CN203477532U - Self pre-tightening connection type valve - Google Patents
Self pre-tightening connection type valve Download PDFInfo
- Publication number
- CN203477532U CN203477532U CN201320427621.9U CN201320427621U CN203477532U CN 203477532 U CN203477532 U CN 203477532U CN 201320427621 U CN201320427621 U CN 201320427621U CN 203477532 U CN203477532 U CN 203477532U
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- CN
- China
- Prior art keywords
- valve
- flange
- small boss
- valve body
- bolt
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a self pre-tightening connection type valve. The self pre-tightening connection type valve comprises a valve body and a valve hood, wherein a valve body flange is connected with a valve hood flange through a bolt, and a small boss of the valve body and a small boss of the valve hood are correspondingly arranged and are in contact with each other; the small boss of the valve body and the small boss of the valve hood are respectively arranged at the connecting parts of the valve body flange and the valve hood flange. When the valve body flange is connected with the valve hood flange through the bolt, the small boss of the valve body is pressed against the small boss of the valve hood so that both the valve body flange and the valve hood flange are elastically deformed. When the bolt and a nut are loosened, elastic restoration is generated by both the valve body flange and the valve hood flange, and a restoring force is formed to compensate the loosening of the bolt and the nut in the use process, so that a tightening force is applied on the bolt and the nut to prevent the nut from being loosened, and the function of a spring washer in the assembly process is replaced. Therefore, the self pre-tightening connection type valve which is provided by the utility model has the advantages of more convenience in installation and lower cost.
Description
Technical field
The utility model relates to a kind of from pretension jointing type valve.
Background technique
Tradition comprises valve body and valve gap from pretension jointing type valve, and described valve flange is connected by bolt with bonnet flange, during connection, generally all can add that compression spring prevents its nut loosening.But arranging of compression spring increased cost, also increased installation difficulty.
Summary of the invention
Technical problem to be solved in the utility model be to provide a kind of can by from pretension jointing type valve self, provide and tight force compensating from pretension jointing type valve.
For this reason, the utility model provide from pretension jointing type valve, comprise valve body and valve gap, described valve flange is connected by bolt with bonnet flange, the joint of described valve flange and bonnet flange is respectively arranged with valve body small boss and valve gap small boss, described valve body small boss and valve gap small boss are oppositely arranged and are in contact with one another, and valve body small boss mutually pushes up to touch with valve gap small boss and impels described valve flange that resiliently deformable occurs when bolt is connected with bonnet flange.
In the utility model, the joint of valve flange and bonnet flange is respectively arranged with valve body small boss and valve gap small boss, when valve flange and bonnet flange are when with bolts, valve body small boss and valve gap small boss mutually push up and touch, when thereby the flange that makes valve body and valve gap adopts bolt tightening, because pushing mutually, valve body small boss and valve gap small boss there is resiliently deformable, when screw bolt and nut occurs to become flexible, all there is elastic recovery in valve flange and bonnet flange, form a restoring force, in use loosening of compensation screw rod and nut, make bolt and nut obtain one and tight power, prevent nut loosening, replaced the effect of the compression spring in assembly process.Thereby easier for installation from pretension jointing type valve that can make that the utility model provides, cost is lower.
Accompanying drawing explanation
The structure cross-sectional schematic from pretension jointing type valve that Fig. 1 provides for the utility model.
Embodiment
As shown in Figure 1, the utility model provide from pretension jointing type valve, comprise valve body 1 and valve gap 2, described valve flange 3 is connected by bolt with bonnet flange 4, described valve flange 3 is respectively arranged with valve body small boss 5 and valve gap small boss 6 with the joint of bonnet flange 4, valve body small boss 5 is 0.5mm with the height of valve gap small boss 6, described valve body small boss 5 is oppositely arranged and is in contact with one another with valve gap small boss 6, and valve body small boss 5 mutually pushes up to touch with valve gap small boss 6 and impels described valve flange 3, with bonnet flange 4, resiliently deformable occurs when bolt is connected.Valve body small boss 5 is inclined-plane or cambered surface distribution with the cooperation place of valve gap small boss 6, when valve body small boss 5 coordinates with valve gap small boss 6 inclined-planes or cambered surface, can obtain more elastic-restoring force.
Claims (3)
1. one kind from pretension jointing type valve, comprise valve body and valve gap, described valve flange is connected by bolt with bonnet flange, it is characterized in that: the joint of described valve flange and bonnet flange is respectively arranged with valve body small boss and valve gap small boss, described valve body small boss and valve gap small boss are oppositely arranged and are in contact with one another, and valve body small boss mutually pushes up to touch with valve gap small boss and impels described valve flange that resiliently deformable occurs when bolt is connected with bonnet flange.
2. according to claim 1 from pretension jointing type valve, it is characterized in that: the cooperation place of described valve body small boss and valve gap small boss is inclined-plane or cambered surface distributes.
3. according to claim 1 and 2 from pretension jointing type valve, it is characterized in that: the height of valve body small boss and valve gap small boss is 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320427621.9U CN203477532U (en) | 2013-07-18 | 2013-07-18 | Self pre-tightening connection type valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320427621.9U CN203477532U (en) | 2013-07-18 | 2013-07-18 | Self pre-tightening connection type valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203477532U true CN203477532U (en) | 2014-03-12 |
Family
ID=50225863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320427621.9U Expired - Fee Related CN203477532U (en) | 2013-07-18 | 2013-07-18 | Self pre-tightening connection type valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203477532U (en) |
-
2013
- 2013-07-18 CN CN201320427621.9U patent/CN203477532U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20140312 Termination date: 20160718 |