CN105000527B - A kind of nozzle with petroleum vapor recovery structure - Google Patents
A kind of nozzle with petroleum vapor recovery structure Download PDFInfo
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- CN105000527B CN105000527B CN201510399739.9A CN201510399739A CN105000527B CN 105000527 B CN105000527 B CN 105000527B CN 201510399739 A CN201510399739 A CN 201510399739A CN 105000527 B CN105000527 B CN 105000527B
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Abstract
The present invention relates to a kind of nozzle, specifically related to a kind of nozzle with petroleum vapor recovery structure, including petroleum vapor recovery nozzle, mechanical gas-liquid ratio adjusting valve, the entrance of described petroleum vapor recovery nozzle is tightly connected with mechanical gas-liquid ratio adjusting valve, described gun barrel, pull bar part is connected with plenum section, described mechanical gas-liquid ratio adjusting valve entrance point is sealedly connected with a vacuum flow control valve, described barrel closure is set with a getter cover, a secondary valve is pressed with inside described gun barrel, described getter cover is connected with a transfer bar mechanism, described gun barrel medial surface is provided with a muffler, the gun body part of described gun barrel lateral surface is provided with a return gas channel one connected with muffler, this product has safety, environmental protection, the advantages of energy-conservation, it is gas station's secondary oil gas reclaiming system and the indispensable equipment of vehicle-mounted gas recovery system for oil.
Description
Technical field
The present invention relates to a kind of nozzle, and in particular to a kind of nozzle with petroleum vapor recovery structure.
Background technology
National environmental protection portion in August, 2014 starts the formulation of vehicle-mounted oil filling gas recovery system for oil (ORVR) relevant criterion, but
There is incompatibility problem in ORVR systems, with current gas station's secondary oil gas reclaiming system with the gasoline car with ORVR systems
Popularization, can because existing secondary oil gas reclaiming system and ORVR systems it is incompatible, cause petrol station excess emissions.Existing secondary oil
Gas recovery system changes the nozzle for the automobile for possessing ORVR functions with identification, when ORVR nozzles run into ORVR automobiles certainly
Dynamic that A/L is dropped into 0.33 or so, during motor valve normal work, tank pressure keeps negative pressure, and blast pipe does not produce discharge；
Three gas recovery system for oil are installed, common petroleum vapor recovery nozzle is solved and is asked with the incompatible excess emissions caused of ORVR automobiles
Topic.So needing to do a nozzle for the automobile for the ORVR functions of matching with vehicle-mounted gas recovery system for oil.
The content of the invention
A kind of oiling with petroleum vapor recovery structure is provided it is an object of the invention to overcome of the prior art not enough
Rifle, the nozzle returns to buried tank by petroleum vapor recovery passage and petroleum vapor recovery pipeline, can prevented under the auxiliary of vacuum
Oil gas, which is dispersed into air, causes environmental pollution, potential safety hazard and the wasting of resources.
The object of the present invention is achieved like this：
A kind of nozzle with petroleum vapor recovery structure, including petroleum vapor recovery nozzle, mechanical gas-liquid ratio adjusting valve,
The entrance of described petroleum vapor recovery nozzle is tightly connected with mechanical gas-liquid ratio adjusting valve, described petroleum vapor recovery nozzle
Including gun barrel, plenum section, pull bar part, trigger component, described gun barrel, pull bar part are connected with plenum section, described
Mechanical gas-liquid ratio adjusting valve entrance point be sealedly connected with a vacuum flow control valve, described barrel closure is set with one
A secondary valve is pressed with inside getter cover, described gun barrel, described getter cover is connected with the inside of a transfer bar mechanism, described gun barrel
Face is provided with a muffler, and the gun body part of described gun barrel lateral surface is provided with a return gas channel one connected with muffler,
Described transfer bar mechanism is arranged in return gas channel one, and described return gas channel one in gun barrel with connecting, and described gun barrel leads to again
A return gas channel two is crossed to connect with plenum section.
Valve body and bonnet are included based on vacuum flow control valve described above, described, left on described bonnet ventilative
Hole, elastic diaphragm is provided with bonnet position, and the elastic diaphragm outward flange is sealed together with valve body, bonnet, elasticity every
Diaphragm inner ring is fixed with spring, and the lower spring end is connected with valve interior wall, and elastic diaphragm is moved up and down with spring, elasticity every
Fit clearance formation gas distribution channel between diaphragm inner ring and valve interior wall, the valve body front end is as oil and gas import, after valve body
End is provided with gas circuit and oil circuit, described gas circuit one end connects oil and gas import, through bullet as oil gas vent between front-end and back-end
Property diaphragm inner ring and valve interior wall between after the gas distribution channel that is formed, other end connection gas outlet, before the gas distribution channel
By-pass prot is connected with the gas circuit that section is set, described oil circuit one end connects oil inlet, other end connection oil-out.
Based on described above, the hole five that the oil circuit is set for transverse direction, the one end of hole five connection oil inlet, the other end is connected out
Hydraulic fluid port, the gas circuit includes hole one, the hole two of vertically arranged intercommunicating pore one that connection oil and gas import is laterally set, arranged side by side with hole two
Vertically arranged hole three, and the Kong Si that the lower end of intercommunicating pore three is laterally set, the described other end connection gas outlet of hole four, in hole
It is the gas distribution channel formed between elastic diaphragm inner ring and valve interior wall between two and hole three.
Based on the observation window being additionally provided with bonnet described above, described for observing elastic diaphragm position.
Based on described above, the valve interior wall coordinates junction to be arranged to raised seals face with elastic diaphragm inner ring,
It is an elastic construction based on getter cover described above, described, is slided on gun barrel, getter cover one end passes through a larynx
Hoop is fixedly set in gun body, and the other end shrinks slip on gun barrel；
Described transfer bar mechanism includes push rod, push rod spring, and described push rod is inserted with return gas channel one, described push rod
Moved back and forth in return gas channel one, one end of described push rod is set with push rod spring, and the other end is fixed on one by nut
On baffle plate, described baffle plate vertical seal is installed in getter cover, and described baffle plate is set with gun barrel vertical seal again；
The side of described return gas channel one offers the through hole one with muffler side wall vertical connection, described muffler
Position with the vertical connection of through hole one is blind end, and the side of described return gas channel one is further opened with the through hole connected with gun barrel
Two, described push rod is slided between through hole one and through hole two；
Described return gas channel two is arranged on gun barrel medial surface, and described through hole two is located at the same of gun barrel with return gas channel two
One circumferential location；
Described secondary valve includes spring, valve body, valve element and diaphragm seal, and described valve body is fitted in gun barrel, described valve
Core is inserted with valve body activity, and valve element inserting rearward end is fixed by nut, described spring housing valve described on valve element
Through there is oil transportation channel on body, described diaphragm seal is arranged on the oil-out edge of oil transportation channel, and described diaphragm seal is sleeved on
On valve element.
Based on being relatively fixed between gun barrel and gun body described above, described by a gun barrel stop pin, described gun barrel
Concatenated between gun body by stop pin.
Covered on based on getter described above, described on gun barrel and shrink one end of slip for globoidal structure, the globoidal structure
Coordinate with fuel tank oil inlet outer fringe seal.
Oil-out position based on the oil transportation channel on secondary valve described above, described is pyramidal structure, corresponding sealing
Piece is also pyramidal structure, is fixed between described diaphragm seal and valve element by nut.
The position connected based on return gas channel two described above, described with plenum section is provided with a safety cut-off valve,
Described safety cut-off valve is to be disposed with a steel ball, described cavity structure and air chamber inside a cavity structure, the cavity structure
Partially communicating one end is taper surface structure.
The present invention has the advantage that：
This product can pass through petroleum vapor recovery passage and oil by the oil gas produced in refueling process under Vacuum Operated Secondary
Gas recovery line returns to buried tank, prevents oil gas is dispersed into air from causing environmental pollution, hazard to person, potential safety hazard and money
Source waste, have the advantages that it is safe and environment-friendly, energy-conservation, be gas station's secondary oil gas reclaiming system and vehicle-mounted gas recovery system for oil not
The equipment that can lack.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is the structural representation of vacuum flow control valve.
Fig. 3 is the structural representation of secondary valve.
Fig. 4 is the A-A cross section structure diagrams of secondary valve.
Fig. 5 is the enlarged drawing of part A.
Embodiment
With reference to specific embodiment, the invention will be further described.
As shown in Fig. 1,2,3,4,5, a kind of nozzle with petroleum vapor recovery structure, including petroleum vapor recovery nozzle, machine
Tool formula gas-liquid ratio adjusting valve, the entrance of described petroleum vapor recovery nozzle is tightly connected with mechanical gas-liquid ratio adjusting valve,
Described petroleum vapor recovery nozzle includes gun barrel 1, plenum section 2, pull bar part 3, trigger component 4, described gun barrel 1, pull bar
Part 3 is connected with plenum section 2, and described mechanical gas-liquid ratio adjusting valve entrance point is sealedly connected with vacuum flow tune
Valve 5 is saved, the described sealing shroud of gun barrel 1, which is equipped with inside a getter cover 10, described gun barrel 1, is pressed with a secondary valve 6, described getter
Cover 10 is connected with a transfer bar mechanism, and the described medial surface of gun barrel 1 is provided with a muffler 7, the gun body of the described lateral surface of gun barrel 1
Part is provided with a return gas channel 1 connected with muffler 7, and described transfer bar mechanism is arranged in return gas channel 1, described
Return gas channel 1 and gun barrel 1 in connect, described gun barrel 1 is connected further through a return gas channel 29 with plenum section 2.At present
Nozzle it is few install getter cover or the basic just structure without getter cover additional, installing additional for getter cover mainly considers oil gas
Recovery and recovery when sealing effectiveness.The effect of secondary valve 6 is mainly when needing to refuel a car, due to oil pressure
Effect can push the resistance of spring open, and gasoline enters gun barrel by secondary valve, when oiling is finished, can prevent inside mailbox
Remaining gasoline leaks.Transfer bar mechanism in described return gas channel 1, which is mainly, realizes that the motion of getter cover drives push rod machine
The motion of structure, realize oil gas recovery it is unobstructed and close.
Valve body 507 and bonnet 501, described bonnet 501 are included based on vacuum flow control valve 5 described above, described
On leave air-vent 515, the setting of air-vent 515 mainly considers that the gas pressure in valve body 507 will not be excessive, causes to true
The damage of empty flow control valve 5.Elastic diaphragm 503, the outward flange of elastic diaphragm 503 are provided with the position of bonnet 501
Sealed together with valve body, bonnet, the inner ring of elastic diaphragm 503 is fixed with spring 504, the lower end of spring 504 and valve body 507
Wall is connected, and elastic diaphragm 503 is moved up and down with spring 504, between the cooperation between the inner ring of elastic diaphragm 503 and valve interior wall
Gap formation gas distribution channel, the valve body front end is as oil and gas import, and valve rear end is as oil gas vent, between front-end and back-end
Gas circuit and oil circuit are provided with, described gas circuit one end connects oil and gas import, through being formed between elastic diaphragm inner ring and valve interior wall
Gas distribution channel after, the other end connection gas outlet, the gas distribution channel leading portion set gas circuit on be connected with by-pass prot 510,
The oil circuit is the hole 5 513 laterally set, the one end of hole 5 513 connection oil inlet, other end connection oil-out.The gas circuit bag
Hole 1, the hole 2 509 of vertically arranged intercommunicating pore one that connection oil and gas import is laterally set are included, is vertically set side by side with hole 2 509
The hole 3 511 put, and the hole 4 512 that the lower end of intercommunicating pore 3 511 is laterally set, the described other end connection outlet of hole 4 512
Mouthful, the gas distribution channel as formed between hole 2 509 and hole 3 511 between elastic diaphragm inner ring and valve interior wall.Vacuum
Flow control valve 5 is overall to be divided into two main thoroughfares of gas circuit and oil circuit, and described asphalt channel directly connects oil inlet oil-out,
Gas channels realize many major generals elasticity according to oil and gas content in effect of the middle part by elastic diaphragm 503 and spring 504
Diaphragm 503, which is opened, arrives any degree, and the folding degree of elastic diaphragm 503 is mainly realized by the pressure of oil gas.
Based on the observation window being additionally provided with bonnet 501 described above, described for observing elastic diaphragm position
514, the setting of observation window 514 mainly considers the degree that convenient observation flexible sheet is opened, and is arranged on the central part of bonnet 501
Position, mainly considers just can accurately see very much the degree of the folding of elastic diaphragm 503, by observing elastic diaphragm
503 are judged apart from the distance of observation window 514, if the observation of elastic diaphragm 503 fill 514 it is closer to the distance if,
So illustrate the degree of the folding of elastic diaphragm 503 than larger, the flow-rate ratio of oil gas is larger, if distant, then
Illustrate that the degree of the folding of elastic diaphragm 503 is smaller, oil and gas content is smaller.
Based on described above, the inwall of valve body 507 coordinates junction to be arranged to raised seals with elastic diaphragm inner ring
Face 516, the setting in raised seals face 516 is mainly what is got according to the specific time, so convenient to observe it by peep hole
With the distance of observation window 514, if the not raised seals face 516, then due to the limit of the size of the bore of observation window 516
System, therefore can not possibly accurately observe very much elastic diaphragm 503 and the distance of observation window 514.
It is an elastic construction based on getter cover 10 described above, described, is slided on gun barrel 1, the one end of getter cover 10 leads to
Cross a larynx hoop 11 to be fixedly set in gun body, the other end shrinks slip on gun barrel 1, the setting of the structure is mainly consideration getter
Cover 10 can form a sealing structure between fuel tank oil inlet, it is necessary to artificial by getter cover when oil dropping apparatus refuels
10 open, so when gun barrel 1 is with being deep into fuel tank so that getter cover 10 is just formed with the oil inlet outer rim of fuel tank
Sealed structure, when fill it up with again, by manually packing up getter cover 10, can be slided along gun barrel 1.
Described transfer bar mechanism includes push rod 12, push rod spring 13, and described push rod 12 is inserted with return gas channel 1, institute
The push rod 12 stated is moved back and forth in return gas channel 1, and one end of described push rod 12 is set with push rod spring 13, and the other end leads to
Cross nut to be fixed on a baffle plate 14, the described vertical seal of baffle plate 14 is installed in getter cover 10, described baffle plate 14 again with
The vertical seal of gun barrel 1 is set with；The side of described return gas channel 1 offers the through hole one with the side wall vertical connection of muffler 7
801, the position of described muffler 7 and the vertical connection of through hole 1 is blind end, and the side of described return gas channel 1 is also
The through hole 2 802 connected with gun barrel 1 is offered, described push rod 12 is slided between through hole 1 and through hole 2 802；It is described
Return gas channel 29 be arranged on the medial surface of gun barrel 1, described through hole 2 802 is located at the same circle of gun barrel 1 with return gas channel 29
All positions, the structure of the above is mainly the transfer passage of oil gas, when needing oil dropping apparatus to refuel, and at this time needs first to open
Getter cover 10, sealing shroud is mounted in the oil inlet outward flange of fuel tank, at this time starts to refuel, while oil gas will be produced, produces oil
Gas enters muffler 7, is entered then into the oil gas of muffler 7 by through hole 1 in return gas channel 1, at this moment
Wait because getter cover 10 is the state of opening, therefore, by baffle plate 14 push rod 12 can be driven to travel forward, so as to compress push rod bullet
Spring 13 so that through hole 1 is unimpeded state, oil gas at this time is entered in return gas channel 1 along through hole 1,
Then entered again by through hole 2 802 in return gas channel 29, until the oil in fuel tank is when fill it up with, due to getter cover with
Vacuum structure is formed between fuel tank oil inlet, return gas channel and plenum section will make it that jumping rifle diaphragm moves up because of negative pressure,
So pull bar is partially disengaged, under the impetus of oil-air pressure, be moved rearwards by, so as to stop refueling with movable valve, protect
The sealing property of fuel tank oil gun, or excessive, the reduction oil gas leakage produced because filling it up with oil are demonstrate,proved, oil leak is prevented.At this time
Oil gas can just carry out the regulation of oil gas flow by vacuum flow control valve 5.When fuel tank fills it up with oil, by manually will
Getter cover 10 is drawn in, and at this time push rod 12 will be moved rearwards by the presence of push rod spring 13, so as to by through hole 1 and lead to
Hole 2 802 is blocked, and at this time oil gas would not leak.
Described secondary valve 6 includes spring 61, valve body 62, valve element 63 and diaphragm seal 64, and described valve body 62 is fitted in gun barrel 1
Interior, described valve element 63 is inserted with the activity of valve body 62, and the inserting of valve element 63 rearward end is fixed by nut, 61 sets of described spring
Through there is oil transportation channel 65 on described valve body 62 on valve element 63, described diaphragm seal 64 is arranged on going out for oil transportation channel 65
Hydraulic fluid port edge, described diaphragm seal 64 is sleeved on valve element 63.In the description of the preceding paragraph, fuel tank is filled it up with after oil, and secondary valve 6 will be
Diaphragm seal 64 is closed in the presence of spring 61, it is to avoid oil leak situation must occur.When being refueled into fuel tank, mainly
Diaphragm seal 64 is pushed open by oil transportation channel 65 by oil pressure, while spring 61 is stretched, such oil will pass through oil transportation channel
Enter in gun barrel, so as to realize oiling.Oil-out position with the oil transportation channel 65 on further, described secondary valve 6 is
Pyramidal structure, corresponding diaphragm seal 64 is also pyramidal structure, is fixed between described diaphragm seal 64 and valve element 63 by nut.Cone
The oil-out position of shape structure, mainly facilitates being fully sealed for diaphragm seal 64, the diaphragm seal 64 of pyramidal structure is relative to cylindricality
Or its sealed effect of the diaphragm seal of other structures is much better.In order to ensure the synchronous fortune between diaphragm seal and valve element 63
Dynamic, installation diaphragm seal exists between valve element and nut, thus the end of valve element 63 can be provided with step, diaphragm seal just may be used
To be installed on the stepped portions, as shown in figure 4, the thus movement back and forth of aspect diaphragm seal 64.
Based on being relatively fixed between gun barrel 1 described above, described and gun body by a gun barrel stop pin 15, described rifle
Concatenated between pipe 1 and gun body by stop pin 15.The effect of gun barrel stop pin is extremely obvious, because in the practice of the invention,
For the convenience of processing, also for being relatively fixed between gun barrel and gun body, this is solved using stop pin 15 well and asked
Topic.The structure of stop pin 15 carries a cap-like structure, leads in specific practice, it is necessary to make a call to one simultaneously in gun body and gun barrel 1
Hole, and a larger hole is opened up in gun body, facilitate the installation of the cap of stop pin 15 to fix, as shown in figure 1, thus
Easily stop pin 15 is fixed, be will not fall off, while O-ring can also be installed additional, increases sealed effect, the outer of gasoline is prevented
Let out.
One end that slip is shunk on gun barrel 1 based on getter cover 10 described above, described is globoidal structure, the cambered surface knot
Structure coordinates with fuel tank oil inlet outer fringe seal, and the setting of globoidal structure mainly employs the structure of intrados, as shown in figure 1,
Mainly ensure the cambered surface just can with the formation of fuel tank oil inlet edge one be fully sealed, will not oil leak, or gas leakage.
One safety cut-off valve is provided with the position that plenum section 2 is connected based on return gas channel 29 described above, described
16, described safety cut-off valve 16 is to be disposed with a steel ball 17, described cavity structure inside a cavity structure, the cavity structure
The one end connected with plenum section 2 is taper surface structure.The setting of safety cut-off valve 16, which is mainly, prevents oil gun upward in muzzle
When can also occur the imagination of oil leak, at this time catching up with 17 will be by the outlet obstruction of conical cavity due to the effect of gravity, this
When corresponding plenum section would not jump rifle automatically, will not oil leak again.
Claims (10)
1. a kind of nozzle with petroleum vapor recovery structure, including petroleum vapor recovery nozzle, mechanical gas-liquid ratio adjusting valve, institute
The entrance for the petroleum vapor recovery nozzle stated is tightly connected with mechanical gas-liquid ratio adjusting valve, described petroleum vapor recovery nozzle bag
Include gun barrel（1）, plenum section（2）, pull bar part（3）, trigger component（4）, described gun barrel（1）, pull bar part（3）And gas
Room part（2）Connection, it is characterised in that：Described mechanical gas-liquid ratio adjusting valve entrance point is sealedly connected with a vacuum flow
Regulating valve（5）, described gun barrel（1）Sealing shroud is equipped with a getter cover（10）, described gun barrel（1）Inside is pressed with a secondary valve
（6）, described getter cover（10）It is connected with a transfer bar mechanism, described gun barrel（1）Medial surface is provided with a muffler（7）, institute
The gun barrel stated（1）The gun body part of lateral surface is provided with one and muffler（7）The return gas channel one of connection（8）, described push rod
Mechanism is arranged on return gas channel one（8）Interior, described return gas channel one（8）With gun barrel（1）Interior connection, described gun barrel（1）Again
Pass through a return gas channel two（9）With plenum section（2）Connection.
2. a kind of nozzle with petroleum vapor recovery structure according to claim 1, it is characterised in that：Described vacuum-flow
Adjustable valve（5）Including valve body（507）And bonnet（501）, described bonnet（501）On leave air-vent（515）, in bonnet
（501）Position is provided with elastic diaphragm（503）, the elastic diaphragm（503）Outward flange is sealed together with valve body, bonnet,
Elastic diaphragm（503）Inner ring is fixed with spring（504）, the spring（504）Lower end and valve body（507）Inwall is connected, elasticity
Diaphragm（503）With spring（504）Move up and down, elastic diaphragm（503）Fit clearance shape between inner ring and valve interior wall
Into gas distribution channel, the valve body front end is as oil and gas import, and valve rear end is set as oil gas vent between front-end and back-end
There are gas circuit and oil circuit, described gas circuit one end connects oil and gas import, defeated through what is formed between elastic diaphragm inner ring and valve interior wall
After gas passage, other end connection gas outlet is connected with by-pass prot in the gas circuit that the gas distribution channel leading portion is set（510）, institute
State oil circuit one end connection oil inlet, other end connection oil-out.
3. a kind of nozzle with petroleum vapor recovery structure according to claim 2, it is characterised in that：The oil circuit is horizontal stroke
To the hole five of setting（513）, hole five（513）One end connects oil inlet, and other end connection oil-out, the gas circuit includes connection oil
The hole one that gas import is laterally set（508）, vertically arranged intercommunicating pore one hole two（509）, with hole two（509）It is vertically arranged side by side
Hole three（511）, and intercommunicating pore three（511）The Kong Si that lower end is laterally set（512）, described Kong Si（512）The other end connects
Pass-out gas port, in hole two（509）With hole three（511）Between be the gas transmission that is formed between elastic diaphragm inner ring and valve interior wall
Passage.
4. a kind of nozzle with petroleum vapor recovery structure according to claim 2, it is characterised in that：Described bonnet
（501）On be additionally provided with observation window for observing elastic diaphragm position（514）.
5. a kind of nozzle with petroleum vapor recovery structure according to claim 2, it is characterised in that：The valve body
（507）Inwall coordinates junction to be arranged to raised seals face with elastic diaphragm inner ring（516）.
6. a kind of nozzle with petroleum vapor recovery structure according to claim 1, it is characterised in that：Described getter cover
（10）For an elastic construction, in gun barrel（1）It is upper to slide, getter cover（10）One end passes through a larynx hoop（11）It is fixedly set in gun body
On, the other end is in gun barrel（1）Upper shrink is slided；
Described transfer bar mechanism includes push rod（12）, push rod spring（13）, described push rod（12）With return gas channel one（8）Insert
Dress, described push rod（12）In return gas channel one（8）It is interior to move back and forth, described push rod（12）One end be set with push rod spring
（13）, the other end is fixed on a baffle plate by nut（14）On, described baffle plate（14）Vertical seal is installed on getter cover（10）
Interior, described baffle plate（14）And and gun barrel（1）Vertical seal is set with；
Described return gas channel one（8）Side offer and muffler（7）The through hole one of side wall vertical connection（801）, it is described
Muffler（7）With through hole one（801）The position of vertical connection is blind end, described return gas channel one（8）Side also open
It is provided with and gun barrel（1）The through hole two of connection（802）, described push rod（12）In through hole one（801）With through hole two（802）Between it is sliding
It is dynamic；
Described return gas channel two（9）It is arranged on gun barrel（1）Medial surface, described through hole two（802）With return gas channel two（9）Position
In gun barrel（1）Same circumferential location；
Described secondary valve（6）Including spring（61）, valve body（62）, valve element（63）And diaphragm seal（64）, described valve body（62）Pressure
Mounted in gun barrel（1）Interior, described valve element（63）With valve body（62）Activity inserting, and valve element（63）Insert rearward end solid by nut
Fixed, described spring（61）It is sleeved on valve element（63）On, described valve body（62）Above running through has oil transportation channel（65）, described is close
Mounting（64）It is arranged on oil transportation channel（65）Oil-out edge, described diaphragm seal（64）It is sleeved on valve element（63）On.
7. a kind of nozzle with petroleum vapor recovery structure according to claim 6, it is characterised in that：Described gun barrel
（1）Pass through a gun barrel stop pin between gun body（15）It is relatively fixed, described gun barrel（1）Pass through stop pin between gun body
（15）Concatenation.
8. a kind of nozzle with petroleum vapor recovery structure according to claim 6, it is characterised in that：Described getter cover
（10）In gun barrel（1）Upper one end slided of shrinking is globoidal structure, and the globoidal structure coordinates with fuel tank oil inlet outer fringe seal.
9. a kind of nozzle with petroleum vapor recovery structure according to claim 6, it is characterised in that：Described secondary valve
（6）On oil transportation channel（65）Oil-out position be pyramidal structure, corresponding diaphragm seal（64）Also it is pyramidal structure, it is described
Diaphragm seal（64）With valve element（63）Between fixed by nut.
10. a kind of nozzle with petroleum vapor recovery structure according to claim 1, it is characterised in that：Described return-air
Passage two（9）With plenum section（2）The position of connection is provided with a safety cut-off valve（16）, described safety cut-off valve（16）For
A steel ball is disposed with inside one cavity structure, the cavity structure（17）, described cavity structure and plenum section（2）The one of connection
Hold as taper surface structure.
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| CN201510399739.9A CN105000527B (en) | 2015-07-09 | 2015-07-09 | A kind of nozzle with petroleum vapor recovery structure |
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| CN201510399739.9A CN105000527B (en) | 2015-07-09 | 2015-07-09 | A kind of nozzle with petroleum vapor recovery structure |
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| CN105000527B true CN105000527B (en) | 2017-08-29 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106145019B (en) * | 2016-08-31 | 2019-02-26 | 郑州永邦环保科技有限公司 | A kind of Novel oil gas reclaiming type refueling nozzle |
| CN108706541A (en) * | 2018-05-03 | 2018-10-26 | 江苏润宇环境工程有限公司 | Petroleum vapor recovery dust cover |
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| CN202609918U (en) * | 2011-10-19 | 2012-12-19 | 中国石油化工股份有限公司 | Oil gas recovery oil gun |
| CN103626111A (en) * | 2013-11-07 | 2014-03-12 | 温州正凌机械制造有限公司 | Self-sealing fuel truck nozzle |
| CN203754406U (en) * | 2013-12-28 | 2014-08-06 | 杨江山 | Oil gas recovering self-closing fuel gun |
| CN204778803U (en) * | 2015-07-09 | 2015-11-18 | 郑州永邦环保科技有限公司 | Nozzle with vapor recovery system structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105000527A (en) | 2015-10-28 |
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