CN204201194U - A kind of cylinder valve of non-refillable gas - Google Patents
A kind of cylinder valve of non-refillable gas Download PDFInfo
- Publication number
- CN204201194U CN204201194U CN201420597709.XU CN201420597709U CN204201194U CN 204201194 U CN204201194 U CN 204201194U CN 201420597709 U CN201420597709 U CN 201420597709U CN 204201194 U CN204201194 U CN 204201194U
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- valve
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- valve rod
- cylinder
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Abstract
The utility model relates to a kind of mechanical fitting, especially relates to a kind of cylinder valve being widely used in the non-refillable gas of the industries such as oil, chemical industry, medical treatment, machinery, environmental protection, food.Valve rod is provided with in the air cavity that it comprises valve body, the internal diameter of valve body one end is provided with bindiny mechanism and connects base, base is provided with inflation inlet, the external diameter at valve body two ends is provided with bindiny mechanism, bonnet two ends on valve rod are respectively equipped with the first seal ring, the second seal ring, one end that valve rod exposes valve body is provided with position-limit mechanism, and on the valve rod in valve body, one end of nearly position-limit mechanism is provided with taboo and fills shutdown mechanism.The utility model compensate for can the defect of repeated charging cylinder valve, guarantee gas once fill use after can not carry out secondary voluntarily and fill, effectively prevent the misloading of gas or load in mixture the accident potential brought, be conducive to the use safety management of cylinder filling, conscientiously ensure the lives and properties of the numerous public and the safety of national wealth.<b/>
Description
Technical field
The utility model relates to a kind of mechanical fitting, especially relates to a kind of cylinder valve being widely used in the non-refillable gas of the industries such as oil, chemical industry, medical treatment, machinery, environmental protection, food.
Background technique
Along with the development of gas technology, the Application and Development of various gas especially special gas, rare gas and edible gas is that the development of national economy increases, the huge effect that provides the living guarantee of the people to play.Gas cylinder fills gas by aerating equipment or instrument.Gas cylinder valve is as the safety attachment on filling gas steel cylinder, and its unlatching by valve or closedown export or block gas.Although the gas cylinder valve that prior art generally uses is various in style, caused by its reasons in structure, all can repeated charging gas.
In the face of flourish gas technology and the market demand, to the use of gas, fill, the requirement of safety control is also more and more higher.Because gas can be divided into nontoxic by character distinction, poisonous and harmful, the classification such as inflammable and explosive, so, different classes of gas filling requires also different, especially to poisonous and harmful, the gas such as inflammable and explosive and edible, if use the cylinder valve of repeated charging, privately steel cylinder is inflated, particularly unclear in bottle blurring, Consumer cannot judge in steel cylinder original when depositing gas properties, once there is gas misloading or load in mixture, very likely cause steel cylinder knocking fuel, toxic and harmful is leaked spread, jeopardize the safety of life and property of the numerous public.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of user can not voluntarily to the cylinder valve of the non-refillable gas of steel cylinder filling gas.The technological scheme that the utility model solves the employing of its technical problem is: a kind of cylinder valve of non-refillable gas, valve rod is provided with in the air cavity that it comprises valve body, the internal diameter of valve body one end is provided with bindiny mechanism and connects base, base is provided with inflation inlet, the external diameter at valve body two ends is provided with bindiny mechanism, bonnet two ends on valve rod are respectively equipped with the first seal ring, the second seal ring, one end that valve rod exposes valve body is provided with position-limit mechanism, and on the valve rod in valve body, one end of nearly position-limit mechanism is provided with taboo and fills shutdown mechanism.Technical problem to be solved in the utility model also can be solved further by following technological scheme: bindiny mechanism is screw thread; Position-limit mechanism is split washer; It is that valve rod has groove that taboo fills shutdown mechanism; Groove is triangle.The external diameter of the utility model first seal ring, the second seal ring is slightly less than the external diameter of bonnet, and valve body coordinates for dynamic with the relative sliding position of valve rod and upper bonnet thereof, and groove and/or footpath, the leg-of-mutton end are 1 ~ 3mm, preferred 2mm.The utility model is owing to adopting technique scheme, compensate for can the defect of repeated charging cylinder valve, guarantee gas once fill use after can not carry out secondary voluntarily and fill, must test to the gas in steel cylinder and identify as will be again filled gas to steel cylinder and fill use again after changing valve, after preventing the gas in steel cylinder to finish using, bottle blurring is unclear, when cannot judge original gas in steel cylinder and self-inflating, effectively prevent the misloading of gas or load in mixture the accident potential brought, be conducive to the use safety management of cylinder filling, conscientiously, the lives and properties of the numerous public and the safety of national wealth have been ensured.The utility model design is simple and direct, with low cost, easy to use, improves and fills efficiency.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and specific embodiment of the utility model, the utility model is described in further detail:
Accompanying drawing is structural representation of the present utility model.
Embodiment
With reference to accompanying drawing, valve rod 2 is provided with in the air cavity 8 of the utility model valve body 1, the internal diameter of valve body 1 one end is through the base 7 that is threaded, base 7 is provided with inflation inlet 10, the external diameter at valve body 1 two ends is provided with screw thread, bonnet 4 two ends on valve rod 2 are respectively equipped with the first seal ring 3, second seal ring 6, and one end that valve rod 2 exposes valve body 1 is provided with split washer 5, and on the valve rod 2 in valve body 1, one end of nearly split washer 5 has groove 9.
Embodiment 1: with reference to accompanying drawing, by the source of the gas that is threaded at split washer place near on the utility model valve body external diameter, the steel cylinder that is threaded of nearly base position on valve body external diameter, valve body coordinates for dynamic with the relative sliding position of valve rod and upper bonnet thereof, the gas pressure that source of the gas generates compresses the end face of (moving down) valve stem top until the end face of split washer conflict valve body, and drive the first seal ring simultaneously, second seal ring and bonnet are to shifting to base, because split washer to the distance of valve body end face is less than the distance of inflation inlet one end on the second seal ring to the base in valve body, inflation inlet in the non-closed base of second seal ring, therefore gas can be made to produce relative sliding position through valve body and valve rod and upper bonnet thereof move the gap between coordinating and inflation inlet carries gas to steel cylinder, until terminate inflation, gas pressure in steel cylinder and source of the gas balance, and in steel cylinder gas effect under jack-up (above moving) bonnet, make the first seal ring seal air cavity, steel cylinder can to gas facility air feed, remove source of the gas, valve rod acts on the external force of the triangular groove that is enough to fracture, when the gas in steel cylinder be finished gradually air pressure reduce gradually time, valve rod and on bonnet under gravity through the second seal ring conflict inflation inlet, now connect source of the gas, gas pressure makes the second seal ring deadend inflation inlet further, gas cannot be filled with in steel cylinder, prevent defuelling.
Claims (5)
1. the cylinder valve of a non-refillable gas, valve rod is provided with in the air cavity that it comprises valve body, it is characterized in that: the internal diameter of valve body one end is provided with bindiny mechanism and connects base, base is provided with inflation inlet, the external diameter at valve body two ends is provided with bindiny mechanism, bonnet two ends on valve rod are respectively equipped with the first seal ring, the second seal ring, and one end that valve rod exposes valve body is provided with position-limit mechanism, and on the valve rod in valve body, one end of nearly position-limit mechanism is provided with taboo and fills shutdown mechanism.
2. the cylinder valve of a kind of non-refillable gas according to claim 1, is characterized in that: bindiny mechanism is screw thread.
3. the cylinder valve of a kind of non-refillable gas according to claim 1, is characterized in that: position-limit mechanism is split washer.
4. the cylinder valve of a kind of non-refillable gas according to claim 1, is characterized in that: it is that valve rod has groove that taboo fills shutdown mechanism.
5. the cylinder valve of a kind of non-refillable gas according to claim 4, is characterized in that: groove is triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420597709.XU CN204201194U (en) | 2014-10-16 | 2014-10-16 | A kind of cylinder valve of non-refillable gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420597709.XU CN204201194U (en) | 2014-10-16 | 2014-10-16 | A kind of cylinder valve of non-refillable gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204201194U true CN204201194U (en) | 2015-03-11 |
Family
ID=52659156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420597709.XU Active CN204201194U (en) | 2014-10-16 | 2014-10-16 | A kind of cylinder valve of non-refillable gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204201194U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358901A (en) * | 2014-10-16 | 2015-02-18 | 宁波富华阀门有限公司 | Non-refilled steel gas cylinder valve |
| US20180313187A1 (en) * | 2017-05-01 | 2018-11-01 | Schlumberger Technology Corporation | Single body choke line and kill line valves |
| CN109154423A (en) * | 2016-05-26 | 2019-01-04 | 吉尔贝快车股份有限公司 | Anti- inflation can not reinflated formula gas cylinder |
-
2014
- 2014-10-16 CN CN201420597709.XU patent/CN204201194U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358901A (en) * | 2014-10-16 | 2015-02-18 | 宁波富华阀门有限公司 | Non-refilled steel gas cylinder valve |
| CN109154423A (en) * | 2016-05-26 | 2019-01-04 | 吉尔贝快车股份有限公司 | Anti- inflation can not reinflated formula gas cylinder |
| US20180313187A1 (en) * | 2017-05-01 | 2018-11-01 | Schlumberger Technology Corporation | Single body choke line and kill line valves |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |