Oil gun

Abstract

The utility model relates to the technical field of oil guns, and provides an oil gun which comprises a gun body, the gun body is provided with an inner cavity, a gun barrel is arranged at the front end of the gun body, a trigger is arranged at the rear end of the gun body, the gun barrel is provided with a plurality of oil gas ports, and one side, away from the gun barrel, of the gun body is connected with an oil gas recovery device. An anti-oil-spilling cover used for preventing fuel oil from spilling is arranged at the connecting position of the gun body and the gun barrel, the anti-oil-spilling cover extends towards the fuel oil port, a magnetic attraction ring is fixedly connected to the side, facing the oil gas port, of the anti-oil-spilling cover, the anti-oil-spilling cover is provided with a vent hole, and the vent hole is located in the top of the anti-oil-spilling cover. By means of the technical scheme, the problems that in the prior art, when an oil gun breaks down and cannot automatically stop oil injection, gasoline cannot be prevented from overflowing, gasoline flows out of an oil tank and is wasted, and meanwhile the overflowing gasoline can corrode an automobile and damage the outer surface of the automobile are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of oil gun, specifically, and relates to an oil gun. BACKGROUND

[0002] The oil gun is an important device for fuel injection in a vehicle at a gas station, which is connected with the pipeline of the oil dispenser to control the fuel flow and realize safe and accurate delivery of fuel into the vehicle tank. The traditional oil gun has a simple structure and mainly relies on manual control switch to adjust the fuel injection amount, which is convenient to operate and low in cost. However, with the improvement of environmental protection requirements and the promotion of gas station automation, the design of modern oil guns tends to be automated and intelligent.

[0003] The oil gun with oil vapor recovery function further improves the design of the traditional oil gun. In addition to the basic fuel delivery function, it also increases the oil vapor recovery system. During the oiling process, the oil vapor volatilization in the tank will cause the emission of volatile organic compounds (VOCs). These harmful gases not only pollute the environment, but also pose a safety hazard. The oil vapor recovery oil gun can capture the oil vapor volatilized in the tank and transport it back to the recovery system for treatment through the gas collector or other designs, reducing air pollution and improving energy utilization efficiency. This design makes the oiling process more environmentally friendly and efficient, and has become a standard configuration of modern gas stations.

[0004] However, there are still some technical problems to be solved in the existing oil gun. In particular, when the oil gun fails, the automatic stop fueling function may fail, causing fuel to continue to be injected into the tank, eventually causing the tank to be overfilled. At this time, the oil gun cannot effectively detect and stop fueling, and the fuel will overflow from the tank and flow out to the surrounding area and the ground of the vehicle, not only causing resource waste, but also possibly causing safety hazards. The spilled fuel is also highly corrosive to the exterior surface of the vehicle, and long-term contact can damage the paint and metal structure of the vehicle, affecting the appearance and service life of the vehicle. SUMMARY

[0005] The utility model provides the oil gun that can prevent fuel from overflowing from the tank to control oil spillage and protect the vehicle when the oil gun fails.

[0006] The technical scheme of the utility model is as follows:

[0007] The oil gun comprises a gun body, the gun body is provided with an inner cavity, the front end of the gun body is provided with a barrel, the rear end of the gun body is provided with a trigger, the barrel is provided with a plurality of oil and gas ports, the side of the gun body away from the barrel is connected with an oil vapor recovery device, the connection part of the gun body and the barrel is provided with an anti-overflow oil cover for preventing fuel overflow, the anti-overflow oil cover extends towards the fuel port, the side of the anti-overflow oil cover facing the oil and gas port is fixedly connected with a magnetic ring, the anti-overflow oil cover is provided with a ventilation hole, and the ventilation hole is located at the top of the anti-overflow oil cover.

[0008] Further, the anti-overflow oil cover comprises a plurality of folded layers, the diameters of the plurality of folded layers are gradually increased, the largest diameter folded layer is located at the side of the anti-overflow oil cover close to the oil and gas port, and the smallest diameter folded layer is located at the connection between the anti-overflow oil cover and the gun body.

[0009] Further, the anti-overflow oil cover is provided with a one-way air valve at the connection with the gun body, the one-way air valve is fixedly connected with the anti-overflow oil cover, the air inlet of the one-way air valve is away from the anti-overflow oil cover, the air outlet of the one-way air valve is located in the anti-overflow oil cover, and the air outlet of the one-way air valve is connected with the air hole.

[0010] Further, the anti-overflow oil cover comprises an outer sleeve part and a sealing part, the outer sleeve part is connected with the sealing part, the outer sleeve part is detachably connected with the gun body, the sealing part is slidably connected with the gun barrel, the sealing part is located at one end of the outer sleeve part towards the oil and gas port, the magnetic ring is fixedly connected with the sealing part, and the outer sleeve part and the sealing part are both provided with air holes close to the top of the gun barrel.

[0011] Further, the sealing part is recessed into the outer sleeve part, and the hardness of the sealing part is greater than that of the outer sleeve part.

[0012] Further, the gun body is provided with a threaded fixing cylinder at the connection with the gun barrel, the side of the anti-overflow oil cover towards the gun body is provided with a threaded sleeve, and the anti-overflow oil cover is connected with the gun body through the threaded connection of the threaded sleeve and the threaded fixing cylinder.

[0013] The working principle and beneficial effects of the utility model are as follows:

[0014] The anti-overflow oil cover is used in cooperation with the magnetic ring to form a stable sealing structure, so that fuel is not easily spilled when the fueling gun fails. Even if the fueling gun cannot automatically stop fueling, the anti-overflow oil cover can effectively control the leakage of excess fuel, preventing waste of fuel.

[0015] Spilled fuel often causes corrosion to the outer surface of the vehicle, especially the paint and metal surface. Through the design of the anti-overflow oil cover, direct contact of fuel with the surface of the vehicle can be prevented, damage to the vehicle caused by fuel corrosion can be avoided, and the service life of the vehicle paint can be prolonged.

[0016] The oil and gas port and the oil and gas recovery device work in cooperation to timely capture and recover and process the spilled oil and gas during the fueling process. This reduces pollution to the environment and prevents safety problems that may be caused by the accumulation of oil and gas in the air of the gas station.

[0017] The air holes on the anti-overflow oil cover ensure the balance of the air pressure inside and outside the fuel tank during the fueling process, avoiding the situation that the fueling speed is slowed down or fuel is spilled due to internal pressure problems during fueling. This improves the fueling efficiency and ensures the safety of the fueling operation. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0020] Fig. 2 This is a side view of the present invention;

[0021] Fig. 3 This is a schematic diagram of the oil spill containment structure in this utility model;

[0022] Fig. 4 This is a front view of the oil spill prevention cover in this utility model.

[0023] In the diagram: 1. Gun body; 2. Gun barrel; 3. Trigger; 4. Oil spill cover; 5. One-way gas valve; 11. Threaded retaining sleeve; 21. Oil and gas port; 41. Outer sleeve; 42. Sealing part; 43. Magnetic ring; 44. Vent hole; 45. Threaded sleeve; 411. Folding layer. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0025] like Figs. 1-4 As shown, this embodiment proposes a refueling nozzle, including a nozzle body 1, an inner cavity, a nozzle barrel 2 at the front end of the nozzle body 1, a trigger 3 at the rear end of the nozzle body 1, a plurality of oil and gas ports 21 at the nozzle barrel 2, an oil and gas recovery device connected to the side of the nozzle body 1 away from the nozzle barrel 2, an oil spill cover 4 for preventing fuel spillage at the connection between the nozzle body 1 and the nozzle barrel 2, the oil spill cover 4 extending towards the fuel ports, a magnetic ring 43 fixedly connected to the side of the oil spill cover 4 facing the oil and gas ports 21, and a vent hole 44 at the top of the oil spill cover 4.

[0026] The gun body 1 is the core part of the refueling gun, containing internal control devices and fuel delivery systems, and controlling the refueling process through the trigger 3. The inner cavity is used to contain and guide the fuel through the refueling gun, providing a channel for fuel flow, ensuring that the fuel flows from the refueling machine to the barrel 2, and ensuring the stability and smoothness of the refueling process. The barrel 2 is the path of fuel output, connecting the tank mouth and the gun body 1, and guiding the fuel into the vehicle tank. By manually operating the trigger 3, the flow of fuel and the opening or closing of the refueling gun are controlled. The oil and gas port 21 on the barrel 2 is used to discharge or recover volatile oil and gas in the tank. It is connected to the side of the gun body 1 away from the barrel 2, and is specially used to recover the oil and gas overflowing in the tank and deliver it to the recovery system of the gas station. The anti-overflow cover 4 is installed at the connection between the gun body 1 and the barrel 2, which is used to prevent excessive fuel overflow during refueling. Through the anti-overflow cover 4, fuel overflow to the outside of the tank during refueling can be effectively prevented, waste of fuel can be avoided, and corrosion of the overflow fuel to the exterior of the car can be prevented, protecting the appearance and structure of the car. At the same time, the anti-overflow cover 4 has the function of capturing volatile oil and gas, limiting the volatile oil and gas in the tank, so that these oil and gas can be recovered by the oil and gas recovery device to the recovery system of the gas station through the oil and gas port 21. The close connection between the anti-overflow cover 4 and the tank of the vehicle can greatly improve the efficiency of oil and gas recovery. The magnetic ring 43 is fixedly connected to the side of the anti-overflow cover 4 facing the oil and gas port 21, which is used to provide a stable sealing effect. The magnetic ring 43 can ensure that the anti-overflow cover 4 is closely attached to the tank mouth of the vehicle, forming a reliable seal, avoiding fuel leakage during refueling, and enhancing the efficiency of oil and gas recovery. The air vent 44 is arranged at the top of the anti-overflow cover 4, which is used to maintain the internal air pressure balance during refueling. The air vent 44 allows air to enter to balance the pressure, prevents negative pressure from forming in the tank, ensures smooth refueling, and avoids safety hazards caused by fuel overflow. Arranging the air vent 44 at the top of the anti-overflow cover 4 can prevent the overflowing fuel from flowing out of the air vent 44, thereby causing the anti-overflow cover 4 to fail to achieve its anti-overflow function.

[0027] In this embodiment, the anti-overflow cover 4 includes a plurality of folded layers 411, the diameters of the plurality of folded layers 411 increase continuously, the largest diameter folded layer 411 is located on the side of the anti-overflow cover 4 close to the oil and gas port 21, and the smallest diameter folded layer 411 is located at the connection between the anti-overflow cover 4 and the gun body 1. The magnetic ring 43 is located on the largest diameter folded layer 411.

[0028] The design of the folded layer 411 can increase the flexibility and adaptability of the anti-overflow cover 4, so that it can adaptively adjust according to the size and shape of different vehicle tank mouths. At the same time, the structure of the folded layer 411 can enhance the elasticity and pressure resistance of the anti-overflow cover 4 while maintaining the sealing property, effectively preventing oil leakage caused by pressure changes during refueling.

[0029] In this embodiment, the anti-overflow oil cover 4 is provided with a one-way air valve 5 at the connection with the gun body 1. The one-way air valve 5 is fixedly connected with the anti-overflow oil cover 4, the air inlet of the one-way air valve 5 faces away from the anti-overflow oil cover 4, the air outlet of the one-way air valve 5 is located inside the anti-overflow oil cover 4, and the air outlet of the one-way air valve 5 is connected with the air vent hole 44.

[0030] The design of the one-way air valve 5 ensures that during refueling, external air can enter the oil tank to maintain the pressure balance inside and outside the oil tank. At the same time, the one-way air valve 5 prevents the leakage of gas and fuel inside the oil tank, preventing the overflow of fuel through the air valve, enhancing the safety and environmental protection of the refueling process. This design can effectively prevent environmental pollution and resource waste caused by oil leakage.

[0031] In this embodiment, the anti-overflow oil cover 4 includes a sleeve part 41 and a sealing part 42. The sleeve part 41 is connected with the sealing part 42, the sleeve part 41 is detachably connected with the gun body 1, the sealing part 42 is slidingly connected with the barrel 2, the sealing part 42 is located at one end of the sleeve part 41 facing the oil and gas port 21, a magnetic ring 43 is fixedly connected with the sealing part 42, and the sleeve part 41 and the sealing part 42 are both provided with air vent holes 44, which are close to the top of the barrel 2.

[0032] The detachable connection of the sleeve part 41 with the gun body 1 and the sliding connection of the sealing part 42 with the barrel 2 increase the flexibility and stability of the anti-overflow oil cover 4. The sliding sealing part 42 allows the refueling gun to automatically adjust the position of the anti-overflow oil cover 4 during refueling, ensuring the sealing effect with the oil tank port, while reducing structural wear caused by operation, improving the durability of the anti-overflow oil cover 4.

[0033] In this embodiment, the sealing part 42 is recessed into the sleeve part 41, and the hardness of the sealing part 42 is greater than that of the sleeve part 41.

[0034] The greater hardness of the sealing part 42 ensures stability and pressure resistance at the sealing position, and can withstand external pressure without deformation. At the same time, the softer material of the sleeve part 41 enhances flexibility, allowing it to better adapt to the shape of the oil tank port, further improving the sealing and applicability of the refueling gun.

[0035] In this embodiment, a threaded fixing cylinder 11 is provided at the connection between the gun body 1 and the barrel 2, and a threaded sleeve 45 is provided on the side of the anti-overflow oil cover 4 facing the gun body 1. The anti-overflow oil cover 4 is connected with the gun body 1 through the threaded connection of the threaded sleeve 45 and the threaded fixing cylinder 11.

[0036] The threaded design provides a reliable mechanical connection method, ensuring the tight connection of the anti-overflow oil cover 4 with the main body of the refueling gun, increasing the stability of the structure. At the same time, the threaded connection facilitates the disassembly and replacement of the anti-overflow oil cover 4, simplifying the maintenance process and increasing the service life of the overall system.

[0037] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A refueling gun comprising a gun body (1) provided with an inner cavity, a gun barrel (2) provided at the front end of the gun body (1), a trigger (3) provided at the rear end of the gun body (1), and a plurality of oil and gas outlets (21) provided on the gun barrel (2), and an oil and gas recovery device connected to the side of the gun body (1) away from the gun barrel (2), characterized in that, The gun body (1) and the barrel (2) are connected with an anti-overflow cover (4) for preventing fuel overflow, the anti-overflow cover (4) extends to the fuel port, the side of the anti-overflow cover (4) towards the oil gas port (21) is fixedly connected with a magnetic ring (43), the anti-overflow cover (4) is provided with a vent hole (44), and the vent hole (44) is located at the top of the anti-overflow cover (4).

2. The fueling gun of claim 1, wherein, The anti-overflow cover (4) comprises a plurality of folding layers (411), the diameters of the plurality of folding layers (411) are continuously increased, the folding layer (411) with the largest diameter is located at the side of the anti-overflow cover (4) close to the oil gas port (21), and the folding layer (411) with the smallest diameter is located at the connection position of the anti-overflow cover (4) and the gun body (1).

3. The fueling gun of claim 1 or 2, wherein, The anti-overflow cover (4) is provided with a one-way air valve (5) at the connection position of the anti-overflow cover (4) and the gun body (1), the one-way air valve (5) is fixedly connected with the anti-overflow cover (4), the air inlet of the one-way air valve (5) is away from the anti-overflow cover (4), the air outlet of the one-way air valve (5) is located in the anti-overflow cover (4), and the air outlet of the one-way air valve (5) is connected with the vent hole (44).

4. The fueling gun of claim 1, wherein, The anti-overflow cover (4) comprises an outer sleeve portion (41) and a sealing portion (42), the outer sleeve portion (41) is connected with the sealing portion (42), the outer sleeve portion (41) is detachably connected with the gun body (1), the sealing portion (42) is slidably connected with the barrel (2), the sealing portion (42) is located at one end of the outer sleeve portion (41) towards the oil gas port (21), the magnetic ring (43) is fixedly connected with the sealing portion (42), and the outer sleeve portion (41) and the sealing portion (42) are both provided with the vent hole (44), and the vent holes (44) are both close to the top of the barrel (2).

5. The fueling gun of claim 4, wherein, The sealing portion (42) is recessed into the outer sleeve portion (41), and the hardness of the sealing portion (42) is greater than that of the outer sleeve portion (41).

6. The fueling gun of claim 4, wherein, The gun body (1) and the barrel (2) are connected with a threaded fixing cylinder (11), the side of the anti-overflow cover (4) towards the gun body (1) is provided with a threaded sleeve (45), and the anti-overflow cover (4) is connected with the gun body (1) through the threaded connection of the threaded sleeve (45) and the threaded fixing cylinder (11).

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