CN109748230A - Refueling nozzle and fuel-servicing equipment - Google Patents
Refueling nozzle and fuel-servicing equipment Download PDFInfo
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- CN109748230A CN109748230A CN201910028103.1A CN201910028103A CN109748230A CN 109748230 A CN109748230 A CN 109748230A CN 201910028103 A CN201910028103 A CN 201910028103A CN 109748230 A CN109748230 A CN 109748230A
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- refueling nozzle
- chamber
- moving member
- vacuum
- gas outlet
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Abstract
The present invention relates to fuel oil filling technique fields, in particular to refueling nozzle and fuel-servicing equipment.Wherein, direction device is provided in refueling nozzle, direction device includes chamber, installing pipe and moving member；One end of chamber is provided with gas outlet, and gas outlet is connected to vacuum area, the other end closing of chamber；Installing pipe includes air inlet, and air inlet is connected to the other end of the first blowdown pipe, side wall and chamber of the installing pipe in the chamber close to gas outlet；Moving member is contained in chamber, and moving member can be subjected to displacement in chamber due to gravity, and the salable gas outlet of moving member.The installing pipe of direction device is arranged by the gas outlet of abluminal compartment in refueling nozzle provided by the invention, air-flow can be shortened in the indoor flow path of chamber, to guarantee the sensitivity of direction device, and unnecessary jump rifle can be prevented, improve the reliability of refueling nozzle.
Description
Technical field
The present invention relates to fuel oil filling technique field, in particular to a kind of adding applied to refueling nozzle and comprising the refueling nozzle
Oily equipment.
Background technique
With the development of science and technology, living standard also increasingly improves, the vehicles such as automobile are more more and more universal.In existing city
In, the motor vehicle of fuel oil occupies larger share, and it is then particularly important for supplementing fuel oil in time for motor vehicle.
In daily life, from the point of view of safety and convenience, it will usually gas station is planned in designated place,
Fuel reservoir is set in the underground of gas station, and multiple fuel-servicing equipments connecting with fuel reservoir are set, each fuel-servicing equipment is logical
The refueling nozzle crossed on fuel charger refuels to the vehicles, and the barrel assembly of refueling nozzle is partially received into fuel tank in refueling process
It is interior.It can choose the quantitative fuel oil of addition usually using person, also can choose the oiling into fuel tank until filling.
In the prior art, setting can close the direction device of refueling nozzle oil circuit and gas circuit in refueling nozzle.Direction dress
It sets triggering closing organ when being configured to be at an angle of (orientation in the cards) on horizontal plane or horizontal plane when nozzle and stops
Fuel flow, to improve practical safety.
However, in the prior art, when reality is refueled, due to direction device tetchiness, often because of refueling nozzle
Tonifying Qi path in interference in air flow and cause direction device trigger closing organ so that refueling nozzle stops refueling because jumping rifle.
When refueling nozzle frequently jumps rifle, the manipulation strength of operator will increase, and greatly reduce the convenience used.
Summary of the invention
Present invention has been made in view of the above problems, its purpose is to provide a kind of refueling nozzle and fuel-servicing equipment, energy
Enough in the case where ensuring that direction device has enough sensitivity, interference suffered by direction device is reduced, to reduce non-
Necessity jumps the number of rifle.
According to the present invention, refueling nozzle includes: vacuum generating device, and vacuum generating device is when fuel oil flows through wherein in vacuum
Region generates vacuum；Tonifying Qi path, tonifying Qi path include the first blowdown pipe, the gun barrel of one end connection refueling nozzle of the first blowdown pipe
Tonifying Qi hole；Refueling nozzle further include: direction device, direction device include chamber, installing pipe and moving member；One end of chamber is set
It is equipped with gas outlet, gas outlet is connected to vacuum area, the other end closing of chamber；Installing pipe includes air inlet, air inlet and
The other end of one blowdown pipe is connected to, side wall and chamber of the installing pipe in the chamber close to gas outlet；Moving member is contained in chamber
Interior, moving member can be subjected to displacement in chamber due to gravity, and the salable gas outlet of moving member.
Compared to existing technologies, in refueling nozzle provided by the invention, direction device is therein for generating vacuum
The close gas outlet setting for being connected to chamber of installing pipe, so as to shorten the air-flow entered from the first blowdown pipe in chamber
Flow path, to can either guarantee the sensitivity of direction device, and effect of the air-flow to moving member can be greatly decreased, from
And unnecessary jump rifle is prevented, improve the reliability of direction device.
Preferably, refueling nozzle further includes vacuum cap assembly, the presumptive area of vacuum cap assembly is connected with vacuum area.
Vacuum cap assembly is connected to vacuum generating device, so that the vacuum that vacuum generating device generates can act on vacuum
On cap assembly, jumps rifle to control refueling nozzle and terminate refueling operation.
Further, preferably, the gas for filling into refueling nozzle enters tonifying Qi path from tonifying Qi hole, followed by direction dress
It sets and vacuum generating device, reaches vacuum cap assembly.
In addition, preferably, the gas for filling into refueling nozzle enters tonifying Qi path from tonifying Qi hole, followed by direction device and
Vacuum cap assembly reaches vacuum generating device.
Preferably, in the case where fuel oil flows through fuel path, when moving member closes gas outlet or works as tonifying Qi hole quilt
When closing, presumptive area generates vacuum in vacuum cap assembly, so that refueling nozzle jumps rifle, closes fuel path.
Preferably, chamber is formed as column, gas outlet is set on an end face of chamber, and installing pipe is connected to chamber
Side wall be arranged close in the position of the end face of gas outlet.
By above-mentioned set-up mode, chamber can be left quickly through gas outlet after gas inflow direction device, to subtract
Few interference of the air-flow to moving member, to reduce unnecessary jump rifle number.
In addition, preferably, tonifying Qi path further includes the second blowdown pipe, the outlet of one end connecting chamber of the second blowdown pipe
Mouthful, the other end connects vacuum cap assembly or vacuum generating device.
In addition, preferably, being provided with the guidance for guiding moving member to move between the side wall and gas outlet of chamber
Portion.
Second blowdown pipe is used for vacuum cap assembly or vacuum generating device conveying gas or vacuum, and guide portion is for guiding
The movement of moving member, so that the reaction of moving member is sensitiveer.
Further, preferably, guide portion is formed as conical surface, gas outlet is formed in the top of conical surface.
Conical surface, which is arranged, can preferably engage with the outer profile of moving member and closely block gas outlet, so that it is guaranteed that
Refueling nozzle can be made to complete to jump rifle according to the vacuum that Venturi effect is formed in tonifying Qi path.
In addition, gas outlet is formed in the top of domal surface preferably, guide portion is formed as domal surface.
Domal surface, which is arranged, can reduce the small movements of moving member, prevent between moving member and guide portion that there are skies
Gap, it is ensured that refueling nozzle can be made to complete to jump rifle according to the vacuum that Venturi effect is formed.
Further, preferably, chamber is formed as long and narrow column, the length of chamber is 10-40mm, the diameter of chamber
For 5-15mm.
The diameter of length and chamber to chamber limits, it can be ensured that direction device is jumped in reasonable time
Rifle, to close oil valve.Meanwhile prevent due to the length of chamber it is too short caused by direction device is excessively sensitive, refueling nozzle frequency
Numerous jump rifle.
In addition, preferably, moving member be spherical shape, can be rolled in chamber.
By setting spherical for moving member, reduces the frictional force between moving member and chamber inner sidewall, be conducive to improve
The sensitivity of direction device, when the posture of refueling nozzle changes moving member can fast reaction, that improves direction device can
By property.
Further, preferably, chamber is connected to installing pipe by communication port, and the size of moving member is greater than communication port
Bore.
The moving member that can be prevented is limited to the size of moving member to enter in installing pipe by communication port, so as to
Ensure that refueling nozzle is adjusted to after the posture normally refueled, the gas circuit in tonifying Qi path is unimpeded.
In addition, gas outlet is connect with the second blowdown pipe preferably, installing pipe is connect with the first blowdown pipe.
Direction device is installed in tonifying Qi path by the second blowdown pipe of connection and the first blowdown pipe, thus by venturi
The vacuum action that effect generates is in vacuum cap assembly.
The present invention also provides a kind of fuel-servicing equipments, and including above-mentioned refueling nozzle, wherein refueling nozzle passes through fuel-servicing equipment pipe
The connection of the other assemblies of road and fuel-servicing equipment.
Compared with prior art, the refueling nozzle of the fuel-servicing equipment in the present invention can refuel according to the direction controlling of refueling nozzle
Movement, so that the safety used greatly improved.
The present invention also provides a kind of jump rifle control methods of refueling nozzle, preferably, including:
Fueling procedure: opening oil valve, and fuel oil flows through fuel path injection fuel tank；
Tonifying Qi step: after being then injected into, air flows through tonifying Qi path and forms negative pressure；
Rotate step: rotation refueling nozzle changes the angle of fuel path and ground；
Regulating step: direction device is started to work under gravity, closes tonifying Qi path, is realized and is jumped rifle.
Compared to existing technologies, the jump rifle control method provided in present embodiment, can detect oiling in time
The attitudes vibration of rifle, and the working condition of refueling nozzle is adjusted in time by direction device, it greatly improved and refueling
Safety in the process.
Further, preferably, further including reset process: rotation refueling nozzle keeps direction device multiple under the effect of gravity
Tonifying Qi path is opened in position.
By reset process, refueling nozzle can be made to adjust and released, and can continue to the operation refueled.
Detailed description of the invention
Fig. 1 is the barrel assembly schematic diagram of one embodiment of the present of invention；
Fig. 2 is schematic cross-sectional view of the barrel assembly in Fig. 1 along the face A-A；
Fig. 3 is the barrel assembly partial schematic diagram of one embodiment of the present of invention；
Fig. 4 is the partial sectional view of the barrel assembly of one embodiment of the present of invention；
Fig. 5 is the schematic diagram of the direction device in the barrel assembly of one embodiment of the present of invention；
Fig. 6 is the schematic cross-sectional view of the direction device along the face B-B of one embodiment in Fig. 5；
Fig. 7 is the partial sectional view when barrel assembly of one embodiment of the present of invention normally refuels；
Fig. 8 is that the barrel assembly of one embodiment of the present of invention jumps the partial sectional view after rifle
Fig. 9 is the schematic diagram of the refueling nozzle of one embodiment of the present of invention.
Description of symbols
1- fuel path；1a- oil valve；2- tonifying Qi path；The second blowdown pipe of 2a-；The first blowdown pipe of 2b-；2c- tonifying Qi hole；
3- direction device；3a- chamber；The gas outlet 3a1-；3a2- guide portion；3b- moving member；3c- installing pipe；3c1- air inlet；3c2-
Communication port；4- trigger；5- vacuum cap assembly；6- refueling nozzle；7- vacuum generating device.
Specific embodiment
With reference to the accompanying drawings of the specification, current row is further described in detail.Schematically simplify to show in attached drawing and add
Oil gun and fuel-servicing equipment structure etc..
Embodiment one
First embodiment of the invention provides a kind of refueling nozzle 6 and adds referring to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 9
Oil gun 6 includes: vacuum generating device 7, and vacuum generating device 7 is true in vacuum area generation (not shown) when fuel oil flows through wherein
It is empty；Tonifying Qi path 2, tonifying Qi path 2 include the gun barrel of one end connection refueling nozzle 6 of the first blowdown pipe 2b, the first blowdown pipe 2b
Tonifying Qi hole 2c.Wherein, refueling nozzle 6 further include: direction device 3, direction device 3 include chamber 3a, installing pipe 3c and moving member
3b.One end of chamber 3a is provided with gas outlet 3a1, and gas outlet 3a1 is connected to vacuum area, the other end closing of chamber 3a.Peace
Tubulature 3c includes air inlet 3c1, and air inlet 3c1 is connected to the other end of the first blowdown pipe 2b, and installing pipe 3c is close to gas outlet
The side wall of the chamber 3a of 3a1 is connected to chamber 3a.Moving member 3b is contained in chamber 3a, and moving member 3b due to gravity can be in chamber
It is subjected to displacement in the 3a of room, and the salable gas outlet 3a1 of moving member 3b.
In addition, refueling nozzle 6 further includes vacuum cap assembly 5, vacuum cap assembly 5 is connected with vacuum area, as moving member 3b
It closes gas outlet 3a1 or when tonifying Qi hole 2c is closed, presumptive area generates vacuum in vacuum cap assembly 5, so as to refuel
Rifle 6 jumps rifle, closes fuel path 1.
In the present embodiment, the gas for filling into refueling nozzle 6 enters tonifying Qi path 2 from tonifying Qi hole 2c, followed by direction
Device and vacuum generating device 7 reach vacuum cap assembly.
Alternatively, the gas for filling into refueling nozzle enters tonifying Qi path 2 from tonifying Qi hole 2c, followed by direction device 3 and vacuum
Cap assembly 5 reaches vacuum generating device 7.
In the present embodiment, it is illustrated so that the second blowdown pipe 2a is directly connect with vacuum generating device 7 as an example.
In order to reduce the interference in air flow that mobile moving member 3b is subject to, in some embodiments, the second blowdown pipe 2a and
One blowdown pipe 2b would be normally located on same straight line, and be connected by chamber 3a.In order to reduce the interference of air-flow, it will usually
The method that baffle is set in the chamber 3a where moving member 3b is taken, the susceptibility of direction device 3 is maintained at reasonable model
In enclosing, to reduce the inessential number for jumping rifle.
Compared to existing technologies, it is provided in refueling nozzle 6 in the present invention, energy is arranged close to gas outlet 3a1 in installing pipe 3c
Enough shorten flow path of the air-flow in chamber 3a, to reduce the interference in air flow that moving member 3b is subject to, to reduce refueling nozzle 6
Jump rifle number.Also, mechanism of the invention is simple, therefore technology difficulty and production cost can be greatly reduced.
Specifically, in the present embodiment, referring to fig. 4, shown in Fig. 5 and Fig. 6, chamber 3a is formed as column, gas outlet 3a1
It is set on an end face of chamber 3a, also, chamber 3a is connected to installing pipe 3c by communication port 3c2, the size of moving member 3b
Greater than the bore of communication port 3c2.Wherein, the side wall that communication port 3c2 is set to chamber 3a is arranged close in the end face of gas outlet 3a1
Position.When moving member 3b is in the position far from gas outlet 3a1 and communication port 3c2, atmosphere can be normally in tonifying Qi path 2
Interior circulation.When moving member 3b moves to the position of blocking gas outlet 3a1, tonifying Qi path 2 is blocked, thus will lead to jump rifle,
Then the location of moving member 3b is referred to as to jump rifle position to set.As long as the shape of 3 middle chamber 3a of certain direction device not only limits and column
The effect for jumping rifle control can be played and facilitate installation.
Also, in the present embodiment, installing pipe 3c is connect with the first blowdown pipe 2b, gas outlet 3a1 and the second blowdown pipe
2a connection.
Compared to existing technologies, in normal refuel, since air-flow can quickly leave chamber 3a, can subtract
Interference of few atmosphere entered from the first blowdown pipe 2b to the moving member 3b in chamber 3a, to reduce unnecessary jump rifle
Number improves the convenience used.
In simple terms, referring to shown in Fig. 7 and Fig. 9, refueling nozzle 6 is (not shown) even fuel-servicing equipment (not shown) by conduit.
On-off valve is provided in fuel-servicing equipment and refueling nozzle 6, and and if only if on-off valve and the oil valve being arranged in refueling nozzle 6
When 1a is in the open state simultaneously, fuel oil can enter fuel path 1.The trigger 4 being arranged in gun body is pulled at this time,
It flows fuel oil further, is flowed into fuel tank along gun barrel.While fuel oil injection, the air in fuel tank is from barrel assembly
Tonifying Qi hole 2c flow into tonifying Qi path 2, to form negative pressure in tonifying Qi path 2.At this point, direction device 3 is in idle
State, moving member 3b are located at the one end in the separate tonifying Qi path 2 of chamber 3a, and air-flow can be mended normally from the first of tonifying Qi path 2
Tracheae 2b flows into the second blowdown pipe 2a, so that it is guaranteed that refueling nozzle 6 is constantly in the state of fuel oil filling.
If the angle of refueling nozzle 6 changes in refueling process.Moving member 3b is moved along the inner sidewall of chamber 3a
It is dynamic.Moving member 3b is in the end of the separate gas outlet 3a1 of chamber 3a under normal fueling state, when the angle of refueling nozzle 6
After rotating, moving member 3b is stopped at close to the end of gas outlet 3a1.Since the diameter of its moving member 3b is greater than gas outlet
The aperture of 3a1, therefore outlet portion 3a1 is sealed by moving member 3b, so that cannot be introduced into the from the atmosphere that the first blowdown pipe 2b is flowed into
Two blowdown pipe 2a, according to Venturi effect, to generate vacuum at vacuum generating device 7.The vacuum makes in vacuum cap assembly 5
Vacuum degree change, the diaphragm in vacuum cap assembly 5 is since the effect of pressure can not be bonded with other component again, thus band
Transmission component therein (such as needle roller) is moved to be separated with main shaft to realize jump rifle.Wherein, needle roller slot is usually provided on main shaft,
Needle roller handle can enter in needle roller slot with needle roller, it is ensured that and if only if when needle roller is fallen into needle roller slot, can beat
Open oil valve 1a.Therefore, the oil valve 1a of refueling nozzle 6 is closed after jump rifle, so that fuel oil can not be flowed out along fill path, is greatly improved
The safety that uses.
In actual use, the angle change of refueling nozzle 6 generally includes following situations.For example initial barrel assembly is
When being fully inserted into fuel tank, when starting fuel up, due to the pressure of fuel pump, it may be such that refueling nozzle 6 is de- from fuel tank
It falls, during falling off, for oil gun since own form asymmetry can deflect, the center of gravity of refueling nozzle 6 is partial to hand-held one
End, so that the muzzle of barrel assembly gradually upward deflects.Or user's use is not known about, and refueling nozzle 6 is made in refueling process
Muzzle is towards first-class.
Barrel assembly in certain present embodiment still to be installed in the refueling nozzle 6 for being able to carry out petroleum vapor recovery,
The oil gas in fuel tank is extracted by pump while oiling, to reduce environmental pollution.
In summary for, in present embodiment relatively solely by the chamber 3a that will be equipped with moving member 3b and tonifying Qi path 2
On the spot it is arranged, so that the second blowdown pipe 2a, the first blowdown pipe 2b and chamber 3a are in Y-shape, so that interference in air flow can be prevented
To guarantee the sensitivity of direction device 3, and effect of the air-flow to moving member 3b can be greatly decreased, to prevent unnecessary jump
Rifle improves the convenience and safety used.Also, no setting is required for reducing the components such as the baffle of interference in air flow, is conducive to
Reduce production cost.
Embodiment two
Second embodiment of the present invention provides a kind of refueling nozzle 6, present embodiment be to first embodiment into
One step is improved, and is mainly theed improvement is that, referring to fig. 4, shown in Fig. 5 and Fig. 6, moving member 3b is spherical shape, can be in the effect of gravity
It is rolled in chamber 3a.
By setting spherical for moving member 3b, the sensitive of induction of the moving member 3b to the direction of refueling nozzle 6 can be improved
Degree.Due to spherical sliding part can in chamber 3a along the side wall of chamber 3a rolls, friction is small, work as oiling
When the angle of rifle 6 has certain rotation, spherical moving member 3b can be made to be rolled to jump rifle position and set, to terminate the behaviour of oiling
Make, improves the safety of refueling process.
Certainly, in other embodiments of the invention, the shape of moving member 3b can also be ellipsoid or bullet shaped etc.,
As long as the resistance between appropriate reduction moving member 3b and the side wall of chamber 3a can be played to improve the sensitivity of direction device 3 i.e.
It can.
Embodiment three
Third embodiment of the present invention provides a kind of refueling nozzle 6, and shown in Figure 6, present embodiment is to first
The further improvement of embodiment or second embodiment, mainly thes improvement is that, and the unencapsulated one end setting of chamber 3a
Guide portion 3a2 for moving member 3b movement.
In a preferred embodiment, guide portion 3a2 is formed as conical surface, and gas outlet is formed in the top of conical surface.
Specifically, it is illustrated using moving member 3b as spherical shape.When the base diameter of conical surface is slightly larger than moving member 3b
When, spherical moving member 3b is rolled under gravity.Spherical moving member 3b is rolled to the bottom surface import of conical surface
Continue to roll behind place, until the surface profile of spherical moving member 3b is bonded with the inner surface of tapered sidewalls so that gas without
Method flows into the second blowdown pipe 2a, and tonifying Qi path 2 is blocked.Since tonifying Qi path 2 is blocked, refueling nozzle 6 is produced due to Venturi effect
Raw vacuum and jump rifle, thus make oil valve 1a close, stop oiling movement.
It is noted that other embodiments middle chamber 3a guide portion 3a2 of the invention may be formed as dome shape
Surface, and be connected to by domal surface with the second blowdown pipe 2a.Domal surface can be with spherical moving member 3b preferably
Fitting, while the impact in gas flow can also be preferably further decreased, it is further reduced unnecessary jump rifle
Number.
Embodiment four
4th embodiment of the invention is the further improvement of any embodiment into third embodiment to first,
It mainly thes improvement is that, chamber 3a is formed as long and narrow column, and the length of chamber 3a is 10-40mm, and the diameter of chamber 3a is
5-15mm。
The diameter of length and chamber 3a to chamber 3a limits, and is capable of the reaction time of direction initialization device 3, it is ensured that
Direction device 3 can carry out jump rifle in reasonable time, to close oil valve 1a；It can also prevent due to chamber 3a's simultaneously
Length is too short and causes direction device 3 excessively sensitive, and refueling nozzle 6 is avoided frequently to jump rifle.
In addition, the length of chamber 3a is limited in 10-40mm, the diameter of chamber 3a is limited in 5-15mm, can be effectively
Control the size of refueling nozzle 6.
Embodiment five
5th embodiment of the invention provides a kind of fuel-servicing equipment (not shown), including first into embodiment
Refueling nozzle 6 in any embodiment, and refueling nozzle 6 with and fuel-servicing equipment connect by oiling pipeline.
Compared with prior art, the refueling nozzle 6 of the fuel-servicing equipment in the present invention can add according to the direction controlling of refueling nozzle 6
The movement of oil, so that the safety used greatly improved.
Embodiment six
The present invention also provides a kind of jump rifle control methods of refueling nozzle, comprising:
Fueling procedure: opening oil valve 1a, and fuel oil flows through fuel path 1 and injects fuel tank；
Tonifying Qi step: after being then injected into, air flows through tonifying Qi path 2 and forms negative pressure；
Rotate step: rotation refueling nozzle changes the angle of fuel path 1 and ground；
Regulating step: direction device 3 is started to work under gravity, closes tonifying Qi path 2, is realized and is jumped rifle.
Specifically, shown in referring to figs. 7 and 8, rifle control method is jumped in the oiling of refueling nozzle 6 in present embodiment
Cheng Zhong, starting when posture changes.In normal refuel, barrel assembly is obliquely towards ground, at this point, direction device 3
The posture that refueling nozzle 6 is not detected is abnormal, and moving member 3b rests on the separate gas outlet 3a1's of chamber 3a under gravity
One end.Air flows through tonifying Qi path 2 and forms negative pressure during oiling, it is ensured that refueling process is gone on smoothly.
Refueling nozzle 6 is rotated while refueling, and makes the direction of the barrel assembly of refueling nozzle 6 by becoming obliquely towards ground
It is parallel to the ground or even oblique Shangdi towards sky.At this point, direction device 3 detects the abnormal state of refueling nozzle 6 and beginning
It adjusts, moving member 3b moves to jump rifle position and sets the second blowdown pipe 2a of blocking, so that refueling nozzle 6 jumps rifle, realizes and terminates oiling
Movement.
Compared to existing technologies, the jump rifle control method provided in present embodiment, can detect oiling in time
The attitudes vibration of rifle 6, and the working condition of refueling nozzle 6 is adjusted in time by direction device 3, it greatly improved and adding
Safety during oil.
Embodiment eight
8th embodiment of the invention provides a kind of jump rifle control method of refueling nozzle 6, and present embodiment is to
The further supplement of nine embodiments, further includes reset process: rotation refueling nozzle 6 keeps direction device 3 multiple under the effect of gravity
Tonifying Qi path 2 is opened in position.
Reset process usually carries out after jumping rifle, refuels when the posture due to refueling nozzle 6 has occurred variation and results in
Journey terminates, but volume read-out has not yet been reached when requiring, can be by rotating refueling nozzle 6, so that the oiling direction of barrel assembly is
Obliquely towards ground, left so that moving member 3b is set from jump rifle position under gravity, tonifying Qi path 2 being capable of shape
At negative pressure, so as to continue the operation refueled.
It will be understood by those skilled in the art that in above-mentioned each embodiment, in order to keep reader more preferably geographical,
It solves the application and proposes many technical details.But even if without these technical details and based on the respective embodiments described above
Various changes and modifications can also realize each claim of the application technical solution claimed substantially.Therefore, in reality
In, can to above embodiment, various changes can be made in the form and details, without departing from spirit and model of the invention
It encloses.
Claims (14)
1. a kind of refueling nozzle, comprising:
Vacuum generating device, the vacuum generating device generate vacuum in vacuum area when fuel oil flows through wherein；
Tonifying Qi path, the tonifying Qi path include the first blowdown pipe, and one end of first blowdown pipe connects the refueling nozzle
The tonifying Qi hole of gun barrel；
It is characterized in that, the refueling nozzle further include:
Direction device, the direction device include chamber, installing pipe and moving member；
One end of the chamber is provided with gas outlet, and the gas outlet is connected to the vacuum area, the other end of the chamber
Closing；
The installing pipe includes air inlet, and the air inlet is connected to the other end of first blowdown pipe, and the installing pipe exists
Close to the side wall and the chamber of the chamber of the gas outlet；
The moving member is contained in the chamber, and the moving member can be subjected to displacement in chamber due to gravity, and described
The salable gas outlet of moving member.
2. refueling nozzle according to claim 1, which is characterized in that the refueling nozzle further includes vacuum cap assembly, described true
The presumptive area of empty cap assembly is connected with the vacuum area.
3. refueling nozzle according to claim 2, which is characterized in that fill into the gas of the refueling nozzle from the tonifying Qi hole into
Enter the tonifying Qi path, followed by the direction device and the vacuum generating device, reaches the vacuum cap assembly.
4. refueling nozzle according to claim 2, which is characterized in that fill into the gas of the refueling nozzle from the tonifying Qi hole into
Enter the tonifying Qi path, followed by the direction device and the vacuum cap assembly, reaches the vacuum generating device.
5. refueling nozzle according to claim 3 or 4, in the case where fuel oil flows through the fuel path, when the movement
Part closes the gas outlet or when the tonifying Qi hole is closed, and presumptive area generates vacuum in vacuum cap assembly, so that
The refueling nozzle jumps rifle, closes fuel path.
6. refueling nozzle according to claim 1, which is characterized in that the chamber is formed as column, the installing pipe connection
It is arranged close in the side wall of the chamber in the position of the end face of the gas outlet.
7. refueling nozzle according to claim 2, which is characterized in that the tonifying Qi path further includes the second blowdown pipe, described
One end of second blowdown pipe is connected to the gas outlet of the chamber, and the other end connects the vacuum cap assembly or vacuum hair
Generating apparatus.
8. refueling nozzle according to claim 1, which is characterized in that set between the side wall and the gas outlet of the chamber
It is equipped with the guide portion for guiding the moving member movement.
9. refueling nozzle according to claim 8, which is characterized in that the guide portion is formed as conical surface, the outlet
Mouth is formed in the top of the conical surface.
10. refueling nozzle according to claim 8, which is characterized in that the guide portion is formed as domal surface, it is described go out
Port is formed in the top of the domal surface.
11. refueling nozzle according to claim 6, which is characterized in that the chamber is formed as long and narrow column, the chamber
Length be 10-40mm, the diameter of the chamber is 5-15mm.
12. refueling nozzle according to claim 1, which is characterized in that the moving member is spherical shape, can be rolled in the chamber
It is dynamic.
13. refueling nozzle according to claim 6, which is characterized in that the chamber is connected to the installing pipe by communication port,
And the size of the moving member is greater than the bore of the communication port.
14. a kind of fuel-servicing equipment, which is characterized in that including the refueling nozzle as described in any one of claim 1-13, wherein
The refueling nozzle is connected by the other assemblies of fuel-servicing equipment pipeline and fuel-servicing equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910028103.1A CN109748230A (en) | 2019-01-11 | 2019-01-11 | Refueling nozzle and fuel-servicing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910028103.1A CN109748230A (en) | 2019-01-11 | 2019-01-11 | Refueling nozzle and fuel-servicing equipment |
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| CN109748230A true CN109748230A (en) | 2019-05-14 |
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| CN201910028103.1A Pending CN109748230A (en) | 2019-01-11 | 2019-01-11 | Refueling nozzle and fuel-servicing equipment |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US3548893A (en) * | 1967-10-06 | 1970-12-22 | Dover Corp | Safety mechanism for automatic nozzle |
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