CN2601333Y - Pressure, double-sealed environmental protection valve - Google Patents
Pressure, double-sealed environmental protection valve Download PDFInfo
- Publication number
- CN2601333Y CN2601333Y CN 03200658 CN03200658U CN2601333Y CN 2601333 Y CN2601333 Y CN 2601333Y CN 03200658 CN03200658 CN 03200658 CN 03200658 U CN03200658 U CN 03200658U CN 2601333 Y CN2601333 Y CN 2601333Y
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- China
- Prior art keywords
- valve
- top cover
- seal
- rod
- double
- Prior art date
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- Expired - Fee Related
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- Lift Valve (AREA)
Abstract
The utility model discloses a compacted double-seal environmental valve, which is used in pipelines of water, oil and gas. The utility model comprises a valve body, a cone-shaped valve core and a rotation seal compaction device. The rotation seal compaction device comprises a top cover for the valve, a valve rod and a cap for the valve rod. An O-shaped seal rubber ring is arranged between the valve body and the valve core. A cap for the valve rod is fixed on the valve rod for the valve core and the round disk at lower part is inserted into the top cover for the valve; elastic combination washers are arranged between the upper surface and the lower surface for the round disk of the cap for the valve rod and between the top cover for the valve and the top surface for the valve core, making the rotating round disk of the cap for the valve rod is sealed by the compaction from the elastic combination washers. Because an ''O''-shaped seal is used between the valve body and the cone-shaped valve core, thereby enabling the sealing at the first level. The round disk of the cap for the valve rod inside the rotation seal compaction device is inserted inside the top cover for the valve and is compacted by the elastic combination washers, thus enabling the second level of double-layer sealing, guaranteeing double seal and non-leakage for the valve when the valve core can rotate freely.
Description
Technical field
The utility model relates to a kind of double-sealing environmental protection valve that presses, be used in the water, oil, gas of industry, civil area, the valve of especially poisonous, harmful gas pipeline.
Technical background
At present, the valve that uses on the industrial or civilian water, oil, gas pipeline as stopcock, ball valve or butterfly valve, guarantees when valve core rod passes through top cover that tightness is good, makes packing matcrial with asbestos rope and graphite usually.Because the long-term rotation of valve core rod is used, the sealing material of filling between top cover and the valve core rod usually weares and teares, and valve poorly sealed causes the leakage of water, oil, gas.Especially use leakage poisonous, harmful gas, befouling environment.The leakage of rock gas will cause fire, cause heavy losses for country or people's property.Valve leak on the gas piping, the most serious problem are a kind ofly to be difficult for realizing " chronic leakage ", in case realize, will bring disaster to into immeasurable consequence.
Summary of the invention
The purpose of this utility model solves the leakage problem of above-mentioned valve effectively, and a kind of double-sealing environmental protection valve that presses is provided, and when guaranteeing that spool freely rotates, has excellent sealing performance again, and is pollution-free, safe in utilization, reliable, is a kind of environmentally friendly machine.
The purpose of this utility model is achieved in that a kind of double-sealing environmental protection valve that presses, and includes valve body, and device is pressed in taper valve core and rotary seal.It is characterized in that rotary seal presses device and include the valve top cover, valve rod and valve thimble.The valve top cover is installed on the valve body by screw and by O-ring seal.Spool has one " O " type O-ring seal between valve body and the spool in valve body.Be provided with step trough in the valve body top cover.Spool top is connected with square valve rod, and valve rod passes the valve top cover.Be fixed with a valve thimble on the valve rod, valve thimble top is square sleeve, and it and square valve core rod match, and the bottom is a circular discs.The valve thimble disk is inserted in the valve top cover step trough, is provided with the elasticity bonded washer on disk and between the valve top cover and below the disk and between spool end face and the valve top cover and presses and seal.
The elasticity bonded washer is that several springs are housed in elastic rubbery body, and spring is made by spring steel.
This presses double-sealing environmental protection valve, owing between valve body and the taper valve core one " O " type O-ring seal is arranged, realizes the sealing of first level of valve body and spool.The valve thimble disk that rotary seal is simultaneously pressed in the device is inserted in the step trough of valve top cover, valve thimble disk top and below be subjected to pressing of elasticity bonded washer, make the double-layer seal of realizing second level between valve rod and the valve top cover, good seal performance when guaranteeing that spool freely rotates does not have and leaks.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of elasticity bonded washer.
Wherein device, 61-polyethylene rubber, 62-spring are pressed in 1-valve body, 2-spool, 3-valve rod, 4-valve thimble, 5-valve top cover, 6-elasticity bonded washer, 7-seal washer, 8-" O " type O-ring seal, 9-screw, 10-rotary seal.
Embodiment
A kind of double-sealing environmental protection valve that presses includes valve body 1, and device 10 is pressed in taper valve core 2 and rotary seal.Rotary seal is pressed device 10 and is included valve top cover 5, valve rod 3 and valve thimble 4.Valve top cover 5 is installed on the valve body 1 by screw 9 and by O-ring seal 7.Taper valve core 2 has one " O " type O-ring seal 8 between valve body 1 and the taper valve core 2 in valve body 1.In valve body top cover 5, be provided with step trough.The top of taper valve core 2 is connected with square valve rod 3, and valve rod 3 passes valve top cover 5.Be fixed with a valve thimble 4 on valve rod 3, the top of valve thimble 4 is a square sleeve, and it and square spool valve rod 3 match, and the bottom is a circular discs.The disk of valve thimble 4 is inserted in the step trough of valve top cover 5, be provided with elasticity bonded washer 6 on the disk of valve thimble 4 and between the valve top cover 5 and below valve thimble 4 disks and between spool end face 2 and the valve top cover 5, make above the disk of valve thimble 4 of rotation and below be subjected to elasticity bonded washer 6 and press effect, guarantee sealing between valve thimble 4 and the valve top cover 5, realize the rotation of spool 2 free adjustment.
Elasticity bonded washer 6 is that several springs 62 are housed in elastic rubbery body 61, and spring is made by spring steel.
This presses double-sealing environmental protection valve, owing between valve body 1 and the taper valve core 2 one " O " type O-ring seal is arranged, realizes the sealing of first level.Valve thimble 4 disks that while is pressed device 10 in rotary seal are inserted in the step trough of valve top cover 5, valve top cover 5 and above valve thimble 4 disks and below its disk and be subjected to the effect of pressing of elasticity bonded washer 6 between spool 2 end faces and the valve top cover 5, realize the double-layer seal of second level, and spool 2 can be moved in the free adjustment rotation in valve body 1, realize omnibearing sealing, water, oil, gas and various harmful gas are not leaked, free from environmental pollution, safe and reliable, the utility model can be the environmentally friendly machine of stopcock, ball valve or butterfly valve.
Claims (2)
1, a kind of double-sealing environmental protection valve that presses includes valve body, and device is pressed in taper valve core and rotary seal, it is characterized in that rotary seal presses device and include valve top cover, valve rod and valve thimble; The valve top cover is installed on the valve body by screw and by O-ring seal; Spool has one " O " type O-ring seal between valve body and the spool in valve body; Rotary seal is pressed in the valve body top cover of device and is provided with step trough, be connected with square valve rod on spool top, valve rod passes the valve top cover, be fixed with a valve thimble on the valve rod, valve thimble top is square sleeve, and it and square valve core rod match, and the bottom is a circular discs, the valve thimble disk is inserted in the valve top cover step trough, is provided with the elasticity bonded washer between the top and valve top cover of valve thimble disk and below the valve thimble disk and between spool end face and the valve top cover.
2, the double-sealing environmental protection valve that presses according to claim 1 is characterized in that the elasticity bonded washer is that several springs are housed in elastic rubbery body, spring is made by spring steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03200658 CN2601333Y (en) | 2003-01-06 | 2003-01-06 | Pressure, double-sealed environmental protection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03200658 CN2601333Y (en) | 2003-01-06 | 2003-01-06 | Pressure, double-sealed environmental protection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2601333Y true CN2601333Y (en) | 2004-01-28 |
Family
ID=34157308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03200658 Expired - Fee Related CN2601333Y (en) | 2003-01-06 | 2003-01-06 | Pressure, double-sealed environmental protection valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2601333Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195312A (en) * | 2016-08-18 | 2016-12-07 | 李德生 | Medium through ring protects rotary ball valve |
-
2003
- 2003-01-06 CN CN 03200658 patent/CN2601333Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195312A (en) * | 2016-08-18 | 2016-12-07 | 李德生 | Medium through ring protects rotary ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |