Non-oil-dripping oil gun oil nozzle with ORVR function

Abstract

The utility model provides the non-oil-dripping oil gun oil nozzle with the ORVR function, and the technical problem that potential safety hazards exist due to the fact that an existing oil gun oil nozzle does not have the posture gun jumping function is solved. The device comprises a pipe body, a valve sleeve, a valve element assembly, a vacuum pipe and a gravity plugging part, the valve sleeve is arranged at one end of the pipe body, the valve element assembly is arranged in the end, away from the pipe body, of the valve sleeve, an air guide channel is formed in the valve sleeve, the vacuum pipe is arranged in the pipe body, and one end of the vacuum pipe is arranged on the side wall of the end, away from the valve sleeve, of the pipe body; when the oil nozzle of the oil gun faces downwards, the gravity blocking part is separated from the air guide channel, and when the oil nozzle of the oil gun faces upwards, the gravity blocking part blocks the air guide channel. The gravity plugging part is arranged to enable the oil nozzle of the oil gun to be downwards separated from the gas guide channel, and the gas guide channel is plugged when the oil nozzle of the oil gun faces upwards, so that the technical problem that potential safety hazards exist due to the fact that a traditional oil nozzle of the oil gun does not have a posture gun jumping function is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil gun technical field, especially an oil gun nozzle without oil dripping with ORVR function. BACKGROUND

[0002] In the process of oiling, the oil product is added from the oil tank to the automobile oil tank, and the gasoline gas in the oil tank is released into the atmosphere to pollute the environment. Therefore, there is an oil nozzle with ORVR function on the market, with application number 2023211646426, which comprises an oil pipe, a rear seat and a valve sleeve connected in turn in a detachable manner. The oil pipe is provided with a sealing cone section. The peripheral wall of the oil pipe is provided with a side suction hole. A vacuum pipe is installed in the oil pipe, and the vacuum pipe is communicated with the side suction hole. Although this method can solve the technical problems of oiling and oil gas recovery of the oil inlet of the automobile oil tank, the oil gun nozzle does not have the posture jump gun function, and cannot guarantee the jump gun when the oil gun lifts the nozzle upward, which has certain safety hidden troubles. SUMMARY

[0003] The utility model aims at providing an oil gun nozzle without oil dripping with ORVR function, which solves the technical problem of safety hidden trouble caused by the lack of posture jump gun function in the existing oil gun nozzle. The preferred technical solutions in the many technical solutions provided by the utility model can produce many technical effects, which are described below.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] The utility model provides an oil gun nozzle without oil dripping with ORVR function, which comprises a pipe body, a valve sleeve, a valve core assembly, a vacuum pipe and a gravity plugging part. The valve sleeve is arranged at one end of the pipe body. The valve core assembly is arranged inside the end of the valve sleeve away from the pipe body. A gas guide channel is formed in the valve sleeve. The vacuum pipe is arranged inside the pipe body. One end of the vacuum pipe is arranged on the side wall of the end of the pipe body away from the valve sleeve. The other end of the vacuum pipe is communicated with the gas guide channel through the gravity plugging part. When the oil gun nozzle is downward, the gravity plugging part is separated from the gas guide channel. When the oil gun nozzle is upward, the gravity plugging part plugs the gas guide channel.

[0006] Preferably, the valve sleeve has a containing cavity inside. The containing cavity is communicated with the gas guide channel and the vacuum pipe at both ends respectively. The gravity plugging part is arranged in the containing cavity. When the oil gun nozzle is downward, the gravity plugging part is close to the vacuum pipe. When the oil gun nozzle is upward, the gravity plugging part plugs the gas guide channel.

[0007] Preferably, the accommodating cavity has a diameter larger than that of the vacuum tube, the inner wall of the accommodating cavity near one end of the air guide channel is in a conical shape, and the gravity blocking part is a spherical body.

[0008] Preferably, the insertion end of the valve sleeve extends into the pipe body, and the inner wall of the insertion end gradually increases in diameter from the inside of the valve sleeve to the inside of the pipe body.

[0009] Preferably, the inner wall of the pipe body extends smoothly from the end near the valve sleeve to the end away from the valve sleeve.

[0010] Preferably, the oil injection pipe extends to the end away from the valve sleeve at one end, and is connected to the valve sleeve at the other end, and the inner wall of the oil injection pipe extends smoothly from the end near the valve sleeve to the end away from the valve sleeve.

[0011] Preferably, the gas cover is arranged outside the pipe body.

[0012] The above technical solutions are adopted in the present application, and the present application has at least the following beneficial effects:

[0013] The oil nozzle of the oil gun with the ORVR function comprises a pipe body, a valve sleeve, a valve core assembly, a vacuum tube, and a gravity blocking part. The valve sleeve is arranged at one end of the pipe body, the valve core assembly is arranged inside the end of the valve sleeve away from the pipe body, the valve sleeve is provided with an air guide channel, the vacuum tube is arranged inside the pipe body, one end of the vacuum tube is arranged on the side wall of the end of the pipe body away from the valve sleeve, the other end of the vacuum tube is communicated with the air guide channel through the gravity blocking part, the gravity blocking part is separated from the air guide channel when the oil gun nozzle is downward, and the gravity blocking part blocks the air guide channel when the oil gun nozzle is upward. In the present application, the gravity blocking part is used to separate the oil gun nozzle from the air guide channel when the oil gun nozzle is downward, and the air guide channel is blocked when the oil gun nozzle is upward, thereby solving the technical problem of the safety hidden danger of the traditional oil gun nozzle without the posture jump gun function.

[0014] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1It is the oil gun nozzle structure schematic diagram of the oil gun without dripping oil with ORVR function provided by the embodiment of the utility model;

[0017] Figure 2 It is the oil gun nozzle structure schematic diagram of the oil gun without dripping oil with ORVR function provided by the embodiment of the utility model;

[0018] Figure 3 It is the oil gun nozzle structure schematic diagram of the oil gun without dripping oil with ORVR function provided by the embodiment of the utility model;

[0019] Figure 4 It is the oil gun nozzle structure schematic diagram of the oil gun without dripping oil with ORVR function provided by the embodiment of the utility model;

[0020] Figure 5 It is the oil gun structure schematic diagram provided by the embodiment of the utility model;

[0021] Figure 6 It is the gas cover sectional structure schematic diagram provided by the embodiment of the utility model;

[0022] Figure 7 It is the sealing lip structure schematic diagram provided by the embodiment of the utility model;

[0023] Figure 8 It is the first gas cover framework structure schematic diagram provided by the embodiment of the utility model;

[0024] Figure 9 It is the second gas cover framework structure schematic diagram provided by the embodiment of the utility model;

[0025] Figure 10 It is the first gas cover framework and the second gas cover framework assembly structure schematic diagram provided by the embodiment of the utility model.

[0026] In the drawing, 1, pipe body;2, valve sleeve;3, valve core assembly;4, vacuum pipe;5, gravity plugging part;6, gas guide channel;7, containing cavity;8, oil injection pipe;9, gas cover;10, insertion end;11, sealing lip;12, first gas cover framework;13, second gas cover framework;14, fracture ring;15, gas guide hole;16, spring;17, valve core. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantage of the utility model more clear, the technical scheme of the utility model will be described in detail below. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of the utility model.

[0028] The specific embodiment of the utility model provides a kind of not oil dripping fuel gun nozzle with ORVR function, it is combined with the drawings of the utility model Figure 1 And the drawings of the utility model Figure 2 As shown in the drawings, it mainly includes pipe body 1, valve sleeve 2, valve core assembly 3, vacuum tube 4 and gravity plugging part 5,

[0029] Wherein pipe body 1 is fueling pipe body part, for stretching into oil tank to fuel, valve sleeve 2 is arranged at one end of pipe body 1, valve core assembly 3 is arranged at the inside of one end of valve sleeve 2 away from pipe body 1, valve core assembly 3 plays the role of closure in the state of not fueling, air passage 6 is opened in valve sleeve 2, vacuum tube 4 is arranged inside pipe body 1, one end of vacuum tube 4 is arranged on the side wall of one end of pipe body 1 away from valve sleeve 2, the other end is communicated with air passage 6 by gravity plugging part 5, one end of air passage 6 is communicated with vacuum tube 4 by gravity plugging part 5, the other end is connected to the side wall of valve sleeve 2 and is arranged the air hole of gun jumping, and the diaphragm of the gun jumping mechanism in oil gun is connected, so when fueling in oil tank through pipe body 1, the gas in oil tank can be extracted through vacuum tube 4 and air passage 6, thereby avoiding oil gas to escape, and when the oil level in oil tank reaches vacuum tube 4, it is absorbed into vacuum tube 4, so that the negative pressure inside vacuum tube 4 and air passage 6 is increased to pull the diaphragm, so that the oil gun is automatically jumped, and when the fuel gun nozzle is downward, gravity plugging part 5 is separated from air passage 6, at this time, vacuum tube 4 and air passage 6 are communicated, and when the fuel gun nozzle is upward, gravity plugging part 5 blocks air passage 6, at this time, the negative pressure in air passage 6 is also increased to make the oil gun automatically jump. So it can make this fuel gun nozzle have the function of posture gun jumping.

[0030] In the specific embodiment of the present application, the inside of valve sleeve 2 has accommodating cavity 7, the two ends of accommodating cavity 7 are communicated with air passage 6 and vacuum tube 4 respectively, gravity plugging part 5 is arranged in accommodating cavity 7, gravity plugging part 5 is close to vacuum tube 4 when fuel gun nozzle is downward, gravity plugging part 5 blocks air passage 6 when fuel gun nozzle is upward, accommodating cavity 7 limits the moving position of gravity plugging part 5, to ensure that gravity plugging part 5 can block air passage 6 when fuel gun nozzle is upward.

[0031] Specifically, the diameter of accommodating cavity 7 in the present application is greater than the diameter of vacuum tube 4, the inner wall of one end of accommodating cavity 7 close to air passage 6 is conical cylinder, gravity plugging part 5 is spherical body, the spherical body can be steel ball, the steel ball can move with the posture of fuel gun nozzle in accommodating cavity 7, and when the fuel gun nozzle is upward, the steel ball will move to the conical cavity position of accommodating cavity 7 and block air passage 6.

[0032] The gravity blocking part 5 can also be designed as a plate-shaped body, and the gravity blocking part 5 is connected with the sliding rail in the air guide channel 6 through a sliding rod. The size of the gravity blocking part 5 is smaller than the diameter of the containing cavity 7, so that the gravity blocking part 5 can communicate the air guide channel 6 and the vacuum tube 4 after the gravity blocking part 5 is separated from the air guide channel 6. The gravity blocking part 5 can slide towards the air guide channel 6 under the action of gravity to block, and can also be separated from the air guide channel 6 under the action of gravity.

[0033] In some embodiments, as shown in the accompanying drawings, Figure 2 The diameter of the inner wall of the insertion end 10 gradually increases from the inside of the valve sleeve 2 to the inside of the pipe body 1, so that the inner wall of the valve sleeve 2 and the inner wall of the pipe body 1 are as smoothly connected as possible. The insertion of the valve sleeve 2 can further avoid the formation of a step-like dead angle between the valve sleeve 2 and the pipe body 1, and can avoid the problem of oil dripping due to residual oil in the pipeline after oiling.

[0034] Therefore, the inner wall of the pipe body 1 is smoothly extended from the end close to the valve sleeve 2 to the end away from the valve sleeve 2, further avoiding the problem of oil dripping due to residual oil in the dead angle.

[0035] In some embodiments, as shown in the accompanying drawings, Figure 1 The oil injection pipe 8 is provided inside the pipe body 1, one end of the oil injection pipe 8 extends to the end away from the valve sleeve 2, the other end of the oil injection pipe 8 is connected with the valve sleeve 2, and the inner wall of the oil injection pipe 8 is smoothly extended from the end close to the valve sleeve 2 to the end away from the valve sleeve 2. In this way, the oil injection pipe 8 is provided inside to avoid the problem of oil dripping due to residual oil in the pipeline after oiling.

[0036] In some embodiments, the gas cover 9 is provided outside the pipe body 1. The gas cover 9 can be provided on the oil filler of the oil tank during oiling to seal, and the oil gas enters the oil gun at the rear through the gap between the gas cover 9 and the pipe body 1 for recovery.

[0037] The space between the gas cover 9 and the pipe body 1 is communicated with the oil vapor recovery channel of the oil gun to be installed; when the oil gun is used to fill the oil tank, the oil vapor escaping from the gap between the gas cover 9 and the pipe body 1 is sealed and collected by the gas cover 9, and the collected oil vapor continuously escapes from the oil tank under the pressure of oil filling, enters the oil vapor recovery channel, and then enters the oil gun for subsequent recovery, so that the oil nozzle has the oil vapor recovery function. Due to the particularity of the new type of oil tank with the ORVR function, in order to realize dynamic liquid sealing, the oil tank opening of the new type of oil tank is small. During oil filling, the oil nozzle will produce a siphon phenomenon (Venturi phenomenon), and a negative pressure will be formed in the cavity of the gas cover 9 and the oil tank opening. The large negative pressure will cause the oil filling to be unable to be completed smoothly to a certain extent. The pressure relief holes provided on the gas cover 9 can reduce the negative pressure and ensure the negative pressure state of the oil nozzle to a certain extent, prevent the negative pressure from being too large, avoid oil vapor overflow, and keep the ORVR sensor on the oil gun working normally. Therefore, the oil nozzle of the oil gun without oil dripping and with the ORVR function is suitable for cars without the ORVR function and cars with the ORVR function.

[0038] Specifically, in combination with the accompanying drawings Figure 6 - the accompanying drawings Figure 10 As shown in the drawings, the gas cover 9 includes a gas cover body part, a sealing lip 11, a first gas cover skeleton 12, and a second gas cover skeleton 13. The gas cover body part and the sealing lip 11 are made of oil-resistant high polymer materials to realize sealing with the oil filling opening during oil filling. The gas cover body part is provided with multiple bends to realize expansion and contraction, and the sealing is realized by the sealing lip 11 during oil filling. The sealing lip 11 adopts a unique eccentric bowl-shaped structure, which can well realize the adhesion to the wall of the oil tank opening, so as to collect the oil vapor escaping from the oil tank opening during oil filling. The first gas cover skeleton 12 and the second gas cover skeleton 13 can be connected by mutual buckling, and the sealing lip 11 is connected to the gas cover body part.

[0039] The pipe body 1 is provided with a fracture ring 14, which is a groove arranged in the circumferential direction of the pipe body 1. When the oil gun is pulled by a large external force, such as when the car directly drives away after oil filling, the oil gun is not returned to the original position, and the pipe body 1 will be broken, thereby avoiding excessive pulling of the oil gun and the oil filling machine, protecting the oil gun and the oil filling machine, and realizing the fracture protection function of the oil nozzle.

[0040] A plurality of air guide holes are arranged in the radial direction of the valve sleeve 2. The through holes are connected with the vacuum pipe 4. The valve sleeve 3 is provided with a vacuum generating hole, which is communicated with the inner cavity of the valve sleeve 2. The vacuum generating hole is connected with the diaphragm of the oil gun jump mechanism in the oil gun. After the oil tank is filled with gasoline and the side suction hole of the vacuum pipe 4 is immersed, the negative pressure in the vacuum pipe 4 is increased to pull the diaphragm, so that the oil gun automatically jumps, and the oil nozzle has the vacuum generating function of cooperating with the oil gun jump.

[0041] The valve core assembly 3 comprises a spring 16 and a valve core 17, the valve core 17 is elastically sealed with the valve sleeve 2 through the spring 16; the seal formed by the valve core 17 and the valve sleeve 2 is pushed away by the entering gasoline to enter the oil filling pipe 8 to fill oil when filling oil; after the oil gun jumps, that is, the oil filling is completed, the valve core 17 is automatically resealed with the valve sleeve 2 under the action of the elastic force of the valve core 17 when losing the pushing force of the gasoline, so that the oil nozzle realizes the oil leakage prevention function.

[0042] The pipe body 1 and the oil filling pipe 8 are made of stainless steel or aluminum alloy material, so that the oil gun is light and wear-resistant.

[0043] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", "some examples" and the like mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0044] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A non-drip refueling nozzle with ORVR function, characterized in that, The valve sleeve is arranged at one end of the pipe body, the valve core assembly is arranged inside the valve sleeve away from the pipe body, a gas guide channel is arranged in the valve sleeve, the vacuum pipe is arranged inside the pipe body, one end of the vacuum pipe is arranged on the side wall of the end of the pipe body away from the valve sleeve, the other end of the vacuum pipe is communicated with the gas guide channel through the gravity blocking part, the gravity blocking part is separated from the gas guide channel when the oil nozzle of the oil gun is downward, and the gravity blocking part blocks the gas guide channel when the oil nozzle of the oil gun is upward.

2. The no-drip filler neck for a fuel dispenser with ORVR functionality of claim 1, wherein, The valve sleeve is arranged at one end of the pipe body, the valve core assembly is arranged inside the valve sleeve away from the pipe body, a gas guide channel is arranged in the valve sleeve, the vacuum pipe is arranged inside the pipe body, one end of the vacuum pipe is arranged on the side wall of the end of the pipe body away from the valve sleeve, the other end of the vacuum pipe is communicated with the gas guide channel through the gravity blocking part, the gravity blocking part is separated from the gas guide channel when the oil nozzle of the oil gun is downward, and the gravity blocking part blocks the gas guide channel when the oil nozzle of the oil gun is upward.

3. The no-drip filler neck for a fuel dispenser with ORVR functionality of claim 2, wherein, The diameter of the accommodating cavity is larger than that of the vacuum pipe, the inner wall of the end of the accommodating cavity close to the gas guide channel is in a conical cylinder shape, and the gravity blocking part is a sphere.

4. The no-drip filler neck for a fuel dispenser with ORVR functionality of claim 1, wherein, The insertion end of the valve sleeve extends into the pipe body, and the diameter of the inner wall of the insertion end gradually increases from the inside of the valve sleeve to the inside of the pipe body.

5. The no-drip filler neck for a fuel dispenser with ORVR functionality of claim 4, wherein, The inner wall of the pipe body smoothly extends from the end close to the valve sleeve to the end away from the valve sleeve.

6. The no-drip filler neck for a fuel dispenser with ORVR functionality of claim 1, wherein, The oil injection pipe is arranged at one end of the pipe body, the other end of the oil injection pipe is connected with the valve sleeve, and the inner wall of the oil injection pipe smoothly extends from the end close to the valve sleeve to the end away from the valve sleeve.

7. The no-drip filler neck for a fuel dispenser with ORVR functionality of claim 1, wherein, The gas cover is arranged outside the pipe body.

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