CN202501055U - Filling-prevention and pouring-preventing safety valve used for liquefied petroleum gas canister - Google Patents
Filling-prevention and pouring-preventing safety valve used for liquefied petroleum gas canister Download PDFInfo
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- CN202501055U CN202501055U CN2012201556586U CN201220155658U CN202501055U CN 202501055 U CN202501055 U CN 202501055U CN 2012201556586 U CN2012201556586 U CN 2012201556586U CN 201220155658 U CN201220155658 U CN 201220155658U CN 202501055 U CN202501055 U CN 202501055U
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Abstract
The utility model relates to a safety valve, in particular to a filling-prevention and pouring-prevention safety valve used for a liquefied petroleum gas canister, and belongs to the technical field of valve structures. The filling-prevention and pouring-prevention safety valve comprises a valve body having a liquid inlet, a liquid outlet and a pressure vent and is characterized in that a steel ball, a floating plug, a pressure spring and a plug cover are mounted inside the valve body, wherein the steel ball ascends or descends under action of normal pressure and dead weight so as to plug the liquid inlet of the valve body, the floating plug is closely pressed on a seal table inside the valve body and can separate from the seal table under filling pressure, the pressure spring is pressed on one side of the floating plug and bears pressure so as to achieve pressing sealing, and the plug cover is pressed on the other side of the pressure spring and is fixedly connected with one end of the valve body. An overflowing hole communicated with the liquid inlet and the liquid outlet of the valve body is reserved on the floating plug. Functions of pouring prevention and filling prevention are integrated, and accordingly the filling-prevention and pouring-prevention safety valve is simple and reasonable in structural design, safe and reliable when used, can avoid the existing fact of liquefied petroleum gas pouring by individual operators, has broad application prospect, and is especially suitable for vast rural areas.
Description
Technical field
The utility model relates to a kind of safety valve, and particularly a kind of bottle gas jar anti-filled anti-down safety valve, belongs to the valve mechanism technical field.
Background technique
At present; LPG fills market in China; Have the phenomenon of individual operator's tank switching LPG for many years always, especially in vast rural area, this phenomenon ubiquity; These private persons had not both had the business qualification, had not had safety consciousness and protection knowledge yet, and the use that fills with users to tank switching brings great potential safety hazard.
To this phenomenon, our country once repeated injunctions, and prohibited tank switching phenomenon privately, and the user must arrive regular lpg filling station and fill liquid gas, but still can not forbid this phenomenon, and particularly this phenomenon is still deposited greatly in vast rural area.
Present existing liquefied petroleum gas cylinder valve is as shown in Figure 1, does not have the anti-anti-down function of filling.Therefore, design is a can prevent tank switching and prevent that the safety valve that fills from seeming and be even more important.
Summary of the invention
The purpose of the utility model be to provide a kind of reasonable in design simple and direct, use safe and reliable; Can thoroughly stop the safety valve that the tank switching phenomenon is filled in private; This needle designs existing bottle gas, can effectively avoid all the private persons beyond the regular fueling station to carry out illegal filling and tank switching.
For realizing above-mentioned purpose, the utility model has adopted following technological scheme:
A kind of be used for the bottle gas jar anti-filled anti-down safety valve; Be installed in the liquefied petroleum ga steel cylinder and and be connected with the tapered thread end of liquefied petroleum gas cylinder valve; Comprise have liquid entering hole A, the valve body 1 of liquid outlet C and pressure relief opening B, thereby thereby its special way be the inside of said valve body 1 be equipped with under the effect of normal pressure and deadweight, rise or descend realize the steel ball 2 of the said valve body liquid entering hole of shutoff A, closely be pressed on said valve body 1 inner sealing platform 1-1 but under filling pressure can with its disengaging floating stifled 3, press and be located at said floating stifled 3 one sides and bear to pressure and realize that the stage clip 4 of pressing sealing, pressure be located at the opposite side of said stage clip 4 and the blanking cover 5 that is fixedly connected with said valve body 1 one ends; Be opened in the opening of crossing that is connected with liquid entering hole A, the liquid outlet B of said valve body 1 on said floating stifled 3.
A limit position and the said valve body 1 liquid entering hole A of said steel ball 2 in valve body 1 is sealed and matched, and the internal diameter of said valve body 1 liquid entering hole A is less than the external diameter of said steel ball 2; Another limit position and said floating stifled 3 the cross opening 3-1 of said steel ball 2 in valve body 1 is sealed and matched, and said floating stifled 3 the internal diameter of crossing opening is less than the external diameter of said steel ball 2;
Said floating stifled 3 have and are positioned at the end 3-1 that is slidingly matched pressure relief opening B bottom, that fit tightly with valve body 1 inwall;
One end of said stage clip 4 is fixed on the blanking cover 5, and the other end is pressed and is located at floating stifled 3 one sides;
Said blanking cover 5 and the Placement of valve body 1 are that screw thread screws and is connected;
Said valve body 1, blanking cover 5 are for being processed by the lead brass material;
Said floating stifled 3 for to be processed by nylon material;
Said steel ball 2 is processed by stainless steel with stage clip 4.
The utility model is a kind of be used for the bottle gas jar anti-ly fill anti-down safety valve; To prevent tank switching and prevent that filling function is combined as a whole; Its reasonable in design is simple and direct, use safe and reliable, the phenomenon of the individual operator's tank switching LPG that can effectively avoid existing at present; Have a extensive future, be specially adapted to vast rural area.
Description of drawings
Fig. 1: liquefied petroleum gas cylinder valve structural representation of the prior art;
Fig. 2: the utility model is a kind of be used for the bottle gas jar anti-ly fill anti-down safety valve schematic representation;
Fig. 3: the utility model prevents filling anti-down safety valve scheme of installation;
Fig. 4: the anti-anti-tank switching functional schematic that fills anti-down safety valve of the utility model;
Fig. 5: the anti-anti-functional schematic that fills that fills anti-down safety valve of the utility model;
Fig. 6: the utility model after the fueling station supercharging normally fills schematic representation;
Fig. 7: the utility model is at family's normal operating condition schematic representation;
In the drawings, 1, valve body, 1-1, sealing platform, 2, steel ball, 3, floating stifled, 3-1, the end that is slidingly matched, 4, stage clip, 5, blanking cover, A, liquid entering hole, B, pressure relief opening, C, liquid outlet.
Embodiment
Following with reference to accompanying drawing, provide the embodiment of the utility model, be used for the formation of the utility model is further specified.
Present embodiment a kind of is used for the anti-of bottle gas jar and fills anti-down safety valve with reference to figure 2-7; Be installed in the liquefied petroleum ga steel cylinder and and be connected with the tapered thread end of YSQ-3 type liquefied petroleum gas cylinder valve; Comprise have liquid entering hole A, the valve body 1 of liquid outlet C and pressure relief opening B, thereby thereby the inside of said valve body 1 be equipped with under the effect of normal pressure and deadweight, rise or descend realize the steel ball 2 of the said valve body liquid entering hole of shutoff A, closely be pressed on said valve body 1 inner sealing platform 1-1 but under filling pressure can with its disengaging floating stifled 3, press and be located at said floating stifled 3 one sides and bear to pressure and realize that the stage clip 4 of pressing sealing, pressure be located at the opposite side of said stage clip 4 and the blanking cover 5 that is fixedly connected with said valve body 1 one ends; Be opened in the opening of crossing that is connected with liquid entering hole A, the liquid outlet B of said valve body 1 on said floating stifled 3.A limit position and the said valve body 1 liquid entering hole A of said steel ball 2 in valve body 1 is sealed and matched, and the internal diameter of said valve body 1 liquid entering hole A is less than the external diameter of said steel ball 2, and the external diameter of wherein said steel ball 2 is Φ 8, and the internal diameter of the liquid entering hole A of said valve body 1 is Φ 6; Another limit position and said floating stifled 3 the cross opening 3-1 of said steel ball 2 in valve body 1 is sealed and matched, and said floating stifled 3 the internal diameter of crossing opening is less than the external diameter of said steel ball 2; Said floating stifled 3 have and are positioned at the end 3-1 that is slidingly matched pressure relief opening B bottom, that fit tightly with valve body 1 inwall; One end of said stage clip 4 is fixed on the blanking cover 5, and the other end is pressed and is located at floating stifled 3 one sides; Said blanking cover 5 and the Placement of valve body 1 are that screw thread screws and is connected, and after the valve function test was accomplished, the threaded connection place of the said valve body 1 of some riveting and said blanking cover 5 made connecting thread more firm.The material of said valve body 1, blanking cover 5 is lead brass HPb59-1; Said floating stifled 3 materials are nylon 66; Said steel ball 2 is processed by stainless steel with stage clip 4.
The utility model a kind of is used for the bottle gas jar anti-ly fills anti-down safety valve, and its design principle and using process introduction are following:
1, anti-tank switching function (as shown in Figure 4)
When steel cylinder turns around; When valve body 1 upset is toppled over liquid lng in an other steel cylinder; Said steel ball 2 has fallen into the outlet end (being the liquid entering hole A place of valve body 1) of tank switching valve at the pressure of liquid lng self, outlet is blocked, like this; The only way of liquid lng has been plugged, and liquid lng just can't have been poured out.
2, the anti-function (as shown in Figure 5) that fills
The liquid gas tank switching mainly is to lean on the pressure of liquid gas self and the principle of deadweight to be filled in the another steel cylinder; The utility model safety valve in said valve body 1 indoor design the safe opening pressure range, when being filled, liquid lng promotes said steel ball 2 and is pressed in said floating stifled 3 cross on the opening; Valve is plugged; Thereby realize to fill or filling very difficulty, especially when internal pressure tends to be balanced, fill fully and can't realize at two steel cylinders (fill bottle and filled bottle).
When 3, fueling station normally fills (as shown in Figure 6)
When liquid gas normally fills in fueling station; Filling equipment can be on the basis of gas pressure boost pressure; Increasing part is 0.25-0.45MPa, and after supercharging, filling pressure is greater than the pressure of valve inner stage clip 4; Thereby floating stifled 3 and stage clip 4 of the steel ball 2 promotion bottoms on compressing top down move, thereby have realized normally filling.
4, valve normal operating condition (as shown in Figure 7)
It all is through the post-decompression gaseous state of reduction valve that family uses LPG; After opening cooking stove, the gaseous liquefied gas in the bottle overcomes the deadweight of steel ball 2 under the pressure of self, back down steel ball 2; Liquid gas flows out valve through floating stifled 3 the opening of crossing, and supplies with cooking stove and uses.
The utility model is a kind of be used for the bottle gas jar anti-ly fill anti-down safety valve; To prevent tank switching and prevent that filling function is combined as a whole; Its reasonable in design is simple and direct, use safe and reliable, the phenomenon of the individual operator's tank switching LPG that can effectively avoid existing at present; Have a extensive future, be specially adapted to vast rural area.
The foregoing description of the utility model only be for explain clearly that the utility model does for example; And be not to be the qualification to the mode of execution of the utility model; Those of ordinary skill for affiliated field; On the basis of above-mentioned explanation, can also make other multi-form variation or change; Here can't give exhaustively to all mode of executions, conspicuous variation that every technological scheme that belongs to the utility model is extended out or change still are in the row of protection domain of the utility model.
Claims (5)
1. be used for the bottle gas jar anti-filled anti-down safety valve; The valve body (1) that comprises have liquid entering hole (A), liquid outlet (C) and pressure relief opening (B), it is characterized in that said valve body (1) thus inside be equipped with under the effect of normal pressure and deadweight, rise or descend realize the steel ball (2) of the said valve body liquid entering hole of shutoff (A), closely be pressed on said valve body (1) inner sealing platform (1-1) but can be under filling pressure with floating stifled (3) of its disengaging, press be located at said floating stifled (3) thus a side and bear to pressure and realize that the stage clip (4) of pressing sealing, pressure be located at the opposite side of said stage clip (4) and the blanking cover (5) that is fixedly connected with said valve body (1) one end; Be opened in the opening of crossing that is connected with liquid entering hole (A), the liquid outlet (B) of said valve body (1) on said floating stifled (3).
2. the anti-anti-down safety valve that fills as claimed in claim 1; It is characterized in that a limit position and said valve body (1) liquid entering hole (A) of said steel ball (2) in said valve body (1) is sealed and matched, the internal diameter of said valve body (1) liquid entering hole (A) is less than the external diameter of said steel ball (2); Another limit position and said floating the cross opening (3-1) that block up (3) of said steel ball (2) in valve body 1 is sealed and matched, and the internal diameter of crossing opening of said floating stifled (3) is less than the external diameter of said steel ball (2).
3. as claimed in claim 1ly anti-fill anti-down safety valve, it is characterized in that said floating stifled (3) have and be positioned at the end (3-1) that is slidingly matched pressure relief opening (B) bottom, that fit tightly with valve body (1) inwall.
4. as claimed in claim 1ly anti-fill anti-down safety valve, it is characterized in that an end of said stage clip (4) is fixed on the blanking cover (5), the other end is pressed and is located at floating stifled (3) one sides.
5. as claimed in claim 1ly anti-fill anti-down safety valve, the Placement that it is characterized in that said blanking cover (5) and valve body (1) is for being threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201556586U CN202501055U (en) | 2012-04-13 | 2012-04-13 | Filling-prevention and pouring-preventing safety valve used for liquefied petroleum gas canister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201556586U CN202501055U (en) | 2012-04-13 | 2012-04-13 | Filling-prevention and pouring-preventing safety valve used for liquefied petroleum gas canister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202501055U true CN202501055U (en) | 2012-10-24 |
Family
ID=47037669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201556586U Expired - Fee Related CN202501055U (en) | 2012-04-13 | 2012-04-13 | Filling-prevention and pouring-preventing safety valve used for liquefied petroleum gas canister |
Country Status (1)
| Country | Link |
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| CN (1) | CN202501055U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913354A (en) * | 2012-11-09 | 2013-02-06 | 无锡市鸿声船用玻璃钢有限公司 | Self-closing air inlet unit of high-speed working boat |
| CN104197061A (en) * | 2014-09-13 | 2014-12-10 | 何扶华 | Charge-limiting cylinder valve |
| CN104847931A (en) * | 2015-05-05 | 2015-08-19 | 朱志强 | Internal safety valve of storage tank |
-
2012
- 2012-04-13 CN CN2012201556586U patent/CN202501055U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913354A (en) * | 2012-11-09 | 2013-02-06 | 无锡市鸿声船用玻璃钢有限公司 | Self-closing air inlet unit of high-speed working boat |
| CN104197061A (en) * | 2014-09-13 | 2014-12-10 | 何扶华 | Charge-limiting cylinder valve |
| CN104197061B (en) * | 2014-09-13 | 2016-08-17 | 何扶华 | Limit fills cylinder valve |
| CN104847931A (en) * | 2015-05-05 | 2015-08-19 | 朱志强 | Internal safety valve of storage tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121024 Termination date: 20150413 |
|
| EXPY | Termination of patent right or utility model |