CN102996815A - Anti-leakage plug valve - Google Patents
Anti-leakage plug valve Download PDFInfo
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- CN102996815A CN102996815A CN2012102954617A CN201210295461A CN102996815A CN 102996815 A CN102996815 A CN 102996815A CN 2012102954617 A CN2012102954617 A CN 2012102954617A CN 201210295461 A CN201210295461 A CN 201210295461A CN 102996815 A CN102996815 A CN 102996815A
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- valve
- valve body
- plug
- described valve
- cock
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Abstract
The invention provides an anti-leakage plug valve. An ordinary plug valve is sealed by means of direct contact between an accurately machined metal plug body and a valve body, so that the ordinary plug valve has the defects of poor tightness, high hoisting capacity, is worn easily, and can only be applied to occasions of low calibers (not higher than 1 Mpa) and minor calibers (less than 100 millimeters). Due to poor connecting safety, high-pressure liquids in high-pressure pipelines tend to leak easily. The anti-leakage plug valve comprises a valve body (1), wherein a valve plate (2) is arranged in the valve body; an angle of 50 degrees is formed between the valve plate and the axis of the valve body; a valve core is arranged in the middle of the valve plate; a plug cone (3) which is matched with the valve core is arranged on the valve core, and is connected with a valve rod (4); a plug pressure relief threaded sleeve (5) is arranged on the valve rod; and the plug pressure relief threaded sleeve is connected with a boss (6) of the valve body through a screw thread. The anti-leakage plug valve is taken as a valve.
Description
Technical field
The present invention relates to a kind of valve body, be specifically related to a kind of leakproof stopcock.
Background technique
Stopcock is the rotary valve of closure member or plunger shape, makes passway on the valve plug identical with the passway on the valve body or separate by 90-degree rotation, realizes a kind of valve of opening or closing.It is cylindrical or conical that the shape of the valve plug of stopcock can become.In cylindrical valve plug, passage is generally orthogonal; And in cone-shaped valve plug, passage in echelon.These shapes become lightly the structure of stopcock, but have also produced certain loss simultaneously.Stopcock is suitable for as cutting off and connect medium and shunting applicable most, but according to applicable character and the abrasion-resistance of sealing surface, sometimes also can be used for throttling, common stopcock seals with direct contact the between valve body by accurately machined metal cock body, so sealing is relatively poor, hoisting capacity is large, and easily wearing and tearing usually can only be for the occasion of low (not being higher than 1 MPa) and small-bore (less than 100 millimeters).Because its connection safety is poor, for high pressure pipe line the highly pressurised liquid in the pipeline is released.
Summary of the invention
The objective of the invention is provides a kind of leakproof stopcock for the problem of above-mentioned existence, and compact structure has improved safety and reliability.
Above-mentioned purpose is achieved through the following technical solutions:
The leakproof stopcock, comprise valve body, has valve plate in the described valve body, the axis of described valve plate and described valve body is the 50o angle, have spool in the middle of the described valve plate, the cock centrum that cooperates with it is set on the described spool, described cock centrum connects valve rod, cock release swivel nut is installed on the described valve rod, and described cock release swivel nut is connected with the boss of described valve body by screw thread.
Described leakproof stopcock, described valve body and described valve plate adopt the integrally casting structure.
Described leakproof stopcock, the two ends of described valve body have adpting flange, and the described adpting flange outside has Gask-O-Seal.
Beneficial effect:
1. the axis of valve plate of the present invention and described valve body is the design of 50o angular direction, and the design of this inclination angle is so that the pressure that valve body bears increases greatly, and the application of cock centrum is regulated convenient so that the flow of confined liquid is more accurate.
2. valve body of the present invention and valve plate adopt the integrally casting structure, further strengthen so that valve plate bears the ability of pressure.
3. valve body of the present invention both sides arrange adpting flange, are connected by flange between valve body and the pipeline, for being threaded, it is larger that it bears pressure, long service life, and be provided with especially Gask-O-Seal, make its good sealing effect, be applicable to the conveying of high pressure liquid.
Description of drawings
Fig. 1, structural representation of the present invention.
Among the figure: 1, valve body, 2, valve plate, 3, the cock centrum, 4, valve rod, 5, cock release swivel nut, 6, boss, 7, flange, 8, Gask-O-Seal.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention.
Embodiment 1:
As shown in Figure 1: leakproof stopcock of the present invention, comprise valve body 1, has valve plate 2 in the described valve body, the axis of described valve plate and described valve body is the 50o angle, have spool in the middle of the described valve plate, the cock centrum 3 that cooperates with it is set on the described spool, described cock centrum connects valve rod 4, cock release swivel nut 5 is installed on the described valve rod, and described cock release swivel nut is connected with the boss 6 of described valve body by screw thread.
Embodiment 2:
Above-mentioned leakproof stopcock, described valve body and described valve plate adopt the integrally casting structure.
Embodiment 3:
Above-mentioned leakproof stopcock, the two ends of described valve body have adpting flange 7, and the described adpting flange outside has Gask-O-Seal 8.
By above-mentioned description, the relevant staff can in the scope that does not depart from this invention technological thought, carry out various change and modification fully.Unaccomplished matter of the present invention belongs to those skilled in the art's common practise.
Claims (3)
1. leakproof stopcock, comprise valve body, has valve plate in the described valve body, it is characterized in that: the axis of described valve plate and described valve body is the 50o angle, have spool in the middle of the described valve plate, the cock centrum that cooperates with it is set on the described spool, described cock centrum connects valve rod, cock release swivel nut is installed on the described valve rod, and described cock release swivel nut is connected with the boss of described valve body by screw thread.
2. leakproof stopcock according to claim 1 is characterized in that: described valve body and described valve plate employing integrally casting structure.
3. leakproof stopcock according to claim 1 and 2, it is characterized in that: the two ends of described valve body have adpting flange, and the described adpting flange outside has Gask-O-Seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102954617A CN102996815A (en) | 2012-08-20 | 2012-08-20 | Anti-leakage plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102954617A CN102996815A (en) | 2012-08-20 | 2012-08-20 | Anti-leakage plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102996815A true CN102996815A (en) | 2013-03-27 |
Family
ID=47925761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102954617A Pending CN102996815A (en) | 2012-08-20 | 2012-08-20 | Anti-leakage plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102996815A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063540C (en) * | 1994-12-22 | 2001-03-21 | 刘翰幸 | Valve mechanisms |
| EP1600674A1 (en) * | 2004-05-26 | 2005-11-30 | Luxembourg Patent Company S.A. | Valve for gas cylinder |
| CN201561130U (en) * | 2009-11-09 | 2010-08-25 | 杨文军 | Oil well plug valve |
| CN202732991U (en) * | 2012-08-20 | 2013-02-13 | 苏州孚杰机械有限公司 | Leakproof plug valve |
-
2012
- 2012-08-20 CN CN2012102954617A patent/CN102996815A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063540C (en) * | 1994-12-22 | 2001-03-21 | 刘翰幸 | Valve mechanisms |
| EP1600674A1 (en) * | 2004-05-26 | 2005-11-30 | Luxembourg Patent Company S.A. | Valve for gas cylinder |
| CN201561130U (en) * | 2009-11-09 | 2010-08-25 | 杨文军 | Oil well plug valve |
| CN202732991U (en) * | 2012-08-20 | 2013-02-13 | 苏州孚杰机械有限公司 | Leakproof plug valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130327 |