CN102229320A - Oil spillage cutoff valve - Google Patents
Oil spillage cutoff valve Download PDFInfo
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- CN102229320A CN102229320A CN2011100979935A CN201110097993A CN102229320A CN 102229320 A CN102229320 A CN 102229320A CN 2011100979935 A CN2011100979935 A CN 2011100979935A CN 201110097993 A CN201110097993 A CN 201110097993A CN 102229320 A CN102229320 A CN 102229320A
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- spring
- air extractor
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Abstract
The invention discloses an oil spillage cutoff valve, which comprises a valve body and a total valve cover, wherein the valve body comprises an upper end cover and a valve bottom cover; a sealing element with a first vent is arranged in the middle of the upper end cover; a pressure holding valve is arranged in the total valve cover above the upper end cover; a valve floating core capable of floating up and down is arranged in the valve body; a first spring is arranged between the valve bottom cover and the valve floating core; the middle of the valve floating core is provided with a second vent; a pressure relief valve core is arranged below the second vent, and the pressure relief valve core is arranged in the valve floating core; a second spring is arranged between the pressure relief valve core and the valve floating core; in a stretching state of the second spring, the pressure relief valve core closes the second vent; and when the second spring is compressed, the second vent is conducted through the pressure relief valve core. The oil spillage cutoff valve has the advantages that: when an oil tank is inclined or full of oil, if the pressure in the oil tank exceeds a certain value, the high air pressure bursts through the pressure relief valve core, the second spring is compressed, the second vent in the middle of the valve floating core is conducted, and the gas in the oil tank is exhausted from the second vent, so that normal air pressure in the oil tank is ensured.
Description
Technical field
The present invention relates to a kind of valve body, especially relate to a kind of oil spilling shutoff valve.
Background technology
The oil spilling shutoff valve is installed on the vehicle fuel tank usually, has following effect: 1) during the vehicle fuel tank oiling, make vehicle fuel tank and atmosphere that certain passage be arranged by the overflow shutoff valve; And after vehicle fuel tank was filled with fuel oil, overflow shutoff valve meeting SELF CL prevented that fuel oil from overflowing from the overflow shutoff valve.2) last position of importantly working as Fuel Tank changes (as the vehicle overturning) suddenly, and the overflow shutoff valve can stop fuel oil to flow out.There are the following problems for present oil spilling shutoff valve: when fuel tank tilts or fills it up with oil, under the floating core closed condition of valve, can't adjust the air pressure in the fuel tank.
Summary of the invention
Technical matters to be solved by this invention provides a kind of when fuel tank tilts or fills it up with oil, under the floating core closed condition of valve, can adjust the oil spilling shutoff valve of fuel tank internal gas pressure.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of oil spilling shutoff valve, comprise valve body, described valve body is provided with total valve gap, described valve body comprises upper end cover and valve bottom, be provided with sealing member in the middle of the described upper end cover with first air extractor vent, be provided with pressure holding valve in total valve gap of described upper end cover top, the floating core of the valve that setting can fluctuate in the described valve body, be provided with first spring between the floating core of described valve bottom and described valve, described pressure holding valve cooperates with described sealing member, the floating core of described valve cooperates with described sealing member, it is characterized in that being provided with second air extractor vent in the middle of the floating core of described valve, the below of described second air extractor vent is provided with pressure releasing valve core, described pressure releasing valve core is arranged on the floating in-core of described valve, be provided with second spring between the floating core of described pressure releasing valve core and described valve, under the second spring extended configuration, pressure releasing valve core is closed second air extractor vent, when second length of spring compressed, pressure releasing valve core is with the second air extractor vent conducting.
Described sealing member comprises last annual seat that is positioned at the upper end cover top and the seal ring that is positioned at the upper end cover below, be provided with inserts in the middle of the described seal ring, the floating core of described valve upper end is frustum, described inserts matches with the frustum upper end of the floating core of described valve, described pressure holding valve comprises pressure valve, be provided with the 3rd air extractor vent in the middle of the described pressure valve, be provided with the 3rd spring between described pressure valve and the total valve gap, under the 3rd spring extended configuration, described pressure valve is seated in described going up on the annual seat, under the anticyclonic pressure effect, pressure valve leaves annual seat in fuel tank, and the 3rd spring is compressed.
Described upper end cover is provided with a plurality of four-way pores, and described seal ring outer periphery is equipped with circular groove, and described seal ring covers described four-way pore, and described four-way pore is facing to described circular groove.
The below of described second air extractor vent is provided with annular wall, described annular wall below is provided with the pressure release valve gap, described pressure release valve gap is provided with opening, described annular wall and described pressure release valve gap form cavity, described cavity is communicated with described second air extractor vent, described pressure releasing valve core is arranged in the described cavity, described second spring is arranged between the upper end wall and pressure releasing valve core of cavity, when second spring stretches, pressure releasing valve core is blocked the opening of pressure release valve gap, during second length of spring compressed, the opening of pressure release valve gap is communicated with second air extractor vent.
Described total valve gap is connected on the described valve body with supersonic welding, and described pressure release valve gap is connected on the annular wall with supersonic welding.
Compared with prior art, advantage of the present invention is when fuel tank is filled it up with oil, and the floating core of valve is at the buoyancy float downward of fuel oil, and the frustum upper end of the floating core of valve extend in the inserts, and first air extractor vent is blocked, and can prevent that fuel oil is to outflow.When fuel tank is toppled over, the floating core of valve is in heeling condition, when the floating core degree of dip of valve reaches certain angle (as 90 degree), the elastic force of first spring is greater than the floating decomposing force of core gravity on the spring direction of valve, first spring is with the floating core jack-up of valve, the upper end of the floating core of valve cooperates with inserts, and first air extractor vent is blocked, and can prevent that fuel oil is to outflow.This moment, anticyclonic pressure can be washed pressure releasing valve core open if the pressure in the fuel tank surpasses certain value, second length of spring compressed, and the second air extractor vent conducting in the middle of the floating core of valve, the gas in the fuel tank is discharged from second air extractor vent, guarantees that the air pressure in the fuel tank is normal.
During in the normal oiling of Fuel Tank or with oily process, the floating core of valve falls back to the valve bottom, when tank pressure just often, pressure valve is seated on the annual seat, the gas in extraneous gas and the fuel tank passes through the 3rd air extractor vent and passes in and out.Pressure in fuel tank surpasses certain value, because the 3rd air extractor vent is smaller, air pressure in the fuel tank can't have been arranged fast from the 3rd air extractor vent, therefore air pressure can be washed pressure valve open, the pressure valve seat leaves annual seat, and the 3rd spring is in compressive state, and first air extractor vent directly communicates with the inner chamber of valve gap, gas in the fuel tank can be discharged fast, makes the air pressure in the fuel tank normal.
At the fuel tank internal gas pressure just often, fuel tank keeps normal barometric pressure with outside by the 3rd air extractor vent, but when the fuel tank internal negative pressure, external pressure is washed annular ring open (because the circular groove that is provided with on the annular ring by the four-way pore, the residing annular coil of circular groove divides thinner), extraneous gas is entered in the fuel tank, make the air pressure in the fuel tank normal.Under the normal barometric pressure state, pressure valve be seated under the effect of the 3rd spring sealing member on annual seat, when fuel tank internal air pressure is too high, air pressure is washed pressure valve open, the 3rd spring is in compressive state, air pressure in first air extractor vent on the sealing member and the inner chamber conducting of valve gap, fuel tank is discharged fast.
When fuel tank tilts or fills it up with oil, and the pressure in the fuel tank surpasses certain value, and air pressure is rushed forward pressure releasing valve core, and pressure releasing valve core separates with the pressure release valve gap, second length of spring compressed, and the opening part that gas covers from blowdown valve enters into second air extractor vent and discharges.
Description of drawings
Fig. 1 is a block diagram of the present invention;
Fig. 2 is a cutaway view of the present invention.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
A kind of oil spilling shutoff valve, comprise valve body 1, valve body 1 is provided with total valve gap 2, valve body 1 comprises upper end cover 3 and valve bottom 4, be provided with sealing member 5 in the middle of the upper end cover 3 with first air extractor vent 23, be provided with pressure holding valve in total valve gap 2 of upper end cover 3 tops, the floating core 6 of the valve that setting can fluctuate in the valve body 1, be provided with first spring 7 between the floating core 6 of valve bottom 4 and valve, pressure holding valve cooperates with sealing member 5, and the floating core 6 of valve cooperates with sealing member 5, be provided with second air extractor vent 8 in the middle of the floating core 6 of valve, the below of second air extractor vent 8 is provided with pressure releasing valve core 9, and pressure releasing valve core 9 is arranged in the floating core 6 of valve, is provided with second spring 10 between the floating core 6 of pressure releasing valve core 9 and valve, under second spring, 10 extended configurations, pressure releasing valve core 9 is closed second air extractor vent 8, and when 10 compressions of second spring, pressure releasing valve core 9 is with 8 conductings of second air extractor vent.
Sealing member 5 comprises last annual seat 11 that is positioned at upper end cover 3 tops and the seal ring 12 that is positioned at upper end cover 3 belows, be provided with inserts 13 in the middle of the seal ring 12, floating core 6 upper ends of valve are frustum, inserts 13 matches with the frustum upper end of the floating core 6 of valve, pressure holding valve comprises pressure valve 14, be provided with the 3rd air extractor vent 15 in the middle of the pressure valve 14, be provided with the 3rd spring 16 between pressure valve 14 and the total valve gap 2, under the 3rd spring 16 extended configurations, pressure valve 14 is seated on the annual seat 11, under the anticyclonic pressure effect, pressure valve 14 leaves annual seat 11, the three springs 16 and is compressed in fuel tank.
The below of second air extractor vent 8 is provided with annular wall 19, annular wall 19 belows are provided with pressure release valve gap 20, pressure release valve gap 20 is provided with opening 21, annular wall 19 forms cavity 22 with pressure release valve gap 20, cavity 21 is communicated with second air extractor vent 8, pressure releasing valve core 9 is arranged in the cavity 22, second spring 10 is arranged between the upper end wall and pressure releasing valve core 9 of cavity 22, when second spring 10 stretches, pressure releasing valve core 9 is blocked the opening 21 of pressure release valve gap 20, during 10 compressions of second spring, the opening 21 of pressure release valve gap 20 is communicated with second air extractor vent 8.
Claims (5)
1. oil spilling shutoff valve, comprise valve body, described valve body is provided with total valve gap, described valve body comprises upper end cover and valve bottom, be provided with sealing member in the middle of the described upper end cover with first air extractor vent, be provided with pressure holding valve in total valve gap of described upper end cover top, the floating core of the valve that setting can fluctuate in the described valve body, be provided with first spring between the floating core of described valve bottom and described valve, described pressure holding valve cooperates with described sealing member, the floating core of described valve cooperates with described sealing member, it is characterized in that being provided with second air extractor vent in the middle of the floating core of described valve, the below of described second air extractor vent is provided with pressure releasing valve core, and described pressure releasing valve core is arranged on the floating in-core of described valve, is provided with second spring between the floating core of described pressure releasing valve core and described valve, under the second spring extended configuration, pressure releasing valve core is closed second air extractor vent, and when second length of spring compressed, pressure releasing valve core is with the second air extractor vent conducting.
2. a kind of oil spilling shutoff valve according to claim 1, it is characterized in that described sealing member comprises last annual seat that is positioned at the upper end cover top and the seal ring that is positioned at the upper end cover below, be provided with inserts in the middle of the described seal ring, the floating core of described valve upper end is frustum, described inserts matches with the frustum upper end of the floating core of described valve, described pressure holding valve comprises pressure valve, be provided with the 3rd air extractor vent in the middle of the described pressure valve, be provided with the 3rd spring between described pressure valve and the total valve gap, under the 3rd spring extended configuration, described pressure valve is seated in described going up on the annual seat, in fuel tank under the anticyclonic pressure effect, pressure valve leaves annual seat, and the 3rd spring is compressed.
3. a kind of oil spilling shutoff valve according to claim 2, it is characterized in that described upper end cover is provided with a plurality of four-way pores, described seal ring outer periphery is equipped with circular groove, and described seal ring covers described four-way pore, and described four-way pore is facing to described circular groove.
4. a kind of oil spilling shutoff valve according to claim 1, the below that it is characterized in that described second air extractor vent is provided with annular wall, described annular wall below is provided with the pressure release valve gap, described pressure release valve gap is provided with opening, described annular wall and described pressure release valve gap form cavity, described cavity is communicated with described second air extractor vent, described pressure releasing valve core is arranged in the described cavity, described second spring is arranged between the upper end wall and pressure releasing valve core of cavity, when second spring stretches, pressure releasing valve core is blocked the opening of pressure release valve gap, and during second length of spring compressed, the opening of pressure release valve gap is communicated with second air extractor vent.
5. a kind of oil spilling shutoff valve according to claim 1 is characterized in that described total valve gap is connected on the described valve body with supersonic welding, and described pressure release valve gap is connected on the annular wall with supersonic welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110097993 CN102229320B (en) | 2011-04-19 | 2011-04-19 | Oil spillage cutoff valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110097993 CN102229320B (en) | 2011-04-19 | 2011-04-19 | Oil spillage cutoff valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102229320A true CN102229320A (en) | 2011-11-02 |
| CN102229320B CN102229320B (en) | 2013-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110097993 Expired - Fee Related CN102229320B (en) | 2011-04-19 | 2011-04-19 | Oil spillage cutoff valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102229320B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103358893A (en) * | 2012-03-27 | 2013-10-23 | 比亚迪股份有限公司 | Oil spillage stop valve |
| CN105864477A (en) * | 2016-05-26 | 2016-08-17 | 李天亮 | Pressure valve for fuel tank |
| CN107975451A (en) * | 2016-10-24 | 2018-05-01 | 现代自动车株式会社 | Fuel cut-off equipment |
| CN110397781A (en) * | 2019-07-19 | 2019-11-01 | 九昌新能源技术(镇江)有限公司 | A kind of device of vapour liquid separator and oil tank liquid level control pile-up valve |
| CN111846256A (en) * | 2020-07-29 | 2020-10-30 | 贵州航天精工制造有限公司 | Reverse-flying valve structure of flexible oil tank and installation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05330350A (en) * | 1992-06-03 | 1993-12-14 | Aisan Ind Co Ltd | Fuel outflow preventer of fuel tank for vehicle |
| CN201189819Y (en) * | 2008-03-27 | 2009-02-04 | 高尚玉 | Single-stage gravity valve, double stage gravity valve and multifunction valve |
| CN101876377A (en) * | 2009-04-30 | 2010-11-03 | 比亚迪股份有限公司 | Oil overflow cut-off valve |
| CN201973309U (en) * | 2011-04-19 | 2011-09-14 | 孙达立 | Oil spilling cutoff valve |
-
2011
- 2011-04-19 CN CN 201110097993 patent/CN102229320B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05330350A (en) * | 1992-06-03 | 1993-12-14 | Aisan Ind Co Ltd | Fuel outflow preventer of fuel tank for vehicle |
| CN201189819Y (en) * | 2008-03-27 | 2009-02-04 | 高尚玉 | Single-stage gravity valve, double stage gravity valve and multifunction valve |
| CN101876377A (en) * | 2009-04-30 | 2010-11-03 | 比亚迪股份有限公司 | Oil overflow cut-off valve |
| CN201973309U (en) * | 2011-04-19 | 2011-09-14 | 孙达立 | Oil spilling cutoff valve |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103358893A (en) * | 2012-03-27 | 2013-10-23 | 比亚迪股份有限公司 | Oil spillage stop valve |
| CN103358893B (en) * | 2012-03-27 | 2016-03-02 | 比亚迪股份有限公司 | A kind of oil spill stop valve |
| CN105864477A (en) * | 2016-05-26 | 2016-08-17 | 李天亮 | Pressure valve for fuel tank |
| CN105864477B (en) * | 2016-05-26 | 2019-01-22 | 皑壹汽车科技（上海）有限公司 | A kind of pressure valve for fuel tank |
| CN107975451A (en) * | 2016-10-24 | 2018-05-01 | 现代自动车株式会社 | Fuel cut-off equipment |
| CN107975451B (en) * | 2016-10-24 | 2020-11-10 | 现代自动车株式会社 | Fuel cut-off apparatus |
| CN110397781A (en) * | 2019-07-19 | 2019-11-01 | 九昌新能源技术(镇江)有限公司 | A kind of device of vapour liquid separator and oil tank liquid level control pile-up valve |
| CN111846256A (en) * | 2020-07-29 | 2020-10-30 | 贵州航天精工制造有限公司 | Reverse-flying valve structure of flexible oil tank and installation method |
| CN111846256B (en) * | 2020-07-29 | 2022-08-30 | 贵州航天精工制造有限公司 | Reverse-flying valve structure of flexible oil tank and installation method |
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| Publication number | Publication date |
|---|---|
| CN102229320B (en) | 2013-09-18 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20130918 Termination date: 20210419 |