CN205313071U - Refuel sleeve pipe - Google Patents

Abstract

The utility model discloses a refuel sleeve pipe for the nozzle, it includes that inlet connection is in confession fuel on the nozzle rifle body passes through, and add oil pipe and the cover is established but add the outer telescopic tube of oil pipe, at quiescent condition, the exit end tip that adds oil pipe is located but in the telescopic tube, at the state of refueling, the compression but telescopic tube, add oil pipe the exit end certainly but stretch out in the telescopic tube. The utility model discloses a but telescopic tube will establish wherein with the oil pipe cover for add oil pipe not beyond the scope of the hourglass, but telescopic tube compression when refueling makes to stretch out to get into with oil pipe to add oil vessel, can prevent that fuel and oil gas from leaking.

Description

Add tubing and casing

Technical field

This utility model relates to a kind of nozzle component, particularly relates to and a kind of adds tubing and casing for nozzle.

Background technology

At present, it is all adopt nozzle that vehicle is refueled, and injects oil in the fuel tank on vehicle. Generally, in refueling process, being in open state between oil filling pipe and fuel tank, oil gas easily leaks, and causes potential safety hazard. It 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 waste.

Although more existing nozzle gun barrels can realize self-sealing function, and the Self-sealing valve realizing self-sealing function is arranged in the gun body of nozzle, be positioned at after Self-sealing valve the trapped fuel of gun barrel still can water clock out, it is impossible to thoroughly realize antidrip.

Utility model content

The technical problems to be solved in the utility model is in that, it is provided that a kind of can be used for nozzle add tubing and casing.

This utility model solves its technical problem and be the technical scheme is that offer one adds tubing and casing, for nozzle, it is connected to the oil filling pipe supplying fuel oil to pass through on described fuel oil gun body including entrance point and is set in the telescopic sleeve pipe outside described oil filling pipe;

In resting state, the port of export end of described oil filling pipe is positioned at described telescopic sleeve pipe;

At fueling state, compressing described telescopic sleeve pipe, the described port of export of described oil filling pipe stretches out in described telescopic sleeve pipe.

Preferably, this adds tubing and casing and also includes being arranged on described telescopic sleeve pipe away from the closeouts on the end, one end of described gun body;

In described resting state, described oil filling pipe is blocked in described telescopic sleeve pipe by described closeouts;

At described fueling state, the described port of export of described oil filling pipe backs down described closeouts and stretches out described telescopic sleeve pipe.

Preferably, described closeouts includes closure seat and plugging sheet, and described closure seat is provided with through its two ends, supplies the passage of described oil filling pipe traverse, and described plugging sheet is rotatably provided in described passage by elastic reset part, closes or open described passage; The end abutment of described telescopic sleeve pipe is on described closure seat;

In described resting state, the described port of export of described oil filling 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 oil filling pipe backs down described plugging sheet, makes described plugging sheet rotate open described passage, and the described port of export of described oil filling pipe stretches out described closure seat through described passage.

Preferably, this adds tubing and casing and also includes being set in the first end cap that described oil filling pipe entrance point is peripheral, 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 gun body on described ring-shaped step;

Described first end cap is provided with at least one through hole, and described through hole radially extends through described first end cap, connects inside described telescopic sleeve pipe; Described through hole is provided with the vacuum-breaking valve closed or open described through hole, opens when described telescopic sleeve pipe internal negative pressure and open described through hole.

Preferably, described telescopic sleeve pipe is elastic metallic corrugated tube.

Preferably, described oil filling pipe includes the linkage section being connected with described gun body, the inserting paragraph inserting fuel tank and the bendable tune being connected between described linkage section and inserting paragraph, described entrance point is positioned on described linkage section, and the described port of export is positioned in described inserting paragraph.

Preferably, oil discharge passage that is axially extending along described oil filling pipe and that be isolated and self-styled passage it are provided with in described oil filling pipe; The through described oil filling 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 pore self-sealing of radially through to described self-styled passage.

Preferably, the port of export place of described oil filling pipe is additionally provided with drip-proof check-valves;

Described check-valves includes 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, controls the break-make of described oil discharge passage by described valve block to moving closer or far from described pedestal direction.

Preferably, this adds tubing and casing and also includes being set in the protection sleeve pipe that described telescopic sleeve pipe is peripheral, and the length of described telescopic sleeve pipe and oil filling pipe is more than the length of described protection sleeve pipe;

In described resting state, described protection sleeve pipe is stretched out in described telescopic sleeve pipe one end;

At described fueling state, the compression of described telescopic sleeve pipe enters in described protection sleeve pipe, makes the port of export of described oil filling pipe stretch out in described telescopic sleeve pipe.

Preferably, described protection sleeve pipe includes body and is arranged on described body end with fuel tank cap rotary fastening connector;

Described connector includes the cylinder that is axially connected on described body end and is arranged on described cylinder the bindiny mechanism fastened with described fuel tank cap;

Described bindiny mechanism includes the shackle member in several and described fuel tank cap by rotating the stopper engaged, and described stopper is arranged on the described cylinder end face away from described body; Several described stoppers are spaced apart, and the interval between described stopper forms the breach supplying the traverse of described shackle member to enter described cylinder; Or,

Described bindiny mechanism includes the screw thread coordinated with described fuel tank cap arranged at described cylinder inboard wall.

The beneficial effects of the utility model: by telescopic sleeve pipe by sheathed for oil filling pipe wherein so that oil filling pipe does not leak outside; When refueling, telescopic sleeve pipe compression, makes oil filling pipe protrude into and adds oil vessel, can prevent fuel oil and oil and gas leakage.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:

Fig. 1 be this utility model one embodiment add tubing and casing structural representation on nozzle;

Fig. 2 is the profile of nozzle shown in Fig. 1;

Fig. 3 is structural representation when being in fueling state of the nozzle shown in Fig. 2;

Fig. 4 is the structural representation of oil filling pipe in Fig. 2;

Fig. 5 is the profile of telescopic sleeve pipe in Fig. 2;

Fig. 6 is the structural representation protecting sleeve pipe in Fig. 2;

Fig. 7 is the perspective view of fuel tank cap in Fig. 3;

Fig. 8 is the cross-sectional view of another embodiment of fuel tank cap in Fig. 3.

Detailed description of the invention

In order to technical characteristic of the present utility model, purpose and effect are more clearly understood from, now comparison accompanying drawing describes detailed description of the invention of the present utility model in detail.

As shown in Figure 1, 2, this utility model one embodiment add tubing and casing, for nozzle, be assemblied in the gun body 10 of nozzle. This adds tubing and casing and includes oil filling pipe 20 and the telescopic sleeve pipe 30 being set in outside oil filling pipe 20, and the entrance point of oil filling pipe 20 is connected in gun body 10, passes through for fuel oil.

As in figure 2 it is shown, in resting state (non-refuelling), the port of export end of oil filling pipe 20 is positioned at telescopic sleeve pipe 30; As it is shown on figure 3, at fueling state, compress telescopic sleeve pipe 30, the port of export of oil filling pipe 20 stretches out in telescopic sleeve pipe 30.

Wherein, oil filling pipe 20 can be the metal tube of solid shape, it is possible to for flexible metal tube. With reference to Fig. 4, in the present embodiment, oil filling pipe 20 is flexible oil filling pipe, it linkage section 21 including being connected with gun body 10, insert the inserting paragraph 23 that fuel tank etc. adds oil vessel and the bendable tune 22 being connected between linkage section 21 and inserting paragraph 23, the entrance point of oil filling pipe 20 is positioned on linkage section 21, and the port of export is positioned in inserting paragraph 23. The bending of whole oil filling pipe 20 is realized by the bending of bendable tune 22, the direction of the inserting paragraph 23 of scalable oil filling pipe 20, facilitate insertion to add oil vessel and refuel.

Preferably, the bendable tune 23 of oil filling pipe 20 is wavy metal pipeline section.

Oil discharge passage 24 and self-styled passage 25, oil discharge passage 24 and self-styled passage 25 it is provided with axially extending along oil filling pipe 20 and be isolated in oil filling pipe 20; Oil discharge passage 24 passes through to add oil vessel to enter for fuel oil. Wherein, the through oil filling pipe 20 of oil discharge passage 24, namely extend to inserting paragraph 23, the entrance point of through oil filling pipe 20 and the port of export from linkage section 21. Self-styled passage 25 ends in inserting paragraph 23, runs through the entrance point of oil filling pipe 20, and not through the port of export of oil filling pipe 20. Further, the sidewall of inserting paragraph 23 is provided with the pore self-sealing 26 of radially through to self-styled passage 25, and when refueling, pore self-sealing 26 can connect 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 port of export place of oil filling pipe 20 is additionally provided with drip-proof check-valves 27. This check-valves 27 is positioned at the outside of self-styled passage 25 on oil filling pipe 20. Check-valves 27 also avoids nozzle frequently to jump rifle.

As a kind of embodiment, check-valves 27 includes pedestal 271, telescopic elastic component 272 and the valve block 273 being connected on pedestal 271 by elastic component 272. Valve block 273 is arranged in oil discharge passage 24, controls the break-make of oil discharge passage 24 by valve block 273 to moving closer or far from pedestal 271 direction. Check-valves 27 can pass through pedestal 271 and be arranged on the port of export of oil filling pipe 20. The periphery of pedestal 271 can be provided with screw thread and coordinate with the inner circumferential of inserting paragraph 23, or the port of export being provided with step and inserting paragraph 23 fastens.

The end face relative with valve block 273 of pedestal 271 is additionally provided with through hole 274, is connected with oil discharge passage 214 when oil discharge passage 214 is open.

Further, oil discharge passage 24 is provided with sealed step 28; Valve block 273 compresses sealed step 28 under the pushing effect of elastic component 272, closes oil discharge passage 24.

This sealed step 28 is the ring-shaped step being arranged 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, it is achieved the closing of oil discharge passage 24.

During oiling, in conjunction with Fig. 2,4, fuel oil flow to oil filling pipe 20 from gun body 10, it flow to valve block 273 at oil discharge passage 24, push valve block 273, making valve block 273 move to close pedestal 271 direction and leave sealed step 28, open oil discharge passage 24, fuel oil is flowed out by through hole 274 on oil discharge passage 24 and pedestal 271. When have fuel flow returns pass through through hole 274 flow to valve block 273 time, valve block 273 is pressed in sealed step 28 by pushing, close oil discharge passage 24, it is prevented that fuel oil enter oil discharge passage 24. When non-refuelling, valve block 273 is pushed by elastic component 272 restoring force and is pressed in sealed step 28, closes oil discharge passage 24, it is prevented that oil filling pipe 20 oil dripping, thus playing drip-proof effect.

Telescopic sleeve pipe 30 is preferably elastic metallic corrugated tube, is set in outside oil filling pipe 20 so that oil filling pipe 20 does not expose, and protects oil filling pipe 20.

Further, as shown in Fig. 2,3,5, this adds tubing and casing and also includes being arranged on telescopic sleeve pipe 30 away from the closeouts 50 on the end, one end of gun body 10. In resting state, oil filling pipe 20 is blocked in telescopic sleeve pipe 30 by closeouts 50; At fueling state, the port of export of oil filling pipe 20 backs down closeouts 50 and stretches out telescopic sleeve pipe 30.

Closeouts 50 includes closure seat 51 and plugging sheet 52, and closure seat 51 is provided with through its two ends, supplies the passage 53 of oil filling pipe 20 traverse, and plugging sheet 52 is rotatably provided in passage 53 by elastic reset part, closes or open channel 53; The end abutment of telescopic sleeve pipe 30 is on closure seat 51. The periphery of closure seat 51 can be provided with step and coordinate with the end of telescopic sleeve pipe 30.

In resting state, the port of export of oil filling 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, oil filling pipe 20 backs down plugging sheet 52, makes plugging sheet 52 rotate open channel 53, and the port of export of oil filling pipe 20 stretches out closure seat 51 through passage 53.

Further, this adds tubing and casing and also includes being set in the first end cap 29 that oil filling pipe 20 entrance point is peripheral, the periphery of the first end cap 29 is provided with ring-shaped step 290, one end of telescopic sleeve pipe 30 on ring-shaped step 290, is fixed on oil filling pipe 20 by telescopic sleeve pipe 30 towards one end end abutment of gun body 10. Telescopic sleeve pipe 30 is also closed by the first end cap 29, it is to avoid dust etc. enter, it is possible to avoid oil gas to leak.

One end of first end cap 29 can be close-coupled in gun body 10, and telescopic sleeve pipe 30 is from the other end its periphery sheathed of the first end cap 29 and is connected on ring-shaped step 290. It is formed with gap so that the space between telescopic sleeve pipe 30 and oil filling pipe 20 is by the intracavity inter-connection in gap with gun body 10 between periphery and first end cap 29 of oil filling pipe 20; 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 oil filling pipe 20.

Producing negative pressure inside telescopic sleeve pipe 30 in order to avoid vacuum pump power is excessive excessive, the first end cap 29 is provided with at least one through hole 291, and through hole 291 radially extends through first end cap 29, and connection telescopic sleeve pipe 30 is internal.Through hole 291 is provided with the vacuum-breaking valve 292 closed or open through hole 291, opens when telescopic sleeve pipe 30 internal negative pressure and open through hole 292. Vacuum-breaking valve 292 includes the components such as valve seat, spring, steel ball, and when telescopic sleeve pipe 30 internal negative pressure, steel ball moves inside valve seat at valve seat opening part, the passage on open valve seat, thus open through hole 291.

Further, this adds tubing and casing and also includes being set in the protection sleeve pipe 40 of telescopic sleeve pipe 30 periphery, and the length of telescopic sleeve pipe 30 and oil filling pipe 20 is more than the length of protection sleeve pipe 40. In resting state, protection sleeve pipe 40 is stretched out in telescopic sleeve pipe 30 one end; At fueling state, telescopic sleeve pipe 30 compression enters in protection sleeve pipe 40, makes the port of export of oil filling pipe 20 stretch out in telescopic sleeve pipe 30. Telescopic sleeve pipe 30 and oil filling pipe 20 are played further protective effect by protection sleeve pipe 40.

Again as Figure 1-3, protection sleeve pipe 40 is metal tube, and it can include being set in the body 41 of telescopic sleeve pipe 30 periphery and being arranged on the connector of body 41 end, and connector is used for and fuel tank cap 60 rotary fastening. By protecting sleeve pipe 40 and fuel tank cap 60 rotatable engagement, nozzle can be tightly connected with the oil filler added on oil vessel, it is achieved the sealing in refueling process, it is prevented that oil-gas diffusion in air, safety and environmental protection.

Connector can include the cylinder 42 that is axially connected on body 41 end and the bindiny mechanism being arranged on cylinder 42 to fasten with fuel tank cap 60. Cylinder 42 is internal with body 41 to be connected.

Connector and body 41 are structure as a whole, one-body molded when making. In connector, the internal diameter of cylinder 42 is more than the internal diameter of body 41, thus cylinder 42 projects radially outwardly on body 41, forms cover body structure and coordinates with fuel tank cap 60.

In the present embodiment, bindiny mechanism includes the stopper 43 that several and in fuel tank cap 60 shackle member 61 is engaged by rotation, and stopper 43 is arranged on the cylinder 42 end face away from body 41, and extends to the central axial direction of cylinder 42. Several stoppers 43 are spaced apart, and the interval between stopper 43 forms the breach 44 supplying shackle member 61 traverse to enter cylinder 42. Several stoppers 43 are symmetrically distributed on the end face of cylinder 42 centered by the axis of cylinder 42.

As a kind of embodiment, as shown in Figure 6, stopper 43 includes the first catch 431 on cylinder 42 end face to the bending extension of cylinder 42 central axial direction. The rotatable inner side being fastened on the first catch 431 of the shackle member 61 of fuel tank cap 60. Stopper 43 also includes the second catch 432 extended from the free end of the first catch 431 to the bending of body 41 direction, the length of the second catch 432 is less than the length of cylinder 42, thus leaving interval between the second catch 432 and cylinder 42 other end, engage wherein for shackle member 61.

Protection sleeve pipe 40 shown in Fig. 6, bindiny mechanism includes three along the evenly spaced stopper 43 of cylinder 42 circumferencial direction. Shackle member 61 in fuel tank cap 60 and stopper 43, breach 44 quantity are consistent, and each shackle member 61 is respectively aligned to a breach 44, after entering cylinder 41 from breach 44, coordinates inside stopper 43, it is achieved rotary fastening after rotating to an angle. Shackle member 61 can be overhead structure, is fastened between the second catch 432 and the first catch 431.

Cylinder 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 cylinder 42 and body 41. ?he Wei Kui ? 5 that boils is relative with stopper 43, lays respectively at the two ends place of cylinder 42.

In other embodiments, bindiny mechanism may also comprise the screw thread coordinated with fuel tank cap 60 arranged at cylinder 42 inwall, thus connector is by screw connection manner and fuel tank cap 60 rotatable engagement.

After protection sleeve pipe 40 with fuel tank cap 60 rotary fastening, closeouts 50 is also closely connected in fuel tank cap 60, makes to seal between oil filling pipe 20 and fuel tank cap 60, it is prevented that oil gas leaks.

It addition, in the periphery of telescopic sleeve pipe 30 also can sheathed second end cap, protection sleeve pipe 40 can be connected on the second end cap away from the other end of fuel tank cap 60 so that protection sleeve pipe 40 is internal to be closed. Further, in order to prevent producing negative pressure in protection sleeve pipe 40, the second end cap can arrange channel connection internal to protection sleeve pipe 40, passage arranges vacuum-breaking valve. When protecting hypotony in sleeve pipe 40, the steel ball of this vacuum-breaking valve is the passage on mobile open and protection sleeve pipe 40 in valve seat, makes protection sleeve pipe 40 inside connect extraneous air.

This adds tubing and casing and can include or not include fuel tank cap 60. Shackle member 61 in fuel tank cap 60 can be barb-like.

With reference to Fig. 3 and Fig. 7, with the fuel tank cap 60 of protection sleeve pipe 40 rotatable engagement, it may include having the cylinder base 62 of 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 tank cap 60 is assemblied on the oil filler adding oil vessel. Fuel tank cap 60 does not need to take off when refueling, with protection sleeve pipe 40 rotatable engagement after, telescopic sleeve pipe 40 compression enters protection sleeve pipe 40, and oil filling pipe 20 stretches out protection sleeve pipe 40 can back down shell fragment 63, is entered by the passage 620 of fuel tank cap 60 and adds in oil vessel. After oiling completes, protection sleeve pipe 40 rotationally disengages with fuel tank cap 60, and oil filling pipe 20 leaves and adds oil vessel, and telescopic sleeve pipe 30 telescopic sleeve pipe 30 stretches and restores to oil filling pipe 20 periphery, and the shell fragment 63 of fuel tank cap 60 resets and closed by its passage 620.

Specifically, shell fragment 63 is rotatably connected on the inwall of cylinder base 62 by elastic reset part (such as torsion spring etc.), rotates to fuel tank internal direction to open passage 620 under external force. Cylinder base 62 can include the first end 621 of being connected with fuel tank and the second end 622 with protection sleeve pipe 10 rotatable engagement. First end 621 of cylinder base 62 is correspondingly arranged with the size of reservoir port, and the periphery of this first end 621 or the junction of the first end 621 and the second end 622 also can be provided with sealed step or sealing 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 be spirally connected with reservoir port.

In one embodiment of fuel tank cap 60, as it is shown on figure 3, passage 620 inwall of corresponding second end 622 is provided with step surface 6201, closure seat 51 end of closeouts 50 can closely be connected on this step surface 6201; Sealing ring be may further be provided between closure seat 51 end and step surface 6201 to seal, for instance, seal groove 510 is set in closure periphery, seat 51 end, is used for placing sealing ring, as shown in Figure 5.

In another embodiment of fuel tank cap 60, with reference to Fig. 7, shown in 8, the passage 620 of fuel tank cap 60 can include the first bigger through hole 623 of internal diameter and less the second through hole 624 of internal diameter. First through hole 623 is positioned at the 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 inner surface is also provided with the seal groove 626 for placing sealing ring and closeouts 50 is tightly connected, it is prevented that oil gas leaks.

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 is opened to fuel tank internal direction (such as backing down of oil filling pipe 20) under external force, is automatically reset by the restoring force effect of elastic reset part 64 when external force disappears. For ensureing sealing, surface and/or the surface of step surface 625 that shell fragment 63 connects with step surface 625 are provided with sealant, by tight seal between shell fragment 63 and step surface 625. Sealant can adopt the various encapsulant such as rubber, silica gel to make.

The tubing and casing that adds of the present utility model is arranged in gun body 10 and constitutes overall nozzle; during oiling; closeouts 50 alignment is connected in fuel tank cap 60; protection sleeve pipe 40 is directed at and is pressed in fuel tank cap 60 and fuel tank cap 60 rotatable engagement; now telescopic sleeve pipe 30 compression enters in protection sleeve pipe 40; oil filling pipe 20 then stretches out telescopic sleeve pipe 30 and backs down fuel tank cap 60, and the inserting paragraph 23 of oil filling 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 pipe 40 and fuel tank cap 60 is by sealing gap between oil filling pipe 20 and reservoir port, it is achieved refueling process is airtight, it is to avoid oil gas leaks.

After oiling completes, fuel oil stops conveying, and oil filling pipe 20 oil discharge passage 24 is closed by the check-valves 27 on oil filling pipe 20, it is prevented that fuel drop out; Protection sleeve pipe 40 rotationally disengage fuel tank cap 60, nozzle can leave on fuel tank, telescopic sleeve pipe 30 stretch reset, by the inserting paragraph 23 of oil filling pipe 20 again sheathed wherein, oil filling pipe 20 is blocked in telescopic sleeve pipe 30 by closeouts 50.

To sum up, of the present utility model add tubing and casing, for nozzle, it may be achieved without fuel oil, oil and gas leakage in refueling process, more environmental protection, the combustion explosion hidden danger eliminated in refueling process, it is ensured that safety, convenient and practical, complete function.

The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing this utility model description and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in scope of patent protection of the present utility model.

Claims (10)

1. add a tubing and casing, for nozzle, it is characterised in that include the oil filling pipe (20) passed through for fuel oil that entrance point is connected on described fuel oil gun body (10) and be set in described oil filling pipe (20) telescopic sleeve pipe (30) outward;

In resting state, the port of export end of described oil filling pipe (20) is positioned at described telescopic sleeve pipe (30);

At fueling state, compressing described telescopic sleeve pipe (30), the described port of export of described oil filling pipe (20) stretches out in described telescopic sleeve pipe (30).

2. according to claim 1 add tubing and casing, it is characterised in that this adds tubing and casing and also includes being arranged on described telescopic sleeve pipe (30) away from the closeouts (50) on the end, one end of described gun body (10);

In described resting state, described oil filling pipe (20) is blocked in described telescopic sleeve pipe (30) by described closeouts (50);

At described fueling state, the described port of export of described oil filling pipe (20) backs down described closeouts (50) and stretches out described telescopic sleeve pipe (30).

3. according to claim 2 add tubing and casing, it is characterized in that, described closeouts (50) includes closure seat (51) and plugging sheet (52), described closure seat (51) is provided with through its two ends, supplies the passage (53) of described oil filling pipe (20) traverse, described plugging sheet (52) is rotatably provided 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 closure seat (51);

In described resting state, the described port of export of described oil filling 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 oil filling pipe (20) backs down described plugging sheet (52), making described plugging sheet (52) rotate open described passage (53), the described port of export of described oil filling pipe (20) stretches out described closure seat (51) through described passage (53).

4. according to claim 2 add tubing and casing, it is characterized in that, this adds tubing and casing and also includes being set in the first end cap (29) that described oil filling pipe (20) entrance point is peripheral, 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 gun 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) radially extends through described first end cap (29), connects described telescopic sleeve pipe (30) internal; Described through hole (291) is provided with the vacuum-breaking valve (292) closed or open described through hole (291), opens when described telescopic sleeve pipe (30) internal negative pressure and open described through hole (291).

5. according to any one of claim 1-4, add tubing and casing, it is characterised in that described telescopic sleeve pipe (30) is elastic metallic corrugated tube.

6. according to any one of claim 1-4, add tubing and casing, it is characterized in that, described oil filling pipe (20) includes the linkage section (21) being connected with described gun body (10), the inserting paragraph (23) inserting fuel tank and the bendable tune (22) being connected between described linkage section (21) and inserting paragraph (23), described entrance point is positioned on described linkage section (21), and the described port of export is positioned in described inserting paragraph (23).

7. according to claim 6 add tubing and casing, it is characterised in that in described oil filling pipe (20), be provided with and that be isolated oil discharge passage (24) axially extending along described oil filling pipe (20) and self-styled passage (25); The through described oil filling 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 pore self-sealing (26) of radially through to described self-styled passage (25).

8. according to claim 7 add tubing and casing, it is characterised in that the port of export place of described oil filling pipe (20) is additionally provided with drip-proof check-valves (27);

Described check-valves (27) includes pedestal (271), telescopic elastic component (272) and the valve block (273) being connected on described pedestal (271) by described elastic component (272); Described valve block (273) is arranged in described oil discharge passage (24), controls the break-make of described oil discharge passage (24) by described valve block (273) to moving closer or far from described pedestal (271) direction.

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 includes being set in the protection sleeve pipe (40) that described telescopic sleeve pipe (30) is peripheral, and the length of described telescopic sleeve pipe (30) and oil filling pipe (20) is more than the length of described protection sleeve pipe (40);

In described resting state, described protection sleeve pipe (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 pipe (40), makes the port of export of described oil filling pipe (20) stretch out in described telescopic sleeve pipe (30).

10. according to claim 9 add tubing and casing, it is characterised in that described protection sleeve pipe (40) includes body (41) and is arranged on described body (41) end with fuel tank cap (60) rotary fastening connector;

Cylinder (42) that described connector includes axially being connected on described body (41) end and be arranged on the upper bindiny mechanism fastened with described fuel tank cap (60) of described cylinder (42);

Described bindiny mechanism includes the shackle member (61) on several and described fuel tank cap (60) by rotating the stopper (43) engaged, and described stopper (43) is arranged on the described cylinder (42) end face away from described body (41); Several described stoppers (43) are spaced apart, and the interval between described stopper (43) forms the breach (44) supplying described shackle member (61) traverse to enter described cylinder (42); Or,

Described bindiny mechanism includes the screw thread coordinated with described fuel tank cap (60) arranged at described cylinder (62) inwall.