CN204083345U - A kind of low torque soft sealing stopcock - Google Patents
A kind of low torque soft sealing stopcock Download PDFInfo
- Publication number
- CN204083345U CN204083345U CN201420611866.1U CN201420611866U CN204083345U CN 204083345 U CN204083345 U CN 204083345U CN 201420611866 U CN201420611866 U CN 201420611866U CN 204083345 U CN204083345 U CN 204083345U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- stopcock
- valve seat
- low torque
- 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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- Lift Valve (AREA)
Abstract
The utility model discloses a kind of low torque soft sealing stopcock, belong to valve field.This low torque soft sealing stopcock comprises valve body, faucet body, and faucet body is connected with valve rod, and valve rod top is connected with valve body screw thread, is also provided with rolling bearing between valve rod and valve body near faucet body; Described rolling bearing top is provided with block, and stop width is greater than the width of bearing; Described valve body is provided with the limited step of block adaptation; Described faucet body is also glued with valve seat, and valve seat is polytetrafluoroethylmaterial material soft seal, is also provided with sealing compensation mechanism between valve seat and valve body.The utility model New Energy is adopted effectively to solve the problem that stopcock can only be applicable to environment under low pressure.
Description
Technical field
The utility model relates to valve field, specifically a kind of low torque soft sealing stopcock.
Background technique
Stopcock is mainly used in cutting off, connecting and throttle medium, is widely used in oilfield exploitation, conveying and refining equipment, is also widely used in petrochemical industry, chemical industry, coal gas, rock gas, liquefied petroleum gas (LPG), HVAC industry and general industry simultaneously.
State commonly used by stopcock is open in usual, when needs carry out locking to valve time, pulls valve rod, drives the faucet body choosing that upper-end surface is large, lower end surface is little to fill 90 degree, positive closing circulation passage.But in Long-Time Service process, faucet body due to pressure medium high, the moment of keying is large, and faucet body easily weares and teares, and usually can only be used in environment under low pressure.
In order to make stopcock be applicable in more occasions, the keying moment reducing stopcock is just extremely important.
model utility contentthe utility model aims to provide a kind of low torque soft sealing stopcock, reduces to reach the object that stopcock opens and closes moment.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of low torque soft sealing stopcock, comprise valve body, faucet body, it is characterized in that: faucet body is connected with valve rod, valve rod top is connected with valve body screw thread, is also provided with rolling bearing between valve rod and valve body near faucet body; Described rolling bearing top is provided with block, and stop width is greater than the width of bearing; Described valve body is provided with the limited step of block adaptation; Described faucet body is also glued with valve seat, and valve seat is polytetrafluoroethylmaterial material soft seal, is also provided with sealing compensation mechanism between valve seat and valve body.
Further, described sealing compensation mechanism comprises jacking block, spring, and jacking block and the contact surface of valve seat have groove, and spring is arranged in groove;
Further, be provided with between described jacking block and valve body and seal O shape and enclose.
The beneficial effects of the utility model are:
One, on valve rod top with valve body junction for being threaded, the mode be threaded connection, when rotation valve rod, required firmly less.
Two, be also provided with rolling bearing between valve rod and valve body, rolling bearing effectively reduces the frictional force when opening and closing, and reduces and opens and closes moment, makes to be more prone to when opening and closing.
Three, rolling bearing is also provided with block, the width of block is greater than the width of bearing.Limited step on block and valve body with the use of, play and prevent rolling bearing from coming off, and limit the effect that faucet body moves up.
Four, adopt soft PTFE seal valve seat, sealability is better, solves the problem of general stopcock poor sealing performance.
Five, adopt valve seat to seal, change the sealing of the face of common stopcock into linear sealing, sealability is better.
Six, be also provided with sealing compensation mechanism between valve seat and valve body, wear and tear to some extent at soft valve seat, when occurring revealing, energy auto-compensation, makes its sealability again reach requirement.
Seven, in the hypodynamic situation of the pretension of spring, from outside, jacking block can also be held out against inwards, the pretightening force of counterbalance spring.
Accompanying drawing explanation
Fig. 1 is: the structural representation of the stopcock that the utility model provides;
Mark in figure: 1 be valve body, 2 be jacking block, 3 be spring, 4 be valve seat, 5 be faucet body, 6 be limited step, 7 be block, 8 be rolling bearing, 9 be valve rod, 10 be sealing O shape circle.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further.
As shown in Figure 1, a kind of low torque soft sealing stopcock, comprises valve body 1, faucet body 5, valve seat 4, it is characterized in that: faucet body 5 is connected with valve rod 9, and valve rod 9 top is threaded with valve body 1, is also provided with rolling bearing 8 between valve rod 9 and valve body 1 near faucet body 5; Described rolling bearing 8 top is provided with block 7, and block 7 width is greater than the width of bearing; Described valve body 1 is provided with the limited step 6 of block 7 adaptation; Described valve seat 4 is polytetrafluoroethylmaterial material soft seal, is also provided with sealing compensation mechanism between valve seat 4 and valve body 1.Described sealing compensation mechanism comprises jacking block 2, spring 3, and jacking block 2 and valve seat 4 surface of contact have groove, and spring 3 is arranged in groove.Be provided with between described jacking block 2 and valve body 1 and seal O shape and enclose 10.
In use, pull spanner, band ovable valve stem 9 rotates, be threaded between valve rod 9 with valve body 1, prolong screw thread to exert oneself downwards, when rotated, rolling bearing 8 rotates, compared to sliding bearing, can the less frictional force that must reduce between valve rod 9 and valve body 1, rolling bearing 8 is also provided with block 7, block 7 and the limited step 6 on valve body 1 with the use of, play and prevent rolling bearing 8 from coming off, and limit the effect that faucet body 5 moves up.Simultaneously owing to adopting the valve seat 4 of soft seal, specifically adopt polytetrafluoroethylmaterial material, its sealability is better.After valve seat 4, be also provided with spring 3 and jacking block 2, spring 3 is arranged in the groove of jacking block 2.When soft seal has certain wear out failure, spring 3 automatically can hold out against valve seat 4 and to fit faucet body 5, makes it again reach seal request.When the pretightening force of spring 3 is inadequate, hold out against jacking block 2 inwards, the pretightening force of jacking block 2 counterbalance spring 3.The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a low torque soft sealing stopcock, comprises valve body, faucet body, it is characterized in that: faucet body is connected with valve rod, and valve rod top is connected with valve body screw thread, is also provided with rolling bearing between valve rod and valve body near faucet body; Described rolling bearing top is provided with block, and stop width is greater than the width of bearing; Described valve body is provided with the limited step of block adaptation; Described faucet body is also glued with valve seat, and valve seat is polytetrafluoroethylmaterial material soft seal, is also provided with sealing compensation mechanism between valve seat and valve body.
2. low torque soft sealing stopcock according to claim 1, is characterized in that: described sealing compensation mechanism comprises jacking block, spring, and jacking block and the contact surface of valve seat have groove, and spring is arranged in groove.
3. low torque soft sealing stopcock according to claim 2, is characterized in that: be provided with between described jacking block and valve body and seal O shape and enclose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420611866.1U CN204083345U (en) | 2014-10-21 | 2014-10-21 | A kind of low torque soft sealing stopcock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420611866.1U CN204083345U (en) | 2014-10-21 | 2014-10-21 | A kind of low torque soft sealing stopcock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204083345U true CN204083345U (en) | 2015-01-07 |
Family
ID=52176066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420611866.1U Expired - Fee Related CN204083345U (en) | 2014-10-21 | 2014-10-21 | A kind of low torque soft sealing stopcock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204083345U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265944A (en) * | 2014-10-21 | 2015-01-07 | 成都市翻鑫家科技有限公司 | Low-torque flexible sealing plug valve |
-
2014
- 2014-10-21 CN CN201420611866.1U patent/CN204083345U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265944A (en) * | 2014-10-21 | 2015-01-07 | 成都市翻鑫家科技有限公司 | Low-torque flexible sealing plug 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: 20150107 Termination date: 20151021 |
|
| EXPY | Termination of patent right or utility model |