CN102003555A - Check valve for preventing leakage of oil tank - Google Patents
Check valve for preventing leakage of oil tank Download PDFInfo
- Publication number
- CN102003555A CN102003555A CN 201010600875 CN201010600875A CN102003555A CN 102003555 A CN102003555 A CN 102003555A CN 201010600875 CN201010600875 CN 201010600875 CN 201010600875 A CN201010600875 A CN 201010600875A CN 102003555 A CN102003555 A CN 102003555A
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- valve
- valve body
- boss
- spring
- loam cake
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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention discloses a check valve for preventing leakage of an oil tank, which relates to the technical field of manufacture of valves and comprises an upper cover, a bottom bracket, a valve core, a valve sheet, a clamp and a spring, wherein the upper cover is connected with the upper end of a valve body; the bottom bracket is connected with the lower end of the valve body; the spring is arranged between the valve core and the bottom bracket; the valve sheet is fixedly connected to the upper top end of the valve core; the clamp is sleeved on the upper part of the valve body; a through hole is arranged in the center of the upper end surface of the valve body; through holes are respectively arranged in the centers of the upper cover and the bottom bracket; a metal head valve is arranged between the upper end surface of the valve body and the upper cover; the metal head valve is a circular plate; a circular boss is arranged in the middle of the circular plate; at least two through holes and at least three convex claws are uniformly distributed on the circular plate on the periphery of the circular boss; the height of the convex claws is larger than that of the boss; and the circular boss and the convex claws face the valve body. The check valve can be used for cutting an oil path in proper time, eliminating hidden danger of vehicle safety accidents caused by leakage of oil, and reducing the volatilization of gasoline so that the automobile emission achieves national standards.
Description
Technical field
The present invention relates to a kind of manufacturing technology field of valve, particularly a kind of manufacturing technology field that is used for the safety check on the fuel tanks of automobile.
Background technique
Existing fuel tank anti-leak safety check, comprise valve body, loam cake, collet, valve block, spool, spring, clip, described loam cake is connected the upper end of described valve body, described collet is connected the lower end of described valve body, described spool is arranged in the described valve body, the top fixedly installs valve block on described spool, described clip is arranged between described valve body and the loam cake, middle part at described loam cake and collet is provided with through hole respectively, middle part in the upper-end surface of described valve body is provided with through hole, above-mentioned valve member is uncontrollable gasoline volatilization amount under normal operating condition, state III exhaust index is not up to standard, and existing head valve device can be controlled the gasoline volatilization amount under normal operating condition, and head valve is opened when tank pressure reaches design objective, thereby minimizing gasoline volatilization, raising can reach state III and the requirement of state IV exhaust index.
Summary of the invention
The invention provides a kind of fuel tank anti-leak safety check, purpose is that purpose is to make after the vehicle run-off the straight in travelling, can not cause because of oil plant leaks the Security accident to take place and solve to have valve member now and discharge substandard defective.
The present invention includes valve body, loam cake, collet, spool, valve block, clip, spring, described loam cake is connected the upper end of described valve body, described collet is connected the lower end of described valve body, described spool is arranged in the described valve body, between described spool and collet, spring is set, described valve block is fixedly connected on the last top of described spool, top at described valve body is nested with clip, described clip is arranged on the below of described loam cake, the center of the upper-end surface of described valve body is provided with through hole, the center of described loam cake and collet is respectively equipped with through hole, between the upper-end surface of described valve body and loam cake, the metal head valve is set, described metal head valve is a plectane, middle part at described plectane is provided with round boss, uniform at least two through holes on the plectane of the periphery of described round boss, uniform at least three dogs on the plectane of the periphery of described boss, the height of described dog is greater than the height of described boss, described round boss, dog is towards valve body.
The utility model is mounted in the Rollover vent valve on the fuel tanks of automobile, it can guarantee that vehicle can discharge the gasoline vapor of enough vehicle operatings in real time in motion from fuel tank generally speaking, when fuel tank satisfies certain pressure, inclination of vehicle satisfies under the situation at certain angle of inclination, this valve can guarantee the unimpeded of fuel tank oil circuit, surpass the relevant pressure warning line and work as the fuel tank vapor pressure, when the inclination of vehicle angle surpasses specified security standpoint, this valve can cut off oil circuit in good time, gets rid of the hidden danger that the vehicle safety incidents takes place because of the oil plant leakage.
The utility model is provided with the metal head valve above the valve member through hole, this metal head valve has been realized 0.5～1L/Min micrometeor under the 4Kpa, 8.4～11.7L/Min under the 7Kpa, the requirement of 13.2～16.5L/Min flow under the 15Kpa, the different demands of oil circuit fuel delivery that caused because of the power demand difference when having satisfied vehicle driving; Its working principle is that the gas that is lower than 4Kpa pressure is not enough to back down the metal head valve, and this moment, gas communication was by the about 0.5mm of sectional area between head valve and valve body vent
2Breach, and after pressure met and exceeded 7Kpa, head valve was backed down fully, this moment, gas flow depended on the size in ventilation footpath and pressure between valve fully, the design of metal head valve has reduced gasoline volatilization, makes the discharge amount of automobile be up to state standards.
The diameter of the through hole at middle part, valve body of the present invention upper-end surface is 1.56～1.6mm.
Spool weight of the present invention is 6.1～6.2g.
The free length of spring of the present invention is 20～40mm; When it was compressed to 15mm, elastic force was between 0.02 ± 0.004N; When length of spring compressed arrived 8mm, elastic force was less than 0.056N.
The weight of metal head valve of the present invention is 2.7～2.8g.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is a kind of structural representation of metal head valve of the present invention.
Fig. 3 is the another kind of structural representation of metal head valve of the present invention.
Among the figure, 1, valve body, 2, loam cake, 3, collet, 4, spool, 5, spring, 6, clip, 7, valve block, 8, the metal head valve, 9, through hole, 10, through hole, 11, through hole, 12, boss, 13, dog, 14, through hole.
Embodiment
As shown in Figure 1, this fuel tank anti-leak safety check, comprise valve body 1, loam cake 2, collet 4, spool 3, valve block 5, clip 6, spring 7, loam cake 2 is connected the upper end of valve body 1, collet 4 is connected the lower end of valve body 1, spool 3 is arranged in the valve body 1, between spool 3 and collet 4, spring 7 is set, valve block 5 is fixedly connected on the last top of spool 3, be nested with clip 6 on the top of valve body 1, clip 6 is arranged on the below of loam cake 3, the center of the upper-end surface of valve body 2 is provided with through hole 9, the center of loam cake 2 and collet 4 is respectively equipped with through hole 10,11, between the upper-end surface of valve body 1 and loam cake 2, metal head valve 8 is set, metal head valve 8 is a plectane, towards the middle part of the one side of valve body round boss 12 is set at plectane, uniform at least two through holes 14 on the plectane of the periphery of round boss 12, uniform at least three dogs 13 on the plectane of the periphery of boss 12, the height of dog 13 is greater than the height of boss 12.
The diameter of the through hole at the middle part, valve body upper-end surface of this valve is 1.56～1.6mm.
The spool weight of this valve is 6.1～6.2g.
The free length of the spring of this valve is 20～40mm; When it was compressed to 15mm, elastic force was between 0.02 ± 0.004N; When length of spring compressed arrived 8mm, elastic force was less than 0.056N.
The weight of the metal head valve of this valve is 2.7～2.8g.
Claims (5)
1. fuel tank anti-leak safety check, comprise valve body, loam cake, collet, spool, valve block, clip, spring, described loam cake is connected the upper end of described valve body, described collet is connected the lower end of described valve body, described spool is arranged in the described valve body, between described spool and collet, spring is set, described valve block is fixedly connected on the last top of described spool, top at described valve body is nested with clip, described clip is arranged on the below of described loam cake, the center of the upper-end surface of described valve body is provided with through hole, the center of described loam cake and collet is respectively equipped with through hole, it is characterized in that between the upper-end surface of described valve body and loam cake, the metal head valve being set, described metal head valve is a plectane, towards the middle part of the one side of valve body round boss is set at described plectane, uniform at least two through holes on the plectane of the periphery of described round boss, uniform at least three dogs on the plectane of the periphery of described boss, the height of described dog is greater than the height of described boss.
2. fuel tank anti-leak safety check according to claim 1 is characterized in that the diameter of the through hole at middle part, valve body upper-end surface is 1.56～1.6mm.
3. fuel tank anti-leak safety check according to claim 1 is characterized in that spool weight is 6.1～6.2g.
4. fuel tank anti-leak safety check according to claim 1, the free length that it is characterized in that described spring is 20～40mm; When it was compressed to 15mm, elastic force was between 0.02 ± 0.004N; When length of spring compressed arrived 8mm, elastic force was less than 0.056N.
5. fuel tank anti-leak safety check according to claim 1, the weight that it is characterized in that described metal head valve is 2.7～2.8g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010600875 CN102003555A (en) | 2010-12-23 | 2010-12-23 | Check valve for preventing leakage of oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010600875 CN102003555A (en) | 2010-12-23 | 2010-12-23 | Check valve for preventing leakage of oil tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102003555A true CN102003555A (en) | 2011-04-06 |
Family
ID=43811154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010600875 Pending CN102003555A (en) | 2010-12-23 | 2010-12-23 | Check valve for preventing leakage of oil tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102003555A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115264136A (en) * | 2022-08-15 | 2022-11-01 | 东莞利富高塑料制品有限公司 | Safety valve for automobile oil tank |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5518018A (en) * | 1994-11-14 | 1996-05-21 | Stant Manufacturing Inc. | Fuel tank venting control assembly |
| US5666989A (en) * | 1994-11-08 | 1997-09-16 | Stant Manufacturing Inc. | Tank venting control assembly |
| CN1847640A (en) * | 2005-03-22 | 2006-10-18 | 伊顿公司 | Low profile overfill limit device with reverse flow capability |
| CN201121747Y (en) * | 2007-12-07 | 2008-09-24 | 扬州奥力威传感器有限公司 | Anti-turning valve |
| CN101451479A (en) * | 2007-12-07 | 2009-06-10 | 扬州奥力威传感器有限公司 | Gravity valve for vehicle fuel tank |
| CN201973299U (en) * | 2010-12-23 | 2011-09-14 | 江苏奥力威传感高科股份有限公司 | Oil box leakproof check valve |
-
2010
- 2010-12-23 CN CN 201010600875 patent/CN102003555A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5666989A (en) * | 1994-11-08 | 1997-09-16 | Stant Manufacturing Inc. | Tank venting control assembly |
| US5518018A (en) * | 1994-11-14 | 1996-05-21 | Stant Manufacturing Inc. | Fuel tank venting control assembly |
| CN1847640A (en) * | 2005-03-22 | 2006-10-18 | 伊顿公司 | Low profile overfill limit device with reverse flow capability |
| CN201121747Y (en) * | 2007-12-07 | 2008-09-24 | 扬州奥力威传感器有限公司 | Anti-turning valve |
| CN101451479A (en) * | 2007-12-07 | 2009-06-10 | 扬州奥力威传感器有限公司 | Gravity valve for vehicle fuel tank |
| CN201973299U (en) * | 2010-12-23 | 2011-09-14 | 江苏奥力威传感高科股份有限公司 | Oil box leakproof check valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115264136A (en) * | 2022-08-15 | 2022-11-01 | 东莞利富高塑料制品有限公司 | Safety valve for automobile oil tank |
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| 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: 20110406 |