CN101994868B - Valve - Google Patents
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- CN101994868B CN101994868B CN2010105649937A CN201010564993A CN101994868B CN 101994868 B CN101994868 B CN 101994868B CN 2010105649937 A CN2010105649937 A CN 2010105649937A CN 201010564993 A CN201010564993 A CN 201010564993A CN 101994868 B CN101994868 B CN 101994868B
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- valve
- shell
- main valve
- piston
- air outlet
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Abstract
The invention relates to a mechanical fitting, in particular to a valve for opening and closing a flammable and explosive gas medium steel cylinder. The valve comprises a mechanism which is arranged on a shell and is used for connecting or closing a gas source inlet and a gas outlet. The invention adopts the technical scheme, so the safety performance is improved, the service life is prolonged, and the output efficacy of the gas medium is improved.
Description
Technical field
The present invention relates to a kind of mechanical fitting, especially relate to a kind of valve that opens and closes flammable explosive gas medium steel cylinder.
Background technique
At present, the pressurized gas cylinder valve that generally uses of existing technology mainly adopts manually operated valve or solenoid valve.Manually operated valve exists opening speed shortcoming slowly, very easily causes security incident and solenoid valve is used to open and close flammable explosive gas medium steel cylinder.
Summary of the invention
Technical problem to be solved by this invention provides a kind of valve that opens and closes flammable explosive gas medium steel cylinder that is applicable to that overcomes the existing technology defective.The technological scheme that the present invention solves its technical problem employing is: a kind of valve, and it comprises shell, shell is provided with the mechanism that is communicated with or seals source of the gas mouth and air outlet; The mechanism of connection or sealing source of the gas mouth and air outlet is that shell is provided with source of the gas mouth, air outlet, and an end of shell is provided with piston cavity and connects driving casing, is provided with piston in the piston cavity; Be provided with the post hole in the shell, the post hole is communicated with the air outlet, and the other end of shell is provided with weighing apparatus and presses the chamber and connect gland; Weighing apparatus presses the chamber to be communicated with the source of the gas mouth; Weighing apparatus is pressed in the chamber and is provided with main valve, and the two ends of main spring act on respectively on gland and the main valve, are provided with end cap, secondary valve in the main valve; The two ends of auxiliary spring act on respectively on end cap and the secondary valve; Reducing stick harness on the piston is provided with bulge loop and stretches in the post hole, and the secondary valve in the through hole conflict main valve of thin footpath one end of reducing stick harness on main valve, shell are provided with and drive mouth and one of which end connection piston cavity.Technical problem to be solved by this invention also can further be solved through following technological scheme: the driving casing thimble that is threaded, the top conflict piston of thimble.Weighing apparatus among the present invention presses the chamber to be meant the three dimensional space that sealing surface constituted by the counterbore of placing gland and main valve in shell one end and gland and main valve sealing post hole.Piston cavity among the present invention connects driving casing, shell and connects and be provided with end cap in gland and the main valve and all can adopt and be threaded.The present invention has improved the output of Safety performance, working life and gas medium and has renderd a service owing to adopt technique scheme.
Description of drawings
Below in conjunction with accompanying drawing and specific embodiment of the present invention the present invention is described in further detail:
Fig. 1 is structural representation master sectional view of the present invention (being the C-C sectional view of Fig. 2).
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
Embodiment
With reference to Fig. 1, Fig. 2, Fig. 3.Shell 12 of the present invention is provided with source of the gas mouth 9, air outlet 10, and an end of shell 12 is provided with piston cavity 13 and connects driving casing 14, is provided with piston 3 in the piston cavity 13; Be provided with post hole 15 in the shell 12,15 connection air outlets 10, post hole, the other end of shell 12 is provided with weighing apparatus and presses chamber 16 and connect gland 17; Weigh and press chamber 16 to be communicated with source of the gas mouths 9, weighing apparatus is pressed in the chamber 16 and is provided with main valve 5, and the two ends of main spring 7 act on respectively on gland 17 and the main valve 5; Be provided with end cap 18, secondary valve 6 in the main valve 5; The two ends of auxiliary spring 8 act on respectively on end cap 18 and the secondary valve 6, and the reducing stick harness 4 on the piston 3 is provided with bulge loop 19 and stretches in the post hole 15, the secondary valve 6 in the through hole 20 conflict main valves 5 of thin footpath one end of reducing stick harness 4 on main valve 5; Shell 12 is provided with and drives mouth 11 and one of which end connection piston cavity 13; Driving casing 14 thimble 2 that is threaded, nut 1 can become flexible or lock thimble 2, the top conflict piston 3 of thimble 2.
Embodiment 1: with reference to Fig. 1, Fig. 2, Fig. 3.Fig. 1 is main valve seals main valve under sealing post hole and air outlet under the effect of main spring and the effect of secondary valve at auxiliary spring a state.External drive gas pressure source (not providing in the accompanying drawing) is inserted the driving mouth; Make to drive air pressure get into the plane that drives piston cavity that mouth is communicated with and the top that acts on the nearly thimble of piston on the promotion piston in piston cavity left in the moving linearly; The active force that overcomes auxiliary spring makes the thin footpath end face of reducing stick harness promote secondary valve; Make secondary valve produce a displacement that is enough to open main valve; Bulge loop on the thin footpath of reducing stick harness promotes to be located at weighing apparatus and presses main valve in the chamber to produce certain displacement to make main valve break away from the post hole, can press chamber, post hole, air outlet export gas medium through source of the gas mouth, weighing apparatus thereupon.Cut off driving air pressure, can under the effect of main spring and auxiliary spring, seal source of the gas mouth, air outlet.Present embodiment is provided with the two-stage weighing apparatus and presses, promptly between secondary valve and main valve, is provided with earlier one-level weighing apparatus pressure; Another grade weighing apparatus then is set between main valve and post hole presses; So that the pressure of main valve both sides tends to balance, reduce the running resistance of piston, improve the output of gas medium and render a service.
Embodiment 2: with reference to Fig. 1, Fig. 2.Present embodiment on embodiment 1 basis, the thimble that on driving casing, has been threaded, in case take place to drive the situation of air pressure disappearance, (unclamping nut) turns thimble with mobile piston, also can be communicated with or seal source of the gas mouth, air outlet.
Claims (2)
1. valve, it comprises shell, it is characterized in that: shell is provided with and is communicated with or the mechanism of sealing source of the gas mouth and air outlet; The mechanism of connection or sealing source of the gas mouth and air outlet is that shell is provided with source of the gas mouth, air outlet, and an end of shell is provided with piston cavity and connects driving casing, is provided with piston in the piston cavity; Be provided with the post hole in the shell, the post hole is communicated with the air outlet, and the other end of shell is provided with weighing apparatus and presses the chamber and connect gland; Weighing apparatus presses the chamber to be communicated with the source of the gas mouth; Weighing apparatus is pressed in the chamber and is provided with main valve, and the two ends of main spring act on respectively on gland and the main valve, are provided with end cap, secondary valve in the main valve; The two ends of auxiliary spring act on respectively on end cap and the secondary valve; Reducing stick harness on the piston is provided with bulge loop and stretches in the post hole, and the secondary valve in the through hole conflict main valve of thin footpath one end of reducing stick harness on main valve, shell are provided with and drive mouth and one of which end connection piston cavity.
2. a kind of valve according to claim 1 is characterized in that: the driving casing thimble that is threaded, the top conflict piston of thimble.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105649937A CN101994868B (en) | 2010-11-26 | 2010-11-26 | Valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105649937A CN101994868B (en) | 2010-11-26 | 2010-11-26 | Valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101994868A CN101994868A (en) | 2011-03-30 |
| CN101994868B true CN101994868B (en) | 2012-05-02 |
Family
ID=43785407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105649937A Active CN101994868B (en) | 2010-11-26 | 2010-11-26 | Valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101994868B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2115430U (en) * | 1991-11-29 | 1992-09-09 | 上海东海阀门厂 | Lpg cylinder valve |
| US5172722A (en) * | 1990-09-17 | 1992-12-22 | Motoyama Eng. Works, Ltd. | Stop valve for a vacuum apparatus |
| CN1341818A (en) * | 2000-09-07 | 2002-03-27 | 速睦喜股份有限公司 | Stable exhaust valve |
| CN2517920Y (en) * | 2001-12-03 | 2002-10-23 | 中国人民解放军空军株洲航空四站装备修理厂 | Remote control valve |
| CN201265694Y (en) * | 2008-09-11 | 2009-07-01 | 江苏星A包装机械集团有限公司 | Pneumatic liquid feeding valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05164298A (en) * | 1991-12-10 | 1993-06-29 | Mitsubishi Heavy Ind Ltd | High pressure valve |
-
2010
- 2010-11-26 CN CN2010105649937A patent/CN101994868B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5172722A (en) * | 1990-09-17 | 1992-12-22 | Motoyama Eng. Works, Ltd. | Stop valve for a vacuum apparatus |
| CN2115430U (en) * | 1991-11-29 | 1992-09-09 | 上海东海阀门厂 | Lpg cylinder valve |
| CN1341818A (en) * | 2000-09-07 | 2002-03-27 | 速睦喜股份有限公司 | Stable exhaust valve |
| CN2517920Y (en) * | 2001-12-03 | 2002-10-23 | 中国人民解放军空军株洲航空四站装备修理厂 | Remote control valve |
| CN201265694Y (en) * | 2008-09-11 | 2009-07-01 | 江苏星A包装机械集团有限公司 | Pneumatic liquid feeding valve |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平5-164298A 1993.06.29 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101994868A (en) | 2011-03-30 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |