JP3045462B2 - Oil mixing device at unloading at gas station - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for preventing oil mixture when unloading from a tank truck to an underground tank.

[0002]

2. Description of the Related Art The inside of a tank of a tank truck that transports oil to a gas station or the like is divided into a plurality of chambers, and different types of oil are often loaded in each of the compartments.

For example, when regular, high octane, light oil, kerosene, etc. are loaded on a single tank truck, at the gas station, underground tanks and the like are refueled according to their oil types when unloading. If not, it is dangerous.

In view of the above, a conventional means for unloading has been performed by artificially checking an oil type tag provided on a tank lorry bottom valve valve or the like with an oil type plate at a gas station.

[0005] However, since such a checking means largely depends on human memory, there is no end to oil mixing in the tank due to checking mistakes or incorrect memory.

Therefore, conventionally, an oil-mixing prevention device using a key (Japanese Patent Application Laid-Open No. 60-172699,
Japanese Patent Application Laid-Open No. 4-111798) and an oil-mixing prevention device by sounding a buzzer when a metal fitting is erroneously tightened have been considered.

[0007]

However, all of these devices require complicated operations, which may cause confusion. In addition, the cost is high, and a device that is inexpensive and has good workability has been desired.

The problem to be solved by the present invention is to prevent oil mixture without requiring electricity or complicated mechanisms.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an oil-mixing prevention device at the time of unloading at a gas station according to the present invention displays an oil type or a code indicating an oil type on a lubrication fitting of the gas station. Pivoted oil seed plate,
A ring that presses the base end of the oil seed plate is loosely fitted to the lubrication fitting, and presses the base end of the oil seed plate through the ring when a lorry fitting is connected to the lubrication fitting. The oil type plate rises and the oil type display is in the field of view.
It is configured to get up at the position where it enters .

A bar code can be used as the code indicating the oil type.

At the same time that the lorry fitting is tightened to the lubrication fitting, the ring is pressed, and the base of the oil seed plate is pressed by the ring, so that the oil seed plate stands upright and the oil type is displayed in the field of view. It will be done, and you can confirm the oil type of the tied tank. When a bar code is used as the code indicating the oil type, the oil type is read using a bar code reader, and the signal obtained from this turns on the oil type indicator light or opens or closes the valve for the oil type on a lorry vehicle. I do.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to embodiments shown in the drawings. FIG. 1 shows the first embodiment of the present invention.
In the embodiment, reference numeral 1 denotes a lubricating hole fitting, and 2 denotes a lorry fitting provided at a tip of a lorry hose of a tank truck. An arm 3 is provided on the side of the lubrication fitting 1, and an oil seed plate 5 is pivotally attached to a shaft 4 provided on the arm 3.
Further, a claw 7 is attached to the lorry fitting 2 by a shaft 6, and when tightened to the lubrication fitting 1, the tip 7 a of the claw 7 engages with the flange 1 a of the lubrication fitting 1 and is locked. It has become so. Further, a ring 8 is attached to the lubrication fitting 1 so as to be movable up and down.
The base end of the oil seed plate 5 is provided.

FIG. 1A shows a state in which the lubrication hole fitting 1 and the lorry fitting 2 are separated from each other. In this state, the oil seed plate 5 is in the vertical direction due to its own weight or the urging force of a spring (not shown). . Next, when the lorry fitting 2 is mounted as shown in FIG. 2B, the tip 7a of the claw 7 pushes the ring 8, and the ring 8 pushes the base end of the oil seed plate 5 to raise the oil seed plate 5. When the lorry fitting 2 is completely tightened, the tip 7a of the claw 7 presses the base end of the oil seed plate 5 via the ring 8 as shown in FIG. Become. As a result, the oil type indication of the oil type plate 5 is displayed even if the person in charge of connecting the lorry fitting 2 is unwilling to view the oil type.

The reason why the ring 8 is attached to the outer periphery of the lubrication fitting 1 is to ensure that the oil seed plate 5 can be raised regardless of the position of the lorry fitting 2 connected to the lubrication fitting 1 at any position. is there.

When a bar code is used as a code indicating the oil type to be displayed on the oil type plate 5, the oil type is read using a bar code reader, and a signal obtained from the bar code reader turns on the oil type indicator light. Alternatively, the valve of the corresponding oil type of the lorry car is opened and closed.

FIGS. 2 and 3 show a bar code reader 21.
2 shows a control system diagram of the signal read in the above, 22 is a control panel, 23 is an oil type indicator light, 31 is a solenoid valve for controlling oil discharge of each tank of a lorry vehicle, 32 is a lorry hose 33
A solenoid valve for refueling the fuel tank 34 is a refueling port.

At the time of refueling from the lorry tank, when the bar code indicating the oil type displayed on the oil type plate 5 is read by the bar code reader 21, the control panel 22 outputs an electric signal corresponding to the oil type. And the indicator lamp 23 corresponding to the oil type is turned on. Next, the solenoid valve 31 corresponding to the oil type is opened, and the oil supply is enabled. By operating a pump (not shown), refueling of the underground tank is performed.

[0018]

As described above, according to the present invention, the following effects can be obtained.

(1) The oil type is displayed in the field of view at the same time as the connection with the lubrication fitting, so that the impact is very strong and the effect of confirming the oil type is great.

(2) The invention can be applied by only partially changing the lubrication fitting, and there is no complicated unloading work.

(3) It does not use any electricity, does not require explosion-proof construction, and is very safe.

(4) Since there are no system elements, the cost is low.

(5) By using a barcode as a code representing the oil type, the barcode can be read by a barcode reader, and the refueling hose can be reliably refueled.

[Brief description of the drawings]

FIG. 1 is a process diagram showing a state of binding of a lorry fitting and oil type indication in an embodiment of the present invention.

FIG. 2 is a processing system diagram of a signal read by a bar code reader 21.

FIG. 3 is a processing system diagram of a signal read by a bar code reader 21.

[Explanation of symbols]

1 Lubrication fittings, 2 lorry fittings, 3 arms, 4
Shaft, 5 oil type plates, 6 axes, 7 claws, 8 rings,
21 bar code reader, 22 control panel, 23 oil type indicator light, 31, 32 solenoid valve, 33 lorry hose, 34 oil filler

Claims (2)

(57) [Claims] An oil type plate having an oil type or a code indicating the oil type is pivotally connected to an oil inlet of a gas station, and a ring for pressing a base end of the oil type plate is loosely attached to the oil inlet. When the lorry fitting is connected to the lubrication fitting, the base end of the oil seed plate is pressed via the ring to place the oil seed plate in a position where the oil seed display is within the field of view. Oil- mixing prevention device for unloading at a gas station that is configured to rise up . 2. The device for preventing oil mixture at the time of unloading at a gas station according to claim 1, wherein the code indicating the oil type is a bar code.