipe 3 and right-hand member, sealing washer 28 assembles in the inside left surface of concave station 27, go-between 21 is fixed at the left end face of dress pipe 3, fixed snap ring 26 is fixed at the inside downside of go-between 21, movable snap ring 25 is fixed at the movable rod 23 lower extreme, movable rod 23 upper end passes go-between 21 inside upside and recess 24, and extend to the go-between 21 upside, recess 24 is seted up at the annular side upper end of go-between 21, the clamp plate 22 is installed at the annular side upper end of go-between 21 on the right side of recess 24 through the pivot, the water flow detection device is connected with the pipeline through the ring flange, the pipeline that need be connected with the same processing has flange during the connection, adaptability is poor, and the complicated problem of connection operation.
The protection component 5 comprises an assembly ring 51, a guide rod 52, a spring 53, a buffer ring 54 and a magnifying glass 55, wherein the assembly ring 51 is fixed at the left part of the annular side surface of the dial plate 4, the right end of the guide rod 52 is assembled inside the assembly ring 51, the left end of the guide rod 52 is fixed at the right side surface of the buffer ring 54, the spring 53 is assembled at the annular side surface of the guide rod 52 at the left side of the assembly ring 51, and the magnifying glass 55 is fixed inside the buffer ring 54.
The lower end face of the pressing plate 22 is fixed with an elastic rubber mat, the elastic rubber mat is of an arc-shaped structure, the lower side face of the movable clamping ring 25 is provided with anti-skidding patterns, the upper side face of the fixed clamping ring 26 is provided with anti-skidding patterns, the annular side face inside the concave table 27 is fixed with a sealing sleeve, the sealing sleeve is fixed inside the concave table 27 through screws, the right end of the guide rod 52 is fixed with a baffle table, the baffle table is connected with the guide rod 52 through screws, the guide rod 52 is provided with more than two guide rods 52, and the more than two guide rods 52 are equidistantly fixed on the left side face of the assembly ring 51.
The specific embodiment is as follows: when the device is installed by a user, the user moves the water pipe 1 into the concave table 27 and pushes the water pipe 1, so that the right end face of the water pipe 1 is tightly attached to the left side face inside the concave table 27, meanwhile, the water pipe 1 is placed inside the fixed clamping ring 26, then the user presses the moving rod 23 forcefully, the moving rod 23 moves to drive the moving clamping ring 25 to move, when the moving clamping ring 25 is tightly attached to the upper end of the annular side face of the water pipe 1, the user rotates the pressing plate 22 around the rotating shaft, when the pressing plate 22 rotates to the upper end of the moving rod 23, the pressing plate 22 limits the position of the moving rod 23, and therefore the fixing of the position of the moving clamping ring 25 is achieved, the sealing performance between the water pipe 1 and the assembling pipe 3 is improved due to the sealing ring 28 and the sealing sleeve.
In the use of this device, when having the object to pound to dial plate 4, the object contacts with magnifying glass 55 and buffer ring 54 to make magnifying glass 55 and buffer ring 54 produce the removal, thereby buffer ring 54 drives guide bar 52 and removes, produces compressive force simultaneously to spring 53, makes spring 53 shrink, realizes the buffering of impact force then, and this design has realized the safeguard function of dial plate 4.
The concepts described herein may be embodied in other forms without departing from the spirit or characteristics thereof. The particular embodiments disclosed are illustrative and not restrictive. The scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. Any changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (1)
1. Water flow detection device, including water pipe, coupling assembling, dress pipe, dial plate and protection subassembly, its characterized in that: the water pipe is connected with the assembly pipe through a connecting component, the dial plate is arranged at the upper end of the annular side surface of the assembly pipe, and the protection component is assembled on the left side surface of the dial plate;
the connecting assembly is provided with two groups, the two groups of connecting assemblies are respectively arranged at the left end and the right end of the assembling pipe, the connecting assembly comprises a connecting ring, a pressing plate, a moving rod, a groove, a moving clamping ring, a fixed clamping ring, a concave table and a sealing ring, the concave table is arranged at the left end and the right end inside the assembling pipe, the sealing ring is assembled at the left side surface inside the concave table, the connecting ring is fixed at the left end surface of the assembling pipe, the fixed clamping ring is fixed at the lower side surface inside the connecting ring, the moving clamping ring is fixed at the lower end of the moving rod, the upper end of the moving rod penetrates through the upper side surface inside the connecting ring and the groove and extends to the upper side of the connecting ring, the groove is arranged at the upper end of the annular side surface of the connecting ring, and the pressing plate is arranged at the upper end of the annular side surface of the connecting ring on the right side of the groove through a rotating shaft; an elastic rubber cushion is fixed on the lower end surface of the pressing plate, and the elastic rubber cushion is of an arc-shaped structure; the lower side surface of the movable clamping ring is provided with anti-skid patterns, and the upper side surface of the fixed clamping ring is provided with anti-skid patterns; the sealing sleeve is fixed on the annular side surface of the concave table, and is fixed in the concave table through screws;
the protection assembly comprises an assembly ring, a guide rod, a spring, a buffer ring and a magnifying glass, wherein the assembly ring is fixed at the left part of the annular side surface of the dial plate, the right end of the guide rod is assembled in the assembly ring, the left end of the guide rod is fixed at the right side surface of the buffer ring, the spring is assembled at the annular side surface of the guide rod at the left side of the assembly ring, and the magnifying glass is fixed in the buffer ring; a baffle table is fixed at the right end of the guide rod and is connected with the guide rod through a screw; the guide rods are arranged at more than two, and the guide rods are fixed on the left side face of the assembly ring at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711339061.0A CN107747986B (en) | 2017-12-14 | 2017-12-14 | Water flow detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711339061.0A CN107747986B (en) | 2017-12-14 | 2017-12-14 | Water flow detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107747986A CN107747986A (en) | 2018-03-02 |
| CN107747986B true CN107747986B (en) | 2024-03-19 |
Family
ID=61250470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711339061.0A Active CN107747986B (en) | 2017-12-14 | 2017-12-14 | Water flow detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107747986B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931273B (en) * | 2018-07-26 | 2020-04-17 | 合肥精大仪表股份有限公司 | Roots flowmeter |
| CN109186701A (en) * | 2018-08-15 | 2019-01-11 | 贵州大学 | A kind of shale gas exploitation metering device |
| CN110726451B (en) * | 2019-09-11 | 2021-01-01 | 江苏微浪电子科技有限公司 | Industrial flow meter for multi-directional flow and use method thereof |
| CN111238596B (en) * | 2020-03-13 | 2021-04-16 | 宁波启源智能仪表有限公司 | Intelligent water meter capable of preventing magnetic interference |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040069919A (en) * | 2003-01-30 | 2004-08-06 | 강순이 | Opening valve for water gauge with locking device |
| KR20050002788A (en) * | 2004-12-17 | 2005-01-10 | 서동혁 | the water meter case with insulation layer of loess |
| AU2007339414A1 (en) * | 2006-02-13 | 2008-07-10 | Halkey-Roberts Corporation | Apparatus and method for using tetrazine-based energetic material |
| KR20100037492A (en) * | 2008-10-01 | 2010-04-09 | 김정춘 | Watermeter and coupling apparatus for sealing |
| KR20120010689A (en) * | 2010-07-27 | 2012-02-06 | 대성계전(주) | The Counting Transmission Apparatus of Gas Meter |
| CN102818600A (en) * | 2011-06-23 | 2012-12-12 | 温岭甬岭水表有限公司 | Water meter snap ring locking device |
| CN203176531U (en) * | 2013-01-08 | 2013-09-04 | 陈明初 | Nonmetal electrothermal film instant-heating type electric heating faucet capable of conducting secondary circulating heating |
| KR20150019827A (en) * | 2013-08-16 | 2015-02-25 | (주)와콘 | Intelligent water gauge system capaple of checking multiple function |
| JP2016180606A (en) * | 2015-03-23 | 2016-10-13 | アズビル金門株式会社 | Water meter, and assembly method and disassembly method therefor |
| CN106153143A (en) * | 2015-03-31 | 2016-11-23 | 安徽春辉仪表线缆集团有限公司 | A kind of flowmeter mounting structure |
| CN106525188A (en) * | 2016-12-22 | 2017-03-22 | 昆山佰亚高分子科技有限公司 | Flow meter testing tool |
| CN206655858U (en) * | 2017-03-27 | 2017-11-21 | 徐州机电技师学院 | A kind of low abrasion hydraulic transmission |
| CN207649709U (en) * | 2017-12-14 | 2018-07-24 | 重庆市中美电力设备有限公司 | Flow amount detecting device |
-
2017
- 2017-12-14 CN CN201711339061.0A patent/CN107747986B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040069919A (en) * | 2003-01-30 | 2004-08-06 | 강순이 | Opening valve for water gauge with locking device |
| KR20050002788A (en) * | 2004-12-17 | 2005-01-10 | 서동혁 | the water meter case with insulation layer of loess |
| AU2007339414A1 (en) * | 2006-02-13 | 2008-07-10 | Halkey-Roberts Corporation | Apparatus and method for using tetrazine-based energetic material |
| KR20100037492A (en) * | 2008-10-01 | 2010-04-09 | 김정춘 | Watermeter and coupling apparatus for sealing |
| KR20120010689A (en) * | 2010-07-27 | 2012-02-06 | 대성계전(주) | The Counting Transmission Apparatus of Gas Meter |
| CN102818600A (en) * | 2011-06-23 | 2012-12-12 | 温岭甬岭水表有限公司 | Water meter snap ring locking device |
| CN203176531U (en) * | 2013-01-08 | 2013-09-04 | 陈明初 | Nonmetal electrothermal film instant-heating type electric heating faucet capable of conducting secondary circulating heating |
| KR20150019827A (en) * | 2013-08-16 | 2015-02-25 | (주)와콘 | Intelligent water gauge system capaple of checking multiple function |
| JP2016180606A (en) * | 2015-03-23 | 2016-10-13 | アズビル金門株式会社 | Water meter, and assembly method and disassembly method therefor |
| CN106153143A (en) * | 2015-03-31 | 2016-11-23 | 安徽春辉仪表线缆集团有限公司 | A kind of flowmeter mounting structure |
| CN106525188A (en) * | 2016-12-22 | 2017-03-22 | 昆山佰亚高分子科技有限公司 | Flow meter testing tool |
| CN206655858U (en) * | 2017-03-27 | 2017-11-21 | 徐州机电技师学院 | A kind of low abrasion hydraulic transmission |
| CN207649709U (en) * | 2017-12-14 | 2018-07-24 | 重庆市中美电力设备有限公司 | Flow amount detecting device |
Non-Patent Citations (2)
| Title |
|---|
| 固体火箭发动机用卡环装配工艺研究;张鹏;张文;胡强;刘涛;;航天制造技术(第06期);全文 * |
| 罗茨鼓风机常见故障的原因及排除;王超;;水泥技术(第03期);全文 * |
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| Publication number | Publication date |
|---|---|
| CN107747986A (en) | 2018-03-02 |
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Effective date of registration: 20231124 Address after: 509 Kangrui Times Square, Keyuan Business Building, 39 Huarong Road, Gaofeng Community, Dalang Street, Longhua District, Shenzhen, Guangdong Province, 518000 Applicant after: Shenzhen lizhuan Technology Transfer Center Co.,Ltd. Address before: 400000 19-3-1, block B, Shiqiaopu Electromechanical market, No. 19, Shiyang Road, Jiulongpo District, Chongqing Applicant before: CHONGQING ZOONMAY POWER EQUIPMENT CO.,LTD. |
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Effective date of registration: 20240201 Address after: 710000, Room 01, 25th Floor, Block C, Saigao Plaza, No. 55 Fengcheng Seventh Road, Xi'an Economic and Technological Development Zone, Shaanxi Province Applicant after: Xi'an Hengli Petroleum Equipment Co.,Ltd. Country or region after: China Address before: 509 Kangrui Times Square, Keyuan Business Building, 39 Huarong Road, Gaofeng Community, Dalang Street, Longhua District, Shenzhen, Guangdong Province, 518000 Applicant before: Shenzhen lizhuan Technology Transfer Center Co.,Ltd. Country or region before: China |
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