CN102050014B

CN102050014B - Oil filling pipe assembly for automotive oil tank

Info

Publication number: CN102050014B
Application number: CN 201010605485
Authority: CN
Inventors: 孙玉凯; 陈文都
Original assignee: Dongfeng Motor Corp
Current assignee: Dongfeng Motor Corp
Priority date: 2010-12-27
Filing date: 2010-12-27
Publication date: 2013-04-17
Anticipated expiration: 2030-12-27
Also published as: CN102050014A

Abstract

The invention discloses an oil filling pipe assembly for an automotive oil tank, comprising an oil guiding pipe. An oil filling pipe nozzle conduit of an oil filling gun is arranged at the front end of the oil guiding pipe and connected with an oil filling pipe cap, an anti-spattering device is arranged at one end in the oil guiding pipe, a one-way valve is arranged at the other end in the oil guiding pipe, the anti-spattering device comprises an elastomer arranged at the front end of the oil filling pipe, the elastomer is provided with a guiding hole, and an oil filling pipe nozzle of the oil filling gun, which is arranged in the guiding hole, is inserted in a matched bushing. Under the action of injection pressure, fuel colliding with the wall of the oil filling pipe of the oil tank can not spatter off; meanwhile, the oil guiding pipe guides the oil filling pipe of the oil filling gun; and the oil filling pipe nozzle is convenient to insert under the action of the elastomer. Meanwhile, the one-way valve is arranged in the oil filling pipe to effectively avoid the problem of reverse fuel spattering in the fuel filling process, and the one-way valve has simple structure and can be directly connected to the oil filling pipe to solve the problem that the one-way valve cannot be arranged in an oil inlet of the oil tank. The oil filling pipe assembly has the simple structure and is convenient for mounting.

Description

The feeding tube fuel tank of automobile assembly

Technical field

The invention belongs to automobile fuel up device, be specifically related to a kind of fuel filler pipe that is connected with automotive oil tank.

Background technology

The fuel filler pipe that existing automotive oil tank connects is an oil guide pipe, and its front end is provided with the filler neck conduit of nozzle, and conduit is connected with filling pipe cap.This oil guide pipe is in fuel up, the filler neck of oil gun is inserted in the motor vehicle oil tank oil guide pipe, because filler neck and the gap between the fuel tank oil guide pipe of oil gun are larger, under the pressure-acting of fuel oil when filling, the collision of tank filler tube tube wall, tend to occur the phenomenon that fuel oil spills, particularly when filling diesel oil, this phenomenon is more outstanding.So that oil gas VOC (volatile organic matter) also can emit, to environment.Simultaneously, the effect of regurgitating of fuel oil and the fuel-steam in the fuel tank enter atmosphere by adding oiling tube during oiling, and regurgitating of fuel oil can cause leaking of fuel oil, brings potential safety hazard.

Summary of the invention

The object of the present invention is to provide a kind of feeding tube fuel tank of automobile assembly, to address the above problem.

Technical scheme of the present invention is: the feeding tube fuel tank of automobile assembly, and it comprises oil guide pipe, and the oil guide pipe front end is provided with the filler neck conduit of nozzle, and conduit is connected with filling pipe cap, and an end is provided with the anti-outer device that spatters in the oil guide pipe, and the other end is provided with check valve in the oil guide pipe; The described anti-outer device that spatters comprises the elastic body that arranges in the fuel filler pipe front end, and elastic body is provided with guide hole, and the fuel filler pipe mouth of pipe that is provided with nozzle in the guide hole inserts and cooperates sleeve pipe.

Described elastic body back segment is frustum.

Described sleeve pipe front end is provided with the protection flange, and the protection flange is connected with oil proof rubber elastic body end face.

Described check valve comprises the diversion shell that is located in the oil guide pipe pipeline, and an end of diversion shell is provided with valve seat, and valve seat is provided with orienting sleeve, and pilot bar passes orienting sleeve, the end of pilot bar be provided with can with the valve plate of valve seat one-way sealing, pilot bar is provided with retracing spring.

Described valve seat is valve cup ring, and orienting sleeve is coaxial with valve cup ring, is provided with radial strut between valve cup ring and the orienting sleeve.

Described pilot bar is provided with the spring positive stop lug boss, and retracing spring is enclosed within on the pilot bar, the spring positive stop lug boss end contact on retracing spring one end and the pilot bar, and the retracing spring other end contacts with the end face inwall of orienting sleeve.

Described diversion shell is tubulose, and valve cup ring is connected sealing with the end face of diversion shell, and the diversion shell other end is provided with block, and block is relative with the pilot bar end face.

Described block is made of the radially pin that the diversion shell other end is provided with.

Described radially pin and radial strut are located in the same axial plane.

Fuel filler pipe of the present invention is connected with fuel tank, the anti-outer fuel filler pipe mouth of pipe that spatters in the device of oil guide pipe front end inserts and cooperates sleeve pipe to match with the fuel filler pipe mouth of pipe of nozzle, the external diameter that is the fuel filler pipe mouth of pipe cooperates the internal diameter of sleeve pipe little 1～2 millimeter than inserting with the fuel filler pipe mouth of pipe, sleeve pipe encases the fuel filler pipe mouth of pipe, under the pressure-acting of fuel oil when filling, outer spilling do not understood in the collision of tank filler tube tube wall, and conduit is the fuel filler pipe realization guiding of nozzle simultaneously; The insertion of the fuel filler pipe mouth of pipe is convenient in elastomeric effect.Simultaneously, this check valve is located in the fuel filler pipe, can avoid the problem that the fuel oil of fuel tank is regurgitated in the refueling process by actv., and it is simple in structure, and it can directly be connected in the fuel filler pipe, has solved the problem that the fuel tank oil inlet can't be arranged check valve.This apparatus structure is simple, and is easy for installation.

Description of drawings

Fig. 1 feeding tube fuel tank of automobile assembly schematic diagram.

Fig. 2 filling pipe cap and the anti-outer cutaway view that spatters device.

The cutaway view that Fig. 3 check valve is installed.

The anti-outer apparatus structure schematic diagram that spatters of Fig. 4.

Fig. 5 one-way valve structures schematic diagram.

The elevational schematic view of Fig. 6 diversion shell.

Fig. 7 valve seat and orienting sleeve outside drawing.

Schematic diagram is looked on the right side of Fig. 8 Fig. 7 valve seat.

The specific embodiment

As shown in Figure 1, 2, 3, the front end of oil guide pipe 10 is provided with the filler neck conduit 5 of nozzle, and conduit 5 is connected with filling pipe cap 7, and an end is provided with the anti-outer device 11 that spatters in the oil guide pipe of oil guide pipe 10, and the other end is provided with check valve 100 in the oil guide pipe.

As shown in Figure 4, spatter device 11 outside anti-and comprise the oil proof rubber elastic body 2 that is connected and fixed with oil guide pipe 10 outer casing inner walls, oil proof rubber elastic body 2 leading portions are cylindrical, back segment is taper type, oil proof rubber elastic body 2 is provided with guide hole 3, the fuel filler pipe mouth of pipe that guide hole 3 interior fluidisations are connected with nozzle inserts cooperation sleeve pipe 4, large 1～2 millimeter than the external diameter of the fuel filler pipe mouth of pipe of sleeve pipe 4 internal diameter.Sleeve pipe 4 front ends are provided with protection flange 6, and protection flange 6 is connected with oil proof rubber elastic body 2 end faces.

Check valve 100 as shown in Figure 5, the diversion shell 101 that is connected with pipeline is tubuloses, can directly be set in the pipeline.One end of diversion shell 101 is provided with radially pin 102, and radially pin 102 is " ten " font (as shown in Figure 6).The other end of diversion shell 101 is provided with valve cup ring 103, valve cup ring 103 is connected sealing with diversion shell 101, valve cup ring 103 can be tightly connected (such as Fig. 5) with diversion shell 101 outer faces, also can be fastened on diversion shell 101 inner-walls of duct (diagram is not arranged).

Valve cup ring 103 is provided with radial strut 104, and radial strut 104 is " ten " font (as shown in Figure 8), radial strut 104 and radially pin 102 corresponding settings, and namely radially pin and radial strut are located in the same axial plane.Radially pin and radial strut horizontal in the present embodiment are located in the same level axial plane, and radially pin and radial strut are located in the same vertical axial plane longitudinally.

Shown in Fig. 5,6,7, radial strut 104 middle parts of " ten " font are provided with orienting sleeve 105, and pilot bar 106 passes orienting sleeve 105, the end of pilot bar 106 be provided with can with the valve plate 107 of valve cup ring one-way sealing; Pilot bar 106 is provided with spring positive stop lug boss 108, and the spring positive stop lug boss 108 in the present embodiment is that the set collar that connects on the pilot bar 106 consists of.Retracing spring 109 is enclosed within on the pilot bar 106, spring positive stop lug boss 108 end contacts on retracing spring one end and the pilot bar, and the retracing spring other end contacts with the end face inwall 110 of orienting sleeve.

Radially pin 102 is relative with pilot bar 106, and the block that the middle part 111 of the radially pin 102 of " ten " font forms in the present embodiment is relative with pilot bar 106, when refueling, avoids ducted fuel oil to the impact of pilot bar 106 like this.

When this valve is in when being subject to liquid fuel in the fuel oil filling system and impacting, spring can compress because of being subject to impacting, valve plate 107 unlatchings, and fuel oil can enter fuel tank by the gap between valve plate 107 and the valve cup ring 103 by diversion shell 101 runners smoothly; When refueling end, along with reducing of input pressure, the amount of compression of spring reduces gradually, returns to drift, and this moment, the fuel tank refueling process finished, and valve plate 107 is closed.In the process of filling, do not have liquid fuel reverse outflow in the check valve.Above-mentioned check valve and anti-outer spatter embedded being installed on of device and lead in the oiling tube is located at and has solved check valve volume and anti-outer Layout Problem of spattering device in the oil guide pipe.

Claims

1. An automobile fuel tank filler pipe assembly, which comprises a fuel guide pipe, the front end of the fuel guide pipe is provided with a refueling nozzle conduit of a refueling gun, and the conduit is connected with a refueling pipe cover, and it is characterized in that one end of the fuel guide pipe is provided with an anti-splash device, The other end of the oil guide pipe is provided with a one-way valve; the anti-splash device includes an oil-resistant rubber elastic body arranged in the front end of the oil-refueling pipe, and the oil-resistant rubber elastic body is provided with a guide hole, and the nozzle of the refueling pipe of the refueling gun is arranged in the guide hole Insert the matching sleeve; the front end of the sleeve is provided with a protective flange, and the protective flange is connected with the end surface of the oil-resistant rubber elastic body.

2. The automobile fuel tank filling pipe assembly according to claim 1, wherein the rear section of the elastic body is a truncated cone.

3. The automobile fuel tank filling pipe assembly as claimed in claim 1, wherein said one-way valve comprises a diversion casing arranged in the oil guide pipe, and one end of the diversion casing is provided with a valve seat, and on the valve seat A guide sleeve is provided, and the guide rod passes through the guide sleeve. The end of the guide rod is provided with a valve plate capable of one-way sealing with the valve seat, and a return spring is provided on the guide rod.

4. The automobile fuel tank filling pipe assembly as claimed in claim 3, wherein the valve seat is a valve seat ring, the guide sleeve is coaxial with the valve seat ring, and a radial support rod is arranged between the valve seat ring and the guide sleeve .

5. The automobile fuel tank filling pipe assembly as claimed in claim 3, characterized in that the guide rod is provided with a spring limit boss, the return spring is sleeved on the guide rod, and one end of the return spring contacts the spring limit on the guide rod. The end face of the boss is in contact, and the other end of the return spring is in contact with the inner wall of the end face of the guide sleeve.

6. The automobile fuel tank filling pipe assembly as claimed in claim 4, wherein the diversion housing is tubular, the valve seat ring is connected and sealed with the end face of the diversion housing, and the other end of the diversion housing is provided with a stopper , the block is opposite to the end face of the guide rod.

7. The automobile fuel tank filling pipe assembly according to claim 6, wherein the stopper is formed by a radial stopper provided at the other end of the diversion housing.

8. The automobile fuel tank filling pipe assembly according to claim 7, wherein the radial stop rod and the radial support rod are arranged in the same axial plane.

9. The automobile fuel tank filling pipe assembly according to claim 1, characterized in that the anti-splash device and the one-way valve are embedded in the two ends of the oil guide pipe.