CN2854521Y - Anti-theft gas meter - Google Patents
Anti-theft gas meter Download PDFInfo
- Publication number
- CN2854521Y CN2854521Y CN 200520026135 CN200520026135U CN2854521Y CN 2854521 Y CN2854521 Y CN 2854521Y CN 200520026135 CN200520026135 CN 200520026135 CN 200520026135 U CN200520026135 U CN 200520026135U CN 2854521 Y CN2854521 Y CN 2854521Y
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- China
- Prior art keywords
- gas
- valve body
- valve
- meter
- flow meter
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- Expired - Fee Related
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- Check Valves (AREA)
Abstract
The utility model discloses a theft protection fuel gas meter for measuring the coal gas, comprising an outer housing, a gas inlet pipe and a gas outlet pipe. The gas outlet pipe is glued with an inverted valve inside the fuel gas meter. The inverted valve is composed of an angular valve body inside of which is provided with steps, and a round board valve plug sheathed in the valve body whose inner surface is provided with L-shape set legs. L-shape set legs cooperates with the valve body of the inverted valve in the sliding form. At the same time, when the inverted valve is started, L-shape set leg joins with the lower surface of the valve body in spacing. The inner surface of the valve plug is closely mated with the inboard steps of the valve body. The theft protection fuel gas meter is provided with high reliability and the inverted valve acts flexibly so that the utility model can effectively prevent the theft action from occurring.
Description
Technical field
The utility model relates to the gas metering field, particularly relates to a kind of gas-robbery resistence gas meter, flow meter.
Background technology
At present, gas industry is when measuring client's gas consumption, and generally the measurement instrument of Shi Yonging is gas meter, flow meter (gas meter, a natural gas meter), and these tables all are by shell, draft tube, escape pipe, movement basically, and counter demonstration etc. partly constitute.Correct installation method is: the draft tube of gas meter, flow meter and source of the gas pipeline join, the escape pipe of gas meter, flow meter joins with the pipeline that client's gas kitchen ranges links to each other, when the client uses combustion gas, combustion gas enters in the gas meter, flow meter, under the differential pressure action between turnover gas, promote the movement motion in the gas meter, flow meter, the measurement chamber in the movement is that test constantly is discharged the volume in its chamber, and, be delivered to the gas volume cumulative amount that counting assembly carries out stored counts and demonstrates the gas meter, flow meter of flowing through with the measurement result conversion.When the client has a mind to or be not intended to mistake installation generation (escape pipe of gas meter, flow meter and air inlet source join), source of the gas still can constantly be supplied with the client through gas meter, flow meter and use, though gas meter, flow meter is not swung to counting, but, also counting forward not, the generation of this accident causes economic loss must for the company that manages combustion gas.In recent years, the gas meter, flow meter of some multi-form band anti-theft device of gas has also appearred, such as, add the front cover adapter of plastic in adapter place of gas meter, flow meter, though this method also can play effect, because plastics belong to inflammable thing, poor stability, manufacturing cost height simultaneously.Again such as, one piece is entitled as " water meter, the gas meter anti-theft arrangement " Chinese utility model patent CN 200320110324, disclose a kind of anti-theft arrangement, this anti-theft arrangement is in the centre of cast copper valve body symmetry two moving vanes to be installed, and the riveting of cast copper valve is adorned or is embedded in the draft tube, when normal mounting is used, coal gas flows to the gas outlet by air intake opening, and moving vane is open-shaped, and counter rotates; When oppositely installing and using, coal gas flows to air intake opening by the gas outlet, and under the effect of gas pressure, moving vane is separated to both sides by the centre, close valve orifice.This anti-theft arrangement is complex structure not only, and when bleed pressure is on the low side, can not guarantee fully that moving vane separates to both sides, close valve orifice, therefore, poor reliability.
The utility model content
The purpose of this utility model is to overcome above-mentioned defective, provides a kind of simple in structure, and it is convenient to install, service-strong gas-robbery resistence gas meter, flow meter.
To achieve these goals, the technical solution adopted in the utility model is: a kind of gas-robbery resistence gas meter, flow meter, comprise shell, draft tube, escape pipe, movement, and draft tube and source of the gas pipeline join, and the escape pipe that has reverse checkvalve joins with the pipeline that is connected to gas kitchen ranges.Described reverse checkvalve is to be made of valve body and a valve plug that is enclosed within the intrinsic L shaped location of circular board-like its inside surface leg in the valve body that circular its inboard has a step, this L shaped location leg and valve body are and are slidingly matched, and the step of the inside surface of valve plug and valve body inboard is and closely cooperates.
The utility model can also adopt following technical measures:
Described reverse checkvalve is when opening, and 3～5 intrinsic L shaped location legs of the inside surface of valve plug are connected with the lower surface of valve body is spacing, and the inside surface of valve plug and the upper surface of valve body keep certain clearance.Described reverse checkvalve adopts the tackifier fluid sealant to be connected in the escape pipe of gas meter, flow meter.
The valve body arranged outside of described reverse checkvalve has the annular seal groove.
The beneficial effects of the utility model are: because the valve plug of reverse checkvalve adopts lift to be sleeved in the valve body, and the L shaped location leg and the valve body of valve plug are slip movingly, the inside surface of valve plug and the upper surface of valve body are and closely cooperate, reverse checkvalve is sealed in the escape pipe of gas meter, flow meter, so, when bleed pressure reduces, reverse checkvalve is opened in the same old way flexibly, tight closing, therefore, the reliability height; Reverse checkvalve and gas meter, flow meter escape pipe adopt the tackifier sealing to glued joint, good airproof performance, and corrosion-resistant, anti-fatigue performance is good, and manufacturing process is easy, owing to adopt injection mo(u)lding, with low cost.
Description of drawings
Fig. 1 is the structural representation of the utility model gas-robbery resistence gas meter, flow meter.
Fig. 2 is the structural representation of the utility model gas-robbery resistence gas meter, flow meter reverse checkvalve.
Fig. 3 is the valve body structure synoptic diagram of the utility model gas-robbery resistence gas meter, flow meter reverse checkvalve.
Fig. 4 is the cut-open view along I-I line among Fig. 3.
Fig. 5 is the valve body structure left view of the utility model gas-robbery resistence gas meter, flow meter reverse checkvalve.
Fig. 6 is the valve plug configurations synoptic diagram of the utility model gas-robbery resistence gas meter, flow meter reverse checkvalve.
Fig. 7 is the left view of the valve plug configurations of the utility model gas-robbery resistence gas meter, flow meter reverse checkvalve.
Fig. 8 is Fig. 1 the utility model gas-robbery resistence gas meter, flow meter reverse checkvalve opening partial sectional view.
Embodiment
Face specifies as follows with embodiment to structure of the present utility model and effect in conjunction with the accompanying drawings:
Fig. 1 shows the structural representation that adopts the utility model gas-robbery resistence gas meter, flow meter.It comprises shell 1, draft tube 2, escape pipe 3, movement 4, and draft tube 2 is joined with the source of the gas pipeline, and the escape pipe 3 that has reverse checkvalve joins with the pipeline that is connected to gas kitchen ranges.Shown in Fig. 2～7, described reverse checkvalve is made of valve body 7 and valve plug 10 that is enclosed within circular board-like its inside surface 8 intrinsic L type location legs 9 in the valve body 7 that circular its inboard has step 6, described L type location leg 9 is with valve body 7 and is slidingly matched, can guarantee the reverse checkvalve flexible movements, the inside surface 8 of described valve plug 10 is with the step 6 of described valve body 7 inboards and closely cooperates, and is air tight when realizing the reverse checkvalve closed condition.When the client used, source of the gas was entered by the draft tube 2 of gas meter, flow meter, was sent by described escape pipe 3 then.Under the effect of source of the gas gaseous-pressure, make the valve plug 10 of the reverse checkvalve in the described escape pipe 3 open rapidly, the L types location leg 9 that described valve plug 10 inside surfaces 8 are intrinsic and the lower surface 11 of valve body 7 tightly catch on, and play position-limiting action; Meanwhile, promote movement 4 motions in the gas meter, flow meter, the volume that measurement chamber test constantlies in the movement 4 are discharged in its chambeies through escape pipe 3, and measurement result conversion one is delivered to counting assembly carries out stored counts and demonstrates the gas volume cumulative amount of the gas meter, flow meter of flowing through.When the client steals gas, deliberately the escape pipe 3 with described gas meter, flow meter joins with the source of the gas pipeline, described draft tube 2 links to each other with the pipeline that has gas kitchen ranges, because the existence of reverse checkvalve in the escape pipe 3, under the effect of bleed pressure, the inside surface 8 of the valve plug 10 of described reverse checkvalve is in tight closed condition with the step 6 of valve body 7 inboards, and the combustion gas of source of the gas can't be supplied with the client and use, therefore, reached the purpose that prevents to steal gas.
Fig. 6 shows the valve plug configurations synoptic diagram of the utility model gas-robbery resistence gas meter, flow meter reverse checkvalve.Fig. 7 is the left diagrammatic sketch of the valve plug of reverse checkvalve, and this valve plug 10 is by board-like its inside surface 8 intrinsic three (also can be four or five) the L type location legs 9 of circle, and this L type location leg is sleeved on circular its inboard and has in the valve body 7 of step 6.When reverse checkvalve during in opening, shown in Fig. 8 gas-robbery resistence gas meter, flow meter reverse checkvalve opening partial cutaway diagrammatic sketch, described three L types location leg 9 tightly catches on the lower surface 11 of valve body 7, plays position-limiting action; The inside surface 8 of described valve plug 10 keeps certain clearance with the upper surface of valve body 7 12.Described reverse checkvalve is through chemical treatment, and the even adhesive coatings on valve body 7 surfaces of reverse checkvalve hang, then with described gas meter, flow meter in escape pipe 3 bonding, the location compresses, and solidifies, and glueds joint sealing; Adopt adhesive technology to have good airproof performance, corrosion-resistant, anti-tired old performance is good, simplified manufacturing technique.Fig. 3 shows the structural representation of the valve body of the utility model gas-robbery resistence gas meter, flow meter, and Fig. 4 shows the I-I line sectional view of the valve body of the utility model gas-robbery resistence gas meter, flow meter, and Fig. 5 is the left diagrammatic sketch of the valve body of the utility model gas-robbery resistence gas meter, flow meter.Valve body 7 arranged outside of the reverse checkvalve of described gas-robbery resistence gas meter, flow meter have annular seal groove 13, are used to install O shape O-ring seal in the sealing groove 13.
From above-mentioned explanation, be appreciated that gas-robbery resistence described in the utility model Gas meter, flow meter is not only simple in structure, and it is convenient to install, the non-return valve flexible movements, and And the dependability height can effectively be stopped using gas meter, flow meter to cause Steal the gas phenomenon.
Claims (4)
1. a gas-robbery resistence gas meter, flow meter comprises shell (1), draft tube (2), escape pipe (3), movement (4), it is characterized in that: a reverse checkvalve is set in the described escape pipe (3), and described reverse checkvalve is made of valve body (7) and valve plug (10) that is enclosed within circular board-like its inside surface (8) the intrinsic L shaped location leg (9) in the valve body (7) that circular its inboard has step (6); This L shaped location leg (9) and valve body (7) are and are slidingly matched, and the inboard step (6) of the inside surface (8) of valve plug (10) and valve body (7) is and closely cooperates.
2. gas-robbery resistence gas meter, flow meter as claimed in claim 1, it is characterized in that: described reverse checkvalve is when opening, intrinsic 3～5 the L shaped location legs of valve plug (10) inside surface (8) and valve body (7) lower surface (11) spacing linking keep certain clearance between valve plug (10) inside surface (8) and valve body (7) upper surface (12).
3. the gas-robbery resistence gas meter, flow meter described in claim 1 or claim 2, it is characterized in that: described reverse checkvalve fluid sealant is connected in the escape pipe (3) of described gas-robbery resistence gas meter, flow meter.
4. as any described gas-robbery resistence gas meter, flow meter in the claim 1 to 3, it is characterized in that: (7) Wai Ce Let are equipped with annular seal groove (13) to the valve body of described reverse checkvalve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520026135 CN2854521Y (en) | 2005-06-15 | 2005-06-15 | Anti-theft gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520026135 CN2854521Y (en) | 2005-06-15 | 2005-06-15 | Anti-theft gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2854521Y true CN2854521Y (en) | 2007-01-03 |
Family
ID=37581157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520026135 Expired - Fee Related CN2854521Y (en) | 2005-06-15 | 2005-06-15 | Anti-theft gas meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2854521Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840298A (en) * | 2017-01-22 | 2017-06-13 | 浙江蓝宝石仪表科技有限公司 | A kind of anti-reverse outlet duct structures |
-
2005
- 2005-06-15 CN CN 200520026135 patent/CN2854521Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840298A (en) * | 2017-01-22 | 2017-06-13 | 浙江蓝宝石仪表科技有限公司 | A kind of anti-reverse outlet duct structures |
| CN106840298B (en) * | 2017-01-22 | 2023-08-18 | 浙江蓝宝石仪表科技有限公司 | Anti-reverse air outlet pipe structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zheng Jiansheng Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |