Intelligent anti-dragging refueling device

Abstract

An oil gun is connected with an oiling machine through an oil pipe, an oil outlet pipe of the oil gun is sleeved with a freely-telescopic air bag, the air bag is connected with an air tank through an air pipe, the air tank provides filling gas for the air bag, and the outer diameter of the air bag is larger than the diameter of an automobile oil filling port; the camera is used for monitoring the states of the oil gun and the automobile; and the control device is connected with the camera and used for controlling opening and closing of the gas tank valve. By monitoring the states of the oil gun and the automobile, the connection between the oil gun and the automobile and a switch of an oil way are disconnected while alarming is performed, so that dragging accidents are effectively prevented, damage to refueling equipment or the automobile after the automobile is started without pulling out the oil gun is prevented, pollution and waste caused by overflow of more oil are avoided, and the labor intensity of accident handling is reduced; flame-retardant filling gas and an elastic contact push plate are used for preventing oil fire caused by friction in the contact process; the structure is simple, operation is convenient, protection is efficient, and normal refueling work is not affected.

Description

Technical Field

[0001] The invention relates to a refueling device, and in particular to an intelligent anti-drag refueling device. Background Art

[0002] When the car is refueling or charging, the refueling or charging gun is usually inserted diagonally downward on the car's refueling port or power plug. After recharging the car, the staff or driver sometimes forgets to unplug the refueling gun or charging gun. When the car is started, the refueling or charging gun will be hung on the car and not easy to fall off. As the car moves away, it is easy to break the refueling pipe or cable, or pull down the refueling machine or charging pile. The rebound of the oil gun or charging gun can easily cause casualties, oil spills or leakage, and fires and other safety accidents. At present, there are many technologies for anti-drag of new energy vehicle charging piles, but the refueling machine considers safety factors while considering the anti-drag function. Some anti-drag devices have a relatively complex structure, which will cause certain damage to the refueling machine equipment, and some may even cause certain dangers. For example, some anti-drag devices use tools such as springs, which are prone to rigid collision and friction to produce sparks and cause fires. Summary of the invention

[0003] Purpose of the invention: The purpose of the present invention is to provide an intelligent anti-drag refueling device to prevent safety accidents caused by the oil gun not being taken out while the car is started.

[0004] Technical solution: The intelligent anti-drag refueling device described in the present invention includes a fuel gun, a fuel pipe and a refueling machine. A freely retractable airbag is mounted on the oil outlet pipe of the fuel gun. The airbag is connected to a gas tank that provides filling gas for the airbag through an air pipe. The outer diameter of the airbag is larger than the diameter of the automobile refueling port. It also includes a camera for monitoring the status of the fuel gun and the automobile, and a control device connected to the camera for controlling the opening and closing of the gas tank valve.

[0005] Furthermore, after the airbag is fully deployed, the diagonal length of the oil outlet pipe not covered by the airbag (i.e., the front projection of the length direction of the uncovered pipe is a rectangle, and the diagonal refers to the diagonal of the rectangle) is less than the diameter of the fuel port, further ensuring that the fuel gun can quickly detach from the fuel port of the car. After the camera detects that the status of the fuel gun and the car is abnormal, the control device opens the gas tank valve to quickly inflate the airbag, pushing the fuel gun away from the fuel port of the car to prevent safety accidents.

[0006] Furthermore, the control device is also connected to the oil circuit switch of the fuel dispenser, and the oil outlet of the fuel dispenser is closed at the same time after the drag mechanism is triggered, so as to prevent more oil from flowing out and causing pollution and waste, and reduce the labor intensity of accident handling. The control device also includes an alarm module. When the camera detects that the status of the fuel gun and the car is abnormal, an alarm is issued to remind personnel to stop the car and leave in time, so as to further prevent accidents. The control device is provided with three monitoring modes: normal operation mode, early warning mode and anti-drag mode. The control device monitors the refueling area through a camera. When the car enters the refueling area and stops steadily, and the refueling gun is inserted into the refueling port of the car, the control device simultaneously monitors that the car and the oil gun have no displacement and the oil circuit is unobstructed, and the control device displays a normal operation mode; when the oil circuit is unobstructed, the oil gun has no displacement and the car is displaced, the control device sends an alarm through the early warning module to start the early warning mode; when the oil circuit is unobstructed, the oil gun has no displacement and the car is displaced by a distance exceeding a set distance (this distance must be less than the length of the oil pipe, and the connection between the oil gun and the car is cut off before the oil pipe is dragged), the control device starts the anti-drag mode, disconnects the oil circuit of the refueling machine, and opens the gas tank valve at the same time to make the oil gun fall off the car, and sends an alarm.

[0007] Furthermore, a push plate is sleeved on the front end of the oil outlet pipe to promote the oil gun to separate from the fuel filling port. The push plate is fixedly connected to the air bag and is made of elastic material. The push plate is in elastic contact with the fuel filling port of the car, which increases the force between the air bag and the fuel filling port of the car, increases the speed of the oil gun to separate from the fuel filling port of the car, and ensures the effective operation of the anti-drag mechanism. The push plate has weak rigidity, which can avoid friction caused by hard contact with the fuel filling port of the car, which may cause oil fire.

[0008] Furthermore, the gas tank is filled with flame-retardant gas, which meets the gas station's requirements for safe operation and prevents oil fire caused by friction during the process of gas filling the airbag.

[0009] Furthermore, the gas tank is arranged in the fuel dispenser, the fueling device does not require major changes, has a simple structure, does not require additional planning for placement space, is easy to operate, and does not affect the normal progress of the fueling work.

[0010] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: 1. The monitoring device monitors the status of the oil gun and the car, and promptly disconnects the connection between the oil gun and the car and the switch of the oil circuit while giving an alarm, thereby effectively preventing the occurrence of dragging accidents; 2. The oil gun is separated from the car refueling port in time, effectively preventing damage to the refueling equipment or the car after the car is started without pulling out the oil gun; 3. It avoids more oil overflow to cause pollution and waste, and reduces the labor intensity of accident handling; 4. The flame-retardant filling gas and the elastic contact push plate prevent the oil from catching fire due to friction during the contact process; 5. It has a simple structure, convenient operation, efficient protection, and does not affect normal refueling work. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the present invention;

[0012] Figure 2 It is a schematic diagram of the oil gun of the present invention in a normal state;

[0013] Figure 3 It is a schematic diagram of the state after the oil gun anti-drag mechanism of the present invention is triggered. DETAILED DESCRIPTION

[0014] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0015] Example 1

[0016] like Figure 1 As shown in the figure, a smart anti-drag refueling device, a fuel gun 1 is connected to a refueling machine 2 through a fuel pipe 4, a gas tank 5 is arranged in the refueling machine 2, and a flame retardant gas is filled in the gas tank 5; Figure 2 As shown, a freely retractable airbag 12 is sleeved on the oil outlet pipe 11 of the oil gun 1, and the airbag 12 is connected to the gas tank 5 through the air pipe 3. The outer diameter of the airbag 12 is larger than the diameter of the automobile refueling port. After the airbag 12 is fully opened, the diagonal length of the oil outlet pipe 11 not covered by the airbag 12 is smaller than the diameter of the refueling port. The camera 6 for monitoring the status of the oil gun 1 and the automobile is arranged on the top of the refueling machine 2, and the control device controls the opening and closing of the oil circuit switch of the gas tank 5 and the refueling machine 2 through the monitoring status of the camera 6. The control device has three monitoring modes: normal operation mode, early warning mode and anti-drag mode.

[0017] Example 2

[0018] Different from the first embodiment, a push plate 13 is sleeved on the front end of the air bag 12 on the oil outlet pipe 11 to promote the oil gun 1 to be separated from the oil filling port. The push plate 13 is fixedly connected to the air bag 12 and is made of elastic material.

[0019] Example 3

[0020] Different from Embodiments 1 and 2, the anti-drag device can also be applied to charging piles.

[0021] like Figure 2As shown, during normal refueling, the airbag 12 is in a contracted state, the valve of the air pipe 3 is tightly closed, the oil gun 1 is removed and the oil outlet pipe 11 is tilted downward and inserted into the refueling port of the car, and the push plate 13 (or the front end of the airbag 12) is close to the car refueling port for refueling. The control device has three monitoring modes: normal operating mode, early warning mode and anti-drag mode. The control device monitors the refueling area through the camera 6. When the car enters the refueling area and stops, and the oil gun 1 is inserted into the car refueling port, the control device simultaneously monitors that the car has no displacement, the oil gun 1 has no displacement, and the oil circuit is unobstructed. The control device displays the normal operating mode; when the oil circuit is unobstructed, the oil gun 1 has no displacement, and the car has displaced, the control device sends an alarm through the early warning module to start the early warning mode; if Figure 3 As shown, when the oil circuit is unblocked, the oil gun 1 has no displacement and the displacement distance of the car exceeds the set distance (this distance must be less than the length of the oil pipe 4, and the connection between the oil gun 1 and the car is cut off before the oil pipe 4 is dragged), the control device starts the anti-drag mode, opens the valve of the gas tank 5, and the high-pressure gas quickly fills the airbag 12 through the air pipe 3 to make it expand along the oil outlet pipe 11 toward the car refueling port. Since the outer diameter of the push plate 13 or the airbag 12 is larger than the diameter of the car refueling port, the oil outlet pipe 11 quickly separates from the car refueling port during the expansion process, causing the oil gun 1 to fall off the car to prevent the oil gun 1 from hanging on the car refueling port and pulling it to break the oil pipe 4, air pipe 3 or pulling down the refueling machine 2 to cause a safety accident; at the same time, the oil circuit switch of the refueling machine 2 is disconnected to prevent more oil from overflowing to cause pollution and waste, and an alarm is sounded.

Claims

1. An intelligent anti-drag refueling device, comprising a refueling gun (1), a refueling pipe (4) and a refueling machine (2), characterized in that: The oil outlet pipe (11) of the oil gun (1) is sleeved with a freely retractable air bag (12), the air bag (12) is connected to a gas tank (5) for providing filling gas via an air pipe (3), and the outer diameter of the air bag (12) is larger than the diameter of the fuel filling port of the vehicle; the device also includes a camera (6) for monitoring the status of the oil gun (1) and the vehicle, and a control device connected to the camera (6) for controlling the opening and closing of the valve of the gas tank (5).

2. The intelligent anti-drag refueling device according to claim 1, characterized in that: After the airbag (12) is fully deployed, the diagonal length of the oil outlet pipe (11) not covered by the airbag (12) is smaller than the diameter of the oil filling port.

3. The intelligent anti-drag refueling device according to claim 1, characterized in that: The control device is also connected to the oil circuit switch of the fuel dispenser (2).

4. The intelligent anti-drag refueling device according to claim 3, characterized in that: The control device also includes an alarm module.

5. The intelligent anti-drag refueling device according to claim 4, characterized in that: The control device is provided with three monitoring modes: normal operation mode, early warning mode and anti-drag mode.

6. The intelligent anti-drag refueling device according to claim 1, characterized in that: A push plate (13) is sleeved on the oil outlet pipe (11) and the front end of the air bag (12) to promote the oil gun (1) to separate from the oil filling port, and the push plate (13) is fixedly connected to the air bag (12).

7. The intelligent anti-drag refueling device according to claim 6, characterized in that: The push plate (13) is made of elastic material.

8. The intelligent anti-drag refueling device according to claim 1, characterized in that: The gas tank (5) is filled with flame retardant gas.

9. The intelligent anti-drag refueling device according to claim 1, characterized in that: The gas tank (5) is arranged in the fuel dispenser (2).

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