CN207393980U - A kind of liquefied gas cylinder safety valve - Google Patents
A kind of liquefied gas cylinder safety valve Download PDFInfo
- Publication number
- CN207393980U CN207393980U CN201721471639.3U CN201721471639U CN207393980U CN 207393980 U CN207393980 U CN 207393980U CN 201721471639 U CN201721471639 U CN 201721471639U CN 207393980 U CN207393980 U CN 207393980U
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- CN
- China
- Prior art keywords
- valve rod
- valve
- rod
- gasket
- deck
- 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
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses a kind of liquefied gas cylinder safety valves；Including valve body, valve deck, handwheel and nut；Valve rod, spring and gasket are equipped in valve body；Lacquer disk(-sc) cushion is equipped with above the valve body；The lacquer disk(-sc) cushion is connected through a screw thread with valve deck；The valve rod is divided into lower valve rod and upper valve rod；The gasket is arranged between upper valve rod and lower valve rod；The lower valve rod is mounted in valve body；The spring pocket is on lower valve rod；The upper valve rod is installed in valve deck, and is stretched out at the top of valve deck；The upper end of the upper valve rod is threaded rod；The lower end of the upper valve rod is hollow, and flap is cased in cavity；The upper valve rod, which corresponds to, is equipped with banking pin at flap；The nut and handwheel are installed on threaded rod upper end successively from top to bottom.Safety valve arrangement is simple, sealed reliable, prevent leakage accident, and service life is long.
Description
Technical field
The utility model is related to a kind of safety valves；Especially a kind of liquefied gas cylinder safety valve.
Background technology
Liquefied gas is commonly mounted in high voltage bearing cylinder of steel and uses, and is comparatively safe under normal circumstances, when use opens valve
Door, since pressure reduces, liquefied gas just becomes gaseous state by liquid, just blazes up, is convenient for people to use once igniting, but
During using liquefied gas, particularly in closed interior, Liquified gas leakage allows people to discover easily, is likely to result in poisoning or explosion
Danger.
For existing safety valve, by analysis, the main reason for gas leakage：Bearing screw is lifted when opening valve
It rises, intercommunicating pore is opened, and inlet and outlet connection turns on blast tube；Rotatory sealing is because using too long, butter liquefaction outflow, gas
Just along the gap of opposite slip toward external leakage；Many old valves add bearing to seal on Seal treatment with rotatory sealing now
Stifled, after usage time has been grown, gas is constantly accumulated, at screw thread outside steric bulk liquefied gas it is excessive, safety problem generates.
The content of the invention
To solve the above-mentioned problems, a kind of liquefied gas cylinder safety valve rational in infrastructure, safe to use is provided.
The purpose of this utility model is so realization：A kind of liquefied gas cylinder safety valve；Including valve body, valve deck, hand
Wheel and nut；Valve rod, spring and gasket are equipped in valve body；Lacquer disk(-sc) cushion is equipped with above the valve body；The lacquer disk(-sc)
Cushion is connected through a screw thread with valve deck；The valve rod is divided into lower valve rod and upper valve rod；The gasket be arranged on upper valve rod and
Between lower valve rod；The lower valve rod is mounted in valve body；The spring pocket is on lower valve rod；The upper valve rod is installed on
In valve deck, and stretch out at the top of valve deck；The upper end of the upper valve rod is threaded rod；The lower end of the upper valve rod is hollow, in cavity
It is cased with flap；The upper valve rod, which corresponds to, is equipped with banking pin at flap；The nut and handwheel are installed on successively from top to bottom
Threaded rod upper end.
The utility model further optimizes：The lower valve rod is the T-bar of bulb shape；The flap is work shape part.
The utility model further optimizes：The gasket is the circular glue gasket of elasticity.
The operation principle of the utility model is：Safety valve is closed, and flap compressing gasket makes spring compression, under
Valve rod blocks intercommunicating pore, and blast tube is closed；During ventilation, rotation hand wheel, upper valve rod drives flap to move upwards, and reduces gasket
The oppressive force being subject to, spring reset elongation, drives lower valve rod to move upwards, and blast tube is opened, and realizes ventilation；It reversely rotates
Handwheel, upper valve rod drive flap to move downward, and oppress gasket, spring compression, and lower valve rod moves downward, and blocks connection again
Hole, blast tube are closed, and stop ventilation.
The utility model advantageous effect：
1. compared with traditional sealing system, valve rod is divided into two by the utility model, and increases between upper lower valve rod
Pad sealing together so that gasket forms sealing, sealed reliable with valve in vivo lacquer disk(-sc) cushion, it is ensured that zero leakage, use
Securely and reliably, service life is long.
2. the utility model gasket is the circular glue gasket of elasticity, material is simple and easy to get, and replacement cost is low；Flap is work shape
Part, banking pin limitation flap move up and down distance.
3. the utility model is simple in structure, scientific and reasonable, easy to operate, existing part can be purchased and can be realized, be easy to
Popularization and extensive use.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the top view of the utility model.
Fig. 3 is the B-B sectional views of the utility model.
Component serial number and title in figure：
1- valve bodies, 2- valve decks, 3- handwheels, 4- lower valve rods, 5- springs, 6- gaskets, 7- flaps, 8- banking pins, 9- nuts,
10- nuts, 11- threaded rods, 12- upper valve rods, 13- lacquer disk(-sc) cushions.
Specific embodiment
The utility model is further illustrated below in conjunction with the accompanying drawings.
Embodiment 1：As shown in Figs. 1-3, a kind of liquefied gas cylinder safety valve；Including valve body 1, valve deck 2, handwheel 3 and nut
9；Valve rod, spring 5 and gasket 6 are equipped in valve body 1；1 top of valve body is equipped with lacquer disk(-sc) cushion 13；The lacquer disk(-sc) is sat
Pad 13 is connected through a screw thread with valve deck 2；The valve rod is divided into lower valve rod 4 and upper valve rod 12；The gasket 6 is arranged on upper valve
Between bar 12 and lower valve rod 4；The lower valve rod 4 is mounted in valve body 1；The spring 5 is sleeved on lower valve rod 4；Described
Upper valve rod 12 is installed in valve deck 2, and stretches out 2 top of valve deck；The upper end of the upper valve rod 12 is threaded rod 11；The upper valve
The lower end of bar 12 is hollow, and flap 7 is cased in cavity；The upper valve rod 12, which corresponds to, is equipped with banking pin 8 at flap；The nut
9 and handwheel 3 be installed on 11 upper end of threaded rod successively from top to bottom.
The lower valve rod 4 is the T-bar of bulb shape；The flap 7 is work shape part.
The gasket 6 is the circular glue gasket of elasticity.
During operation：Safety valve is closed, and flap 7, which oppresses gasket 6, compresses spring 5, and lower valve rod 4 blocks connection
Hole, blast tube are closed；During ventilation, rotation hand wheel 3, upper valve rod 12 drives flap 7 to move upwards, and reduces what gasket 6 was subject to
Oppressive force, spring 5 reset elongation, lower valve rod 4 are driven to move upwards, and blast tube is opened, and realize ventilation；Reversely rotate handwheel
3, upper valve rod 12 drives flap 7 to move downward, and oppresses gasket 6, and spring 5 compresses, and lower valve rod 4 moves downward, again the company of blocking
Through hole, blast tube are closed, and stop ventilation.
Embodiment 2：
Difference from Example 1 is：Spring can be also covered in threaded rod 11, the dynamics of sealing can be increased, but
It is that the effect reached is consistent.
Obviously, above-described embodiment is just for the sake of clearly illustrating example of the present invention, and is not the limit to implementation
It is fixed.For the those of ordinary skill in the field, it can also make on the basis of the above description other various forms of
Variation changes.There is no need and unable to all embodiment party's formulas with exhaustion.And it thus amplifies out obvious
Variation or variation are still in the protection scope of this invention.
Claims (3)
1. a kind of liquefied gas cylinder safety valve；Including valve body（1）, valve deck（2）, handwheel（3）And nut（9）；In valve body（1）Inside set
There are valve rod, spring（5）And gasket（6）；It is characterized in that：The valve body（1）Top is equipped with lacquer disk(-sc) cushion（13）；Described
Lacquer disk(-sc) cushion（13）With valve deck（2）It is connected through a screw thread；The valve rod is divided into lower valve rod（4）And upper valve rod（12）；Described
Gasket（6）Arranged on upper valve rod（12）And lower valve rod（4）Between；The lower valve rod（4）Mounted on valve body（1）It is interior；Described
Spring（5）It is sleeved on lower valve rod（4）On；The upper valve rod（12）It is installed on valve deck（2）It is interior, and stretch out valve deck（2）Top；It is described
Upper valve rod（12）Upper end be threaded rod（11）；The upper valve rod（12）Lower end it is hollow, flap is cased in cavity（7）；Institute
The upper valve rod stated（12）Banking pin is equipped at corresponding flap（8）；The nut（9）And handwheel（3）It installs successively from top to bottom
In threaded rod（11）Upper end.
2. a kind of liquefied gas cylinder safety valve according to claim 1, it is characterised in that：The lower valve rod（4）For ball
The T-bar of head；The flap（7）For work shape part.
3. a kind of liquefied gas cylinder safety valve according to claim 1, it is characterised in that：The gasket（6）For bullet
Property circle glue gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721471639.3U CN207393980U (en) | 2017-11-07 | 2017-11-07 | A kind of liquefied gas cylinder safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721471639.3U CN207393980U (en) | 2017-11-07 | 2017-11-07 | A kind of liquefied gas cylinder safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207393980U true CN207393980U (en) | 2018-05-22 |
Family
ID=62325231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721471639.3U Expired - Fee Related CN207393980U (en) | 2017-11-07 | 2017-11-07 | A kind of liquefied gas cylinder safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207393980U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117967845A (en) * | 2024-03-28 | 2024-05-03 | 靖江市亚泰物流装备有限公司 | Tank safety valve |
-
2017
- 2017-11-07 CN CN201721471639.3U patent/CN207393980U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117967845A (en) * | 2024-03-28 | 2024-05-03 | 靖江市亚泰物流装备有限公司 | Tank safety valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180522 Termination date: 20211107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |