CN109734040A - Refueling nozzle and fuel-servicing equipment - Google Patents
Refueling nozzle and fuel-servicing equipment Download PDFInfo
- Publication number
- CN109734040A CN109734040A CN201910027733.7A CN201910027733A CN109734040A CN 109734040 A CN109734040 A CN 109734040A CN 201910027733 A CN201910027733 A CN 201910027733A CN 109734040 A CN109734040 A CN 109734040A
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- Prior art keywords
- outer shaft
- refueling nozzle
- shaft
- sealing element
- groove
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- 238000007789 sealing Methods 0.000 claims abstract description 72
- 230000033001 locomotion Effects 0.000 claims description 12
- 230000003746 surface roughness Effects 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 8
- 239000000295 fuel oil Substances 0.000 abstract description 5
- 239000003208 petroleum Substances 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000011835 investigation Methods 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 15
- 238000003825 pressing Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000009191 jumping Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- BYACHAOCSIPLCM-UHFFFAOYSA-N 2-[2-[bis(2-hydroxyethyl)amino]ethyl-(2-hydroxyethyl)amino]ethanol Chemical compound OCCN(CCO)CCN(CCO)CCO BYACHAOCSIPLCM-UHFFFAOYSA-N 0.000 description 1
- 208000034693 Laceration Diseases 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The present invention relates to fuel oil filling and Investigation of Petroleum Vapor Recovery Technology field, in particular to a kind of refueling nozzle and fuel-servicing equipments.Wherein, refueling nozzle includes the switch shaft assembly connecting with main shaft and gas circuit valve module, is opened or closed for controlling refueling nozzle, and switch shaft includes outer shaft and outer shaft, outer shaft can move back and forth in outer shaft, and outer shaft includes the sealing element to set within it between wall and the outer wall of outer shaft；A seal groove is at least offered on the inner wall of outer shaft, is embedded with sealing element in seal groove.The position that refueling nozzle provided by the invention passes through change sealing element and seal groove, to which rod-pulling type sealing is changed into piston type sealing, reduce the abrasion that sealing element is subject to and the frictional resistance that sealing element is subject to, effectively extend the service life of sealing element, improves the use feel of refueling nozzle.
Description
Technical field
The present invention relates to fuel oil filling and Investigation of Petroleum Vapor Recovery Technology field, in particular to a kind of refueling nozzle and fuel-servicing equipments.
Background technique
Currently, Investigation of Petroleum Vapor Recovery Technology is increasingly mature, but the Self-closing oil feeder as petroleum vapor recovery end product is generally deposited
Assembling the disadvantages such as processing technology is complicated and reliability is low.Also, it in order to the sealing performance for ensuring refueling nozzle, is refueling
It needs to be arranged multiple sealing elements in rifle to be sealed the oil circuit and gas circuit of refueling nozzle, to improve the reliability of refueling nozzle, really
Protect the safety in use process.
By taking the switch shaft assembly in existing refueling nozzle as an example, switch shaft assembly is connect with vacuum cap assembly, while controlling gas
Road and oil circuit, and operated by trigger.Switching shaft assembly includes axle sleeve and shaft, after pressing trigger, rolling
Needle is fallen into shaft, and shaft is enabled to open gas circuit valve module and oil valve, thus by fuel oil from the pipeline in refueling nozzle
It is filled into fuel tank.
In the prior art, it switchs between the shaft of shaft assembly and axle sleeve and is sealed using piston type.Specifically, in axis
It is arranged fluted on bar, sealing ring can be embedded in groove, thus be fixed on shaft, when adjusting shaft, sealing
Enclose the inner surface movement relative to axle sleeve.Due to the limitation of technology difficulty and cost, the inner surface of axle sleeve is relatively rough, therefore close
Seal is contacted with the inner surface of axle sleeve and that sealing ring when relative motion occurs is big by frictional resistance, and ring wear is fast,
The service life is caused not grown.After prolonged use, due to sealing ring abrasion and cause the leakproofness of gas circuit to decline, thus shadow
Ring conventional refueling operation.Further, since the sealing ring in axle sleeve can be expanded with fuel contacts, sealing ring for a long time, therefore
The frictional resistance between sealing ring and axle sleeve can be further increased, and accelerates the abrasion of sealing ring, causes to press trigger institute
The power needed increases, and then influences the normal use of user.
Summary of the invention
Present invention has been made in view of the above problems, and its purpose is to provide a kind of refueling nozzles, passes through outer shaft and axle sleeve
Between be sealed by the way of dynamic sealing, to reduce the frictional resistance between outer shaft and sealing element, and can be effective
Ground reduces the abrasion that sealing element is subject to, and extends the service life of sealing element, and reduces power needed for operator operates push rod.
The present invention provides a kind of refueling nozzle, including the switch shaft assembly connecting with main shaft and gas circuit valve module, for controlling
Refueling nozzle opens or closes, wherein switch shaft includes outer shaft and outer shaft, and outer shaft can move back and forth in outer shaft, outer shaft
Set includes the sealing element to set within it between wall and the outer wall of outer shaft；A sealing is at least offered on the inner wall of outer shaft
Slot is embedded with sealing element in seal groove.
Compared to existing technologies, refueling nozzle provided by the invention passes through the position of change sealing element and seal groove, from
And rod-pulling type sealing is changed into piston type sealing, reduce the abrasion that sealing element is subject to and the friction that sealing element is subject to resistance
Power effectively extends the service life of sealing element, improves the use feel of refueling nozzle.
Further, preferably, outer shaft offers through-hole axially, elastic component and transmission are provided in through-hole
Part.
Through-hole axially along is set in the outer shaft, elastic component and transmission can be driven after pressing trigger
Part is mobile, so that driving member is moved to predeterminated position, opens oil circuit and gas circuit so as to make to switch shaft assembly.
In addition, preferably, the surface roughness of the lateral wall of outer shaft is in the range of Ra0.2-Ra1.2.
Due to processing outer shaft outer surface simple process and cost is relatively low, by the surface roughness of the lateral wall of outer shaft
Control can reduce the frictional resistance that sealing element is subject to significantly between Ra0.2-Ra1.2, to extend sealing ring and open
The service life of shaft assembly is closed, the cost of production and service switch shaft assembly and refueling nozzle is reduced.
In addition, preferably, sealing element is sealing ring.
Sealing ring integrality is higher, therefore is able to carry out the sealing of full angle, so that integrally-built leakproofness enhances.And
And sealing ring acquisition is easy and low in cost.
In addition, groove, which can be accommodated, to be engaged or separates with outer shaft preferably, being arranged fluted on the driving member of outer shaft
Needle roller.
Needle roller can make switch shaft assembly air exercise on or off close oil circuit and gas circuit by way of engaging or disengaging with groove
It is controlled.When needle roller and groove are detached from, it is unable to control oil circuit pressing trigger and gas circuit is opened, to improve
Safety when using.
Further, it is open preferably, being additionally provided on outer shaft with groove location first, the is arranged on outer shaft
Two openings, needle roller can pass through the first opening and enter groove.
The size of first opening is greater than the size of groove, and the size of the second opening is greater than the size of the first opening.When and only
When the first opening, groove and second opening three's alignment, needle roller can be fallen into groove out of needle roller handle, to make
Shaft assembly, which must be switched, to open or close gas circuit and oil circuit under the control of trigger.
In addition, it is convex to be provided with second on outer shaft preferably, be formed with first boss portion on the lateral wall of outer shaft
Platform portion, and first boss portion can be abutted with second boss portion.
In the diameter situation identical with the diameter of outer shaft in the prior art of outer shaft, since to be mounted on second convex for sealing ring
In platform portion, therefore the area that sealing ring can be contacted with outer shaft is substantially reduced, and can reduce outer shaft and opposite fortune occurs for outer shaft
When dynamic, frictional resistance that outer shaft is subject to.Due to pushing the power of outer shaft to be transferred to outer shaft by trigger, can effectively reduce
Power needed for pressing trigger.In addition, behind setting first boss portion and second boss portion, it, can when pressing trigger
The movement for further limiting outer shaft, to improve the safety used.
Further, preferably, the axis of switch shaft assembly and the axis of main shaft are arranged on same straight line.
By the way that shaft assembly and main shaft setting will be switched on the same line, it can be ensured that can be triggered when switch shaft movement
Main shaft opens or closes to control refueling nozzle.
In addition, preferably, needle roller handle movement, needle roller is rested in groove, is opened when refueling nozzle is in fueling state
It closes axis and opens main shaft and gas circuit valve module.
In addition, preferably, the movement of needle roller handle, needle roller is detached from out of groove when refueling nozzle is in and jumps gun state, and
The first opening is rested on, switch shaft closes main shaft and gas circuit valve module.
In addition, preferably, when refueling nozzle is in and jumps gun state, outer shaft resets, so that the first opening and groove location
It is staggered.
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
Road is connect with fuel-servicing equipment.
Compared with prior art, the refueling nozzle of the fuel-servicing equipment provided in present embodiment, which has, preferably uses feel.
Detailed description of the invention
Fig. 1 is the diagrammatic cross-section of the outer shaft of one embodiment of the present of invention；
Fig. 2 is the diagrammatic cross-section of the outer shaft of one embodiment of the present of invention；
State diagram when Fig. 3 is the switch shaft assembly control jump rifle of one embodiment of the present of invention；
State diagram when the switch shaft assembly control oil circuit and gas circuit that Fig. 4 is one embodiment of the present of invention are opened；
Fig. 5 is the state diagram that the switch shaft after trigger is unclamped in one embodiment of the present of invention；
Fig. 6 is the schematic diagram of the refueling nozzle of one embodiment of the present of invention.
Description of symbols:
1- switchs shaft assembly；2- outer shaft；2a- seal groove；2b- second is open；2c- first boss portion；3- outer shaft；3a-
Through-hole；3b- elastic component；3c- driving member；3c1- groove；3d- first is open；3e- second boss portion；4- sealing ring；5- trigger is opened
It closes；6- needle roller；7- needle roller handle；8- refueling nozzle.
Specific embodiment
With reference to the accompanying drawings of the specification, the present invention is further described in detail.Schematically simplification is shown in attached drawing
Switch shaft assembly and the structure of refueling nozzle etc. are gone out.
Embodiment one
First embodiment of the invention provides a kind of refueling nozzle 8, including what is opened or closed for controlling refueling nozzle 8
Switch shaft assembly 1.Referring to shown in Fig. 1, Fig. 2 and Fig. 6, switch shaft assembly 1 includes outer shaft 3 and outer shaft 2.Wherein, outer shaft 3 can
It is moved back and forth in outer shaft 2, which is characterized in that sealed between outer shaft 3 and outer shaft 2 using rod-pulling type, outer shaft 2 includes setting
Set the sealing element (not shown) between its inner wall and the outer wall of outer shaft 3.The axis of the axis and main shaft that switch shaft assembly 1 is arranged
On same straight line.
By the way that shaft assembly 1 and main shaft setting will be switched on the same line, it can be ensured that the energy when switching shaft assembly 1 and working
Main shaft is enough triggered, is opened or closed to control refueling nozzle 8.
In simple terms, the switch shaft assembly 1 that present embodiment provides replaces piston type to seal using rod-pulling type sealing, thus
When opposite slide can occur between outer shaft 3 and the sealing element of outer shaft 2, reduce frictional force between the two.Meanwhile pull rod
Formula seals the sealing performance that can't reduce sealing element, so that it is guaranteed that switch shaft assembly 1 can drive under the control of trigger 5
Dynamic refueling nozzle 8 works normally.
In order to improve the service life of switch shaft assembly 1 and refueling nozzle 8, in the present embodiment, referring to Fig. 1, Fig. 2 and
Shown in Fig. 6, switch shaft assembly 1 is sealed using the rod-pulling type that the inside diameter surface of sealing ring 4 is sealed.Specifically, outer shaft 2
Inner wall at least offer a seal groove 2a, wherein seal groove 2a is annular in shape and sets along the circumferential direction of the inner wall of outer shaft 2
It sets, and is embedded with sealing element in seal groove 2a.Wherein, the diameter of section of sealing ring 4 slightly larger than seal groove 2a width with
And the height of seal groove 2a.When installing sealing ring 4, sealing ring 4 is squeezed and deformation occurs, so as to engage securely
In seal groove 2a.Also, in the sliding process of outer shaft 3, the extruding by outer shaft 3 always of sealing ring 4, therefore can ensure
Its sealing effect, so that it is guaranteed that refueling nozzle 8 using safe.
Also, in the present embodiment, outer shaft 3 offers through-hole 3a axially, is arranged in through-hole 3a flexible
Part 3b and driving member 3c.Fluted 3c1 is set on the driving member 3c of outer shaft 3, and groove 3c1, which can be accommodated, to be engaged or divided with outer shaft 3
From needle roller 6.Meanwhile first opening 3d corresponding with the position groove 3c1 is additionally provided on outer shaft 3, needle roller 6 can pass through the
One opening 3d enters groove 3c1.
Wherein, after operating trigger switch 5, outer shaft 3 slides in outer shaft 2 under the drive of transmission component.Driving member 3c
Along the axial movement of outer shaft 3, so that elastic component 3b compression or diastole between outer shaft 3 and driving member 3c.Due to outer shaft
Set 2 is fixedly mounted, therefore outer shaft 3 can circumferentially slide in outer shaft 2.With the cunning of outer shaft 3 and driving member 3c therein
Dynamic, when the groove 3c1 on driving member 3c is overlapped with the position of the first opening 3d of outer shaft 3, in vacuum cap assembly 6 energy of needle roller
It enough falls into the groove 3c1 of driving member 3c, so that main shaft opens oil circuit valve.
In simple terms, the refueling nozzle in present embodiment includes following several situations.When refueling nozzle 8 is in fueling state
When, needle roller handle 7 moves, and needle roller 6 rests in groove 3c1, and switch shaft assembly 1 opens main shaft and gas circuit valve module.
When refueling nozzle 8, which is in, jumps gun state, needle roller handle 7 is moved, and needle roller 6 is detached from out of groove 3c1, and rests on the
At one opening 3d, switch shaft assembly 1 closes main shaft and gas circuit valve module.
When refueling nozzle 8, which is in, jumps gun state, outer shaft 3 resets, so that the first opening position 3d and groove 3c1 is staggered.
More specifically, for starting to refuel and terminate to refuel, the state of switch shaft assembly 1 is illustrated.
When being ready for refueling, referring to fig. 4 and shown in Fig. 6, opens fuel oil storage equipment and (connected by pipeline and refueling nozzle
Connect) on oil valve so that effect campaign of the vacuum cap assembly in oil pressure, needle roller handle 7 is also therewith in the second opening 2b
Movement.Trigger 5 is pressed at this time, and outer shaft 3 is axially moved under the action of transmission component along itself, so that therein first opens
Mouth 3d is fallen into the range of the second opening 2b, and the groove 3c1 on driving member 3c is aligned with the second opening 2b.Later, needle roller 6 slides
In the groove 3c1 of driving member 3c, the effect of further conductance, to open oil circuit valve, enable fuel oil swimmingly from
It is flowed out in refueling nozzle 8.
When terminating to refuel, switch shaft assembly 1 includes jumping gun state and jumping rifle to reset two different states.Work as switch shaft
When component enters jump gun state, shown in Figure 3, due to the effect of vacuum, the diaphragm unit in vacuum cap assembly is moved upwards,
To drive needle roller handle 7 to move upwards, needle roller 6 is driven to be detached from from groove 3c1 by needle roller handle 7, and be fastened on the first opening
In 3d.At this point, due to there is no a transmission of needle roller 6, driving member 3c can only compression elastic piece 3b, and oil circuit valve can not be opened, thus
It can not refuel.When switching shaft assembly and being in the state for jumping rifle reset, shown in Figure 5, drive of the needle roller 6 in needle roller handle 7
Lower move is detached from from switch shaft assembly 1, and switch shaft returns to initial position.At this point, no matter whether trigger 5 is pressed, oil circuit
Valve is in closed state.
In general, the position that the refueling nozzle 8 of present embodiment passes through sealing element and seal groove 2a in alternation switch shaft assembly 1
It sets, so that rod-pulling type sealing is changed into piston type sealing, reduces abrasion that sealing ring 4 is subject to and sealing ring 4 is subject to
Frictional resistance effectively extends the service life of sealing ring 4, improves the use feel of refueling nozzle 8.
Embodiment two
Second embodiment of the present invention provides a kind of refueling nozzle 8, present embodiment be to first embodiment into
One step is improved, and is mainly theed improvement is that, in the present embodiment, shown referring to figs. 2 and 3, the surface of the lateral wall of outer shaft 3
Roughness is in the range of Ra0.2-Ra1.2.
It was found by the inventors of the present invention that when the rough surface of the lateral wall of outer shaft 3 is greater than Ra1.2, for sealing ring 4
The abrasion of contact surface is extremely serious, not only influences the use feel of refueling nozzle 8, while seriously affecting the service life of sealing ring 4.
And when the surface roughness of outer shaft 3 is less than Ra0.2, the cost for processing 3 surface of outer shaft can not only be significantly increased, meanwhile, by
It is excessively smooth in the surface of outer shaft 3, sealing ring 4 may be made to adhere to the surface of outer shaft 3, when outer shaft 3 moves, may cause
The surface of local laceration sealing ring 4, so the surface roughness of outer shaft 3 is limited in the range of Ra0.2-Ra1.2 by the present invention.
Specifically, conventionally, as the limitation of technology difficulty and processing cost, the table of the inner wall of outer shaft 2
Surface roughness is generally in the range of Ra1.2-Ra1.6.Within this range, for the refueling nozzle 8 used for the first time, by
It in 4 surface relative smooth of sealing ring, and not yet expands, therefore its frictional resistance being subject to is smaller, user is usually using 10N
The power of effect can press trigger 5, so that driving switch shaft assembly 1 works.However, with using the time to increase, by
In reasons such as the abrasions and volume expansion on 4 surface of sealing ring, so that the frictional resistance that sealing ring 4 is subject to is significantly increased, at this time
Pressing power required for trigger 5 then increases to 60N-80N.
In the present embodiment, the outer side wall surface roughness of outer shaft 3 can be set to Ra0.3.It is used for first time
The case where, power needed for pressing the trigger 5 of the refueling nozzle 8 in present embodiment controls between 3N-5N substantially.Through too long
After the use of time, power needed for pressing trigger 5 is basically stable at 20N or less.The two is compared, switch provided by the invention
Shaft assembly 1 can greatly improve the use feel of refueling nozzle 8, be applied to power on trigger 5 essentially in the prior art by
25% of power needed for trigger action switch 5.Also, since the technology difficulty of the lateral wall of polishing outer shaft 3 is low and low in cost, because
This is very suitable for mass production.
Embodiment three
Third embodiment of the present invention provides a kind of refueling nozzle 8, and present embodiment is to the first and second embodiment party
Formula further improvement, mainly the improvement is that, in the present embodiment, referring to figure 1 and figure 2, in the outer of outer shaft 3
It is formed with first boss portion 2c on side wall, is provided with second boss portion 3e on outer shaft 2, and first boss portion 2c can be with
Second boss portion 3e is abutted.
Specifically, in the present embodiment, one end of outer shaft 2 is formed with second boss portion 3e, wherein second boss
Portion 3e is extended internally by the inner wall of outer shaft 2 and is formed as annular, and seal groove 2a is located at the side wall with second boss portion.With
Accordingly, the first boss portion 2c that can abut therewith is formed on the lateral wall of outer shaft 3, wherein first boss portion 2c by
The outside portion of outer shaft 3 extends outwardly and is formed, and its section is annular.The outer diameter of first boss portion 2c is equal to or slightly less than outer shaft
The internal diameter of set 2, the inner diameter size of second boss portion 3e can allow for the end of outer shaft 3 to pass through.Outer shaft 3 in the present embodiment
In diameter situation identical with the diameter of outer shaft 3 in the prior art, since sealing ring 4 is mounted in second boss portion 3e,
The area that sealing ring 4 can be contacted with outer shaft 3 is substantially reduced, when can reduce outer shaft 3 and the generation relative motion of outer shaft 2, outside
The frictional resistance that axis 3 is subject to, due to push outer shaft 3 power there is trigger 5 to be transferred to outer shaft 3, can effectively reduce by
Power needed for trigger action switch 5.In addition, after setting first boss portion 2c and second boss portion 3e, when pressing trigger 5,
The movement of outer shaft 3 can be further limited, to improve the safety used.
Embodiment four
4th embodiment of the invention provides a kind of fuel-servicing equipment, including above-mentioned refueling nozzle, and wherein refueling nozzle passes through
The connection of the other assemblies of pipeline and fuel-servicing equipment.
Compared with prior art, the refueling nozzle of the fuel-servicing equipment provided in present embodiment, which has, preferably uses feel.
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 (12)
1. a kind of refueling nozzle, including the switch shaft assembly being connect with main shaft and gas circuit valve module, for control refueling nozzle open or
It closes, including outer shaft and outer shaft, the outer shaft can move back and forth in the outer shaft, which is characterized in that the outer shaft
Set includes the sealing element to set within it between wall and the outer wall of the outer shaft；
A seal groove is at least offered on the inner wall of the outer shaft, is embedded with the sealing element in the seal groove.
2. refueling nozzle according to claim 1, which is characterized in that the outer shaft offers through-hole axially, in institute
It states and is provided with elastic component and driving member in through-hole.
3. refueling nozzle according to claim 1, which is characterized in that the surface roughness of the lateral wall of the outer shaft is in
In the range of Ra0.2-Ra1.2.
4. refueling nozzle according to claim 1, which is characterized in that the sealing element is sealing ring.
5. refueling nozzle according to claim 2, which is characterized in that be arranged on the driving member of the outer shaft it is fluted,
The groove can accommodate and outer shaft engagement or isolated needle roller.
6. refueling nozzle according to claim 5, which is characterized in that be additionally provided on the outer shaft and the groove location
Corresponding first opening, is arranged the second opening on the outer shaft, and the needle roller can pass through first opening and enter institute
Groove is stated, the needle roller handle for holding the needle roller can be open by described second.
7. refueling nozzle according to claim 4, which is characterized in that be formed with first boss on the lateral wall of the outer shaft
Portion is provided with second boss portion on the outer shaft, and the first boss portion can be abutted with the second boss portion.
8. refueling nozzle according to any one of claims 1-7, which is characterized in that it is described switch shaft assembly axis with
The axis of the main shaft is arranged on same straight line.
9. refueling nozzle according to claim 8, which is characterized in that when the refueling nozzle is in fueling state, the rolling
The movement of needle handle, the needle roller stop in the groove, and the switch shaft opens the main shaft and the gas circuit valve module.
10. refueling nozzle according to claim 8, which is characterized in that when the refueling nozzle, which is in, jumps gun state, the rolling
The movement of needle handle, the needle roller is detached from out of described groove, and rests on first opening, described in the switch shaft closing
Main shaft and the gas circuit valve module.
11. refueling nozzle according to claim 8, which is characterized in that described outer when the refueling nozzle, which is in, jumps gun state
Axis resets, so that first opening is staggered with the groove location.
12. a kind of fuel-servicing equipment, including the refueling nozzle as described in any one of claim 1-11, wherein the refueling nozzle is logical
The other assemblies for crossing fuel-servicing equipment pipeline and fuel-servicing equipment connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910027733.7A CN109734040B (en) | 2019-01-11 | Oil gun and oil filling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910027733.7A CN109734040B (en) | 2019-01-11 | Oil gun and oil filling equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109734040A true CN109734040A (en) | 2019-05-10 |
| CN109734040B CN109734040B (en) | 2024-06-11 |
Family
ID=
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112010255A (en) * | 2020-08-26 | 2020-12-01 | 浙江通联石油机械有限公司 | Oil gun |
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| CN112010255A (en) * | 2020-08-26 | 2020-12-01 | 浙江通联石油机械有限公司 | Oil gun |
| CN112010255B (en) * | 2020-08-26 | 2022-06-17 | 浙江通联石油机械有限公司 | Oil gun |
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