CN2360693Y - Special control valve for combustible gas - Google Patents
Special control valve for combustible gas Download PDFInfo
- Publication number
- CN2360693Y CN2360693Y CN 98233117 CN98233117U CN2360693Y CN 2360693 Y CN2360693 Y CN 2360693Y CN 98233117 CN98233117 CN 98233117 CN 98233117 U CN98233117 U CN 98233117U CN 2360693 Y CN2360693 Y CN 2360693Y
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- Prior art keywords
- valve
- gas
- utility
- model
- control valve
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- Expired - Fee Related
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- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model relates to a control valve special for combustible gas. A driving nut pushes a valve rod to open or close a gas inlet by the rotation of a miniature motor through a speed change mechanism, and the opening or the closure of the valve is accomplished. The utility model adopts bellows seal to cause combustible gas, the motor and other moving components to be isolated. Therefore, the utility model can prevent fires caused by gas leakage or harmful impurities in gas polluting and corroding driving components. The utility model ensures the safety and the reliability of a valve body in use. When the valve is closed, the driving power is small, and the sealing performance is favorable. The valve body adopts a Y-shaped structure, which can increase gas flow and reduce pressure loss. The utility model is suitable for controlling gas in various pipelines.
Description
The utility model belongs to field of mechanical technique, further relates to a kind of control valve of inflammable gas duct arrangement.
The design of gas control valve commonly used has defective in the gas pipeline in sealing, the shortcoming that contaminating impurity in gas leak and the gas is arranged or corrode driving mechanism, and there is poor sealing performance in great majority, complex structure, problems such as power consumption is big have brought inconvenience for actual the use.Though some considers sealing, the resistance to deformation moment of its seal arrangement is big, moves dumbly, and the transmission time that needs is long, and power requirements is big.
It is a kind of simple in structure that the purpose of this utility model is to provide, good seal performance, and flexible movements are reliable, the control valve of power saving safety.
To achieve these goals, solution of the present utility model is: the valve body of inflammable gas control valve special is a Y shape, is provided with V-type groove and partition in the middle of suction port A and the air outlet B concentric, valve body, and partition is provided with ventilating hole and valve seat.The axis of the axis of ventilating hole and suction port A and air outlet B has angle.Be provided with bellows seal in the body of control mouthful C, valve rod and the transmission nut that has internal thread are housed in the Sealing, an end of valve rod and transmission nut is sleeved on together, and the other end of transmission nut is a step axle.Maximum on a step axle outer round platform is pressed on the cover clamp.Driven gear with the micro-control motor interlock is housed on the step axle.
The utility model will be further described below in conjunction with accompanying drawing.
Fig. 1 is the utility model overall structure schematic representation.
Fig. 2 is the utility model valve body structure schematic representation.
Fig. 3 is the structural representation of the utility model bellows seal.
Fig. 4 is the structural representation of the utility model transmission nut.
As shown in Figure 1, valve body 1 is a pipe, and two ends have connecting thread, apart from suction port A 2/3 place a V font groove is arranged at valve body 1.From suction port A to being provided with a partition the B of air outlet, suction port A and air outlet B are separated, this partition has ventilating hole 12, the periphery that cuts off upper vent 12 is a valve seat 11, the shaft axis of the shaft axis of ventilating hole 12 and suction port A and air outlet B is at 45～75 ° angle, and tilt towards the direction of suction port A.A control mouthful C is a pipe (referring to Fig. 2), and the top has an annular seal groove.Control mouthful C and suction port A intersect and communicate, and also can communicate with air outlet B by ventilating hole 12.Bellows seal 3 is cylinder bellowss that a rubber makes, the top is connected with O-ring seals 15, and the bottom is a flat rubber gasket 14, and valve rod 2 is T shape structure cylinders, be inverted also and once vulcanize in bellows seal 3, the screw thread of large screw pitch is arranged on this valve rod 2.Bellows seal 3 bottom covers are on the ventilating hole 12 of valve seat 11, and the O-ring seals 15 on top is pressed in the annular seal groove of control mouthful C.One end of transmission nut 4 is pipes 5 that have internal thread, pass the positioning hole at cover clamp 10 centers, the other end is a step axle, an outer round platform 17 of step axle maximum is pressed on the cover clamp 10, be used to prevent that transmission nut 4 from moving down, a driven gear 9 is equipped with at the middle part 19 of step axle, the little axle head 18 of a projection is arranged at the top, and a shaft shoulder that prevents that transmission nut 4 from moving down arranged, little axle head 18 is through in the positioning hole of electric machine support 7, with center positioning hole common guarantee on the cover clamp 10 shaft axis of transmission nut 4 overlap with the shaft axis of bellows seal 3.The internal thread 16 of transmission nut 4 and the outside thread engagement driving on the valve rod 2, control valve rod 2 moves up and down, and compress bellows Sealing 3 opening and closing valves.Cover clamp 10 is lids that there is positioning through hole at a center, is pressed on the O-ring seals 15 of bellows seal 3, and the effect that play and compress the sealing, prevents gas leak, and have the centering effect simultaneously.Electric machine support 7 is door-shaped frame structures, is fixed with motor above, and has a positioning hole that links to each other with the little axle head 18 of transmission nut 4.A driving gear 8 is housed on the output shaft of micro-control motor 6,, power is transmitted to subordinate, finish the opening and closing action of valve with driven gear 9 engagements.
As shown in Figure 3, bellows seal 3 is cylinder bellowss that a rubber makes, and Xiang Duan is connected with O-ring seals 15, the bottom is a flat rubber gasket 14, valve rod 2 is T shape structure cylinders, is inverted also and once vulcanizes in bellows seal 3, and the screw thread of large screw pitch is arranged on this valve rod 2.
As shown in Figure 4, one end of transmission nut 4 is pipes that have internal thread 16, the other end is a step axle, an outer round platform 17 of step axle maximum can be used for preventing that transmission nut 4 from moving down, the driven gear with micro-control motor 6 interlocks can be equipped with in the middle part 19 of step axle, the little axle head 18 of a projection is arranged at the top, and a shaft shoulder that prevents that transmission nut 4 from moving down is arranged.
This inflammable gas control valve special is mainly used in the automatic control of pipeline gas, it and the supporting use of IC-card gas meter.
The utility model adopts sylphon seal can reach three effects in sealing: the first, at first Be used for cutting off contacting of air inlet and gas outlet, play the effect that opens or closes valve; The second, Be to prevent leaking of fuel gas and in the fire that may cause and the gas objectionable impurities to motion section The pollution of part and corrosion; The 3rd, under the prerequisite that guarantees first function, guarantee that the seal can Flexibly flexible, and do not affect the quick opening and closing of valve, so the seal is adopted in design With the form of bellows. Valve rod and rubber bellows seal body are the time processing moulding, this ripple Seal of tube spare namely can well play sealing function, and good axial stretching deformation performance is arranged again.
Claims (5)
1. inflammable gas control valve special, it comprises valve body, valve seat, valve rod, Sealing, it is characterized in that: described valve body (1) is a pipe Y type, suction port A and air outlet B coaxial inner conductor, be provided with V-type groove and partition in the middle of the valve body (1), partition is provided with ventilating hole (12) and valve seat (11), the axis of the axis of ventilating hole (12) and suction port A and air outlet B has angle, be provided with bellows seal (3) in the body of control mouthful C, valve rod (2) is housed in the Sealing (3) and has the transmission nut (4) of internal thread, one end of valve rod (2) and transmission nut (4) is sleeved on together, the other end of transmission nut (4) is a step axle, an outer round platform (17) maximum on the step axle is pressed on the cover clamp (10), and the driven gear (9) with micro-control motor (6) interlock is housed on the step axle.
2. inflammable gas control valve special according to claim 1 is characterized in that: described V-type groove is located at valve body apart from about 2/3 place of suction port A.
3. inflammable gas control valve special according to claim 1 is characterized in that: the shaft axis of the shaft axis of ventilating hole (12) and suction port A and air outlet B is at 45～75 ° angle, and tilts towards the direction of suction port A.
4. inflammable gas control valve special according to claim 1 is characterized in that: Sealing adopts the bellows form, and valve rod (2) is once vulcanized in bellows seal.
5. inflammable gas control valve special according to claim 1 is characterized in that: described valve rod (2) adopts the coarse thread suit with transmission nut (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98233117 CN2360693Y (en) | 1998-11-03 | 1998-11-03 | Special control valve for combustible gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98233117 CN2360693Y (en) | 1998-11-03 | 1998-11-03 | Special control valve for combustible gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2360693Y true CN2360693Y (en) | 2000-01-26 |
Family
ID=33981922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98233117 Expired - Fee Related CN2360693Y (en) | 1998-11-03 | 1998-11-03 | Special control valve for combustible gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2360693Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100343561C (en) * | 2004-04-14 | 2007-10-17 | 郭跃进 | Automatic manipulator gear for gas pipeline cut-off valve |
| WO2012032243A1 (en) | 2010-09-07 | 2012-03-15 | L'air Liquide,Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Valve for a gas cylinder and corresponding cylinder and filling method |
| WO2019037550A1 (en) * | 2017-08-22 | 2019-02-28 | 京东方科技集团股份有限公司 | Suction apparatus and suction method |
-
1998
- 1998-11-03 CN CN 98233117 patent/CN2360693Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100343561C (en) * | 2004-04-14 | 2007-10-17 | 郭跃进 | Automatic manipulator gear for gas pipeline cut-off valve |
| WO2012032243A1 (en) | 2010-09-07 | 2012-03-15 | L'air Liquide,Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Valve for a gas cylinder and corresponding cylinder and filling method |
| WO2019037550A1 (en) * | 2017-08-22 | 2019-02-28 | 京东方科技集团股份有限公司 | Suction apparatus and suction method |
| CN109427640A (en) * | 2017-08-22 | 2019-03-05 | 京东方科技集团股份有限公司 | Adsorbent equipment and adsorption method |
| CN109427640B (en) * | 2017-08-22 | 2020-08-04 | 京东方科技集团股份有限公司 | Adsorption device and adsorption method |
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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 |