CN212708931U

CN212708931U - Metal oil tank

Info

Publication number: CN212708931U
Application number: CN202020738054.9U
Authority: CN
Inventors: 李卫民; 冉林; 段文强
Original assignee: Wuhan Tengsuo Technology Co ltd
Current assignee: Wuhan Tengsuo Technology Co ltd
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2021-03-16
Anticipated expiration: 2030-05-07

Abstract

The embodiment of the utility model discloses metal oil tank, include: the oil filling device comprises a metal oil tank body, an oil filling pipe and a mechanical sealing valve assembly, wherein an oil filling opening is formed in the metal oil tank body, the oil filling pipe is connected with the oil filling opening in a sealing mode, and the lower end of the mechanical sealing valve is connected with one end, far away from the oil filling opening, of the oil filling pipe in a sealing mode. Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a metal oil tank seals the oil tank through increasing a mechanical type seal valve on adding oil pipe, reduces the leakage of refueling in-process fuel steam to through "light automobile pollutant emission limit value and measuring method" (GB 18352.6-2016) refuel pollutant emission test (VII type is experimental), reduce that oil gas volatilizees atmospheric pollution.

Description

Metal oil tank

Technical Field

The utility model relates to an automobile oil tank technical field especially relates to a metal oil tank.

Background

The emission limit and measurement method of light automobile pollutants (GB 18352.6-2016) has more strict requirements on evaporative emission of a fuel system, and in order to reduce the emission of HC (hydrocarbon) in the refueling process and ensure that a refueling pollutant emission test (VII type test) generally adopts a liquid seal type to seal a fuel filling port of a fuel tank, because the liquid seal type has no abrasion of a sealing element and no durability problem, the cost is relatively low, and the market has high occupancy rate. However, for some commercial vehicles and light trucks, the liquid seal cannot be realized because the oil filling pipe is short.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned technique not enough, provide a metal oil tank, solve among the prior art some fill oil pipe shorter motorcycle types can not adopt the liquid seal formula to come the sealed technical problem of oil tank oiling mouth.

In order to achieve the above technical purpose, an embodiment of the present invention provides a metal oil tank, including: the oil filling device comprises a metal oil tank body, an oil filling pipe and a mechanical sealing valve assembly, wherein an oil filling opening is formed in the metal oil tank body, the oil filling pipe is connected with the oil filling opening in a sealing mode, and the lower end of the mechanical sealing valve is connected with one end, far away from the oil filling opening, of the oil filling pipe in a sealing mode.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a metal oil tank seals the oil tank through increasing a mechanical type seal valve on adding oil pipe, reduces the leakage of refueling in-process fuel steam to through "light automobile pollutant emission limit value and measuring method" (GB 18352.6-2016) refuel pollutant emission test (VII type is experimental), reduce that oil gas volatilizees atmospheric pollution.

Drawings

Fig. 1 is a cross-sectional view of a first embodiment of a metal fuel tank according to the present invention;

fig. 2 is an exploded view of a first embodiment of a metal fuel tank according to the present invention;

fig. 3 is an exploded view of the mechanical sealing valve of fig. 2;

fig. 4 is a schematic structural diagram of a first embodiment of a metal fuel tank according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The first embodiment is as follows:

referring to fig. 1 to 3, fig. 1 is a sectional view of a metal oil tank according to a first embodiment of the present invention; fig. 2 is an exploded view of a first embodiment of a metal fuel tank according to the present invention; fig. 3 is an exploded view of the mechanical sealing valve of fig. 2.

A metal fuel tank comprising: the oil filling device comprises a metal oil tank body 1, an oil filling pipe 2 and a mechanical sealing valve assembly, wherein the mechanical sealing valve assembly comprises a mechanical sealing valve 3 and a tooth ring 4. The metal fuel tank is generally applied to some vehicle types with short fuel filling pipes, such as some commercial vehicles and light trucks, so that the vehicle fuel tank can pass ORVR (on board refiling Vapor Recovery) testing.

This metal fuel tank body 1 has seted up the oil filler point, and the oil filler point is generally seted up on the upper portion of metal fuel tank body 1 to in the fuel pours into metal fuel tank body 1 into. The metal oil tank body 1 is fixedly connected with the frame and is arranged at different positions according to different vehicle types.

The oil filling pipe 2 is hermetically connected with the periphery of the oil filling port, and the oil filling pipe 2 and the metal oil tank body 1 are welded together in a generally welded connection mode.

Tooth circle 4 is ring shape to with add oil pipe 2 upper end sealing connection, for the convenience of tooth circle 4 installation, dismantlement and maintenance, in the in-service use process, generally adopt the connected mode of

tooth circle

4 and 2 joint of oil pipe. Meanwhile, after the model of the tooth ring 4 is selected, the shape and the size of the oil filling pipe 2 are strictly controlled, so that the oil filling pipe 2 and the tooth ring 4 form a strict matching relation, and the sealing of the connection part between the oil filling pipe 2 and the tooth ring 4 is ensured. The tooth ring 4 is also fixedly connected with an external vehicle body and plays a role in fixing the mechanical sealing valve 3. The thread ring 4 is also provided with threads and is detachably connected with the oil filling cover through the threads.

Further, can also establish first sealing washer 5 at the tooth circle 4 cover, when inciting somebody to action tooth circle 4 joint adds oil pipe 2, first sealing washer 5 is located between tooth circle 4 and the oil pipe 2 that adds, further strengthens adding the leakproofness between oil pipe 2 and the tooth circle 4.

The upper end of the mechanical sealing valve 3 is hermetically connected with the inner wall of the tooth ring 4, and the lower end of the mechanical sealing valve extends into the oil filling pipe 2. The mechanical sealing valve 3 includes a sealing valve body 31, a second seal ring 32, and an inner liner 33. The sealing valve body 31 is connected with the inner wall of the tooth ring 4 in a sealing manner, and in the actual use process, interference fit connection or welding is generally adopted, other connection modes can also be adopted, and only the connection sealing performance between the tooth ring 4 and the sealing valve body 31 needs to be ensured. The lining 33 is disposed inside the sealing valve body 31 and detachably connected to the sealing valve body 31, for example, by bolts. The second seal ring 32 is interposed between the sealing valve body 31 and the liner 33, and is clamped and fixed by the sealing valve body 31 and the liner 33, for sealing a gap between the sealing valve body 31 and the liner 33.

The first sealing ring 5 may also be sleeved on the mechanical sealing valve 3, and may have the same sealing effect as the sealing ring 4.

When refueling, the refueling cover is opened, then a refueling gun is inserted into the refueling pipe 2 through the lining 33, sealing is formed between the lining 33 and the refueling gun, and the metal fuel tank body 1 is sealed when refueling is realized so as to meet the current national standard.

Example two:

referring to fig. 4, fig. 4 is a schematic structural diagram of a metal oil tank according to a first embodiment of the present invention.

In this embodiment, a rubber tube 6 may be used to connect the metal fuel tank body 1 ' and the fuel filling pipe 2 ', and two ends of the rubber tube 6 are respectively connected with the fuel filling port and the lower end of the fuel filling pipe 2 ' in a sealing manner, instead of the welding connection in the first embodiment.

Implement the embodiment of the utility model provides a, following beneficial effect has: the utility model discloses a metal oil tank seals the oil tank through increasing a mechanical type seal valve on adding oil pipe, reduces the leakage of refueling in-process fuel steam to through "light automobile pollutant emission limit value and measuring method" (GB 18352.6-2016) refuel pollutant emission test (VII type is experimental), reduce that oil gas volatilizees atmospheric pollution.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The metal oil tank is characterized by comprising a metal oil tank body, an oil filling pipe and a mechanical sealing valve assembly, wherein an oil filling opening is formed in the metal oil tank body, the oil filling pipe is connected with the oil filling opening in a sealing mode, and the lower end of the mechanical sealing valve is connected with one end, far away from the oil filling opening, of the oil filling pipe in a sealing mode.

2. The metal fuel tank as claimed in claim 1, wherein the mechanical sealing valve assembly comprises a mechanical sealing valve and a retainer, the retainer is annular and is sealingly connected to the upper end of the fuel filler pipe, the upper end of the mechanical sealing valve is sealingly connected to the retainer, and the lower end of the mechanical sealing valve extends into the fuel filler pipe.

3. The metal fuel tank as claimed in claim 2, further comprising a first sealing ring, wherein the tooth ring is clamped with the fuel filling pipe, and the first sealing ring is sleeved on the mechanical sealing valve or the tooth ring.

4. The metal fuel tank as claimed in claim 3, wherein the mechanical sealing valve comprises a sealing valve body, a second sealing ring and a lining, the sealing valve body is connected with the inner wall of the tooth ring in a sealing manner, the lining is arranged in the sealing valve body and is detachably connected with the sealing valve body, and the second sealing ring is arranged between the sealing valve body and the lining and is clamped and fixed by the sealing valve body and the lining.

5. The metal fuel tank as claimed in claim 4, wherein the sealing valve body is connected with the tooth ring in an interference fit manner, or welded, or integrally formed.

6. A metal fuel tank as claimed in claim 5, further comprising a fuel filler cap threadedly coupled to the rim.

7. The metal fuel tank as claimed in claim 5, further comprising a hose, wherein two ends of the hose are respectively connected with the fuel filler inlet and the fuel filler pipe in a sealing manner.