CN205101633U - O type circle self sealss check valve - Google Patents
O type circle self sealss check valve Download PDFInfo
- Publication number
- CN205101633U CN205101633U CN201520825898.6U CN201520825898U CN205101633U CN 205101633 U CN205101633 U CN 205101633U CN 201520825898 U CN201520825898 U CN 201520825898U CN 205101633 U CN205101633 U CN 205101633U
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- CN
- China
- Prior art keywords
- type circle
- concave part
- valve
- valve body
- valve gap
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- 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.)
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- Check Valves (AREA)
- Lift Valve (AREA)
Abstract
(B, ) the utility model provides a (B, ) (b) O (b) (b) type circle self sealss check valve, including valve body, valve gap, (b) (b) O (b) (b) type circle, the valve body with valve gap cooperation end is opened there is the concave part, be equipped with (b) (b) O (b) (b) type circle groove on the horizontal plane of concave part, (B, ) (b) O (b) (b) type circle is arranged in (B, ) in (b) O (b) (b) type circle groove, its characterized in that: the perpendicular of concave part is smooth surface, the valve gap be equipped with with the corresponding convex part of concave part, the convex part is arranged in in the concave part and compress tightly (B, ) (b) O (b) (b) type circle, the perpendicular of convex part is smooth surface, the convex part with the concave part is transition (b) (b) (b) (b) or interference fit, the utility model discloses a when the check valve has pressure medium inside the valve, (The effect meeting of pressing in b) (b) O (b) (b) type circle receives becomes sealed at the top and bottom table shape of face that (b) (b) O (b) (b) type enclosed the groove, and along with the increase of interior pressure, (B, ) the sealing performance of (b) O (b) (b) type circle has any change hardly, when (even b) (b) O (b) (b) type circle is in the inefficacy or seals the not tight condition, the metal seal that the perpendicular surface of smooth concave part of valve body and the smooth vertical table shape of face of convex part of valve gap become still can provide good sealed effect, the not good problem of gasket seal effect has in the past been avoided. (B, )
Description
Technical field
the utility model relates to field of check valves, especially relates to a kind of O type circle selfsealings safety check.
Background technique
along with socioeconomic development, valve industry is development thereupon, and application is constantly widened, also more and more higher to the requirement of valve gate technology.
in prior art, in valve, flange adopts gasket seal mostly, but gasket seal needs to make bolt opposite end body and end cap to have a larger pretightening force, and along with increasing of pressing in valve, sealing can be deteriorated.
Model utility content
in order to overcome above-mentioned deficiency, the purpose of this utility model is to provide a kind of O type circle selfsealings safety check, the problem of its sealing poor stability that valve body and end cap can be avoided to produce owing to adopting gasket seal.
for achieving the above object, the utility model can adopt following technological scheme: a kind of O type circle selfsealings safety check, comprise valve body, valve gap, O type circle, it is characterized in that: described valve body top is provided with a contacting part, described valve gap bottom surface is provided with an auxiliary section adapted with described contacting part, the metal covering of the end face of described contacting part and the end face of described auxiliary section to be surface roughness value be 0.6-0.8um, described contacting part is provided with recess, the horizontal plane of described recess is provided with O type ring recess, described O type circle is placed in described O type ring recess, described auxiliary section is provided with the protuberance adapted with described recess, described protuberance to be placed in described recess and to compress described O type circle.
further, described valve gap and described valve body adopt stud to be connected.
further, described valve gap and described valve body with bolts.
safety check of the present utility model is when valve internal has pressure medium, the effect that O type circle is subject to interior pressure can form sealing in the upper and lower surface of O type ring recess, and along with the increase of interior pressure, the sealability of O type circle has any change hardly, even if when O type circle is in inefficacy or poorly sealed situation, the contacting part of valve body and the auxiliary section of valve gap match formed metal sealing still can provide good sealing effect, avoid the problem that gasket seal sealing effect is bad in the past.
according to hereafter by reference to the accompanying drawings to the detailed description of the utility model specific embodiment, those skilled in the art will understand above-mentioned and other objects, advantage and feature of the present utility model more.
Accompanying drawing explanation
hereinafter describe specific embodiments more of the present utility model with reference to the accompanying drawings by way of example, and not by way of limitation in detail.Reference character identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that these accompanying drawings may not be drawn in proportion.In accompanying drawing:
fig. 1 is according to the utility model general structure schematic diagram.
Embodiment
below in conjunction with the drawings and specific embodiments, illustrate the utility model further.
a kind of O type circle selfsealings safety check as shown in Figure 1, comprise valve body 1, valve gap 2, O type circle 9, described valve body 1 top is provided with a contacting part 4, described valve gap 2 bottom surface is provided with an auxiliary section 5 adapted with described contacting part 4, the metal covering of the end face of described contacting part 4 and the end face of described auxiliary section 5 to be surface roughness value be 0.6-0.8um, described contacting part is provided with recess 6, the horizontal plane 7 of described recess 6 is provided with O type ring recess 8, described O type circle 9 is placed in described O type ring recess 8, described auxiliary section 5 is provided with the protuberance 10 adapted with described recess 6, described protuberance 10 to be placed in described recess 6 and to compress described O type circle 8.When valve internal has pressure medium, the effect that O type circle is subject to interior pressure can form sealing in the upper and lower surface of O type ring recess, and along with the increase of interior pressure, the sealability of O type circle has any change hardly, even if when O type circle is in inefficacy or poorly sealed situation, the contacting part of valve body and the auxiliary section of valve gap match formed metal sealing still can provide good sealing effect, avoid the problem that gasket seal sealing effect is bad in the past.
in a specific embodiment of the present utility model, described valve gap 2 adopts stud to be connected with described valve body 1.
in a specific embodiment of the present utility model, described valve gap 2 is with bolts with described valve body 1.
so far, those skilled in the art will recognize that, although multiple exemplary embodiment of the present utility model is illustrate and described herein detailed, but, when not departing from the utility model spirit and scope, still can directly determine or derive other modification many or amendment of meeting the utility model principle according to content disclosed in the utility model.Therefore, scope of the present utility model should be understood and regard as and cover all these other modification or amendments.
Claims (3)
1. an O type circle selfsealings safety check, comprise valve body (1), valve gap (2), O type circle (9), it is characterized in that: described valve body (1) top is provided with a contacting part (4), described valve gap (2) bottom surface is provided with an auxiliary section (5) adapted with described contacting part (4), the metal covering of the end face of described contacting part (4) and the end face of described auxiliary section (5) to be surface roughness value be 0.6-0.8um, described contacting part (4) is provided with recess (6), the horizontal plane (7) of described recess is provided with O type ring recess (8), described O type circle (9) is placed in described O type ring recess (8), described auxiliary section (5) is provided with the protuberance (10) adapted with described recess (6), described protuberance (10) to be placed in described recess (6) and to compress described O type circle (9).
2. O type circle selfsealings safety check as claimed in claim 1, is characterized in that: described valve gap (2) adopts stud to be connected with described valve body (1).
3. O type circle selfsealings safety check as claimed in claim 1, is characterized in that: described valve gap (2) is with bolts with described valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520825898.6U CN205101633U (en) | 2015-10-26 | 2015-10-26 | O type circle self sealss check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520825898.6U CN205101633U (en) | 2015-10-26 | 2015-10-26 | O type circle self sealss check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205101633U true CN205101633U (en) | 2016-03-23 |
Family
ID=55517415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520825898.6U Active CN205101633U (en) | 2015-10-26 | 2015-10-26 | O type circle self sealss check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205101633U (en) |
-
2015
- 2015-10-26 CN CN201520825898.6U patent/CN205101633U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 215000 Wujiang Economic Development Zone, Jiangsu, Ganquan West Road, No. 666, No. Patentee after: Davy valve casting (Suzhou) Limited by Share Ltd Address before: 215000 No. 666 Ganquan West Road, Wujiang economic and Technological Development Zone, Suzhou, Jiangsu Patentee before: Dewei (Suzhou) Co., Ltd. valve casting |