CN2713262Y - Gas valve automatic closing device - Google Patents
Gas valve automatic closing device Download PDFInfo
- Publication number
- CN2713262Y CN2713262Y CN 200420062381 CN200420062381U CN2713262Y CN 2713262 Y CN2713262 Y CN 2713262Y CN 200420062381 CN200420062381 CN 200420062381 CN 200420062381 U CN200420062381 U CN 200420062381U CN 2713262 Y CN2713262 Y CN 2713262Y
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- motor
- gas
- power
- control circuit
- power supply
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- Expired - Fee Related
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- Electrically Driven Valve-Operating Means (AREA)
- Safety Valves (AREA)
Abstract
The utility model relates to a protection device of the gas leakage defection, in particular to a gas valve automatic closing device. The gas valve automatic closing device consists of a housing fixed on the gas pipeline and a gas concentration monitoring-alarming device. The housing is provided in the electric machine, and the output rotating shaft of the electric machine is connected with the rotating shaft of the valve core of the gas pipeline by a connector. The gas concentration monitoring-alarming device has an output end of the control supply, and the output end of the control supply is connected with the supply line of the control circuit of the electric machine by a power supply plug. The utility model has the advantages of simple structure, easy installation, high security and reliable protective action.
Description
Technical field
The utility model relates to a kind of protective gear of gas leakage fault, specifically is a kind of gas valve self-closing device.
Background technique
The automatic safety device of existing gas leakage fault, the form that generally adopts alarm to drive the closed electromagnetic valve source of the gas is taken precautions against gas leakage.There is following defective in this mode: 1, when gas leakage, solenoid valve can not disposablely be cut off the electricity supply, but logical state when disconnected when being in does not eliminate danger fully; 2, solenoid valve directly is hinged with on gas pipeline, produces short circuiting arc in case its coil insulation is aging, will cause the danger of gas explosion; 3, the solenoid valve insulation damages may make metallic conduit charged and produce risk of electric shock; 4, the gas channel of solenoid valve because of the impurity that contains in the gas stops up, has reduced its working life easily; 5, existing gas pipeline is transformed, need be dismantled pipeline when installing solenoid valve additional, thereby installation is very inconvenient.
Summary of the invention
Technical problem to be solved in the utility model is, a kind of gas valve self-closing device of simple in structure, easy for installation, safe, protection reliable in action is provided.
Gas valve self-closing device of the present utility model comprises a housing that is fixed on the gas pipeline, and a motor is installed in housing, and the output revolving shaft of motor is connected by the valve core shaft of the gas valve on joint and the gas pipeline; This device also includes a gas concentration monitoring alarm, and this gas concentration monitoring alarm has a control power output end, and this control power output end is connected with the control circuit power line of above-mentioned motor by power plug.
Housing in above-mentioned motor output revolving shaft one side also is equipped with a limitation travel switch, this limitation travel switch is a normally closed switch, it is connected in the control circuit of motor, the output revolving shaft side of motor is provided with outstanding tappet simultaneously, the position of tappet and height are corresponding with the position of limitation travel switch, when the motor output revolving shaft went to special angle (the gas valve spool is in the closed position), tappet can press limitation travel switch and make its disconnection, powered-down; A reset switch also is installed on housing, and this reset switch is a normal open switch, and it also is connected in the control circuit of motor.
The control power output end of above-mentioned gas concentration monitoring alarm has the three-way power output polar, it is connected with three control circuit power lines by power plug, these three control circuit power lines are respectively normal power supply line, emergency starting power line and reset power line, normal power supply line directly is connected with the power supply input utmost point A of motor, the emergency starting power line is connected with the power supply input utmost point B of motor through limitation travel switch, and the reset power line then is connected with the power supply input utmost point B of motor through reset switch.
The utility model is simple in structure, and it does not destroy gas pipeline and is directly installed on the gas valve, and installation process is very easy; Because its electricity consumption part is separated with gas pipeline, has both eliminated the hidden danger of gas explosion, has also reduced the charged possibility of metallic conduit, has improved the safety in utilization of whole device greatly; Because this device can be directly applied for common gas valve (as ball valve), thereby compare with the protective gear that uses solenoid valve, it is reliable, fault is few, long service life.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment when being in normal state;
Fig. 2 is the partial structurtes schematic representation of the utility model embodiment motor output revolving shaft and limitation travel switch part when being in gas leakage and exceeding standard;
Fig. 3 is the wiring diagram of the utility model embodiment's control circuit.
Embodiment
As shown in Figure 1, the housing 1 of the utility model gas valve self-closing device is fixed on the gas pipeline 14 by holding element 15, and motor 2 is installed in the housing, and the output revolving shaft 3 of motor rotates by joint 4 and the valve core shaft 6 that drives gas valve 5; The control power output end 8 of external gas concentration monitoring alarm 7 is connected with the control circuit power line 10 of motor by power plug 9.Side at motor output revolving shaft 3 has a limitation travel switch 11, this limitation travel switch is a normally closed switch, it is connected in the control circuit of motor, when motor output revolving shaft 3 drives valve core shafts 6 and turns to the position that gas valve 5 closes, tappet 12 on the motor output revolving shaft can press limitation travel switch and make its disconnection (as Fig. 2), powered-down makes the motor stall; A reset switch 13 also is installed on housing, and this reset switch is a normal open switch, and it also is connected in the control circuit of motor, when pressing this reset switch, can connect another road power supply, motor is rotated, with valve open.
It is RB-1 type fuel gas alarm that gas concentration monitoring alarm 7 of the present utility model can adopt the model of being produced by Zhenjiang Anbao Electronics Co., Ltd., this alarm is exportable three-way power signal when gas concentration exceeds standard, and it is connected with three control circuit power lines by power plug.As shown in Figure 3, these three control circuit power lines are respectively normal power supply line 16, emergency starting power line 17 and reset power line 18, normal power supply line directly is connected with the power supply input utmost point A of motor 2, the emergency starting power line is connected with the power supply input utmost point B of motor through limitation travel switch 11, and the reset power line then is connected with the power supply input utmost point B of motor through reset switch 13.
The utility model embodiment's working procedure is: when gas leakage takes place, the indoor fuel gas concentration over-standard, trigger gas concentration monitoring alarm 7, to motor 2 out-put supply signals, starting electrical machinery rotates, close gas valve 5, when arriving closed position, limitation travel switch is disconnected, and can't form the loop between the power supply input utmost point A of motor and the B, the motor stall is maintained in its closed position gas valve; After leakage failure is removed, press reset switch 13, make the motor power input utmost point through 18 conductings again of reset power line, starting electrical machinery reopens gas valve.
Claims (3)
1, a kind of gas valve self-closing device, it is characterized in that: it comprises a housing (1) that is fixed on the gas pipeline, a motor (2) is installed in housing, and the output revolving shaft of motor (3) is connected by the valve core shaft (6) of the gas valve (5) on joint (4) and the gas pipeline; This device also includes a gas concentration monitoring alarm (7), this gas concentration monitoring alarm has a control power output end (8), and this control power output end is connected with the control circuit power line (10) of above-mentioned motor by power plug (9).
2, gas valve self-closing device according to claim 1, it is characterized in that: the housing in motor output revolving shaft one side also is equipped with a limitation travel switch (11), this limitation travel switch is a normally closed switch, it is connected in the control circuit of motor, the output revolving shaft side of motor is provided with outstanding tappet (12) simultaneously, and the position of tappet and height are corresponding with the position of limitation travel switch; A reset switch (13) also is installed on housing, and this reset switch is a normal open switch, and it also is connected in the control circuit of motor.
3, gas valve self-closing device according to claim 2, it is characterized in that: the control power output end of gas concentration monitoring alarm (7) has the three-way power output polar, it is connected with three control circuit power lines by power plug (9), these three control circuit power lines are respectively normal power supply lines (16), emergency starting power line (17) and reset power line (18), normal power supply line directly is connected with the power supply input utmost point A of motor (2), the emergency starting power line is connected with the power supply input utmost point B of motor through limitation travel switch (11), and the reset power line then passes through reset switch (13) and is connected with the power supply input utmost point B of motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420062381 CN2713262Y (en) | 2004-07-03 | 2004-07-03 | Gas valve automatic closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420062381 CN2713262Y (en) | 2004-07-03 | 2004-07-03 | Gas valve automatic closing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2713262Y true CN2713262Y (en) | 2005-07-27 |
Family
ID=34873166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420062381 Expired - Fee Related CN2713262Y (en) | 2004-07-03 | 2004-07-03 | Gas valve automatic closing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2713262Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048081A (en) * | 2014-05-29 | 2014-09-17 | 湖北三江航天红峰控制有限公司 | Natural gas safety valve |
| CN104500964A (en) * | 2010-11-19 | 2015-04-08 | 李金友 | Gas safety protection device of gas cylinder |
| CN105090757A (en) * | 2015-09-17 | 2015-11-25 | 成都千易信息技术有限公司 | Oil and gas pipeline leakage monitoring system |
| CN105090756A (en) * | 2015-09-17 | 2015-11-25 | 成都千易信息技术有限公司 | Oil-gas pipeline leakage processing system |
| CN105114818A (en) * | 2015-09-17 | 2015-12-02 | 成都千易信息技术有限公司 | Leakage early-warning system for oil-gas pipeline |
-
2004
- 2004-07-03 CN CN 200420062381 patent/CN2713262Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500964A (en) * | 2010-11-19 | 2015-04-08 | 李金友 | Gas safety protection device of gas cylinder |
| CN104500964B (en) * | 2010-11-19 | 2017-02-01 | 李金友 | Gas safety protection device of gas cylinder |
| CN104048081A (en) * | 2014-05-29 | 2014-09-17 | 湖北三江航天红峰控制有限公司 | Natural gas safety valve |
| CN104048081B (en) * | 2014-05-29 | 2016-04-13 | 湖北三江航天红峰控制有限公司 | A kind of rock gas safety valve |
| CN105090757A (en) * | 2015-09-17 | 2015-11-25 | 成都千易信息技术有限公司 | Oil and gas pipeline leakage monitoring system |
| CN105090756A (en) * | 2015-09-17 | 2015-11-25 | 成都千易信息技术有限公司 | Oil-gas pipeline leakage processing system |
| CN105114818A (en) * | 2015-09-17 | 2015-12-02 | 成都千易信息技术有限公司 | Leakage early-warning system for oil-gas pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |