Anti-pulling oil filling pipe

Abstract

The utility model discloses an anti-pulling oil filling pipe. According to the technical scheme, the oil filling pipe of an oiling machine is divided into two sections; the tail end of the first-section oil pipe is connected with the head end of the second-section oil pipe; the tail end of the second oil pipe is connected with an oil gun. The tail end of the first section of oil pipe is connected with the head end of the second section of oil pipe through a double-self-sealing quick connector. In the refueling process, when a refueling worker does not take down a refueling gun from a vehicle and a driver directly drives away the vehicle, under the action of the strong pulling force of the vehicle and when the pulling force is larger than or equal to a specified value, the two sections of oil pipes can be rapidly pulled open from the double-self-sealing quick connector, and therefore the refueling gun can be rapidly taken away. At the moment, the automatic stop valve element in the double-self-sealing quick connector can quickly block the oil inlet and outlet and prevent fuel oil from flowing, and therefore the accidents that the oiling machine is pulled to incline and fall to the ground, and fuel oil leaks are prevented from happening.

Description

Technical Field

[0001] The present technology belongs to the field of preventing a gas station refueling machine from being pulled and falling to the ground, and specifically involves a refueling pipe structure, a double self-sealing quick connector (hereinafter referred to as a quick connector), a refueling gun, etc. Background Art

[0002] When refueling at a gas station or after refueling, some car owners forget to take the fuel gun off the car and put it back on the gas pump and drive away directly, which causes the gas pump to tilt and fall to the ground under the strong pulling force of the car, fuel leakage and other accidents. In order to solve this problem, this technology is specially invented. Summary of the invention

[0003] The main content of this technology is to provide an anti-pull refueling pipe.

[0004] The main problems solved by the present invention are:

[0005] 1. Solve the problem that during the refueling process, some car owners forget to remove the fuel gun from the car and put it back on the fuel pump and drive away directly, causing the fuel pump to tilt and fall to the ground under the strong pulling force of the car.

[0006] 2. To solve the problem that during the refueling process, some car owners forget to remove the fuel gun from the car and put it back on the gas pump and drive away directly, causing the gas pump's refueling pipe to be pulled off, thus causing a fuel leakage accident.

[0007] 3. The advantages of the present invention are: simple structure, easy technical implementation, and strong feasibility of the technical solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 ——The location of the fuel dispenser, fuel pipe, and quick connector connection

[0009] Figure 2 ——The structure of the second oil

[0010] Figure 3 ——Connection method of the first section of oil pipe and the second section of oil pipe with quick connector

[0011] Figure 4 ——How to connect the second section to the fuel gun DETAILED DESCRIPTION

[0012] The scheme adopted by this technology is as follows:

[0013] 1. As Figure 1 As shown, the refueling pipe of the refueling machine is divided into two sections, the first section of the oil pipe is about 30 cm long, the head end is connected to the refueling machine, and the tail end of the second section of the oil pipe is connected to the refueling gun. The tail end of the first section of the oil pipe is connected to the head end of the second section of the oil pipe through a quick connector.

[0014] 2. If Figure 2 As shown, the second section of the refueling pipe is divided into two pipes, the inner pipe and the outer pipe. The outer pipe is thicker, harder, basically non-elastic, and has strong tensile strength. The inner pipe is thinner, softer, and has good elasticity. It is installed in the hole of the outer pipe and can freely extend and slide in the outer pipe. The length is slightly longer than the outer pipe by about 5cm. When the second section of the oil pipe is installed with a quick connector and a refueling gun, the part of the inner pipe that is longer than the outer pipe bends and shrinks in the gap in the hole of the outer pipe.

[0015] 3. The quick connector described in this technology is divided into two parts, namely the male connector and the female connector. The male connector is connected to the tail end of the first section of the oil pipe, and the female connector is connected to the head end of the second section of the oil pipe. There are automatic stop valve cores in both the male and female connectors. According to the actual situation, the force that can pull the male and female connectors of the quick connector apart (that is, the force that pulls the locking slip ring of the female connector) is set to be greater than or equal to 250N (since the technology of double self-sealing quick connectors is very mature and widely used in the industry, this technology will not repeat its structural characteristics and operating principles).

[0016] 4. Such as Figure 3 As shown, the tail end of the first section of the oil pipe is connected to the male connector of the quick connector. The head end of the second section of the oil pipe is connected to the female connector of the quick connector, the inner tube is connected to the oil outlet of the female connector, and the outer tube is connected to the locking slip ring of the female connector.

[0017] 5. As Figure 4 As shown, the tail end of the second section of the oil pipe is connected to the fuel gun, the inner pipe is connected to the oil inlet pipe of the fuel gun, and the outer pipe is connected to the fuel gun housing.

[0018] The principle of this technology to prevent being pulled and falling to the ground is as follows:

[0019] When the owner forgets to take the gas nozzle off the car and put it back on the gas pump while refueling or after refueling and drives away directly, the car will drag the gas nozzle forward.

[0020] (1) The first section of the oil pipe is about 30 cm long, and the tail end of the first section of the oil pipe is connected to the head end of the second section of the oil pipe through a quick connector. This design allows the first section of the oil pipe to bend freely in all directions. When the fuel pipe is pulled by the car, the quick connector is subjected to a straight-line pulling force, making it easier for the male and female connectors of the quick connector to be pulled apart.

[0021] (2) Since the outer tube of the second section of the fuel pipe is slightly shorter than the inner tube, has almost no elasticity, and has strong tensile strength, and the inner tube is slightly longer than the outer tube, is softer, and has good elasticity, under the pulling force of the car, the pulling force of the fuel gun on the second section of the fuel pipe will be reflected in the pulling force of the fuel gun shell on the outer tube. When the pulling force is greater than or equal to 250N, the tail end of the outer tube pulls the locking slip ring of the quick connector, so that the first section of the fuel pipe and the second section of the fuel pipe are quickly separated from the quick connector, thereby avoiding the accident of the fuel dispenser being pulled and tilted to the ground.

[0022] (3) When the two sections of the fuel pipe are pulled apart, the automatic shut-off valve core in the quick connector installed at the ends of the two sections of the fuel pipe immediately blocks the oil inlet and outlet, thereby preventing the occurrence of fuel leakage accidents.

Claims

1. A pull-proof refueling pipe, the main features of which are: the refueling pipe of the refueling machine is divided into two sections; the head end of the first section of the oil pipe is connected to the refueling machine, and the tail end is connected to the head end of the second section of the oil pipe; the tail end of the second section of the oil pipe is connected to the refueling gun; the connection method of the tail end of the first section of the oil pipe and the head end of the second section of the oil pipe is through a double self-sealing quick connector.

2. The anti-pull refueling pipe according to claim 1, characterized in that: The double self-sealing quick connector consists of a male connector and a female connector. Both male and female connectors are equipped with automatic stop valve cores. A locking slip ring is provided on the female connector. Pulling the locking slip ring can pull the male and female connectors apart. The force required to pull the male and female connectors apart should be greater than or equal to 250 Newtons.

3. The anti-pull refueling pipe according to claim 1, characterized in that: The length of the first section of oil pipe is about 30 cm; the tail end is connected to the male connector of the double self-sealing quick connector.

4. The anti-pull refueling pipe according to claim 1, characterized in that: The second section of the oil pipe is divided into an inner tube and an outer tube; the outer tube is thicker, harder, basically inelastic, and has strong tensile strength; compared with the outer tube, the inner tube is thinner, softer, and has good elasticity; the inner tube is installed in the hole of the outer tube, and the inner tube can freely expand and contract and slide in the outer tube; the length of the inner tube is slightly longer than the outer tube by about 5 cm. When the second section of the oil pipe is normally connected to the double self-sealing quick connector and the refueling gun, the part of the inner tube that is longer than the outer tube bends and shrinks in the gap between the inner wall of the outer tube and the outer wall of the inner tube.

5. The anti-pull refueling pipe according to claim 1, characterized in that: The head end of the second section of oil pipe is connected to the female joint of the double self-sealing quick joint, the inner tube is connected to the oil outlet of the female joint, and the outer tube is connected to the locking slip ring of the female joint; the tail end is connected to the refueling gun, the inner tube is connected to the oil inlet pipe of the refueling gun, and the outer tube is connected to the outer shell of the refueling gun.

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