JPS6034639Y2 - Oil supply device with oil storage tank - Google Patents

Description

[Detailed Description of the Invention] The present invention particularly relates to a refueling device installed at a gas station or the like and used to refuel automobiles with gasoline, light oil, etc.

Usually, small-scale fueling stations often use a fueling system that integrates an oil storage tank and equipment such as a pump and a flow meter.

This oil storage tank usually has a capacity of 600 ml. When the amount of oil stored in a car decreases, a suction hose is connected and the pump used for refueling is driven in reverse to suck oil from a drum or other source and replenish the oil.

Therefore, after replenishing the oil storage tank, the suction hose is removed and returned to the warehouse, etc. However, it is troublesome to attach and detach the suction hose, and there is some oil left inside the suction hose. When carried, there is a risk of dripping and spreading on the ground from the refueling device to the warehouse or inside the warehouse, igniting, and causing a fire.

Additionally, oil spread on the ground can cause workers to slip and fall over their work clothes.

The present invention is proposed to solve the above-mentioned problems. Specifically, by sequentially connecting an oil storage tank, a pump, a flow meter, an oil supply hose, and a nozzle, and driving the pump in normal rotation, the oil in the oil storage tank is The oil supply device is configured such that oil is supplied from a nozzle, and at least a housing containing the pump and the flow meter is substantially integrated with the oil storage tank, and a flow path between the pump and the flow meter is provided. By branching and connecting a suction hose, oil is sent to the oil storage tank through this suction hose by driving the pump in forward and reverse directions, and the suction hose is housed in the housing and can be opened and closed. The suction hose is configured to be able to be taken out from the housing via a flexible lever.

The illustrated embodiment will be described in detail below.

1 is an oil supply device, and a wall 2 of the oil storage tank 2 is installed at the front of the oil storage tank 2.
An equipment housing section 4 is formed surrounded by a housing 3 which is an extension of the housing 3.

Inside the equipment storage section 4, one end is located near the bottom of the oil storage tank 2 and has a wall surface 2.
” and opens into the oil storage tank 2, and the other end is a shutoff valve (closed only during maintenance and at the end of the workday, and kept open at all times)
5. A conduit 10 is arranged and housed which sequentially passes through the pump 6, the three-way switching valve 7, the check valve 5', and the flow meter 8 and communicates with the refueling hose 9.

M is a motor that drives the pump 6 through a transmission mechanism 12 in forward or reverse rotation according to conditions to be described later.

13 is a display device that displays the value measured by the flow meter 8.

14 is a nozzle case in which the nozzle 15 connected to the tip of the hose 9 is stored when not in use.

A suction hose 16 has one end connected to the three-way switching valve 7, and the other end connected to a suction pipe 17, and a filter 18 is attached to the tip of the suction pipe 17.

19 is a can for receiving residual oil in the suction pipe 17 and suction hose 16 when it drips; 20 is a hose hook; and 21 is a moving caster installed on the bottom surface of the oil supply device 1.

22 is a first door (lid) that is opened when taking out the suction hose 16, and 23 is a second door that is opened during maintenance of the pump, flow meter, etc.

First door 22. The second doors 23 are each attached to the housing 3 by a hinge 24, and by unlocking the lock 25 provided on the first door 22, the hinges 23 are opened.
It can be opened outwards centering on 4.

26 is a display reading window of the display 13 formed in the second door 23, and a transparent glass plate is placed on the front, and the display is read through this glass plate. =27 is a three-way switching valve. 7
Bundle 27 is a bundle for switching the flow path of the second
When it is in the solid line position in the figure, only the pump and the flow meter are communicated, and when it is in the two-dot chain line position, only the pump and the suction hose are communicated.

tsl and LS2 are switches for checking the bundle 27th position (that is, checking the flow path switching at the three-way valve 7), and when the bundle 27'fJ is at the solid line position in Figure 2, the switch □ LSI is The contact ts1p is closed, and when the switch is in the two-dot chain line position, the contact ts2p of the switch LS2 is closed.

LS3 is a switch installed at the lower end of the nozzle case 14, and its contact ts3p closes when the nozzle 15 is removed from the nozzle case 14.

CB is a control box with switch ts1. ts2. A contactor (magnetic conductor), which will be described later, receives the output from ts3 to energize the pump in forward rotation, reverse rotation, or de-energize it.
) MCI and MC2 are included.

MCIC and MC2C in Fig. 4 are contactors MCI, respectively,
By energizing each coil of MC2, each of the three pairs of contacts MCIP in FIG.
MC2P is closed.

Note that at be ct dt e* is a terminal for power supply.

In the above configuration, a case will be described in which oil in the oil storage tank 2 is supplied to a fuel tank (not shown) of an automobile through the nozzle 15.

First, when the nozzle 15 is removed from the nozzle case 14, the contact LS3p closes.

At this time, since the bundle 27 is in the position indicated by the solid line in FIG. 2, the contact ts1 of the switch LSI is closed, and the contactor M
CI coil MCIC is energized.

As a result, the contact MC3p is closed and the motor M is urged to rotate in the normal direction.

(In other words, the pump 6 is driven in normal rotation.) When the nozzle 15 is returned to the nozzle case 14 after refueling is completed, the contact ts3p of the switch LS3 opens, and the coil MOI C
The energization to is cut off, the contact MC1P is opened, and the motor M is deenergized.

□Next, to explain the case of replenishing oil from the drum to the oil storage tank 2 via the suction hose 16, first unlock the lock 25, open the first door 22 as shown by the dashed line in Fig. 3, Take out the suction hose 16 and suction pipe 17.

After the suction pipe is inserted and installed through the opening of the drum (not shown), the bundle 27 is moved to the position indicated by the two-dot chain line in FIG. 2 to switch the flow path.

This causes switch LS2 to operate.

As a result, contact LS2P is closed and coil MC2C is energized, so contact MC2P is closed and motor M
is reversely biased.

That is, since the pump 6 is driven in the reverse direction, the oil in the drum can is pumped through the suction pipe 17. Suction hose 16. Three-way switching valve7. The oil is sent into the oil storage tank 2 via the pump 6 and the shutoff valve 5 in this order.

When the oil storage tank 2 is filled, the suction pipe 17 is pulled out from the opening of the drum, the oil in the suction hose 1.6 is sufficiently suctioned out, the suction hose 16 is hooked onto the vacuum cleaner 20, and the tip of the suction pipe 17 is removed. is suspended into the can 18 and the bundle 27 is returned to the solid line position.

. As a result, the contact ts 2 p is opened and the coil MC
Since the power to 2C is cut off, contact MC2P opens and motor M is deenergized.

Furthermore, storage of the suction hose 16 is completed by closing the first door 22 and locking the lock 25.

As detailed above, there is no need to attach and detach the suction hose every time the oil storage tank is refilled, which saves time and prevents oil from dripping onto the ground or inside the warehouse, preventing fires and This eliminates the fear of falling.

[Brief explanation of drawings]

Figure 1 is a front view showing the external appearance of the oil supply system, Figure 2 is a diagram showing the internal mechanism of Figure 1, Figure 3 is a plan view showing Figure 1 in cross section, and Figures 4 and 5 are FIG. 3 is a diagram showing a control circuit of a motor. DESCRIPTION OF SYMBOLS 1... Oil supply device, 2... Oil storage tank, 3... Housing, 4... Equipment storage part, 6... Pump, 7... Three-way switching valve, 8... Flow meter, 9 ...Refueling hose, 10
・ ・Pipe line, 15... Nozzle, 16... Suction hose, 17... Suction pipe, 19... Can, 22... First door, 23... Second door, 25 ...Lock, MCI
C, MC2C...Coil, LS I P 9152
P, LS3 P, MCI P, MC2P...Contact, M...Motor, CB...Control box.

Claims (1)

[Scope of utility model registration request] By sequentially connecting an oil storage tank, a pump, a flow meter, an oil supply hose, and a nozzle, and driving the pump in normal rotation, the oil in the oil storage tank is supplied from the nozzle, and at least the pump and flow meter are connected. The Haubi you collected?
1. In a refueling system in which the pump and the oil storage tank are substantially connected to each other, a flow path between the pump and the flow meter is branched and a suction hose is connected. By driving the pump in reverse, oil is sent to the oil storage tank through the suction hose, and the suction hose is housed in the housing, and the suction hose is connected through a lid that can be opened and closed. A fuel supply device with an oil storage tank, characterized in that it is configured to be removed from the housing.