CN2697392Y - Hydraulic clean water valve of water isolation pump - Google Patents
Hydraulic clean water valve of water isolation pump Download PDFInfo
- Publication number
- CN2697392Y CN2697392Y CN 200420010769 CN200420010769U CN2697392Y CN 2697392 Y CN2697392 Y CN 2697392Y CN 200420010769 CN200420010769 CN 200420010769 CN 200420010769 U CN200420010769 U CN 200420010769U CN 2697392 Y CN2697392 Y CN 2697392Y
- Authority
- CN
- China
- Prior art keywords
- valve
- oil cylinder
- sealing
- spool
- elastic wear
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 238000002955 isolation Methods 0.000 title claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 238000010926 purge Methods 0.000 claims description 10
- 239000012535 impurity Substances 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000004576 sand Substances 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 2
- 210000000078 claw Anatomy 0.000 abstract 1
- 239000002002 slurry Substances 0.000 description 10
- 239000003921 oil Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
A hydraulic clean water valve of a water isolation pump. The structure is as follows: the upper part of the valve body is provided with an oil cylinder, a piston in the oil cylinder is connected with the valve rod, and a valve core provided with a guide claw below the oil cylinder is connected with the lower part of the valve rod. The valve is characterized in that the contact surfaces of the valve seat and the valve core adopt conical sealing contact surfaces, so that the influence of impurities such as mud and sand on the sealing surfaces is reduced, the downward pressure of a paddle body is effectively utilized to enable the two sealing surfaces to be in closer contact, the valve core is provided with an elastic wear-resistant pad, and the contact surfaces of the elastic wear-resistant pad and the valve seat adopt contact surfaces with the same conicity as that of the valve core, so that the sealing performance is further enhanced, the impact of the valve core on the valve seat can be relieved when the valve rod moves downwards, the friction and the impact are reduced, and the service life is prolonged. The utility model is not only simple in structure, sealing performance is good, and operating pressure is stable, can ensure the normal work of this valve, moreover, has also prolonged the maintenance cycle greatly, has ensured the job schedule.
Description
Technical field
The utility model relates to a kind of hydraulic pressure purge valve, the water isolation pump hydraulic pressure purge valve that particularly a kind of computer program controlled automatically remote slurry transporting system is used.
Background technique
Usually, the hydraulic pressure purge valve that is used for fields such as military project, mine, scarcely be suitable for using taking out in sand, dyke strengthening, the desilting engineering of the Yellow River, field, the Changjiang river, a kind of hydraulic pressure purge valve was once arranged, and its structure is: the top of valve body is provided with an oil cylinder, and, in-oil cylinder piston is connected with valve rod, and its spool that is arranged with guide grab is connected the bottom of valve rod, and during work, it is to order about the upper and lower motion of piston and drive the keying that spool is controlled this valve by valve rod by hydraulic pressure.Because the spool of this valve is the sealing surface that two horizontal planes contact and constitute with the sealing surface of valve body lower portion valve base chamber, so make when being used to carry when containing the bigger slurry of silt particle, fine aggregate amount, be subjected to the influence of impurity such as silt particle, sealability is descended, silt particle in the working procedure, fine aggregate are to the wearing and tearing of valve body in addition, will make sealing poorer, and the leakage of slurry is flow backwards slurry, working pressure is affected, the instability that causes the plasma discharge amount makes its not only efficient reduction, and, maintenance cycle is shortened, influence job schedule.
The model utility content
The utility model is the deficiency that exists in the above-mentioned background technology, and a kind of good seal performance is provided, and can guarantee that working pressure is unaffected, and is suitable for carrying the water isolation pump hydraulic pressure purge valve of the big slurry of impurity content such as silt particle.
Its concrete solution is: valve seat and spool surface of contact adopt the cone seal surface of contact, reduce the influence of impurity such as silt particle to sealing surface with this, and effectively utilize the downward pressure of slurry two sealing surfaces are more closely contacted, and increase sealability greatly.
In addition then, described spool is provided with the elastic wear-resisting pad, and, the sealing contact surface of this elastic wear-resisting pad and employing of valve seat sealing contact surface and the same tapering of spool is with in further enhanced leaktightness performance, can when valve rod is descending, relax the impact of spool again to valve seat, reduce friction and clash into, improve working life.
Moreover described elastic wear-resisting pad is an elastic wear-resisting rubber pad.
The utility model is because the sealing surface structure of taper is adopted in the sealing between the two of valve seat and spool, and spool is provided with the elastic wear-resisting pad, make it not only simple in structure, good seal performance, working pressure is stable, can guarantee the proper functioning of this valve, and, also prolong maintenance cycle greatly, guaranteed job schedule.It is real to be a kind of water isolation pump hydraulic pressure purge valve that uses in sand, dyke strengthening, the remote slurry transporting system of desilting engineering of taking out that is suitable in the Yellow River, field, the Changjiang river.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
In the accompanying drawing, oil cylinder 7 is arranged on the top of valve body 6, and the piston 8 in the oil cylinder 7 is connected with valve rod 9, and the spool 3 with guide grab 1 is connected with the bottom of valve rod 9.The inwall of the cone shape hole on the valve seat 2 is a sealing contact surface, and spool 3 and pressured lid 5 are connected the cone seal surface of contact of elastic wear-resisting pad 4 both formations on the spool 3 by bolt and the sealing contact surface of valve seat 2 constitutes sealed faying face, and described elastic wear-resisting pad is an elastic wear-resisting rubber pad.
During work, when oil duct A injects hydraulic oil in oil cylinder 7, it is up that piston 8 drives valve rod 9, spool 3 is opened, slurry can enter in the valve along direction shown in the arrow C, and discharge along arrow D direction, switch circulation time (program control computer switching), in oil cylinder 7, inject hydraulic oil through oil duct B, it is descending that piston 8 drives valve rod 9, spool 3 drops in the taper hole of valve seat 2, and the sealing contact surface of spool and the sealing contact surface of spool 3 and elastic wear-resisting pad 4 are combined closely, thereby realizes that close port makes the purpose that slurry can not adverse current.And the influence that is subjected to the slurry down pressure can make sealing tighter, and simultaneously, the elastic wear-resisting sealing surface also can relax the impact of spool to valve seat, reduce friction and clash into, and the accuracy of the guide grab of spool bottom close port when having guaranteed that whole spool is descending.
Claims (3)
1, a kind of water isolation pump hydraulic pressure purge valve, its structure is: the top of valve body (6) is provided with an oil cylinder (7), and, in-oil cylinder piston (8) is connected with valve rod (9), and spool (3) is connected the bottom of valve rod (9), it is characterized in that the valve seat (2) of valve body lower portion and spool (3) two surface of contact adopt the cone seal surface of contact.
2, water isolation pump hydraulic pressure purge valve according to claim 1, it is characterized in that described spool (3) is provided with elastic wear-resisting pad (4), and both sealing contact surfaces of this elastic wear-resisting pad (4) and valve seat (2) adopt the sealing contact surface with the same tapering of spool (3).
3, water isolation pump hydraulic pressure purge valve according to claim 1 and 2 is characterized in that described elastic wear-resisting pad (4) is an elastic wear-resisting rubber pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420010769 CN2697392Y (en) | 2004-04-30 | 2004-04-30 | Hydraulic clean water valve of water isolation pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420010769 CN2697392Y (en) | 2004-04-30 | 2004-04-30 | Hydraulic clean water valve of water isolation pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2697392Y true CN2697392Y (en) | 2005-05-04 |
Family
ID=34768405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420010769 Expired - Fee Related CN2697392Y (en) | 2004-04-30 | 2004-04-30 | Hydraulic clean water valve of water isolation pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2697392Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106275459A (en) * | 2016-08-31 | 2017-01-04 | 深圳市莲花百川科技有限公司 | A kind of easy assembling type motor of many rotors |
| CN106286868A (en) * | 2016-10-17 | 2017-01-04 | 沈阳大学 | A kind of purge valve sealing device of water isolation pump |
| CN109812585A (en) * | 2019-02-22 | 2019-05-28 | 林方杰 | A kind of anti-blocking sewage conduct valve |
-
2004
- 2004-04-30 CN CN 200420010769 patent/CN2697392Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106275459A (en) * | 2016-08-31 | 2017-01-04 | 深圳市莲花百川科技有限公司 | A kind of easy assembling type motor of many rotors |
| CN106286868A (en) * | 2016-10-17 | 2017-01-04 | 沈阳大学 | A kind of purge valve sealing device of water isolation pump |
| CN109812585A (en) * | 2019-02-22 | 2019-05-28 | 林方杰 | A kind of anti-blocking sewage conduct 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 |