CN220926268U - ORVR adds oil pipe - Google Patents

Abstract

The utility model belongs to the technical field of oil gas recovery equipment of gas stations, and particularly relates to an ORVR oil filling pipe; the hydraulic oil gun comprises an ORVR valve, an oil gun connector and an oil pipe connector; the ORVR valve comprises a valve body, a first valve core and a driving part; the valve body is provided with a refueling channel and an oil gas recovery channel; the first valve core is arranged at the oil gas recovery channel, and the driving part is arranged in the valve body and is in transmission connection with the first valve core; the oil gun joint is arranged at the oil outlet end of the ORVR valve; the oil pipe joint is arranged at the oil inlet end of the ORVR valve. The ORVR valve in the ORVR oiling pipe can be used for opening/closing the oil gas recovery channel according to the types of automobiles, so that the ORVR valve can be simultaneously suitable for the oiling requirements of automobiles with ORVR systems and automobiles without ORVR systems, and a vacuum pump in oiling equipment can be used for recovering oil gas in an oil tank of the ORVR valve and avoiding overflow of the oil gas; or the vacuum pump in the oiling equipment can not pump outside air into the oil storage tank, so that serious pollution problem caused by more oil and gas can be avoided.

Description

ORVR adds oil pipe

Technical Field

The utility model belongs to the technical field of oil gas recovery equipment of gas stations, and particularly relates to an ORVR oil filling pipe.

Background

According to the regulations of the light automobile pollutant emission limit value and the measurement method (the sixth stage of China) (GB 18352.6-2016), the emission of the national diesel locomotive is required to reach the standard, and meanwhile, new requirements are put forward for the emission of the automobile and the emission in the oiling process.

In order to make the emission of the automobile in the refueling process reach the standard, the newly produced automobile needs to be provided with an onboard refueling oil gas recovery system (Onboard Refueling Vapor Recovery, ORVR for short), and the carbon tank of the ORVR system is used for adsorbing the oil gas generated by factors such as temperature difference of an automobile fuel tank or the like during refueling; the ORVR system has a desorption function, can desorb and send the adsorbed oil gas into an internal combustion engine for combustion, realizes recycling and reduces pollutant emission;

In order to enable the carbon tank of the ORVR system to absorb oil gas in the oil tank, the ORVR system needs to improve the original oil tank and pipelines, wherein one method is to reduce the diameter of an oil inlet pipe, realize liquid sealing in the oiling process, enable the carbon tank to absorb the oil gas in the oil tank, and enable the oil gas not to overflow from an oil filling port.

At present, the fuel gun used in China is a secondary fuel gas recycling fuel gun with environmental protection requirement, and the fuel gun can absorb fuel gas in a fuel tank of an automobile during the process of filling fuel into the automobile, so that the fuel gun can be used for the automobile which is not provided with an ORVR system;

But such guns are not suitable for automobiles with ORVR systems; because the vacuum pump in the oiling equipment can not retrieve the oil gas in the car because the influence of the liquid seal of car ORVR system, in the oiling process, the oil gun then can form equal volume's oil gas with the air suction of external world to underground oil storage tank, and the oil gas can pollute the environment through the outward discharge of evacuation pipe, causes more serious pollution problem.

In the society, an automobile without an ORVR system and an automobile with the ORVR system exist at the same time, if the existing secondary oil and gas recovery oil gun is directly replaced by an oil gun which can be suitable for the ORVR system, the existing secondary oil and gas recovery oil gun cannot be used continuously, so that a great amount of resources are wasted, and meanwhile, oil and gas overflows when the automobile without the ORVR system is refueled, so that serious pollution is caused;

If the oil gun applicable to the ORVR system is not replaced, serious pollution problems are caused when the automobile with the ORVR system is refueled. Therefore, the invention provides a refueling device capable of adjusting the refueling mode of the secondary fuel gas recovery refueling gun according to the type of the automobile, and the refueling device is a technical problem to be solved urgently by a person skilled in the art.

Disclosure of utility model

In order to solve the problems in the prior art, the utility model provides an ORVR refueling pipe to solve the technical problem that a secondary fuel gas recovery refueling gun in the prior art cannot be simultaneously applied to the refueling requirements of an automobile with an ORVR system and an automobile without the ORVR system.

The utility model is realized by the following technical scheme:

An ORVR oil filler tube comprising an ORVR valve, a gun connector and a tubing connector;

the ORVR valve comprises a valve body, a first valve core and a driving part;

the valve body is provided with a refueling channel and an oil gas recovery channel which are not communicated with each other;

The first valve core is movably arranged at the oil gas recovery channel, the driving part is arranged in the valve body, and the action end of the driving part is in transmission connection with the first valve core and is used for driving the first valve core to act so as to realize the opening/closing of the oil gas recovery channel;

the oil gun joint is arranged at the oil outlet end of the ORVR valve;

the oil pipe joint is arranged at the oil inlet end of the ORVR valve.

In order to better implement the present utility model, further optimization is made in the above structure, the driving part includes a diaphragm and a return spring a;

The valve body is internally provided with a negative pressure cavity, the oil gas recovery channel is communicated with the negative pressure cavity through a channel A, a sliding hole is arranged right below the negative pressure cavity, the sliding hole is vertically staggered with the oil gas recovery channel, the shape of the sliding hole is matched with the cross section shape of the first valve core, and the first valve core is arranged in the sliding hole in a sliding manner along the axial direction of the sliding hole;

The edge of the diaphragm is connected and sealed with the edge of the negative pressure cavity, one end of the first valve core is connected with the middle part of the diaphragm, the reset spring A is arranged between the first valve core and the diaphragm, and two ends of the reset spring A are respectively propped against the diaphragm and the bottom wall of the negative pressure cavity.

For better implementing the utility model, further optimization is made in the above structure, and the ORVR valve further comprises a sealing seat and a second valve core;

a sinking groove is formed in one side, away from the negative pressure cavity, of the valve body, and the oil gas recovery channel is communicated with the sinking groove through a channel B;

the sealing seat is arranged at the notch of the sink groove, a valve port is arranged in the middle of the sealing seat, the second valve core is movably arranged at the valve port, and the first valve core is in transmission connection with the second valve core;

when the diaphragm drives the first valve core to act to close the oil gas recovery channel, the first valve core can push the second valve core to a direction away from the valve port, so that the valve port is opened.

In order to better realize the utility model, the structure is further optimized, one end of the second valve core, which is close to the first valve core, is provided with a clamping part, a return spring B is arranged between the clamping part and the sealing seat, and two ends of the return spring B are respectively propped against the clamping part and the sealing seat.

In order to better realize the utility model, the structure is further optimized, the sealing surface of the sealing seat is an inclined surface, and the sealing surface of the second valve core is provided with a sealing ring.

In order to better realize the utility model, in the structure, the utility model is further optimized, a return spring C is arranged between the first valve core and the sealing seat, and two ends of the return spring C are respectively propped against the first valve core and the sealing seat.

In order to better realize the utility model, the structure is further optimized, and the outer part of the valve body is provided with a protective sleeve.

In order to better realize the utility model, the structure is further optimized, and the two ends of the oil gas recovery channel are respectively provided with an oil gas extension pipe A and an oil gas extension pipe B;

One end of the oil gas extension pipe A, which is far away from the oil gas recovery channel, is used for being connected with an oil gun;

And one end of the oil gas extension pipe B, which is far away from the oil gas recovery channel, is connected with the oil filling pipe.

In order to better realize the utility model, the structure is further optimized, and the two ends of the oiling channel are respectively provided with an oil extension pipe A and an oil extension pipe B;

One end of the oil extension pipe A, which is far away from the oiling channel, is used for being connected with an oiling gun, and the oil extension pipe A is positioned in the oil extension pipe A;

One end of the oil extension pipe B, which is far away from the oiling channel, is used for being connected with an oiling pipe, and the oil extension pipe B is positioned in the oil extension pipe B.

In order to better implement the utility model, a further optimization is made in the above structure, and the valve body is made of aluminum alloy.

In summary, the utility model has the following technical effects:

The ORVR valve in the ORVR oiling pipe can open/close the oil gas recovery channel according to the types of automobiles, so that the ORVR valve can be simultaneously suitable for oiling requirements of automobiles with ORVR systems and automobiles without ORVR systems; when the automobile without the ORVR system is refueled, the oil gas recovery channel is opened, so that the vacuum pump in the refueled equipment can recover the oil gas in the oil tank, and the overflow of the oil gas is avoided; when the automobile with the ORVR system is refueled, the oil gas recovery channel is closed, and the vacuum pump in the refueled equipment cannot suck outside air into the oil storage tank, so that the serious pollution problem caused by the generation of more oil gas is avoided.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of the construction of an ORVR fuel filler tube of the present utility model;

FIG. 2 is a cross-sectional view of an oil and gas recovery passage in an ORVR fuel filler tube of the present utility model in an open position;

Fig. 3 is a partial enlarged view of a portion a in fig. 2;

FIG. 4 is a diagram of the mating of the diaphragm and the first valve element in an ORVR fuel filler tube of the present utility model;

FIG. 5 is a diagram of the mating of a seal seat in an ORVR fuel filler tube with a second valve cartridge in accordance with the present utility model;

Fig. 6 is a cross-sectional view of an oil and gas recovery passage in an ORVR filler tube of the present utility model in a closed position.

Reference numerals:

1. An ORVR valve; 11. a valve body; 111. a fueling channel; 112. an oil gas recovery channel; 113. a negative pressure chamber; 114. a slide hole; 115. sinking grooves; 116. a connection part; 117. an extension; 12. a first valve core; 13. a driving section; 131. a diaphragm; 132. a return spring A; 14. a sealing seat; 15. a second valve core; 151. a seal ring; 16. a return spring B; 17. a return spring C; 18. a protective sleeve; 191. a channel A; 192. a channel B;

2. An oil gun joint; 21. a bushing; 22. a rotary joint; 23. clamping springs; 241. a sealing member A; 242. a sealing member B; 243. a sealing member C;

3. An oil pipe joint; 31. and a pressing part.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

In the description of the present utility model, it is to be noted that, unless otherwise indicated, the meaning of "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.

Examples:

As shown in fig. 1 to 6:

An ORVR filler pipe comprising an ORVR valve 1, a gun fitting 2 and a tubing fitting 3; wherein,

The ORVR valve 1 includes a valve body 11, a first spool 12, and a drive portion 13;

The valve body 11 is provided with a refueling passage 111 and an oil gas recovery passage 112 which are not communicated with each other;

the first valve core 12 is movably arranged at the oil gas recovery channel 112, the driving part 13 is arranged in the valve body 11, and the action end of the driving part 13 is in transmission connection with the first valve core 12 and is used for driving the first valve core 12 to act so as to realize the opening/closing of the oil gas recovery channel 112;

The oil gun joint 2 is arranged at the oil outlet end of the ORVR valve 1 and is used for being connected with an oil gun;

The oil pipe joint 3 is arranged at the oil inlet end of the ORVR valve 1 and is used for being connected with an oil filling pipe.

The ORVR valve 1 in the ORVR oiling pipe can realize the opening/closing of the oil gas recovery passage 112 according to the types of automobiles, so that the ORVR valve can be simultaneously suitable for the oiling requirements of automobiles with ORVR systems and automobiles without ORVR systems; when the automobile without the ORVR system is refueled, the oil gas recovery channel 112 is opened, so that the vacuum pump in the refueled equipment can recover the oil gas in the oil tank, and the overflow of the oil gas is avoided; when the automobile with the ORVR system is refueled, the oil gas recovery channel 112 is closed, and the vacuum pump in the refueled equipment cannot suck outside air into the oil storage tank, so that serious pollution problems caused by the generation of more oil gas are avoided.

The above-mentioned types of automobiles refer to automobiles with an ORVR system and automobiles without an ORVR system.

Preferably, the valve body 11 is made of a lightweight aluminum alloy to make the ORVR filler pipe more lightweight and convenient to use.

Preferably, the driving part 13 includes a diaphragm 131 and a return spring a132; wherein,

The valve body 11 is provided with a negative pressure cavity 113, the oil gas recovery channel 112 is communicated with the negative pressure cavity 113 through a channel A191, a sliding hole 114 is arranged right below the negative pressure cavity 113, the sliding hole 114 is vertically staggered with the oil gas recovery channel 112, the shape of the sliding hole 114 is matched with the cross section shape of the first valve core 12, and the first valve core 12 is arranged in the sliding hole 114 in a sliding manner along the axial direction of the sliding hole 114;

The edge of the diaphragm 131 is connected and sealed with the edge of the negative pressure cavity 113, one end of the first valve core 12 is connected with the middle part of the diaphragm 131, the reset spring A132 is arranged between the first valve core 12 and the diaphragm 131, and two ends of the reset spring A132 are respectively propped against the bottom walls of the diaphragm 131 and the negative pressure cavity 113;

When the automobile with the ORVR system is refueled, as the caliber of the oil inlet pipeline of the oil tank is improved to be small, negative pressure is formed between the opening of the oil inlet pipeline and the oil filling port of the oil filling gun, the negative pressure is transmitted to the negative pressure cavity 113 through the oil gas recovery channel 112 and the channel A191, the middle part of the diaphragm 131 is adsorbed and moves downwards, at the moment, the first valve core 12 is pushed by the diaphragm 131 to move downwards and block the oil gas recovery channel 112, the oil gas recovery channel 112 is in a closed state, and the vacuum pump in the oil filling equipment cannot suck the outside air into the oil storage tank.

When the oiling is completed and the worker takes out the oiling gun from the opening of the oil inlet pipeline, the negative pressure at the oiling port of the oiling gun disappears, the diaphragm 131 can be restored to the initial position under the action of the reset spring A132, and the diaphragm 131 can drive the first valve core 12 to move upwards, so that the oil gas recovery channel 112 is in an open state; in this state, the fuel dispenser may be used to fuel an automobile that does not have an ORVR system.

It should be noted that, when the fuel gun is inserted into the opening of the fuel inlet pipe, the negative pressure between the opening of the fuel inlet pipe and the fuel inlet of the fuel gun is gradually increased, and when the negative pressure is greater than the restoring force of the restoring spring a132, the middle part of the diaphragm 131 overcomes the restoring force of the restoring spring a132 to move downward, and drives the first valve core 12 to act.

Preferably, the diaphragm 131 is made of a fluororubber, which has a high durability to improve the service life of the ORVR fuel filler pipe.

Optimally, the ORVR filler pipe further comprises a sealing seat 14 and a second valve core 15; wherein,

A sinking groove 115 is formed in one side, away from the negative pressure cavity 113, of the valve body 11, and the oil gas recovery channel 112 is communicated with the sinking groove 115 through a channel B192;

The sealing seat 14 is arranged at the notch of the sinking groove 115, a valve port is arranged in the middle of the sealing seat 14, the second valve core 15 is movably arranged at the valve port, and the first valve core 12 is in transmission connection with the second valve core 15;

When the diaphragm 131 drives the first valve core 12 to act to close the oil gas recovery channel 112, the first valve core 12 pushes the second valve core 15 to be far away from the valve port, so that the valve port is opened, and the outside air enters the sink 115 from the valve port, so that the negative pressure between the opening of the oil inlet pipeline and the oil filling port of the oil filling gun is maintained within a fixed range, and the problem of frequent gun jump in the oil filling process caused by overlarge negative pressure between the opening of the oil inlet pipeline and the oil filling port of the oil filling gun is avoided.

It should be noted that maintaining the negative pressure within a fixed range refers to the negative pressure being greater than the restoring force of the return spring a132 and less than the jump gun pressure, so as to maintain the normal operation of the fuel dispenser when filling the vehicle with the ORVR system.

Optimally, one end of the second valve core 15, which is close to the first valve core 12, is provided with a clamping part, a reset spring B16 is arranged between the clamping part and the sealing seat 14, and two ends of the reset spring B16 are respectively propped against the clamping part and the sealing seat 14;

When the diaphragm 131 drives the first valve core 12 to move away from the oil gas recovery channel 112 under the action of the return spring a132, the acting force of the first valve core 12 on the second valve core 15 is also eliminated, and at this time, the second valve core 15 is blocked at the valve port under the action of the return spring B16.

Preferably, the sealing surface of the sealing seat 14 is an inclined surface, and the sealing surface of the second valve element 15 is provided with a sealing ring 151, so as to improve the sealing effect of the second valve element 15.

Preferably, a return spring C17 is disposed between the first valve core 12 and the sealing seat 14, and two ends of the return spring C17 are respectively abutted against the first valve core 12 and the sealing seat 14; the arrangement of the return spring C17 can expedite the return of the first valve spool 12 to facilitate the use of the ORVR filler pipe.

Optimally, the outside of the valve body 11 is provided with a protective sleeve 18, and the protective sleeve 18 can play a certain role in protecting the valve body 11 so as to improve the service life of the ORVR oil filling pipe.

Optimally, two ends of the oil gas recovery channel 112 are respectively provided with an oil gas extending pipe A1161 and an oil gas extending pipe B1162; the two ends of the oiling channel 111 are respectively provided with an oil extension pipe A1171 and an oil extension pipe B1172;

The oil gas extending pipe A1161, the oil gas extending pipe B1162, the oil liquid extending pipe A1171 and the oil liquid extending pipe B1172 are all of tubular structures, one end of the oil gas extending pipe A1161, which is far away from the oil gas recovery channel 112, and one end of the oil liquid extending pipe A1171, which is far away from the oil gas recovery channel 112, are both used for being connected with the oil gun, and the oil gas extending pipe A1161 is positioned in the oil liquid extending pipe A1171;

one end of the oil gas extension pipe B1162 far away from the oil gas recovery channel 112 and one end of the oil liquid extension pipe B1172 far away from the oil gas recovery channel 112 are both used for being connected with the oil filling pipe, and the oil gas extension pipe B1162 is located inside the oil liquid extension pipe B1172.

Optimally, the oil gun joint 2 comprises a sealing element A241, a clamping spring 23, a sealing element B242, a bushing 21, a rotary joint 22 and the like; wherein,

The bushing 21 is fixedly sleeved on the outer side wall of the oil extension pipe A1171, the rotary joint 22 is sleeved outside the bushing 21, and one end of the rotary joint 22, which is far away from the valve body 11, is clamped by the clamp spring 23, so that the rotary joint 22 can freely rotate on the oil extension pipe A1171 and cannot slide along the radial direction of the oil extension pipe A1171;

The sealing element A241 and the sealing element B242 are respectively sleeved on the outer side wall and the inner side wall of the rotary joint 22, and the oil gun is connected with the oil outlet end of the valve body 11 through the rotary joint 22;

The swivel joint 22 is provided in a manner that allows the fuel dispenser to be freely rotated to facilitate use of the fuel dispenser.

Preferably, the oil gun joint 2 further comprises a sealing element C243, and the sealing element C243 is sleeved on the outer side wall of the oil gas inlet of the oil gas extension pipe A1161, so that a good sealing effect is achieved, and the condition that gasoline and oil gas are mixed in the ORVR valve 1 is avoided.

The seal a241, the seal B242, and the seal C243 are made of rubber materials.

Optimally, the outer side wall of the oil extension pipe B1172 is provided with a locking part A, the outside of the oil extension pipe B1172 is annularly provided with a pressing part 31, and the end part of an oil pipe in the oil filling pipe is firmly sleeved on the connecting part 116 by the pressing of the pressing part 31, so that the connection between the oil pipe in the oil filling pipe and the valve body 11 is more stable;

An anti-loosening part B is arranged at the oil gas outlet of the oil liquid extension pipe B1172, and the end part of an oil gas pipe in the oil filling pipe is firmly sleeved at the oil gas outlet of the oil liquid extension pipe B1172 through the anti-loosening part B.

It should be noted that, the above-mentioned locking portion a and locking portion B are barbs extending in the axial direction away from the valve body 11, which can increase the tightness of connection between the oil pipe in the oil filling pipe and the oil gas pipe and the valve body 11, so as to avoid the oil pipe in the oil filling pipe from being separated from the oil gas pipe and the valve body 11.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. An ORVR filler neck, characterized by: comprises an ORVR valve (1), an oil gun joint (2) and an oil pipe joint (3);

The ORVR valve (1) comprises a valve body (11), a first valve core (12) and a driving part (13);

The valve body (11) is provided with a refueling channel (111) and an oil gas recovery channel (112) which are not communicated with each other;

The first valve core (12) is movably arranged at the oil gas recovery channel (112), the driving part (13) is arranged in the valve body (11), and the action end of the driving part (13) is in transmission connection with the first valve core (12) and is used for driving the first valve core (12) to act so as to realize the opening/closing of the oil gas recovery channel (112);

the oil gun joint (2) is arranged at the oil outlet end of the ORVR valve (1);

The oil pipe joint (3) is arranged at the oil inlet end of the ORVR valve (1).

2. The ORVR filler tube of claim 1, wherein: the driving part (13) comprises a diaphragm (131) and a return spring A (132);

The valve body (11) is internally provided with a negative pressure cavity (113), the oil gas recovery channel (112) is communicated with the negative pressure cavity (113) through a channel A (191), a sliding hole (114) is formed right below the negative pressure cavity (113), the sliding hole (114) is vertically staggered with the oil gas recovery channel (112), the shape of the sliding hole (114) is matched with the cross-section shape of the first valve core (12), and the first valve core (12) is slidably arranged in the sliding hole (114) along the axial direction of the sliding hole (114);

The edge of the diaphragm (131) is connected and sealed with the edge of the negative pressure cavity (113), one end of the first valve core (12) is connected with the middle part of the diaphragm (131), the reset spring A (132) is arranged between the first valve core (12) and the diaphragm (131), and two ends of the reset spring A (132) are respectively propped against the diaphragm (131) and the bottom wall of the negative pressure cavity (113).

3. The ORVR filler tube of claim 2, wherein: the ORVR valve (1) further comprises a sealing seat (14) and a second valve core (15);

A sinking groove (115) is formed in one side, far away from the negative pressure cavity (113), of the valve body (11), and the oil gas recovery channel (112) is communicated with the sinking groove (115) through a channel B (192);

the sealing seat (14) is arranged at the notch of the sink (115), a valve port is arranged in the middle of the sealing seat (14), the second valve core (15) is movably arranged at the valve port, and the first valve core (12) is in transmission connection with the second valve core (15);

When the diaphragm (131) drives the first valve core (12) to act to close the oil gas recovery channel (112), the first valve core (12) can push the second valve core (15) to be far away from the valve port, so that the valve port is opened.

4. The ORVR filler tube of claim 3, wherein: one end of the second valve core (15) close to the first valve core (12) is provided with a clamping part, a return spring B (16) is arranged between the clamping part and the sealing seat (14), and two ends of the return spring B (16) are respectively propped against the clamping part and the sealing seat (14).

5. The ORVR filler tube as set forth in claim 4, wherein: the sealing surface of the sealing seat (14) is an inclined surface, and a sealing ring (151) is arranged on the sealing surface of the second valve core (15).

6. The ORVR filler tube as set forth in claim 4, wherein: a return spring C (17) is arranged between the first valve core (12) and the sealing seat (14), and two ends of the return spring C (17) are respectively abutted to the first valve core (12) and the sealing seat (14).

7. The ORVR filler tube of any one of claims 1-6, wherein: a protective sleeve (18) is arranged outside the valve body (11).

8. The ORVR filler tube as set forth in claim 7, wherein: the two ends of the oil gas recovery channel (112) are respectively provided with an oil gas extension pipe A (1161) and an oil gas extension pipe B (1162);

One end of the oil gas extension pipe A (1161) far away from the oil gas recovery channel (112) is used for being connected with an oil gun;

The end of the oil gas extension pipe B (1162) far away from the oil gas recovery channel (112) is connected with the oil filling pipe.

9. The ORVR filler tube of claim 8, wherein: the two ends of the oiling channel (111) are respectively provided with an oil extension pipe A (1171) and an oil extension pipe B (1172);

One end of the oil extension pipe A (1171) away from the oiling channel (111) is used for being connected with an oiling gun, and the oil and gas extension pipe A (1161) is positioned in the oil extension pipe A (1171);

One end of the oil extension pipe B (1172) away from the oiling channel (111) is used for being connected with an oiling pipe, and the oil and gas extension pipe B (1162) is located inside the oil extension pipe B (1172).

10. The ORVR filler tube as set forth in claim 9, wherein: the valve body (11) is made of an aluminum alloy.