CN109944952A - A kind of fuel tank control valve - Google Patents
A kind of fuel tank control valve Download PDFInfo
- Publication number
- CN109944952A CN109944952A CN201910354488.0A CN201910354488A CN109944952A CN 109944952 A CN109944952 A CN 109944952A CN 201910354488 A CN201910354488 A CN 201910354488A CN 109944952 A CN109944952 A CN 109944952A
- Authority
- CN
- China
- Prior art keywords
- sealing cover
- gasket
- float
- boss
- fuel tank
- 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.)
- Pending
Links
- 239000002828 fuel tank Substances 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 68
- 230000007423 decrease Effects 0.000 claims abstract description 15
- 239000011324 bead Substances 0.000 claims description 5
- 230000014759 maintenance of location Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000000295 fuel oil Substances 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Abstract
The invention discloses a kind of fuel tank control valves in valve field, including being arranged in the intracorporal float of valve, body top offers gas vent, valve body-side offers inlet opening, float top surface is equipped with sealing cover, buoy top periphery is arranged with support frame, support frame center is equipped with and sealing cover, the gasket of gas vent cooperation, gasket center offers venthole, horn-like structure is processed at the top and bottom of gasket, the top of gasket is matched with gas vent, the bottom of gasket and sealing cover cooperate, sealing cover is movably arranged on buoy top through pushing and pulling component, push-and-pull component when float rises to push sealing cover to move upwards, the side of sealing cover pulls its decline when float declines, the present invention can stablize the disengaging for realizing gasket and gas vent by the push-and-pull component of design, no longer influenced by internal and external pressure difference , to improve the reliability that valve body uses, can be used in fuel tank.
Description
Technical field
The present invention relates to a kind of valve, in particular to a kind of FLVV valve.
Background technique
Fuel tank control valve (FLVV valve) is mounted on the top of fuel tank assembly, and fuel tank control valve includes that setting exists in the prior art
The intracorporal float of valve, gas vent is offered at the top of valve body, and the gasket of the top setting and gas vent cooperation of float floats
Son rises under fuel oil buoyancy with liquid level, so that gasket closes gas vent, when fuel liquid level decline, float is in weight
The lower decline of power effect completes ventilation so that gasket and gas vent are detached from, disadvantage is that, since gasket is being closed
Internal and external pressure difference can be generated when gas vent causes gasket that cannot be detached from time, to influence normal exhaust.
Summary of the invention
The object of the present invention is to provide a kind of fuel tank control valves, so that gasket can be separated with gas vent in time, so that
It ventilates more smooth, guarantees the reliability that valve uses.
The object of the present invention is achieved like this: a kind of fuel tank control valve, including is arranged in the intracorporal float of valve, valve body
Top offers gas vent, and valve body-side offers inlet opening, and oilhole is unloaded in the bottom setting of valve body, and the float top surface is equipped with
Sealing cover, the buoy top periphery are arranged with support frame, and support frame center is equipped with to be cooperated with the sealing cover, gas vent
Gasket, gasket center offer venthole, and horn-like structure is processed at the top and bottom of the gasket, described close
The top of packing is matched with the gas vent, and the bottom of gasket and the sealing cover cooperate, and the sealing cover is through push-and-pull group
Part is movably arranged on buoy top, and the push-and-pull component when float rises to push sealing cover to move upwards, float decline
When from the avris of sealing cover pull its decline.
When the present invention refuels, the liquid level in fuel tank rises, and fuel oil enters from the inlet opening of valve body-side, and float is in buoyancy
Rise under effect as liquid level rises, float, which rises, drives gasket to rise, while sealing the bottom of hd top face and gasket
It fitting together to form first of sealing, when the top and gas vent periphery of pad to be sealed fit together, float no longer rises,
At this point, forming second sealing at the top of gasket with gas vent periphery, the closing of gas vent is completed, while completion of refueling, work as combustion
When liquid level in fuel tank declines, float declines with the decline of liquid level, since there are pressure differences inside and outside fuel tank, seals at this time
Lid can under the effect of the pressure keep state be sucked, at this point, float pulled downward under the effect of gravity along the side of sealing cover it is close
Capping, so that the side of sealing effectiveness lid and gasket is first unfolded into ventilative seam, and progressively disengages with gasket, and inside and outside ventilation is real
Existing pressure balance, pressure difference are eliminated, so that gasket can normally be detached from gas vent, realize exhaust.Compared with prior art, this hair
Bright beneficial effect is that the present invention can stablize the disengaging for realizing gasket and gas vent by the push-and-pull component of design, no longer
It is influenced by internal and external pressure difference, to improve the reliability that valve body uses.
It is further limited as of the invention, the push-and-pull component includes the pillar for being fixed on float end face center, pillar
On be provided with boss, the top surface of the float is additionally provided with a pair of of guide rod, and downslide can be gone up by being provided on two guide rods
Dynamic bracket, two stands are fixed on the bottom of sealing cover, and the bottom of two brackets is machined with the flanging to bend inwards, and two foldings
Side is different from boss bottom surface distance, and the bottom surface of the boss and the flanging cooperate, and drives sealing cover to pull downward on flanging
Decline is separated with gasket, the flanging and boss bottom surface there are free gap, the top surface of boss and the bottom surface of sealing cover,
Sealing cover to be jacked up.For boss when rising with float, top jacks up sealing cover, is bonded it with gasket bottom, then
Gasket is jacked up, is bonded with gas vent periphery at the top of gasket, boss when declining with float, boss bottom elder generation with it is close
Bracket contact realize and be detached from so that the side stress of sealing cover, sealing cover and gasket are torn from side.
It is further limited as of the invention, the boss is the frustum of a cone, is set on the bracket close to the side of guide rod
It is equipped with a pair of of clamping plate, the clamping plate can be slided up and down along guide rod.When sealing cover is installed, the clamping plate of stent side portion need to be only aligned
Guide rod presses down on sealing cover along frustum of a cone side wall, and under the action of frustum of a cone sloped sidewall, bracket is strutted to two sides, to
When the flanging of frame bottom slides to frustum of a cone bottom, the installation of sealing cover is completed.
It is further limited as of the invention, the boss is the frustum of a pyramid, is set on the bracket close to the side of guide rod
It is equipped with a pair of of clamping plate, the clamping plate can be slided up and down along guide rod.When sealing cover is installed, the clamping plate of stent side portion need to be only aligned
Guide rod presses down on sealing cover along frustum of a pyramid side wall, and under the action of frustum of a pyramid sloped sidewall, bracket is strutted to two sides, to
When the flanging of frame bottom slides to frustum of a pyramid bottom, the installation of sealing cover is completed.
Shaking is generated when cooperating in order to avoid sealing cover and boss, the bottom surface of the sealing cover is provided with matches with the boss
The retention bead of conjunction.
In order to enable support frame and float assembly are more convenient, the float top surface is additionally provided with a pair of of hook plate, the branch
The otic placode of the setting of support periphery and hook plate cooperation.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Fig. 2 is internal structure cross-sectional view of the present invention.
Fig. 3 is enlarged drawing at A in Fig. 2.
Fig. 4 is support frame structure diagram in the present invention.
Fig. 5 is sealing cover and supporting structure schematic diagram in the present invention.
Fig. 6 is the Floater Structure schematic diagram of embodiment one.
Fig. 7 is the Floater Structure schematic diagram of embodiment two.
Wherein, 1 valve body, 1a inlet opening, 1b gas vent, 2 floats, 3 support frames, 4 gaskets, 4a venthole, 5 sealing covers,
5a retention bead, 6 brackets, 6a flanging, 7 boss, 8 guide rods, 9 hook plates, 10 otic placodes, 11 clamping plates, 12 pillars.
Specific embodiment
Embodiment 1
A kind of fuel tank control valve as shown in figures 1 to 6, including the float 2 being arranged in valve body 1, the row of offering at the top of valve body 1
Stomata 1b, 1 side of valve body offer inlet opening 1a, and 1 bottom of valve body, which offers, unloads oilhole, and 2 top surface of float is equipped with sealing cover 5,
2 top peripheral of float is arranged with support frame 3, and 3 center of support frame is equipped with the gasket 4 with sealing cover 5, gas vent 1b cooperation,
4 center of gasket offers venthole 4a, and the top and bottom of gasket 4 are processed into horn-like structure, the top of gasket 4
It is matched with gas vent 1b, the bottom of gasket 4 and sealing cover 5 cooperate, and sealing cover 5 is movably arranged on float 2 through pushing and pulling component
Top, push-and-pull component when float 2 rises to push sealing cover 5 to move upwards, one layback of sealing cover 5 when float 2 declines
Its decline is moved, push-and-pull component includes the pillar 12 for being fixed on 2 end face center of float, boss 7 is provided on pillar 12, float 2
Top surface is additionally provided with a pair of of guide rod 8, and the bracket 6 that can slide up and down is provided on two guide rods 8, and two stands 6 are fixed on close
The bottom of capping 5, the bottom of two stands 6 is machined with the flanging 6a to bend inwards, and two flanging 6a and 7 bottom surface of boss distance are not
Together, the bottom surface of boss 7 and flanging 6a cooperate, and drive the decline of sealing cover 5 to separate with gasket 4 to pull downward on flanging 6a, roll over
There are free gaps with 7 bottom surface of boss by side 6a, jack up sealing cover 5 when the top surface of boss 7 moves upwards, and boss 7 is the frustum of a cone,
Side on bracket 6 close to guide rod 8 is provided with a pair of of clamping plate 11, and clamping plate 11 can be slided up and down along guide rod 8, sealing cover 5
Bottom surface is provided with the retention bead 5a cooperated with boss 7, and 2 top surface of float is additionally provided with a pair of of hook plate 9, the setting of 3 periphery of support frame
The otic placode 10 cooperated with hook plate 9.
Embodiment 2
A kind of fuel tank control valve as shown in Fig. 1-5,7 offers at the top of valve body 1 including the float 2 being arranged in valve body 1
Gas vent 1b, 1 side of valve body offer inlet opening 1a, and 1 bottom of valve body, which offers, unloads oilhole, and 2 top surface of float is equipped with sealing cover
5,2 top peripheral of float is arranged with support frame 3, and 3 center of support frame is equipped with the gasket with sealing cover 5, gas vent 1b cooperation
4,4 center of gasket offers venthole 4a, and the top and bottom of gasket 4 are processed into horn-like structure, the top of gasket 4
Portion is matched with gas vent 1b, and the bottom of gasket 4 and sealing cover 5 cooperate, and sealing cover 5 is movably arranged on float through pushing and pulling component
2 tops, push-and-pull component when float 2 rises to push sealing cover 5 to move upwards, one layback of sealing cover 5 when float 2 declines
Its decline is moved, push-and-pull component includes the pillar 12 for being fixed on 2 end face center of float, boss 7 is provided on pillar 12, float 2
Top surface is additionally provided with a pair of of guide rod 8, and the bracket 6 that can slide up and down is provided on two guide rods 8, and two stands 6 are fixed on close
The bottom of capping 5, the bottom of two stands 6 is machined with the flanging 6a to bend inwards, and two flanging 6a and 7 bottom surface of boss distance are not
Together, the bottom surface of boss 7 and flanging 6a cooperate, and drive the decline of sealing cover 5 to separate with gasket 4 to pull downward on flanging 6a, roll over
There are free gaps with 7 bottom surface of boss by side 6a, jack up sealing cover 5 when the top surface of boss 7 moves upwards, and boss 7 is the frustum of a pyramid,
Side on bracket 6 close to guide rod 8 is provided with a pair of of clamping plate 11, and clamping plate 11 can be slided up and down along guide rod 8, sealing cover 5
Bottom surface is provided with the retention bead 5a cooperated with boss 7, and 2 top surface of float is additionally provided with a pair of of hook plate 9, the setting of 3 periphery of support frame
The otic placode 10 cooperated with hook plate 9.
When the present invention refuels, the liquid level in fuel tank rises, and fuel oil enters from the inlet opening 1a of 1 side of valve body, and float 2 exists
Rise under buoyancy as liquid level rises, float 2, which rises, drives gasket 4 to rise, while 5 top surface of sealing cover and gasket
4 bottom fits together to form first of sealing, when the top and the periphery gas vent 1b of pad 4 to be sealed fit together, floats
Son 2 no longer rises, at this point, 4 top of gasket forms second sealing with the periphery gas vent 1b, completes the closing of gas vent 1b,
While completion of refueling, when the liquid level decline in fuel tank, float 2 declines with the decline of liquid level, inside and outside fuel tank
There are pressure differences, and sealing cover 5 can keep that state is sucked under the effect of the pressure at this time, at this point, float 2 is under the effect of gravity along close
The side of capping 5 pulls downward on sealing cover 5 so that the side of sealing effectiveness lid and gasket 4 is first unfolded into ventilative seam, and with it is close
Packing 4 is detached from, and pressure balance is realized in inside and outside ventilation, and pressure difference is eliminated, so that gasket 4 can normally be detached from gas vent 1b, is realized
Exhaust.
The present invention is not limited to the above embodiments, on the basis of technical solution disclosed by the invention, the skill of this field
For art personnel according to disclosed technology contents, one can be made to some of which technical characteristic by not needing creative labor
A little replacements and deformation, these replacements and deformation are within the scope of the invention.
Claims (6)
1. a kind of fuel tank control valve, including be arranged in the intracorporal float of valve, body top offers gas vent, and valve body-side is opened
Equipped with inlet opening, the bottom of valve body, which offers, unloads oilhole, which is characterized in that the float top surface is equipped with sealing cover, described floating
Sub- top peripheral is arranged with support frame, and support frame center is equipped with the gasket with the sealing cover, gas vent cooperation, gasket
Center offers venthole, is processed into horn-like structure at the top and bottom of the gasket, the top of the gasket with
The gas vent matches, and the bottom of gasket and the sealing cover cooperate, and the sealing cover is movably arranged on through pushing and pulling component
Buoy top, the push-and-pull component when float rises to push sealing cover to move upwards, from sealing cover when float declines
Avris pulls its decline.
2. a kind of fuel tank control valve according to claim 1, which is characterized in that the push-and-pull component is floating including being fixed on
The pillar of sub- end face center is provided with boss on pillar, and the top surface of the float is additionally provided with a pair of of guide rod, two guiding
The bracket that can slide up and down is provided on bar, two stands are fixed on the bottom of sealing cover, and the bottom of two brackets is machined with
The flanging to bend inwards, and two flangings and boss bottom surface distance are different, the bottom surface of the boss and flanging cooperation, to
Lower pulling flanging drives sealing cover decline to separate with gasket, and there are free gap, the tops of boss with boss bottom surface for the flanging
Face is to jack up sealing cover when boss moves upwards.
3. a kind of fuel tank control valve according to claim 2, which is characterized in that the boss is the frustum of a cone, the branch
Side on frame close to guide rod is provided with a pair of of clamping plate, and the clamping plate can be slided up and down along guide rod.
4. a kind of fuel tank control valve according to claim 2, which is characterized in that the boss is the frustum of a pyramid, the branch
Side on frame close to guide rod is provided with a pair of of clamping plate, and the clamping plate can be slided up and down along guide rod.
5. a kind of fuel tank control valve according to claim 3 or 4, which is characterized in that the bottom surface of the sealing cover is arranged
There is the retention bead with boss cooperation.
6. a kind of fuel tank control valve according to claim 1, which is characterized in that the float top surface is additionally provided with a pair
Hook plate, the otic placode of the setting of support frame as described above periphery and hook plate cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910354488.0A CN109944952A (en) | 2019-04-29 | 2019-04-29 | A kind of fuel tank control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910354488.0A CN109944952A (en) | 2019-04-29 | 2019-04-29 | A kind of fuel tank control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109944952A true CN109944952A (en) | 2019-06-28 |
Family
ID=67016629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910354488.0A Pending CN109944952A (en) | 2019-04-29 | 2019-04-29 | A kind of fuel tank control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109944952A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070284001A1 (en) * | 2006-06-13 | 2007-12-13 | Toyoda Gosei Co., Ltd. | Fuel cutoff valve |
| CN202381778U (en) * | 2012-02-02 | 2012-08-15 | 斯丹德汽车系统（苏州）有限公司 | Automobile gravity valve capable of retreating easily |
| CN103328803A (en) * | 2011-01-21 | 2013-09-25 | 伊顿公司 | Isolation valve with integrated float valve for high-pressure applications |
| CN205065004U (en) * | 2015-09-21 | 2016-03-02 | 亚普汽车部件股份有限公司 | Oil tank air bleeding valve that can open fast under high pressure |
| CN208153807U (en) * | 2017-12-30 | 2018-11-27 | 亚普汽车部件股份有限公司 | A kind of new-type oil tank liquid level control exhaust valve |
| CN109488797A (en) * | 2018-12-31 | 2019-03-19 | 亚普汽车部件股份有限公司 | A kind of new-type oil tank liquid level control exhaust valve |
| CN209909175U (en) * | 2019-04-29 | 2020-01-07 | 江苏奥力威传感高科股份有限公司 | Fuel tank control valve |
-
2019
- 2019-04-29 CN CN201910354488.0A patent/CN109944952A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070284001A1 (en) * | 2006-06-13 | 2007-12-13 | Toyoda Gosei Co., Ltd. | Fuel cutoff valve |
| CN103328803A (en) * | 2011-01-21 | 2013-09-25 | 伊顿公司 | Isolation valve with integrated float valve for high-pressure applications |
| CN202381778U (en) * | 2012-02-02 | 2012-08-15 | 斯丹德汽车系统（苏州）有限公司 | Automobile gravity valve capable of retreating easily |
| CN205065004U (en) * | 2015-09-21 | 2016-03-02 | 亚普汽车部件股份有限公司 | Oil tank air bleeding valve that can open fast under high pressure |
| CN208153807U (en) * | 2017-12-30 | 2018-11-27 | 亚普汽车部件股份有限公司 | A kind of new-type oil tank liquid level control exhaust valve |
| CN109488797A (en) * | 2018-12-31 | 2019-03-19 | 亚普汽车部件股份有限公司 | A kind of new-type oil tank liquid level control exhaust valve |
| CN209909175U (en) * | 2019-04-29 | 2020-01-07 | 江苏奥力威传感高科股份有限公司 | Fuel tank control valve |
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