JPS6371464A - Oil feeding device - Google Patents

Abstract

PURPOSE:To improve the oil feeding efficiency in case of the manual oil supply in the cut of electricity by forming a side passage which makes a detour around a motor-driven pump and installing a manually operating pump into the side passage, in the captioned oil feeding device arranged in the gas station such as gasoline stand, etc. CONSTITUTION:An oil supplying machine 1 is equipped with a motor-=driven pump 4 driven by a motor 3, and the fuel oil inhaled from an oil storage tank through a suction pipe 5 by the drive of the pump 4 is supplied into a nozzle 9 through a discharge pipe 6 having a flow meter 7 installed and a hose 8. In this case, the suction pipe 5 and the discharge pipe 6 are connected with a bypass piping 14 which makes a detour around the motor-driven pump 4, and a manually operating pump 15 in piston system is installed into the bypass piping 14. When electricity is cut, oil supply by the manual operating pump 15 is performed by closing an opening/closing valve V1 and operating a handle 16 after opening an opening/closing valve V2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a refueling device installed at a refueling station such as a gas station.

[Prior art] In such a refueling device, in the event of a power outage, a handle was conventionally attached to the electric pump and manually rotated to refill the pump.

However, electric pumps are designed for high-speed rotation, and while motor-driven lubrication efficiency is good, manual pumps are inefficient.
If you use a pump that is efficient when driven manually, it will be less efficient when driven by a motor, and especially if the pump is of a centrifugal type, there is a problem that the pump will not rotate because it rotates manually.

[Object of the Invention] Accordingly, an object of the present invention is to provide a refueling device that improves refueling efficiency when manually refueling during a power outage.

[Structure of the Invention] The oil supply device according to the present invention is provided with a side path that bypasses the electric pump, and a manual pump is provided in the side path.

[Operations and Effects of the Invention] Accordingly, in the event of a power outage, a separate manual pump can be used to supply oil to improve manual oil supply efficiency.

[Preferred Embodiment] When carrying out the present invention, it is preferable to use a piston-type pump as the manual pump. When covered in this way, the oil supply efficiency can be improved compared to a narrow type pump.

When implementing the present invention, a first on-off valve is installed downstream of the electric pump, and a second on-off valve is installed downstream of the manual pump in the side channel.
The first on-off valve is normally open and the second on-off valve is closed, and during a power outage, the first on-off valve is closed and the second on-off valve is opened to operate the manual pump. It is preferable to

When implementing the present invention, a mechanical flow rate accumulation display meter equipped with a reset button is connected to the output shaft of the flowmeter, and the display meter always displays the daily cumulative sales amount, so that it can be used for manual refueling during power outages. In this case, it is preferable to reset the previous refueling amount to zero and display the current refueling amount.

[Example] The present invention will be described in detail below with reference to the drawings.

The figure shows the inside of the case 2 of the refueling machine 1 with the front cover (not shown) removed. The refueling machine 1 has an electric pump 4 driven by a motor 3.
A suction pipe 5 and a discharge pipe 6 are connected to an oil storage tank (not shown). This discharge piping 6 is provided with a flow meter 7, and a hose 8 is further connected to the discharge piping 6.

A nozzle 9 is connected to this hose 8, and a refueling machine 1
A nozzle switch 10 is provided for detecting that the nozzle 9 is removed from the refueling machine 1.

The output shaft 20 of the flowmeter 7 is provided with a pulse generator 11 that converts the flow rate into pulses. The pulse signal transmitted from the pulse transmitter is sent to the display 13 via the control device 12, and the flow rate measured by the flowmeter 7 is digitally displayed on the display 13, and the control The device 12 includes a nozzle switch 10. Motor 3 is connected.

The suction pipe 5 and the discharge pipe 6 are connected by a bypass pipe 14 that bypasses the electric pump 4, and the bypass pipe 14 is provided with a piston-type manual pump 15, for example. A first on-off valve V1 is provided in the discharge pipe 6 on the downstream side of the electric pump 4, and a second on-off valve V2 is provided on the downstream side of the manual pump 15 in the bypass pipe 14.

How to use: A mechanical flow rate integration indicator, that is, a totalizer 17 is provided on the output shaft 20 of the flow meter 7, and the totalizer 17 is provided with a reset button 18.

Next, the effect will be explained.

Normally, the first on-off valve V1 is open and the second on-off valve V2 is closed, and the control device 12 controls the motor 3 in a known manner to refuel the motor 3, and displays the amount of refueling on the display 13. At this time, the totalizer 17 displays the cumulative amount of refueling for the day.

In the event of a power outage, remove the cover of case 2 and close the first on-off valve V1.
is closed and the second on-off valve v2 is opened. Then, after pressing the reset button 18 and returning the display of the totalizer 17 to zero,
By swinging the handle 16 in the direction of the arrow, oil is supplied by the manual pump 15 via the suction pipe 5, the bypass pipe 14, and the discharge pipe 6.

At that time, the amount of refueling is displayed on the totalizer 17.

The manual pump 15 is of a piston type and has good efficiency, and can supply oil with much better efficiency than when the electric pump 4 is operated manually as in the past.

[Summary] As explained above, according to the present invention, it is possible to refuel with a separate manual pump during a power outage, thereby improving the refueling efficiency of manual refueling.

[Brief explanation of the drawing]

The figure is a front view of a case showing an embodiment of the present invention with the cover removed.

Claims (1)

[Claims] A refueling device characterized in that a side path is provided that bypasses an electric pump, and a manual pump is provided in the side path.