CN105370948A - Opening and closing device for filling and using gas cylinders used for vehicles - Google Patents
Opening and closing device for filling and using gas cylinders used for vehicles Download PDFInfo
- Publication number
- CN105370948A CN105370948A CN201410404225.3A CN201410404225A CN105370948A CN 105370948 A CN105370948 A CN 105370948A CN 201410404225 A CN201410404225 A CN 201410404225A CN 105370948 A CN105370948 A CN 105370948A
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- CN
- China
- Prior art keywords
- valve body
- pressure cap
- safety
- opening
- closing device
- 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.)
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses an opening and closing device for filling and using gas cylinders used for vehicles. The opening and closing device comprises a valve body, a pressing cap, a valve rod, a steel ball, a sealing base, a handle, a hexagonal pressing cap, a seal ring, a gasket and a screw. The opening and closing device is characterized in that a pressure release passageway leading to one side of the valve body from the lower end is manufactured on the valve body; the safety pressing cap with a release hole is assembled at a pressure release hole of the pressure release passageway; fusible alloy filler is poured into the safety release hole; a safety membrane is assembled at the inner end of the safety pressing cap; a thread is formed in the cylindrical face of the safety pressing cap and is assembled together with the pressure release hole in one side of the valve body; and a stainless steel piece with the thickness of 0.08 mm is used as the safety membrane. The opening and closing device is compact in structure, small in size and suitable for being installed at a narrow position on an automobile.
Description
Technical field
What the present invention relates to that a kind of vehicle gas cylinder fills and use opens and closes device.
Background technique
To be gas cylinder filling and opening and closing device in using process cylinder valve.Existing cylinder valve adopts valve body, pressure cap, valve rod, steel ball, sealing seat, handle, hexagonal pressure cap, seal ring, screw, packing ring assemblies, screw with gas cylinder after the tapered thread of valve body lower portion is wrapped with sealing strip and be connected, the passage connector of valve body side and the equipment connection of user, the passage dress of valve body opposite side silently, installing sealing seat in valve body, pressure cap, pressure cap is shaped with logical valve side, the passage of valve pocket, pressure cap covers on sealing seat, equipped seal ring and valve seal on pressure cap cylindrical, pressure cap is connected with valve body screw thread, on sealing seat, cover has seal washer, the built-in steel ball being shaped with through hole of sealing seat, the inner of steel ball and valve rod is rabbeted, handle is overlapped successively in valve rod outer end, hexagonal pressure cap, anti-attrition liner, handle screw, spring washer is fixed on the outer end of valve rod, equipped seal ring between the endoporus of hexagonal pressure cap and valve rod cylinder, hexagonal pressure cap is connected with valve body screw thread, hexagonal pressure cap screw thread rear portion dress seal ring and valve seal.Fill the vehicle gas cylinder of rock gas to open and close matching requirements volume little, open simple, also require that bearing nominal pressure 20MPa has safety protection.
Summary of the invention
For solving above-mentioned existing shortcoming, what main purpose of the present invention was to provide a kind of vehicle gas cylinder of practicality to fill and use opens and closes device, compact structure, and volume is little, is suitable for the installation of narrow position on automobile.
For reaching above-described object, what a kind of vehicle gas cylinder of the present invention filled and used open and close device takes following technological scheme:
What a kind of vehicle gas cylinder filled and used opens, close device, comprise valve body, pressure cap, valve rod, steel ball, sealing seat, handle, hexagonal pressure cap, seal ring, packing ring, screw forms, it is characterized in that, described valve body is shaped with the pressure release passage passing to valve body side from lower end, and the safe pressure cap being shaped with escape orifice is equipped with at the relief hole of described pressure release passage, low melting alloy filler is poured into a mould in described safety relief hole, the equipped rupture disk in described safe pressure cap the inner, the cylndrical surface screw thread of described safe pressure cap and the relief hole of valve body side assemble, described blowout disk adopts the stainless steel sheets of thickness 0.08mm.
Adopt the present invention of as above technological scheme, there is following beneficial effect:
Compact structure of the present invention, volume is little, be suitable for the installation of narrow position on automobile, opening and closing of it is a ball valve, spheroid is around the axis half-twist of valve rod, time is only 0.05 0.1s, the quick Jian of cylinder valve can be realized open and close, because equipped safety installations is when the serviceability temperature pressure exceeded in the dissolving temperature of easy fusing alloy plug or gas cylinder exceedes blowout disk setting safety standard, guarantee the pressure that cylinder valve is released in gas cylinder, stop the security incident because superhigh temperature, ultrahigh pressure cause, be applicable to compressed natural gas used as vehicle fuel steel cylinder.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of air valve.
Fig. 2 is shaped with pressure release passage and the air valve structure schematic diagram of equipped safety installations.
Embodiment
In order to further illustrate the present invention, be described further below in conjunction with accompanying drawing:
As depicted in figs. 1 and 2, what a kind of vehicle gas cylinder of the present invention filled and used opens and closes device, comprise adopt valve body 4, pressure cap 3, valve rod 19, steel ball 7, sealing seat 8, handle 18, hexagonal pressure cap 17, seal ring 2,6,9,15,16, screw 21, spring washer 20; Be fastenedly connected with gas cylinder after the tapered thread of valve body 4 bottom is wrapped with sealing strip, valve body side can be fastenedly connected with the equipment of user by joint 5, and the opposite side of valve body is original-pack silently 1 to be changed into and fill safe pressure cap 11; Valve body 4 inner chamber installs sealing seat 8, pressure cap 3 successively, pressure cap 3 covers on sealing seat 8, on sealing seat 8, cover has seal washer 9, the built-in steel ball 7 with through hole of sealing seat 8, pressure cap 3 is shaped with the gas channel of logical valve pocket, on pressure cap 3 cylindrical, equipped 0 shape seal ring 2,6 and valve body 4 seal, and pressure cap 3 is threaded with valve body 4; The inner and the steel ball 7 of valve rod 19 are rabbeted; Valve rod 19 outer end is overlapped successively handle 18, hexagonal pressure cap 17, anti-attrition liner 14, handle 18 screw 21, spring washer 20 are fixed on the outer end of valve rod 19, between the endoporus of hexagonal pressure cap 17 and valve rod 19 cylinder, equipped 0 shape seal ring 15 prevents Leakage Gas, hexagonal pressure cap 17 is threaded with valve body 4, and the opening's edge that hexagonal pressure cap 17 and valve body 4 fill valve rod is equipped with seal ring 16; Rotatable handle 18 is with ovable valve stem 19 to rotate 90.Namely angle drives steel ball 7 half-twist to open cylinder valve, the pressure release passage of valve body afterbody leads to valve body relief hole, valve body relief hole and safe pressure cap 11 are fastenedly connected, safety relief hole is provided with in safe pressure cap 11, low melting alloy filler 10 is poured into a mould in safety relief hole, rupture disk 12 is placed in safe pressure cap 11 the inner, blowout disk adopts the stainless steel sheets of thickness 0.08mm, packing ring 13 is placed between the flighting front end of safe pressure cap 11 and valve body 4, when pressure in gas cylinder reaches 5/3 times of gas cylinder nominal operating pressure, permissible error is ± 5%(33.3Mpa), low melting alloy melted by heat in safe pressure cap, gas pressure acts on blowout disk, blowout disk is produced and shears explosion, gas is released from safety relief hole, play the effect of safety protection.
Claims (1)
1. what a vehicle gas cylinder filled and used opens, close device, comprise valve body, pressure cap, valve rod, steel ball, sealing seat, handle, hexagonal pressure cap, seal ring, packing ring, screw forms, it is characterized in that, described valve body is shaped with the pressure release passage passing to valve body side from lower end, and the safe pressure cap being shaped with escape orifice is equipped with at the relief hole of described pressure release passage, low melting alloy filler is poured into a mould in described safety relief hole, the equipped rupture disk in described safe pressure cap the inner, the cylndrical surface screw thread of described safe pressure cap and the relief hole of valve body side assemble, described blowout disk adopts the stainless steel sheets of thickness 0.08mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410404225.3A CN105370948A (en) | 2014-08-18 | 2014-08-18 | Opening and closing device for filling and using gas cylinders used for vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410404225.3A CN105370948A (en) | 2014-08-18 | 2014-08-18 | Opening and closing device for filling and using gas cylinders used for vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105370948A true CN105370948A (en) | 2016-03-02 |
Family
ID=55373403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410404225.3A Withdrawn CN105370948A (en) | 2014-08-18 | 2014-08-18 | Opening and closing device for filling and using gas cylinders used for vehicles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105370948A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388488A (en) * | 2018-04-19 | 2019-10-29 | 中国石油化工股份有限公司 | A kind of blasting piece device |
-
2014
- 2014-08-18 CN CN201410404225.3A patent/CN105370948A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388488A (en) * | 2018-04-19 | 2019-10-29 | 中国石油化工股份有限公司 | A kind of blasting piece device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160302 |