CN202484343U - Anti-blowout device of valve rod of cam flexure regulating valve - Google Patents
Anti-blowout device of valve rod of cam flexure regulating valve Download PDFInfo
- Publication number
- CN202484343U CN202484343U CN2012200387951U CN201220038795U CN202484343U CN 202484343 U CN202484343 U CN 202484343U CN 2012200387951 U CN2012200387951 U CN 2012200387951U CN 201220038795 U CN201220038795 U CN 201220038795U CN 202484343 U CN202484343 U CN 202484343U
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- China
- Prior art keywords
- valve rod
- valve
- regulating valve
- cam
- convex shoulder
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- Expired - Fee Related
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Abstract
An anti-blowout device of a valve rod of a cam flexure regulating valve comprises the valve rod and a valve body. The anti-blowout device of the valve rod of the cam flexure regulating valve is characterized in that a protruding shoulder is arranged at the lower end of the valve rod, the valve body is provided with a through hole, and the protruding shoulder of the valve rod is abutted against the lower end of a lining casing of the through hole of the valve body. The anti-blowout device of the valve rod of the cam flexure regulating valve has the advantages that an upward movement trend of the valve rod can be limited easily through the protruding shoulder arranged on the valve rod; the valve rod can not fly out even if internal pressure is increased; and the anti-blowout device of the valve rod of the cam flexure regulating valve is safe and reliable, and simple in structure.
Description
Technical field
The utility model belongs to a kind of valving, is a kind of anti-blowing out device of cam deflection regulating valve rod that is used on chemical industry and the light industry concretely.
Background technique
In existing chemical industry and light industry, valve mechanism is used in a lot of places, modal a kind of be exactly the ordinary ball valve valve rod; The through hole of valve body is provided with a valve rod; Boss is arranged on the valve rod, and under the normal situation of valve inner pressure, valve rod can not fly out; But under the situation that the valve inner pressure anomaly raises; Since at the Safeguard that does not have on the valve rod between setting and the valve body, the danger of in valve, pressing unusual situation about raising that valve rod is flown out, and this can bring serious hidden danger to safety in production.Therefore be necessary to be provided with a kind of valve mechanism safe, simple in structure.
Summary of the invention
The anti-blowing out device of a kind of cam deflection regulating valve rod that the utility model proposes; Mainly be exactly to solve valve rod under the unusual situation about raising of interior pressure; Flying out easily causes dangerous problem, provide a kind of safe, valve rod can not fly, a kind of cam valve device of simple in structure, reliable performance.
A kind of cam deflection regulating valve rod is prevented blowing out device, comprising: valve rod, and valve body is characterized in that: said valve rod lower end is provided with a convex shoulder, and said valve body has a through hole, and the convex shoulder of valve rod is resisted against the lining lower end of valve hole.Lower end at valve rod is provided with convex shoulder, and when valve rod was cooperated with valve hole, convex shoulder was resisted against the lower end of lower liner; Limited the trend that valve rod moves upward; Even under the unusual situation about raising of interior pressure pressure, valve rod also can not fly, and is safe and reliable and simple in structure.
Further, be provided with lower liner in the convex shoulder upper end of said valve rod, said convex shoulder is resisted against the lower end of lower liner.Between the through hole of valve body and valve rod, lower liner is set, convex shoulder and lower liner are leant, reduce procedure, produce easily, assembling is simple.
Further, said other auxiliary devices that between valve rod and valve body, is provided with are provided with filler above said lower liner, are spacer, last liner, Gland, elastic mechanism, hold-down grid successively.Between valve rod convex shoulder upper end and valve hole, so much parts are set; The design lower liner mainly is the convex shoulder of pressing valve rod, and filler is a seal action, prevents that medium from scurrying out from the valve rod slit, and spacer is that special occasions uses, and Gland and elastic mechanism play pressuring action.
Further, said hold-down grid is through being bolted on the valve body.Through bolt pressing plate is fixed, simple and reliable for structure, be easy to change.
Further, said elastic mechanism is a butterfly spring.Butterfly spring is set as elastic material, thereby is to prevent that nut from discharging the mechanical energy locking nut because of certain reason is lax.
Further, said butterfly spring one end is resisted against the hold-down grid lower end, and the other end is resisted against on the Gland.Through each other against, can transmit the power of hold-down grid downwards, when simultaneously the pressure in the valve rod lower end raises, can cushion impact force to hold-down grid.
Beneficial effect
The beneficial effect of the utility model is just to have limited valve rod to the trend that moves upward easily through convex shoulder is set on valve rod, even under the unusual situation about raising of interior pressure pressure, valve rod also can not fly, and is safe and reliable and simple in structure.
Description of drawings
Accompanying drawing is the structural representation of the utility model.
Embodiment
Shown in accompanying drawing, a kind of cam deflection regulating valve rod of the utility model is prevented blowing out device.Anti-blowing out device comprises valve rod 1, valve body 11; Be provided with convex shoulder 12 in the lower end of valve rod, on the convex shoulder 12 of valve rod from be followed successively by down lower liner 2, filler 3, spacer 4, on liner 5, Gland 6, butterfly spring 7, hold-down grid 8, stud bolt 9, the convex shoulder 12 of valve rod is resisted against the lower end of lower liner 2; The valve rod the other end stretches out valve body; Hold-down grid 8 passes valve rod and is resisted against on the butterfly spring 7, and bolt 9 passes bolt hole and is fixed on the valve body 1, under the situation that the pressure anomaly in the valve body raises; Butterfly spring therein can play the effect of buffering; The impact force that rushes at hold-down grid can be eased, also move up the danger with regard to preventing valve rod to be flown out so simultaneously because of the unusual rising of pressing in the valve because the convex shoulder that is provided with on the valve rod has limited valve rod.
Claims (6)
1. a cam deflection regulating valve rod is prevented blowing out device, and comprising: valve rod, valve body is characterized in that: said valve rod lower end is provided with a convex shoulder, and said valve body has a through hole, and the convex shoulder of valve rod is resisted against the lining lower end of valve hole.
2. cam deflection regulating valve rod according to claim 1 is prevented blowing out device, it is characterized in that: the convex shoulder upper end at said valve rod is provided with lower liner, and said convex shoulder is resisted against the lower end of lower liner.
3. cam deflection regulating valve rod according to claim 2 is prevented blowing out device; It is characterized in that: said other auxiliary devices that between valve rod and valve body, is provided with; Above said lower liner, being provided with filler, is spacer, last liner, Gland, elastic mechanism, hold-down grid successively.
4. cam deflection regulating valve rod according to claim 3 is prevented blowing out device, and it is characterized in that: said hold-down grid is through being bolted on the valve body.
5. cam deflection regulating valve rod according to claim 4 is prevented blowing out device, and it is characterized in that: said elastic mechanism is a butterfly spring.
6. cam deflection regulating valve rod according to claim 5 is prevented blowing out device, it is characterized in that: said butterfly spring one end is resisted against the hold-down grid lower end, and the other end is resisted against on the Gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200387951U CN202484343U (en) | 2012-01-14 | 2012-01-14 | Anti-blowout device of valve rod of cam flexure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200387951U CN202484343U (en) | 2012-01-14 | 2012-01-14 | Anti-blowout device of valve rod of cam flexure regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202484343U true CN202484343U (en) | 2012-10-10 |
Family
ID=46958767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200387951U Expired - Fee Related CN202484343U (en) | 2012-01-14 | 2012-01-14 | Anti-blowout device of valve rod of cam flexure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202484343U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712841A (en) * | 2015-03-31 | 2015-06-17 | 洛阳兴罡石化设备有限公司 | Sealing device for valve shaft of high-temperature butterfly valve |
| CN108626428A (en) * | 2018-07-05 | 2018-10-09 | 杭州杭氧工装泵阀有限公司 | A kind of ultralow temperature upper-mounting type ball valve |
-
2012
- 2012-01-14 CN CN2012200387951U patent/CN202484343U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712841A (en) * | 2015-03-31 | 2015-06-17 | 洛阳兴罡石化设备有限公司 | Sealing device for valve shaft of high-temperature butterfly valve |
| CN108626428A (en) * | 2018-07-05 | 2018-10-09 | 杭州杭氧工装泵阀有限公司 | A kind of ultralow temperature upper-mounting type ball valve |
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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: 20121010 Termination date: 20190114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |