CN105502271A - Refueling sleeve - Google Patents
Refueling sleeve Download PDFInfo
- Publication number
- CN105502271A CN105502271A CN201610007974.1A CN201610007974A CN105502271A CN 105502271 A CN105502271 A CN 105502271A CN 201610007974 A CN201610007974 A CN 201610007974A CN 105502271 A CN105502271 A CN 105502271A
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- CN
- China
- Prior art keywords
- fuel filler
- filler pipe
- telescopic sleeve
- pipe
- sleeve pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/42—Filling nozzles
- B67D7/54—Filling nozzles with means for preventing escape of liquid or vapour or for recovering escaped liquid or vapour
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention discloses a refueling sleeve which is used for a refueling gun. The refueling sleeve comprises a refueling pipe and a retractable sleeve, wherein an inlet end of the refueling pipe is connected onto a gun body of the refueling gun and fuel oil can pass through the refueling pipe; the retractable sleeve sleeves the refueling pipe; at a static state, the end part of an outlet end of the refueling pipe is located in the retractable sleeve; and at a refueling state, the retractable sleeve is compressed, and the outlet end of the refueling pipe stretches out from the retractable sleeve. According to the refueling sleeve provided by the invention, the retractable sleeve sleeves the refueling pipe so that the refueling pipe is not exposed to the outside; and in a refueling process, the retractable sleeve is compressed and the refueling pipe stretches into a refueling container, so that fuel oil and oil gas are prevented from leakage.
Description
Technical field
The present invention relates to a kind of nozzle component, particularly relate to and a kind ofly add tubing and casing for nozzle.
Background technology
At present, refueling to vehicle is all adopt nozzle, oil is injected the fuel tank on vehicle.Usually, in refueling process, be in open state between fuel filler pipe and fuel tank, oil gas easily leaks, and causes potential safety hazard.In addition, after oiling terminates, after nozzle departs from fuel tank, out, a part of oil gas also can evaporate the fluid meeting water clock of its gun barrel remnants, goes back contaminated environment, there is potential safety hazard while causing energy dissipation.
Although more existing nozzle gun barrels can realize self-sealing function, and the Self-sealing valve realizing self-sealing function is arranged on the rifle body of nozzle, the trapped fuel being positioned at gun barrel after Self-sealing valve still can water clock out, thoroughly can not realize antidrip.
Summary of the invention
The technical problem to be solved in the present invention is, provide a kind of can be used for nozzle add tubing and casing.
The technical solution adopted for the present invention to solve the technical problems is: provide one to add tubing and casing, for nozzle, comprises entrance point and is connected to the fuel filler pipe that the confession fuel oil on described fuel oil gun body passes through and the telescopic sleeve pipe be set in outside described fuel filler pipe;
In quiescence, the exit end end of described fuel filler pipe is positioned at described telescopic sleeve pipe;
At fueling state, compress described telescopic sleeve pipe, the described exit end of described fuel filler pipe stretches out in described telescopic sleeve pipe.
Preferably, this adds tubing and casing and also comprises and be arranged on described telescopic sleeve pipe away from the closeouts on the end, one end of described rifle body;
In described quiescence, described closeouts by described fuel filler pipe shutoff in described telescopic sleeve pipe;
At described fueling state, the described exit end of described fuel filler pipe backs down described closeouts and stretches out described telescopic sleeve pipe.
Preferably, described closeouts comprises shutoff seat and plugging sheet, the passage that described shutoff seat is provided with its two ends through, passes for described fuel filler pipe, and described plugging sheet is rotatably arranged in described passage by elastic reset part, closes or open described passage; The end abutment of described telescopic sleeve pipe is on described shutoff seat;
In described quiescence, the described exit end of described fuel filler pipe is positioned at described passage, and is positioned at inside described plugging sheet, and described plugging sheet is by described channel enclosed; At described fueling state, described fuel filler pipe backs down described plugging sheet, and make described plugging sheet rotate open described passage, the described exit end of described fuel filler pipe stretches out described shutoff seat through described passage.
Preferably, this adds tubing and casing and also comprises the first end cap being set in described fuel filler pipe entrance point periphery, and the periphery of described first end cap is provided with ring-shaped step, described telescopic sleeve pipe towards one end end abutment of described rifle body on described ring-shaped step;
Described first end covers and is provided with at least one through hole, and described through hole radial direction extends through described first end cap, is communicated with described telescopic sleeve pipe inner; Described through hole is provided with the vacuum-breaking valve closed or open described through hole, opens and open described through hole when described telescopic sleeve pipe internal negative pressure.
Preferably, described telescopic sleeve pipe is elastic metallic bellows.
Preferably, the bendable tune that described fuel filler pipe comprises the linkage section be connected with described rifle body, the inserting paragraph inserting fuel tank and is connected between described linkage section and inserting paragraph, described entrance point is positioned on described linkage section, and described exit end is positioned in described inserting paragraph.
Preferably, be provided with in described fuel filler pipe along the axial extension of described fuel filler pipe and the oil discharge passage be isolated and self-styled passage; The through described fuel filler pipe of described oil discharge passage; Described self-styled passage ends in described inserting paragraph, and the sidewall of described inserting paragraph is provided with the radial through pore self-sealing to described self-styled passage.
Preferably, the exit end place of described fuel filler pipe is also provided with drip-proof boiler check valve;
Described boiler check valve comprises pedestal, telescopic elastic component and is connected to the valve block on described pedestal by described elastic component; Described valve block is arranged in described oil discharge passage, by described valve block near or move away from described pedestal direction and control the break-make of described oil discharge passage.
Preferably, this adds tubing and casing and also comprises the protection sleeve being set in described telescopic sleeve pipe periphery, and the length of described telescopic sleeve pipe and fuel filler pipe is greater than the length of described protection sleeve;
In described quiescence, described protection sleeve is stretched out in described telescopic sleeve pipe one end;
At described fueling state, described telescopic sleeve pipe compression enters in described protection sleeve, and the exit end of described fuel filler pipe is stretched out in described telescopic sleeve pipe.
Preferably, described protection sleeve comprise body and be arranged on described body end with the attaching parts of fuel lid rotary fastening;
Described attaching parts comprises axis and is connected to the cylindrical shell on described body end and is arranged on the bindiny mechanism that described cylindrical shell fastens with described fuel lid;
The described bindiny mechanism shackle member comprised on several and described fuel lid is passed through to rotate the stopper engaged, and described stopper is arranged on the end face of described cylindrical shell away from described body; Several described stopper is spaced apart, and the gap-forming between described stopper is passed for described shackle member with the breach entering described cylindrical shell; Or,
Described bindiny mechanism is included in the screw thread coordinated with described fuel lid that described cylinder inboard wall is arranged.
Beneficial effect of the present invention: fuel filler pipe is wherein sheathed by telescopic sleeve pipe, makes fuel filler pipe not leak outside; When refueling, telescopic sleeve pipe compression, makes fuel filler pipe stretch out to enter to add oil vessel, can prevent fuel oil and oil and gas leakage.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 be one embodiment of the invention add the structural representation of tubing and casing on nozzle;
Fig. 2 is the section-drawing of nozzle shown in Fig. 1;
Fig. 3 is the structural representation of nozzle shown in Fig. 2 when being in fueling state;
Fig. 4 is the structural representation of fuel filler pipe in Fig. 2;
Fig. 5 is the section-drawing of telescopic sleeve pipe in Fig. 2;
Fig. 6 is the structural representation of protection sleeve in Fig. 2;
Fig. 7 is the perspective view of fuel lid in Fig. 3;
Fig. 8 is the cross-sectional view of another embodiment of fuel lid in Fig. 3.
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
As shown in Figure 1, 2, one embodiment of the invention add tubing and casing, for nozzle, be assemblied on the rifle body 10 of nozzle.This adds tubing and casing and comprises fuel filler pipe 20 and be set in the telescopic sleeve pipe 30 outside fuel filler pipe 20, and the entrance point of fuel filler pipe 20 is connected on rifle body 10, passes through for fuel oil.
As shown in Figure 2, in quiescence (non-refuelling), the exit end end of fuel filler pipe 20 is positioned at telescopic sleeve pipe 30; As shown in Figure 3, at fueling state, compression telescopic sleeve pipe 30, the exit end of fuel filler pipe 20 stretches out in telescopic sleeve pipe 30.
Wherein, fuel filler pipe 20 can be the metal tube of solid shape, also can be flexible metal tube.With reference to figure 4, in the present embodiment, fuel filler pipe 20 is flexible fuel filler pipe, it comprise be connected with rifle body 10 linkage section 21, insert the inserting paragraph 23 that fuel tank etc. adds oil vessel and the bendable tune 22 be connected between linkage section 21 and inserting paragraph 23, the entrance point of fuel filler pipe 20 is positioned on linkage section 21, and exit end is positioned in inserting paragraph 23.Realize the bending of whole fuel filler pipe 20 by the bending of bendable tune 22, the direction of the inserting paragraph 23 of adjustable fuel filler pipe 20, facilitates insertion to add oil vessel and refuels.
Preferably, the bendable tune 23 of fuel filler pipe 20 is wavy metal pipeline section.
Be provided with oil discharge passage 24 and self-styled passage 25 in fuel filler pipe 20, oil discharge passage 24 and self-styled passage 25 axially extend along fuel filler pipe 20 and are isolated; Oil discharge passage 24 passes through to add oil vessel to enter for fuel oil.Wherein, the through fuel filler pipe 20 of oil discharge passage 24, namely extends to inserting paragraph 23 from linkage section 21, the entrance point of through fuel filler pipe 20 and exit end.Self-styled passage 25 ends in inserting paragraph 23, runs through the entrance point of fuel filler pipe 20, and does not run through the exit end of fuel filler pipe 20.Further, the sidewall of inserting paragraph 23 is provided with the radial through pore self-sealing 26 to self-styled passage 25, and when refueling, pore self-sealing 26 can be communicated with oiling internal tank.When adding oil vessel and filling it up with oil, fluid blocks pore self-sealing 26, and nozzle is then jumped rifle and stopped refueling.
Further, the exit end place of fuel filler pipe 20 is also provided with drip-proof boiler check valve 27.This boiler check valve 27 is positioned at the outside of self-styled passage 25 on fuel filler pipe 20.Boiler check valve 27 also avoids nozzle frequently to jump rifle.
As a kind of embodiment, the valve block 273 that boiler check valve 27 is comprised pedestal 271, telescopic elastic component 272 and is connected to by elastic component 272 on pedestal 271.Valve block 273 is arranged in oil discharge passage 24, by valve block 273 near or move away from pedestal 271 direction and control the break-make of oil discharge passage 24.Boiler check valve 27 is arranged on the exit end of fuel filler pipe 20 by pedestal 271.The periphery of pedestal 271 can be provided with screw thread and coordinate with the inner circumferential of inserting paragraph 23, or the exit end being provided with step and inserting paragraph 23 fastens.
The end face relative with valve block 273 of pedestal 271 is also provided with through hole 274, is connected with oil discharge passage 214 when oil discharge passage 214 is open.
Further, sealed step 28 is provided with in oil discharge passage 24; Valve block 273 is press seal step 28 under the pushing effect of elastic component 272, closes oil discharge passage 24.
Sealing step 28 is for being arranged on the ring-shaped step on inserting paragraph 23 inwall, and the hole in the middle part of ring-shaped step is less than valve block 273, when valve block 273 is pressed in sealed step 28, is closed in the hole in the middle part of ring-shaped step, realizes closing of oil discharge passage 24.
During oiling, composition graphs 2,4, fuel oil flow to fuel filler pipe 20 from rifle body 10, valve block 273 is flow at oil discharge passage 24, pushing valve block 273, make valve block 273 leave sealed step 28 to moving near pedestal 271 direction, open oil discharge passage 24, fuel oil is flowed out by through hole 274 on oil discharge passage 24 and pedestal 271.When there being fuel flow returns to flow to valve block 273 by through hole 274, valve block 273 is pressed in sealed step 28 by pushing, closes oil discharge passage 24, prevents fuel oil from entering oil discharge passage 24.When non-refuelling, valve block 273 is pressed in sealed step 28 by the pushing of elastic component 272 restoring force, closes oil discharge passage 24, prevents fuel filler pipe 20 oil dripping, thus play drip-proof effect.
Telescopic sleeve pipe 30 is preferably elastic metallic bellows, is set in outside fuel filler pipe 20, and fuel filler pipe 20 is not exposed, protection fuel filler pipe 20.
Further, as shown in Fig. 2,3,5, this adds tubing and casing and also comprises and be arranged on telescopic sleeve pipe 30 away from the closeouts 50 on the end, one end of rifle body 10.In quiescence, closeouts 50 by fuel filler pipe 20 shutoff in telescopic sleeve pipe 30; At fueling state, the exit end of fuel filler pipe 20 backs down closeouts 50 and stretches out telescopic sleeve pipe 30.
Closeouts 50 comprises shutoff seat 51 and plugging sheet 52, the passage 53 that shutoff seat 51 is provided with its two ends through, passes for fuel filler pipe 20, and plugging sheet 52 is rotatably arranged in passage 53 by elastic reset part, closes or open channel 53; The end abutment of telescopic sleeve pipe 30 is on shutoff seat 51.The periphery of shutoff seat 51 can be provided with step and coordinate with the end of telescopic sleeve pipe 30.
In quiescence, the exit end of fuel filler pipe 20 is positioned at passage 53, and is positioned at inside plugging sheet 52, and passage 53 is closed by plugging sheet 52; At fueling state, fuel filler pipe 20 backs down plugging sheet 52, makes plugging sheet 52 rotate open channel 53, and the exit end of fuel filler pipe 20 stretches out shutoff seat 51 through passage 53.
Further, this adds tubing and casing and also comprises the first end cap 29 being set in fuel filler pipe 20 entrance point periphery, the periphery of the first end cap 29 is provided with ring-shaped step 290, one end of telescopic sleeve pipe 30, is fixed on fuel filler pipe 20 towards one end end abutment of rifle body 10 by telescopic sleeve pipe 30 on ring-shaped step 290.Telescopic sleeve pipe 30 is also closed by the first end cap 29, avoids dust etc. to enter, and oil gas also can be avoided to leak.
One end of first end cap 29 can be close-coupled on rifle body 10, and telescopic sleeve pipe 30 is from the other end of the first end cap 29 its periphery sheathed and be connected on ring-shaped step 290.Be formed with gap between the periphery of fuel filler pipe 20 and the first end cap 29, make space between telescopic sleeve pipe 30 and fuel filler pipe 20 by the intracavity inter-connection of gap and rifle body 10; During oiling, oil gas is drawn back oil tank by the vacuum pumping pump before nozzle from the space between telescopic sleeve pipe 30 and fuel filler pipe 20.
Produce negative pressure in order to avoid vacuum pump power is excessive in telescopic sleeve pipe 30 inside excessive, the first end cap 29 is provided with at least one through hole 291, and through hole 291 radial direction extends through first end cap 29, is communicated with telescopic sleeve pipe 30 inner.Through hole 291 is provided with the vacuum-breaking valve 292 closed or open through hole 291, opens and open through hole 292 when telescopic sleeve pipe 30 internal negative pressure.Vacuum-breaking valve 292 comprises the components such as valve seat, spring, steel ball, and when telescopic sleeve pipe 30 internal negative pressure, steel ball is mobile to valve seat inside at valve seat opening part, the passage on open valve seat, thus open through hole 291.
Further, this adds tubing and casing and also comprises the protection sleeve 40 being set in telescopic sleeve pipe 30 periphery, and the length of telescopic sleeve pipe 30 and fuel filler pipe 20 is greater than the length of protection sleeve 40.In quiescence, protection sleeve 40 is stretched out in telescopic sleeve pipe 30 one end; At fueling state, telescopic sleeve pipe 30 compression enters in protection sleeve 40, and the exit end of fuel filler pipe 20 is stretched out in telescopic sleeve pipe 30.Protection sleeve 40 pairs of telescopic sleeve pipes 30 and fuel filler pipe 20 play further protective effect.
Again as Figure 1-3, protection sleeve 40 is metal tube, and it can comprise the body 41 being set in telescopic sleeve pipe 30 periphery and the attaching parts being arranged on body 41 end, and attaching parts is used for and fuel lid 60 rotary fastening.By protection sleeve 40 and fuel lid 60 rotatable engagement, nozzle and the oil filling port added on oil vessel can be tightly connected, realize the sealing in refueling process, prevent oil-gas diffusion in air, safety and environmental protection.
Attaching parts can comprise axis and be connected to the cylindrical shell 42 on body 41 end and be arranged on the bindiny mechanism that cylindrical shell 42 fastens with fuel lid 60.Cylindrical shell 42 is connected with body 41 inside.
Attaching parts and body 41 are structure as a whole, one-body molded when making.In attaching parts, the internal diameter of cylindrical shell 42 is greater than the internal diameter of body 41, thus cylindrical shell 42 is radially outward given prominence on body 41, forms cover body structure and coordinates with fuel lid 60.
In the present embodiment, bindiny mechanism comprises several shackle member 61 with on fuel lid 60 by rotating the stopper 43 engaged, and stopper 43 is arranged on the end face of cylindrical shell 42 away from body 41, and extends to the central axial direction of cylindrical shell 42.Several stopper 43 is spaced apart, and the gap-forming between stopper 43 is passed for shackle member 61 with the breach 44 entering cylindrical shell 42.Several stopper 43 is symmetrically distributed on the end face of cylindrical shell 42 centered by the axis of cylindrical shell 42.
As a kind of embodiment, as shown in Figure 6, stopper 43 comprises on cylindrical shell 42 end face to the first catch 431 that the bending of cylindrical shell 42 central axial direction extends.The rotatable inner side being fastened on the first catch 431 of the shackle member 61 of fuel lid 60.Stopper 43 also comprises the second catch 432 extended to the bending of body 41 direction from the free end of the first catch 431, the length of the second catch 432 is less than the length of cylindrical shell 42, thus leave interval between the second catch 432 and cylindrical shell 42 other end, engage wherein for shackle member 61.
Protection sleeve 40 shown in Fig. 6, bindiny mechanism comprises three along the evenly spaced stopper 43 of cylindrical shell 42 circumferencial direction.Shackle member 61 on fuel lid 60 and stopper 43, breach 44 quantity are consistent, and each shackle member 61 aims at a breach 44 respectively, after entering cylindrical shell 41, is engaged in inside stopper 43, realizes rotary fastening after rotating to an angle from breach 44.Shackle member 61 can be overhead structure, is fastened between the second catch 432 and the first catch 431.
Cylindrical shell 42 is connected with body 41 towards one end of body 41 by annular side plate 45.This annular side plate 45 can be vertically connected between cylindrical shell 42 and body 41.Annular side plate 45 is relative with stopper 43, lays respectively at the two ends place of cylindrical shell 42.
In other embodiments, bindiny mechanism also can be included in the screw thread coordinated with fuel lid 60 that cylindrical shell 42 inwall is arranged, thus attaching parts is by screw connection manner and fuel lid 60 rotatable engagement.
After protection sleeve 40 with fuel lid 60 rotary fastening, closeouts 50 is also closely connected on fuel lid 60, makes to seal between fuel filler pipe 20 and fuel lid 60, prevents oil gas from leaking.
In addition, also can sheathed second end cap in the periphery of telescopic sleeve pipe 30, protection sleeve 40 can be connected on the second end cap away from the other end of fuel lid 60, makes protection sleeve 40 enclose inside.Further, in order to prevent producing negative pressure in protection sleeve 40, the second end cap can be arranged channel connection inner to protection sleeve 40, passage arranges vacuum-breaking valve.When protection sleeve 40 internal pressure is too low, the passage of steel ball in valve seat on mobile open and protection sleeve pipe 40 of this vacuum-breaking valve, makes protection sleeve 40 inside connect extraneous air.
This adds tubing and casing and can comprise or not comprise fuel lid 60.Shackle member 61 on fuel lid 60 can in barb-like.
With reference to figure 3 and Fig. 7, with the fuel lid 60 of protection sleeve 40 rotatable engagement, can comprise the cylinder base 62 with passage 620 and be arranged on passage 620 for opening and closing the shell fragment 63 of passage 620, shackle member 61 is arranged on cylinder base 62 periphery.Fuel lid 60 is assemblied in and adds on the oil filling port of oil vessel.Fuel lid 60 does not need to take off when refueling, with protection sleeve 40 rotatable engagement after, telescopic sleeve pipe 40 compression enters protection sleeve 40, and fuel filler pipe 20 stretches out protection sleeve 40 can back down shell fragment 63, is entered add in oil vessel by the passage 620 of fuel lid 60.After oiling completes, protection sleeve 40 and fuel lid 60 rotate and depart from, and fuel filler pipe 20 leaves and adds oil vessel, and telescopic sleeve pipe 30 telescopic sleeve pipe 30 stretches recovery to fuel filler pipe 20 periphery, and the shell fragment 63 of fuel lid 60 resets and to be closed by its passage 620.
Particularly, shell fragment 63 is rotatably connected on the inwall of cylinder base 62 by elastic reset part (as torsion spring etc.), rotates with open wireless tunnel 620 under external force to fuel tank internal direction.Cylinder base 62 can comprise the first end 621 that is connected with fuel tank and the second end 622 with protection sleeve 10 rotatable engagement.The first end 621 of cylinder base 62 is corresponding with the size of reservoir port to be arranged, and the periphery of this first end 621 or the junction of first end 621 and the second end 622 also can be provided with sealed step or seal ring, closely cooperate with reservoir port.Shackle member 61 is arranged on the second end 622 periphery.First end 621 periphery can be provided with screw thread and reservoir port is spirally connected.
In an embodiment of fuel lid 60, as shown in Figure 3, passage 620 inwall of corresponding second end 622 is provided with step surface 6201, and shutoff seat 51 end of closeouts 50 can closely be connected on this step surface 6201; Also can arranging seal ring further between shutoff seat 51 end and step surface 6201 to seal, such as, seal groove 510 being set in periphery, shutoff seat 51 end, for placing seal ring, as shown in Figure 5.
In another embodiment of fuel lid 60, shown in figure 7,8, the passage 620 of fuel lid 60 can comprise the first larger through hole 623 of internal diameter and less the second through hole 624 of internal diameter.First through hole 623 is positioned at first end 621; Second through hole 624 is positioned at the second end 622, also optionally extends in the second end 622.
The junction of the second through hole 624 and the first through hole 623 forms a step surface 625, and the edge of shell fragment 63 compresses and fits on step surface 625.Second through hole 624 inside face also can be provided with for the seal groove 626 placing seal ring, be tightly connected with closeouts 50, prevents oil gas from leaking.
Further, shell fragment 63 is arranged in the first through hole 623 by rotating shaft 631, and elastic reset part 64 is set in rotating shaft 631, and its two elastic arm abuts shell fragment 63 and the first through hole 623 inwall respectively.Shell fragment 63 under external force (as backing down of fuel filler pipe 20) is opened to fuel tank internal direction, is automatically reset by the restoring force effect of elastic reset part 64 when external force disappears.For ensureing leak tightness, the surface of the surface that shell fragment 63 connects with step surface 625 and/or step surface 625 is provided with sealing layer, by tight seal between shell fragment 63 and step surface 625.Sealing layer can adopt the various leakproofing material such as rubber, silica gel to make.
The tubing and casing that adds of the present invention is arranged on rifle body 10 and forms overall nozzle; during oiling; closeouts 50 being aimed at is connected on fuel lid 60; protection sleeve 40 is aimed at and be pressed on fuel lid 60 with fuel lid 60 rotatable engagement; now telescopic sleeve pipe 30 compression enters in protection sleeve 40; fuel filler pipe 20 stretches out telescopic sleeve pipe 30 and backs down fuel lid 60, and the inserting paragraph 23 of fuel filler pipe 20 enters in fuel tank through closeouts 50, and fuel oil is entered in fuel tank by nozzle.In refueling process, the cooperation of protection sleeve 40 and fuel lid 60, by sealing gap between fuel filler pipe 20 and reservoir port, realizes refueling process airtight, avoids oil gas to leak.
After oiling completes, fuel oil stops conveying, and fuel filler pipe 20 oil discharge passage 24 is closed by the boiler check valve 27 on fuel filler pipe 20, prevents fuel drop out; Protection sleeve 40 rotate depart from fuel lid 60, nozzle can leave on fuel tank, telescopic sleeve pipe 30 stretch reset, by again wherein sheathed for the inserting paragraph 23 of fuel filler pipe 20, closeouts 50 by fuel filler pipe 20 shutoff in telescopic sleeve pipe 30.
To sum up, of the present inventionly add tubing and casing, for nozzle, can realize without fuel oil, oil and gas leakage in refueling process, more environmental protection, the combustion explosion hidden danger eliminated in refueling process, ensure that safety, convenient and practical, complete function.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification sheets of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. add a tubing and casing, for nozzle, it is characterized in that, comprise entrance point and be connected to the fuel filler pipe (20) supplying fuel oil to pass through on described fuel oil gun body (10) and be set in described fuel filler pipe (20) telescopic sleeve pipe outward (30);
In quiescence, the exit end end of described fuel filler pipe (20) is positioned at described telescopic sleeve pipe (30);
At fueling state, compress described telescopic sleeve pipe (30), the described exit end of described fuel filler pipe (20) stretches out in described telescopic sleeve pipe (30).
2. according to claim 1ly add tubing and casing, it is characterized in that, this adds tubing and casing and also comprises and be arranged on described telescopic sleeve pipe (30) away from the closeouts (50) on the end, one end of described rifle body (10);
In described quiescence, described closeouts (50) by described fuel filler pipe (20) shutoff in described telescopic sleeve pipe (30);
At described fueling state, the described exit end of described fuel filler pipe (20) backs down described closeouts (50) and stretches out described telescopic sleeve pipe (30).
3. according to claim 2ly add tubing and casing, it is characterized in that, described closeouts (50) comprises shutoff seat (51) and plugging sheet (52), the passage (53) that described shutoff seat (51) is provided with its two ends through, passes for described fuel filler pipe (20), described plugging sheet (52) is rotatably arranged in described passage (53) by elastic reset part, closes or open described passage (53); The end abutment of described telescopic sleeve pipe (30) is on described shutoff seat (51);
In described quiescence, the described exit end of described fuel filler pipe (20) is positioned at described passage (53), and is positioned at described plugging sheet (52) inner side, and described passage (53) is closed by described plugging sheet (52); At described fueling state, described fuel filler pipe (20) backs down described plugging sheet (52), make described plugging sheet (52) rotate open described passage (53), the described exit end of described fuel filler pipe (20) stretches out described shutoff seat (51) through described passage (53).
4. according to claim 2ly add tubing and casing, it is characterized in that, this adds tubing and casing and also comprises the first end cap (29) being set in described fuel filler pipe (20) entrance point periphery, the periphery of described first end cap (29) is provided with ring-shaped step (290), described telescopic sleeve pipe (30) towards one end end abutment of described rifle body (10) on described ring-shaped step (290);
Described first end cap (29) is provided with at least one through hole (291), and described through hole (291) radial direction extends through described first end cap (29), is communicated with described telescopic sleeve pipe (30) inner; Described through hole (291) is provided with the vacuum-breaking valve (292) closed or open described through hole (291), opens and open described through hole (291) when described telescopic sleeve pipe (30) internal negative pressure.
5. according to any one of claim 1-4, add tubing and casing, it is characterized in that, described telescopic sleeve pipe (30) is elastic metallic bellows.
6. according to any one of claim 1-4, add tubing and casing, it is characterized in that, the bendable tune (22) that described fuel filler pipe (20) comprises the linkage section (20) be connected with described rifle body (10), the inserting paragraph (21) inserting fuel tank and is connected between described linkage section (21) and inserting paragraph (23), described entrance point is positioned on described linkage section (21), and described exit end is positioned in described inserting paragraph (23).
7. according to claim 6ly add tubing and casing, it is characterized in that, be provided with in described fuel filler pipe (20) and axially extend and the oil discharge passage be isolated (24) and self-styled passage (25) along described fuel filler pipe (20); The through described fuel filler pipe (20) of described oil discharge passage (24); Described self-styled passage (25) ends in described inserting paragraph (23), and the sidewall of described inserting paragraph (23) is provided with the radial through pore self-sealing (26) to described self-styled passage (25).
8. according to claim 7ly add tubing and casing, it is characterized in that, the exit end place of described fuel filler pipe (20) is also provided with drip-proof boiler check valve (27);
The valve block (273) that described boiler check valve (27) is comprised pedestal (271), telescopic elastic component (272) and is connected to by described elastic component (272) on described pedestal (271); Described valve block (273) is arranged in described oil discharge passage (24), by described valve block (273) near or move away from described pedestal (271) direction and control the break-make of described oil discharge passage (24).
9. according to any one of claim 1-4, add tubing and casing, it is characterized in that, this adds tubing and casing and also comprises the protection sleeve (40) being set in described telescopic sleeve pipe (30) periphery, and the length of described telescopic sleeve pipe (30) and fuel filler pipe (20) is greater than the length of described protection sleeve (40);
In described quiescence, described protection sleeve (40) is stretched out in described telescopic sleeve pipe (30) one end;
At described fueling state, described telescopic sleeve pipe (30) compression enters in described protection sleeve (40), and the exit end of described fuel filler pipe (20) is stretched out in described telescopic sleeve pipe (30).
10. according to claim 9ly add tubing and casing, it is characterized in that, described protection sleeve (40) comprise body (41) and be arranged on described body (41) end with the attaching parts of fuel lid (60) rotary fastening;
Described attaching parts comprises axis and is connected to the cylindrical shell (42) on described body (41) end and is arranged on the upper bindiny mechanism fastened with described fuel lid (60) of described cylindrical shell (42);
The described bindiny mechanism shackle member (61) comprised on several and described fuel lid (60) is passed through to rotate the stopper (43) engaged, and described stopper (43) is arranged on the end face of described cylindrical shell (42) away from described body (41); Several described stopper (43) is spaced apart, and the gap-forming between described stopper (43) is passed for described shackle member (61) with the breach (44) entering described cylindrical shell (42); Or,
Described bindiny mechanism is included in the screw thread coordinated with described fuel lid (60) that described cylindrical shell (62) inwall is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610007974.1A CN105502271B (en) | 2016-01-07 | 2016-01-07 | Oiling sleeve pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610007974.1A CN105502271B (en) | 2016-01-07 | 2016-01-07 | Oiling sleeve pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105502271A true CN105502271A (en) | 2016-04-20 |
| CN105502271B CN105502271B (en) | 2017-10-20 |
Family
ID=55710660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610007974.1A Active CN105502271B (en) | 2016-01-07 | 2016-01-07 | Oiling sleeve pipe |
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| Country | Link |
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| CN (1) | CN105502271B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3995670A (en) * | 1974-05-09 | 1976-12-07 | Atlantic Richfield Company | Liquid-dispensing nozzle assembly |
| US4141393A (en) * | 1976-07-02 | 1979-02-27 | Texaco Inc. | Sealable fuel dispensing nozzle with automatic low-flow shut-off mechanism |
| JP2014058341A (en) * | 2012-09-19 | 2014-04-03 | Tatsuno Corp | Oil feed nozzle with vapor recovery function |
| CN203754406U (en) * | 2013-12-28 | 2014-08-06 | 杨江山 | Oil gas recovering self-closing fuel gun |
| CN204873813U (en) * | 2015-08-18 | 2015-12-16 | 胡添雄 | Vapor recovery system proclaims oneself nozzle structure |
| CN205313071U (en) * | 2016-01-07 | 2016-06-15 | 深圳市尚佳能源网络有限责任公司 | Refuel sleeve pipe |
-
2016
- 2016-01-07 CN CN201610007974.1A patent/CN105502271B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3995670A (en) * | 1974-05-09 | 1976-12-07 | Atlantic Richfield Company | Liquid-dispensing nozzle assembly |
| US4141393A (en) * | 1976-07-02 | 1979-02-27 | Texaco Inc. | Sealable fuel dispensing nozzle with automatic low-flow shut-off mechanism |
| JP2014058341A (en) * | 2012-09-19 | 2014-04-03 | Tatsuno Corp | Oil feed nozzle with vapor recovery function |
| CN203754406U (en) * | 2013-12-28 | 2014-08-06 | 杨江山 | Oil gas recovering self-closing fuel gun |
| CN204873813U (en) * | 2015-08-18 | 2015-12-16 | 胡添雄 | Vapor recovery system proclaims oneself nozzle structure |
| CN205313071U (en) * | 2016-01-07 | 2016-06-15 | 深圳市尚佳能源网络有限责任公司 | Refuel sleeve pipe |
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| Publication number | Publication date |
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| CN105502271B (en) | 2017-10-20 |
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