CN204201123U - A kind of high pressure oxygen stop valve - Google Patents
A kind of high pressure oxygen stop valve Download PDFInfo
- Publication number
- CN204201123U CN204201123U CN201420690517.3U CN201420690517U CN204201123U CN 204201123 U CN204201123 U CN 204201123U CN 201420690517 U CN201420690517 U CN 201420690517U CN 204201123 U CN204201123 U CN 204201123U
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- valve body
- profile
- valve
- high pressure
- tongue
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Abstract
The utility model relates to a kind of high pressure oxygen stop valve, solve the problem that sealing configuration defect causes valve body to leak, described valve gap matches with valve body, tongue and groove seal contact face is formed at both joining places, the profile of tooth sealing gasket for sealing is provided with in tongue and groove seal contact face, the sealing configuration of the utility model to valve gap and valve body improves, change original conventional seals structure into tongue and groove seal contact face, utilize the area of contact of profile of tooth sealing gasket little, large by pressure ratio, the advantages such as amount of elastic deformation is large, solve the seal defect that original technique deficiency is brought, valve gap can better be realized, the sealing of valve body.
Description
Technical field
The utility model relates to a kind of valve, particularly a kind of high pressure oxygen stop valve.
Background technique
High pressure oxygen stop valve, valve body and valve gap select American Standard ASTM CF8 material, CF8 is Cast Steel, and middle road sealing octagonal ring pad is selected is American Standard ASTM F304 material, F304 is forging, and they are all Austenitic Stainless Steels, and its Chemical composition and mechanical property are equivalent, solution heat treatment hardness HBS139-187, its shortcoming is as follows:
1, valve body, valve gap and octangonal ring are without difference of hardness;
2, octagonal ring pad pressurized sectional area rigidity is very large, and octagonal ring mat structure has 23 ° of oblique angles, is that a component works time stressed;
3, octagonal ring pad form and position tolerance (ovality, parallelism) in process for making is difficult to ensure technical requirements.
For above-mentioned reasons, cause that octagonal ring pad is stressed can not get resiliently deformable, do not reach complete air-proof condition, micro-leakage will be produced, be that oxygen valve is unallowed, again because form and position tolerance does not reach technical requirements, can distortion be produced when octagonal ring pad is stressed, cause sealing octagonal ring pad and valve body, valve gap to produce slight clearance, also can produce micro-leakage.Therefore this sealing configuration defect causes the root of leakage, repeatedly keeps in repair or scrap in causing valve to run.
Model utility content
In order to overcome the deficiency that sealing configuration defect causes valve body to leak, the utility model provides a kind of high pressure oxygen stop valve.
The technological scheme that the utility model adopts is: a kind of high pressure oxygen stop valve, and it comprises valve gap, valve body, and described valve gap matches with valve body, forming tongue and groove seal contact face, being provided with the profile of tooth sealing gasket for sealing in tongue and groove seal contact face at both joining places.
Described profile of tooth sealing gasket surface is provided with equally distributed profile of tooth.
Described profile of tooth sealing gasket is metal material.
The span of crown wide d, the d of described profile of tooth sealing gasket is: 0.5 mm-0.7mm.
The beneficial effects of the utility model are: the sealing configuration of the utility model to valve gap and valve body improves, change original conventional seals structure into tongue and groove seal contact face, utilize the area of contact of profile of tooth sealing gasket little, large by pressure ratio, the advantages such as amount of elastic deformation is large, solve the seal defect that original technique deficiency is brought, the sealing of valve gap, valve body can better be realized.
Accompanying drawing explanation
Fig. 1 is high pressure oxygen stop valve partial sectional view of the present utility model.
Fig. 2 is A place enlarged diagram in Fig. 1.
Fig. 3 is the sectional view of the utility model profile of tooth sealing gasket.
1-valve gap, 2-valve body, 3-tongue and groove seal contact face, 4-profile of tooth sealing gasket, 5-profile of tooth.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
As depicted in figs. 1 and 2, a kind of high pressure oxygen stop valve, it comprises valve gap 1, valve body 2, described valve gap 1 matches with valve body 2, both joining place form tongue and groove seal contact face 3, this tongue and groove seal contact face 3 is made up of the groove on the projecting surface on valve gap 1 and valve body 2, this tongue and groove seal contact face 3 bear seal preload and stressed be 100%, the profile of tooth sealing gasket 4 for sealing is provided with, to realize the sealing to valve body 2, valve gap 1 in tongue and groove seal contact face 3.
As shown in Figure 3, described profile of tooth sealing gasket 4 surface is provided with equally distributed profile of tooth 5, and can produce like this valve body 2, valve gap 1 and the ring packing of tongue and groove seal contact face 3 integration section, segmented seal is helped each other isolated, and actual sealing area reduces, unit pressure and stressed increase.
Described profile of tooth sealing gasket 4 is metal material, and working life is very good, not fragile, can Reusability.
As shown in Figure 3, the wide d of crown of described profile of tooth sealing gasket 4, the span of d is: 0.5 mm-0.7mm, crown withstands the lower surface of the groove on the lower surface of the projecting surface on valve gap 1 and valve body 2, compared to octangonal ring in the past, the area of contact of crown and valve gap 1, crown and valve body 2 greatly reduces, and namely the lifting surface area of profile of tooth sealing gasket 4 diminishes, therefore specific pressure increases, the stressed rear easy generation resiliently deformable of crown and obtain satisfied sealing effect.
Below described by reference to the accompanying drawings embodiment is only preferred implementation of the present utility model, and the restriction not to protection domain of the present utility model, and any improvement done based on the utility model spirit all ought within the utility model protection domain.
Claims (4)
1. a high pressure oxygen stop valve, it comprises valve gap (1), valve body, it is characterized in that: described valve gap (1) matches with valve body (2), form tongue and groove seal contact face (3) at both joining places, in tongue and groove seal contact face (3), be provided with the profile of tooth sealing gasket (4) for sealing.
2. high pressure oxygen stop valve according to claim 1, is characterized in that: described profile of tooth sealing gasket (4) surface is provided with equally distributed profile of tooth (5).
3. high pressure oxygen stop valve according to claim 1, is characterized in that: described profile of tooth sealing gasket (4) is metal material.
4. high pressure oxygen stop valve according to claim 1, is characterized in that: the span of crown wide d, the d of described profile of tooth sealing gasket (4) is: 0.5 mm-0.7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420690517.3U CN204201123U (en) | 2014-11-18 | 2014-11-18 | A kind of high pressure oxygen stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420690517.3U CN204201123U (en) | 2014-11-18 | 2014-11-18 | A kind of high pressure oxygen stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204201123U true CN204201123U (en) | 2015-03-11 |
Family
ID=52659087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420690517.3U Expired - Fee Related CN204201123U (en) | 2014-11-18 | 2014-11-18 | A kind of high pressure oxygen stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204201123U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485395A (en) * | 2015-11-25 | 2016-04-13 | 宁波瑾科机械制造有限公司 | Valve body of medical oxygen cylinder valve |
| CN111998081A (en) * | 2020-08-27 | 2020-11-27 | 高兆帕阀门集团有限公司 | Special stop valve for oxygen |
-
2014
- 2014-11-18 CN CN201420690517.3U patent/CN204201123U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485395A (en) * | 2015-11-25 | 2016-04-13 | 宁波瑾科机械制造有限公司 | Valve body of medical oxygen cylinder valve |
| CN111998081A (en) * | 2020-08-27 | 2020-11-27 | 高兆帕阀门集团有限公司 | Special stop valve for oxygen |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20171118 |