JPH075159B2 - Refueling device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an improvement of a fueling apparatus installed in a gasoline service station of an automobile, which performs a vapor treatment.

[Conventional technology]

In such a refueling device, the vapor discharged from the fuel tank of an automobile or the like at the time of refueling has been conventionally collected by various methods, and as an example thereof, a blower is arranged in a vapor suction pipe having one end opened near the refueling nozzle. , Rotate the blower motor by interlocking with the refueling nozzle
In some cases, the vapor is always forcibly collected when refueling.

[Problems to be solved by the invention]

Such a method is not problematic when a blower is provided for each refueling device, but since a plurality of refueling devices are usually installed at a refueling station, one refueling device is installed for each refueling device. If the blower is shared, each refueling device will be connected by a vapor suction pipe, and as a result, air will be sucked in from this refueling device side even when the other refueling device is not in use when the blower rotates. Therefore, the suction force of the vapor may be weakened and the recovery capability may be reduced.

The object of the present invention is to eliminate the disadvantage of the conventional example, and even when one blower is shared by a plurality of oil supply devices, the vapor suction force does not decrease due to the oil supply device that is not used at the start of suction, and An object of the present invention is to provide an oil supply device that ensures safety at low cost.

[Means for solving problems]

In order to achieve the above object, the present invention provides an oil supply pump and a flow meter in the middle of an oil supply pipe communicating with an underground tank, connects an oil supply hose having an oil supply nozzle at the tip of the oil supply pipe, and connects the oil supply nozzle. In the fueling device equipped with a nozzle hook that hangs up, and a nozzle switch that operates by hooking and unplugging the oiling nozzle in the vicinity, and is equipped with multiple oiling devices connected to a blower in a fueling device equipped with a fueling amount indicator that interlocks with the flow meter The vapor suction pipe is connected to the prepared pipe, the vapor suction pipe is opened at the nozzle tip of the oil supply nozzle, a valve is provided in the middle of this vapor suction pipe, and opening / closing of this valve and ON / OFF of the nozzle switch are interlocked. The main point is to do so.

[Action]

According to the present invention, when the refueling nozzle is removed, the valve provided in the vapor suction pipe is opened in conjunction with this, and the vapor generated during refueling is collected. Therefore, the blower can be kept in the operating state at all times, and even if one blower is shared by a plurality of oil supply devices, the suction force does not decrease at the start of suction due to the unused oil supply device.

〔Example〕

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a vertical cross-sectional front view showing an embodiment of an oil supply device of the present invention,
FIG. 2 is a longitudinal side view of the main part of the same as above. In the figure, reference numeral 1 denotes a refueling device, and the refueling device 1 is a fixed type as an example. As is well known, this is an exterior that stands on an island 2. In the case 3, an oil supply pipe 5 communicating with the underground tank 4 is arranged, an oil supply pump 6 and a flow meter 7 are provided in the middle of the oil supply pipe 5, and an oil supply motor 8 is connected to the oil supply pump 6.

The end of the oil supply pipe 5 is located outside the case 3 and is attached to the tip of the oil supply nozzle.
A nozzle switch 13 which is connected to an oil supply hose 9 having 10 and which is provided on the side of the case 3 for hanging the oil supply nozzle 10, and which operates in the vicinity of the nozzle hook 13 when the oil supply nozzle 10 is unhooked.
11 is provided. In the figure, reference numeral 12 is an oil supply amount indicator that is linked to the flow meter 7.

In such an oil supply device 1, as shown in FIG. 2, one end of the vapor suction pipe 14 is opened slightly before the nozzle tip 10a of the oil supply nozzle 10. And this vapor suction tube 14
Is installed in the exterior case 3, a valve 15 is provided in the vicinity of the nozzle switch 11 in the middle of the vapor suction pipe 14, and a rod 24 interlocking with a lever 23 that swings when the fueling nozzle 10 is undocked is connected to the nozzle switch 11. The lever 16 and the lever 25 of the valve 15 are connected so that opening / closing of the valve 15 and ON / OFF of the nozzle switch 11 are interlocked.

Similarly, another oil supply device 1'is also provided with a vapor suction pipe 14 'provided with a valve 15' on the way, and these vapor suction pipes 14, 1 are provided.
4'is connected by a pipe 20, a blower 17 for suction is attached in the middle of the pipe 20, and the end of the pipe 20 is connected to an underground tank 4 or a vapor processing device (not shown). In the figure, 18 indicates a motor for driving the blower 17.

As shown in the blower wiring diagram of FIG. 4, the blower 17 has a motor 18 of the blower 17 in parallel with a series connection circuit of the nozzle switches 11, 11 'and the refueling motors 8, 8'for each refueling device. Connected to the main switch 19.

Next, the usage and operation will be described. If the main switch 19 which is the original power source is closed when the gas station is opened, the motor 18 of the blower 17 is energized and the blower 17 starts driving. The blower 17 continues to rotate while the gas station with the main switch 19 closed is open.

By the way, in order to refuel, when the refueling nozzle 10 is removed from the nozzle hook 13, the lever 23 swings, the rod 24 slides to the right, and the levers 16 and 25 rotate. As a result, the nozzle switch 11 is closed and the refueling motor 8 is energized to start the refueling pump 6,
The refueling amount display meter 12 is reset to zero. At the same time, the valve 15 opens, the vapor suction pipe 14 and the pipe 20 communicate with each other, and as shown in FIG. 3, the nozzle tip 10a of the refueling nozzle 10 is inserted into the refueling port of the fuel tank 21 of an automobile or the like and the valve is opened to refuel the pump. The oil sucked up from the underground tank 4 by the action of 6 is discharged into the fuel tank 21. At that time, the vapor is discharged from the fuel tank 21, but this vapor is recovered by the suction force of the blower 17 which is already operating, through the vapor suction pipe 14 and the pipe 20 to the underground tank 4 or the vapor processing device. .

In the same manner for the other refueling devices 1 ', if the refueling nozzle 10' is removed from the nozzle hook 13 'for refueling, the nozzle switch 11' is closed and the valve 15 'is opened in conjunction with this.
The vapor discharged from the fuel tank 21 by the action of the blower 17 is sucked into the vapor suction pipe 14. In this case, the valves 15 and 15 'are opened only for the lubricator 1 and 1'used,
Vapor suction force does not decrease due to unused refueling devices 1 and 1 '.

On the other hand, the amount of refueling measured by the flow meter 7 is displayed on the refueling amount indicator 12, and if the refueling nozzle 10 is returned to the nozzle hook 13 after the end of refueling, the lever 23 and the rod 24 are returned, the nozzle switch 11 is closed, and the refueling motor 8 Is stopped and the valve 15 is closed at the same time. In addition,
At this time, the valve 15 is closed, but the motor 18 of the blower 17 continues to operate.

〔The invention's effect〕

As described above, the refueling device of the present invention allows the blower to be operated even when the vapor is not collected, so the suction force is not weakened by the refueling device that is not used at the start of absorption of the vapor, and Since the suction start and the end are performed by opening and closing the valve, the structure is simple and the manufacturing cost is low.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional front view showing an embodiment of an oil supply device of the present invention,
2 is a vertical side view of the main part of the same, FIG. 3 is a side view of the fueling nozzle portion, and FIG. 4 is a wiring diagram of the blower. 1,1 '... Refueling device, 2,2' ... Island 3,3 '... Exterior case, 4 ... Underground tank 5,5' ... Refueling pipe, 6,6 '... Refueling pump 7,7' ... Flowmeter, 8 , 8 '... Refueling motor 9,9' ... Refueling hose, 10, 10 '... Refueling nozzle 10a, 10a' ... Nozzle tip 11, 11 '... Nozzle switch 12, 12' ... Refueling amount indicator 13, 13 '... Nozzle Hook, 14,14 '... Vapor suction pipe 15,15' ... Valve, 16 ... Lever 17 ... Blower, 18 ... Motor 19 ... Main switch, 20 ... Pipe 21 ... Fuel tank, 23 ... Lever 24 ... Rod, 25 ... Lever

Claims (1)

[Claims] 1. A refueling pump and a flow meter are provided in the middle of a refueling pipe communicating with an underground tank, a refueling hose having a refueling nozzle at the tip is connected to the end of the refueling pipe, and a nozzle hook for hanging the refueling nozzle is provided. , In the vicinity of that, a nozzle switch that operates by unplugging the refueling nozzle is installed, and in a refueling device equipped with a refueling amount indicator that interlocks with the flow meter, vapor suction to the pipes connected to the blower and arranged in multiple refueling devices A pipe is connected, the vapor suction pipe is opened at the nozzle tip portion of the oil supply nozzle, a valve is provided in the middle of the vapor suction pipe, and opening / closing of this valve and ON / OFF of the nozzle switch are interlocked with each other. And refueling equipment.