CN2399565Y - Liquefied gas safety valve - Google Patents
Liquefied gas safety valve Download PDFInfo
- Publication number
- CN2399565Y CN2399565Y CN 99256664 CN99256664U CN2399565Y CN 2399565 Y CN2399565 Y CN 2399565Y CN 99256664 CN99256664 CN 99256664 CN 99256664 U CN99256664 U CN 99256664U CN 2399565 Y CN2399565 Y CN 2399565Y
- Authority
- CN
- China
- Prior art keywords
- blind nut
- air valve
- valve
- valve seat
- holes
- 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
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model relates to a liquefied gas safety valve, which is characterized in that the air inlet end of a valve seat is provided with conical external threads, and the other end is provided with external threads used for connecting a blind nut of an air valve; the top part of the valve seat is provided with sealing holes; one side of the valve seat is provided with an air outlet interface with internal threads; the middle part of the valve seat is provided with holes of a sliding rod; sealing rings are sheathed into a cap of a sliding rod and are penetrated through central holes of the valve seat; the inner part of the sealing holes is filled with the sealing rings and lubricating oil which are pressed by a protective cover, and then, pressure springs are sheathed into the sealing rings for tightly screwing the blind nut; the lower end of the blind nut of an air valve is provided with internal threads, the upper end is provided with external threads, and the middle part is provided with holes; the lower end of a rotating handle of the air valve is provided with another blind nut connecting by internal threads; the middle part of the blind nut of an air valve is provided with a cylinder (13) which is penetrated through the central holes of a cover, and then, tightly press the blind nut of sliding rods.
Description
The utility model belongs to safety valve, particularly a kind of novel liquefied petroleum gas safety valve.
Existing LPG (liquefied petroleum gas) valve is to adopt the spiral potential difference to suppress outer blocking formula.This valve exists many shortcomings, as easily loosening in poor sealing performance, easy to wear, the transportation, because the switch dynamics is irregular, extremely difficult supporting with electronic control system, at the present behaviour in service of cylinder for liquefied gas, if there is not the supporting use of electronic safety system, artificial operation is difficult to reach the effect of energy-saving safe.
The purpose of this utility model is to provide a kind of good seal performance, safe, energy-conservation, convenient transportation, the novel liquefied petroleum gas safety valve of stifled outer traction working principle in adopting.
Technical solution of the present utility model is such, comprise by valve seat, pressure spring, the screw slide bar, the air valve blind nut, the air valve swing handle, sealing gasket, the valve seat inlet end has conical external screw thread, the other end has outside thread to connect the air valve blind nut, have closed hole on the top, one side has the internal thread interface of giving vent to anger, the center has sliding rod hole, seal ring is inserted on the slide bar cap, pass valve base center hole, put into seal ring and lubricant oil in the closed hole, compress with protecting cover, be inserted in pressure spring then and tighten blind nut, the blind nut lower end has internal thread, and the upper end has outside thread, the center drilling of lid, air valve swing handle lower end has internal thread and connects blind nut, and there is cylinder to pass to cover the blind nut that compresses behind the center hole on the slide bar centre.
The utility model has the advantages that good seal performance, safe, the life-span is long, good energy-conserving effect.
Below in conjunction with drawings and Examples to the utility model further instruction.
Accompanying drawing is an integral installation structural assembly sectional view of the present utility model.
In the accompanying drawing, valve seat (1), seal ring (2), screw slide bar (3), O RunddichtringO (4), protecting cover (5), pressure spring (6), blind nut (7), air valve blind nut (8), air valve swing handle (9), lubricant oil (10), the threaded coupling of giving vent to anger (11), air inlet taper threaded coupling (12).
Most preferred embodiment of the present utility model is such, shown in accompanying drawing, by valve seat (1), air valve blind nut (8), air valve swing handle (9) three most compositions, the inlet end of valve seat (1) has conical external screw thread, the other end has outside thread to connect air valve blind nut (8), have closed hole on the top, one side has the internal thread interface of giving vent to anger (11), the center has sliding rod hole, and seal ring (2) is inserted on slide bar (3) cap, passes valve base center hole, put into seal ring (4) and lubricant oil (10) in the closed hole, compress with protecting cover (5), be inserted in pressure spring (6) then and tighten blind nut (7), air valve blind nut (8) lower end has internal thread, the upper end has outside thread, the center drilling of lid (8), air valve swing handle (9) lower end have internal thread and connect air valve blind nut (8), and there is cylinder (13) to pass to cover the blind nut (7) that compresses behind the center hole on the slide bar centre.
The utility model both can be used as independent common LPG (liquefied petroleum gas) valve manually-operable and had used, and also can be connected use with electronic control system.Also can manufacture the high-pressure liquid valve that is suitable for each field.
Claims (1)
- A kind of novel liquefied petroleum gas safety valve, comprise by valve seat, pressure spring, the screw slide bar, the air valve blind nut, the air valve swing handle, sealing gasket, it is characterized in that valve seat (1) inlet end has conical external screw thread, the other end has outside thread to connect air valve blind nut (8), have closed hole on the top, one side has the internal thread interface of giving vent to anger (11), the center has sliding rod hole, seal ring (2) is inserted on slide bar (3) cap, pass the center hole of valve seat (1), put into seal ring (4) and lubricant oil (10) in the closed hole, compress with protecting cover (5), be inserted in pressure spring (6) then and tighten blind nut (7), air valve blind nut (8) lower end has internal thread, and the upper end has outside thread, and its center has the hole, air valve swing handle (9) lower end has internal thread and connects air valve blind nut (8), and there is cylinder (13) to pass to cover the blind nut (7) that compresses behind the center hole on the slide bar centre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99256664 CN2399565Y (en) | 1999-12-16 | 1999-12-16 | Liquefied gas safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99256664 CN2399565Y (en) | 1999-12-16 | 1999-12-16 | Liquefied gas safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2399565Y true CN2399565Y (en) | 2000-10-04 |
Family
ID=34039727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99256664 Expired - Fee Related CN2399565Y (en) | 1999-12-16 | 1999-12-16 | Liquefied gas safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2399565Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808955A (en) * | 2012-07-31 | 2012-12-05 | 孙家驹 | Dimethyl-ether-resistant steel cylinder valve |
| CN103574050A (en) * | 2012-07-31 | 2014-02-12 | 泰州长力树脂管有限公司 | Novel conical surface sealing adjusting valve device |
-
1999
- 1999-12-16 CN CN 99256664 patent/CN2399565Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808955A (en) * | 2012-07-31 | 2012-12-05 | 孙家驹 | Dimethyl-ether-resistant steel cylinder valve |
| CN103574050A (en) * | 2012-07-31 | 2014-02-12 | 泰州长力树脂管有限公司 | Novel conical surface sealing adjusting valve device |
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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 |