CN203477477U - Check valve of oil passage - Google Patents
Check valve of oil passage Download PDFInfo
- Publication number
- CN203477477U CN203477477U CN201320412235.2U CN201320412235U CN203477477U CN 203477477 U CN203477477 U CN 203477477U CN 201320412235 U CN201320412235 U CN 201320412235U CN 203477477 U CN203477477 U CN 203477477U
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- China
- Prior art keywords
- spring
- valve body
- groove
- ring
- valve
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- Expired - Fee Related
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Abstract
The utility model relates to a check valve of an oil passage. The check valve comprises the following components of a valve body, a spring and a valve core, wherein one end of the valve body is provided with an oil inlet, the bottom end of the valve core is positioned at the flaring port of the oil inlet in the inner cavity of the valve body, the other end of the valve core is abutted against the compression spring, the other end of the spring is abutted against a retaining ring, the retaining ring is fixedly arranged on the valve body, the peripheral wall of the valve body is provided with a sealing groove, a sealing ring is arranged in the groove, the circumferential working surface, in contact with the flaring port of the oil inlet, of the valve core is provided with a groove, a sealing rubber ring is arranged in the groove, the peripheral wall of the upper end part of the valve core is provided with a guide balance rib, the guide balance rib is integrally connected with the valve core and extends upwards, and the center of the retaining ring is provided with a spring positioning convex part. The check valve has the beneficial effects that 1, the reverse leakage is little, and the backflow of lubricating oil is effectively prevented; 2, the flowing of fluid is stable, and the change of pipeline pressure is little; 3, the valve core is not disengaged from the spring, so the safety and the reliability are realized.
Description
Technical field
The utility model relates to a kind of oil duct one-way valve; for engine lubrication system, stop the lubricant oil at motor some position in shutdown situation to flow back into oil sump, play the instant lubricated effect of motor; by controlling oil mass, can regulate the oil pressure of controlling some lubricant housings in addition.
Background technique
In prior art, oil duct one-way valve is applied on motor, and it uses in car engine lubrication system.Automobile is in operation, and lubricant oil enters into each position of motor by oil pump and is lubricated, and some motor is not installed oil duct one-way valve, and after engine shutdown, lubricant oil all flow back into oil sump; Some motor is equipped with oil duct one-way valve in lubrication system pipeline, stops some position lubricant oil to flow back into oil sump after engine stop, after engine start, can immediately lubricate, not free sluggish, can be exceedingly fast and reach oil pressure requirement.Prior art is the one-way valve of steel ball type, but this structure reverse leakage is larger, and steel ball easily swings and disengaging spring, causes and does not have reverse cut-off effect and oil pressure abnormal problem.
Summary of the invention
The purpose of this utility model is by adopting plunger type to design, adopt seal ring sealing means, improved reverse sealing, having guaranteed the reverse leakage amount requirement of product, has eliminated the oil pressure abnormal problem that steel ball swings and disengaging spring causes.
The utility model solves the technological scheme that its technical problem adopts: a kind of oil duct one-way valve, constituent elements comprises valve body, spring, spool, valve body one end is filler opening, filler opening enlarging place in the inner chamber of spool bottom in valve body, other end is resisted against on a Compress Spring, the other end of spring is resisted against on back-up ring, back-up ring is fixed on valve body, the periphery wall of valve body is provided with sealed groove, seal ring is set in groove, the ring week working surface that described spool contacts with filler opening enlarging is provided with groove, O-ring seal is set in groove, the upper end portion periphery wall of spool is provided with back-up ring centre described in spool disjunctor upwardly extending guiding balance muscle and is designed with spring positioning convex.
Described spool is provided with spring positioning groove against one end centre of spring, has the locating column wearing for spring in groove.
Described valve body periphery wall is provided with two seals groove and two seals circle.
Described back-up ring and valve body are fixed by riveted joint.
The beneficial effect of the design's structure is:
1. oppositely sealing adopts seal with elastometic washer, and product reverse leakage is little, effectively plays the effect that prevents that lubricant oil from refluxing.
2. flow of fluid is stable, and pipeline pressure changes little.
3. spool can not depart from spring, has stopped steel ball in steel ball structure and has easily departed from the accidental damage that spring causes motor.
Accompanying drawing explanation
Fig. 1 is prior art oil duct one-way valve structures sectional drawing;
Fig. 2 is the utility model oil duct one-way valve sectional drawing.
In figure, 1. nozzle, 2. spring, 3. steel ball, 4. valve body, 5. rubber ring, 6. valve body, 7. back-up ring, 8. spring, 9. spool, 10. small rubber circle, 11. large rubber rings.
1. nozzle, 2. spring, 3. steel ball, 4. valve body, 5. rubber ring.
In Fig. 2,1. valve body, 2. back-up ring, 3. spring, 4. spool, 5. small rubber circle, 6. large rubber ring.
Embodiment
A kind of oil duct one-way valve, constituent elements has valve body 6, back-up ring 7, spring 8, spool 9, small rubber circle 10, large rubber ring 11, adopt the structure of spool 9 to be: head cover has small rubber circle 10, spool 9 is designed with spring 8 locating slots, spool 9 edge designs have guiding balance muscle, and back-up ring 7 is designed with spring 8 positioning convex.First spring 8 is inserted in the spring locating slot of spool 9, then puts into together valve body 6 inner chambers, then back-up ring 7 is put into valve body 6, the spring positioning convex of back-up ring 7 inserts in spring 8, finally back-up ring 7 is riveted on valve body 1.
Claims (5)
1. an oil duct one-way valve, constituent elements comprises valve body, spring, spool, valve body one end is filler opening, filler opening enlarging place in the inner chamber of spool bottom in valve body, other end is resisted against on a Compress Spring, the other end of spring is resisted against on back-up ring, back-up ring is fixed on valve body, the periphery wall of valve body is provided with sealed groove, seal ring is set in groove, it is characterized in that the ring week working surface that described spool contacts with filler opening enlarging is provided with groove, O-ring seal is set in groove, the upper end portion periphery wall of spool is provided with and spool disjunctor upwardly extending guiding balance muscle.
2. a kind of oil duct one-way valve as claimed in claim 1, is characterized in that described back-up ring centre is designed with spring positioning convex.
3. a kind of oil duct one-way valve as claimed in claim 1, is characterized in that described spool is provided with spring positioning groove against one end centre of spring, has the locating column wearing for spring in groove.
4. a kind of oil duct one-way valve as claimed in claim 1, is characterized in that described valve body periphery wall is provided with two seals groove and two seals circle.
5. a kind of oil duct one-way valve as claimed in claim 1, is characterized in that described back-up ring and valve body fix by riveted joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320412235.2U CN203477477U (en) | 2013-07-11 | 2013-07-11 | Check valve of oil passage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320412235.2U CN203477477U (en) | 2013-07-11 | 2013-07-11 | Check valve of oil passage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203477477U true CN203477477U (en) | 2014-03-12 |
Family
ID=50225808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320412235.2U Expired - Fee Related CN203477477U (en) | 2013-07-11 | 2013-07-11 | Check valve of oil passage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203477477U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179754A (en) * | 2015-10-23 | 2015-12-23 | 浙江摩多巴克斯科技股份有限公司 | Integrated plug for internal high pressure |
| CN107310872A (en) * | 2017-07-31 | 2017-11-03 | 辽宁地质工程职业学院 | Fusing soldering welder oil storage tank or oil storage barrel fuel tap and its oil storage tank, oil storage barrel and oil syringe |
-
2013
- 2013-07-11 CN CN201320412235.2U patent/CN203477477U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179754A (en) * | 2015-10-23 | 2015-12-23 | 浙江摩多巴克斯科技股份有限公司 | Integrated plug for internal high pressure |
| CN107310872A (en) * | 2017-07-31 | 2017-11-03 | 辽宁地质工程职业学院 | Fusing soldering welder oil storage tank or oil storage barrel fuel tap and its oil storage tank, oil storage barrel and oil syringe |
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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 |
Granted publication date: 20140312 Termination date: 20210711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |