CN2878842Y - Anti-backing and gas intrusion prevention control valve for intelligent meter - Google Patents
Anti-backing and gas intrusion prevention control valve for intelligent meter Download PDFInfo
- Publication number
- CN2878842Y CN2878842Y CN 200620090022 CN200620090022U CN2878842Y CN 2878842 Y CN2878842 Y CN 2878842Y CN 200620090022 CN200620090022 CN 200620090022 CN 200620090022 U CN200620090022 U CN 200620090022U CN 2878842 Y CN2878842 Y CN 2878842Y
- Authority
- CN
- China
- Prior art keywords
- valve
- gas
- valve body
- intelligent meter
- fuel gas
- 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.)
- Expired - Fee Related
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Abstract
A control valve provided with an intelligent meter to guard against the back connection gas theft, solves the problem of bad theft guard performance of the existing intelligent meter control valves; this utility model has a valve body on which a gas inlet and a gas outlet are arranged, a valve core composed of a motor, a transmission device and a valve spindle is installed inside the valve body, a sealing plate matching the inner bore of the gas outlet is mounted on the valve spindle, the specialties are that a elastic valve plate matching the outer hole of the gas outlet is positioned on the valve body, and the elastic valve plate will prevent the back flow of the fuel gas; the advantages of this utility model are: the elastic valve plate matching the outer hole of the gas outlet positioned on the valve body disenables the back flow of the fuel gas, when the intelligent meter is connected in positive direction, the elastic valve plate will open under the fuel gas pressure, thus normal use of the meter is not affected, when the intelligent meter is connected in negative direction, the elastic valve plate will close under the fuel gas pressure, therefore, the fuel gas back flow will be prevented and the purpose of negative connection gas theft prevention is realized, the valve structure is simple and the performance is reliable.
Description
Technical field
The utility model belongs to a kind of valve, and particularly a kind of intelligence of using in the combustion gas terminal is shown anti-reverse robber's gas control valve.
Background technique
Along with expanding economy and progress of science and technology, the combustion gas terminal list has more and more adopted various intelligence tables, as IC-card table, teletransmission intelligence table etc.The intelligence table need not be tabled look-up, and for operating unit has saved great amount of manpower, also for the user has reduced trouble, has represented the developing direction of combustion gas terminal list.Existing intelligence table is what to be grown up on the basis of general gas table, it comprises the parts such as shell, air input joint, air outlet adapter, counter and movement that the general gas table has, and has increased sensor, controller and control valve on the basis of general gas table.Sensor and counter are assembled together, and control valve is connected with air input joint, the information of sensor count pick up device, when reaching the numerical value of setting, sensor is given controller output signal, and controller outputs signal to control valve again, close gas-entered passageway by control valve, realize intelligent control.Existing intelligence table control valve mainly is made of shell, spool and sealing gasket, suction port and air outlet are arranged on the shell, spool is installed in the enclosure, described spool is made of motor, transmission device and valve rod, valve rod is connected with transmission device, sealing gasket is installed on the valve rod, and matches with the air outlet on the shell.Receive the signal of controller when control valve after, motor starting drives stem movement by transmission device, closes the air outlet on the shell, cuts off source of the gas.The subject matter that this intelligence table control valve exists is, do not possess the reversal connection of preventing and steal the function of gas, control valve is in open mode all the time before the combustion gas numerical value that does not reach user's purchase, the intelligence table is in the air feed state, at this moment, if the user is with the suction port and the air outlet reversal connection of intelligence table, combustion gas still can output from table.And the operator does not table look-up usually to intelligence table user, steals the gas behavior and is difficult to find, thereby cause enormous economic loss to the operator.
Summary of the invention
The technical problems to be solved in the utility model is, overcomes the problem of the theftproof performance difference that existing intelligence table control valve exists, and provides a kind of intelligence table anti-reverse robber's gas control valve.
The utility model has a valve body, suction port and air outlet are arranged on the valve body, the spool that is made of motor, transmission device and valve rod is housed in valve body, the sealing gasket that internal orifice with the air outlet matches is housed on valve rod, its special way is, the elastic valve plate that collar extension with the air outlet matches is housed on valve body, utilizes elastic valve plate to stop gas reflux, realize preventing that reversal connection from stealing the purpose of gas.
Advantage of the present utility model is, the elastic valve plate that the collar extension with the air outlet matches is set on valve body, makes the combustion gas can only forward flow, when the intelligence table is just connecing, elastic valve plate is opened under the effect of gaseous-pressure, does not influence the normal use of table, during the reversal connection of intelligence table, elastic valve plate is closed under the effect of gaseous-pressure, stop combustion gas oppositely to be flow backwards, realized preventing the purpose of reversal connection robber gas, and, simple in structure, reliable performance.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the plan view of Fig. 1.
Embodiment
As shown in drawings, the utility model has a valve body, and described valve body is made of shell 5 and end cap 2, and both are screwed together, so that the assembling of valve inner part; Suction port and air outlet are arranged on the valve body, and suction port is positioned on the shell 5, and the air outlet is positioned on the end cap 2, and seal ring 7 is housed on the suction port of shell 5, gas leakage when preventing to assemble, the normal use of influence table; The spool 6 that is made of motor, transmission device and valve rod 4 is housed in valve body, the sealing gasket 3 that the internal orifice with the air outlet matches is housed on valve rod 4; The elastic valve plate 1 that collar extension with the air outlet matches is housed on valve body, described elastic valve plate 1 is a sealing gasket, its upper end sticks with glue the outside in the valve body air outlet, also can fix with other modes, elastic valve plate 1 plays the effect that stops gas reflux, thereby realizes preventing the purpose of reversal connection robber gas.
Claims (1)
1, the anti-reverse robber's gas control valve of a kind of intelligence table, it has a valve body, suction port and air outlet are arranged on the valve body, the spool that is made of motor, transmission device and valve rod is housed in valve body, the sealing gasket that internal orifice with the air outlet matches is housed on valve rod, it is characterized in that, the elastic valve plate that the collar extension with the air outlet matches is housed on valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620090022 CN2878842Y (en) | 2006-03-23 | 2006-03-23 | Anti-backing and gas intrusion prevention control valve for intelligent meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620090022 CN2878842Y (en) | 2006-03-23 | 2006-03-23 | Anti-backing and gas intrusion prevention control valve for intelligent meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2878842Y true CN2878842Y (en) | 2007-03-14 |
Family
ID=37861257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620090022 Expired - Fee Related CN2878842Y (en) | 2006-03-23 | 2006-03-23 | Anti-backing and gas intrusion prevention control valve for intelligent meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2878842Y (en) |
-
2006
- 2006-03-23 CN CN 200620090022 patent/CN2878842Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070314 Termination date: 20100323 |