JPH0139954B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a refueling vehicle used for delivering kerosene, diesel oil, etc. to homes, factories, etc.

Such refueling vehicles are equipped with a refueling device consisting of a refueling tank, a refueling pump, a motor, a refueling hose, etc., but the vehicle's stopping position and the refueling tank are often 10 to 20 meters apart.

Therefore, in the past, the refueling pump installed in the car was started, the refueling hose was pulled out from the hose reel to the tank to be refueled, the nozzle valve at the end of the refueling hose was inserted into the tank, and the nozzle valve was opened to prepare for the car. Refuel while watching the refueling amount displayed on a refueling amount display meter. When the refueling amount reaches the specified amount, close the nozzle valve and return to the car while holding this nozzle part. After stopping the refueling motor, turn off the refueling hose. While supporting it, the hose reel was rotated and stored.

As a result, the refueling motor must be kept running for longer than the actual refueling time, which puts an unnecessary load on the direct current refueling motor powered by the automobile battery, resulting in a shortened service life.

In addition, the refueling amount indicator installed in a car that displays the amount of refueling must fit within the limited space of the car's cargo bed, so it is difficult to make it large. Therefore, if the refueling point is far away from the vehicle, it may be difficult to read the amount of refueling.

The object of the present invention is to solve the above-mentioned disadvantages, and to provide a refueling vehicle that not only can perform refueling work smoothly and eliminate unnecessary movements, but also improves safety, and is easy to read the amount of refueling and has good workability. Our goal is to provide the following.

However, according to the present invention, the purpose of the lever is to consist of a refueling device and a portable operating device, and the portable operating device includes a switch provided in the refueling device that instructs to start or stop the pump motor, and a switch from the switch that instructs the pump motor to start or stop. A transmitter for transmitting an instruction signal, a receiver for receiving a refueling signal transmitted from the refueling device, and a display section for displaying the amount of refueling based on the refueling signal are provided, and the portable operating device is mounted on the refueling device side. This is achieved by providing a receiver that receives an instruction signal from a side switch, and means for starting and stopping the pump motor based on this received signal.

Embodiments of the present invention will be described in detail below with reference to the drawings.

Fig. 1 is an external perspective view showing the usage state of the refueling vehicle of the present invention, Fig. 2 is a front view of a portable operating device used in the present invention, and Fig. 3 is a block circuit diagram showing an embodiment of the present invention. .

In the figure, 1 is a refueling vehicle commonly called a tank truck, which has an oil storage tank 2 at its rear.

A refueling pump 4, a flow meter 5, and a throttle valve 6 consisting of a solenoid valve are sequentially installed in a refueling pipe 3 communicating with an oil storage tank 2, and the tip of the refueling pipe 3 is connected to a hose reel 7.
The nozzle valve 10 is connected to the refueling hose 8 through the refueling hose 8, and the nozzle valve 10 is attached to the tip of the refueling hose 8.

A refueling motor 11 is connected to the refueling pump 4, a flow pulse transmitter 12 is attached to the flow meter 5, and a motor 13 is connected to the hose reel 7.
(See Figure 3) Also, this hose reel 7
A cam switch 14 is installed which is activated by the rotation of the refueling hose 8 and generates an output signal when the refueling hose 8 is wound onto the reel 7.

A refueling amount indicator 15 is provided on the rear surface of the oil storage tank 2, and a receiver 3, which will be described later, is connected to an antenna 16.
0, transmitter 36 and motor control circuits 31, 33,
Counting circuit 34, preset circuit 32, subtraction circuit 3
A control device (not shown) consisting of 5 is installed.

As shown in FIG. 2, the portable operating device 17 used in the present invention includes a pump motor on switch 18 that turns on the refueling pump 4 by starting and stopping the refueling motor 11, and a pump motor on switch 18 that turns off the refueling pump 4. Off switch 19, motor 13
a hose reel motor switch 20 that rotates the hose reel 7 through activation of the slip issuing switch 2;
1, and a preset numeric keypad 22, a refueling amount indicator 23, and an alarm 24 such as a buzzer are provided on the surface,
A control device (not shown) including a slip issuing device 25, a transmitter 27 connected to an antenna 26, a receiver 28, and a counting circuit 29 is built in.

As shown in FIG. 3, the on signal A of the pump motor on switch 18, the off signal B of the pump motor off switch 19, the on signal C of the hose reel motor switch 20, and the preset signal D of the preset numeric keypad 22 are sent to the transmitter. 27, and the notification signal E from the receiver 28 is transmitted to the notification device 24.
Then, the flow rate signal F is introduced into the counting circuit 29, and the counting signal H from the counting circuit 29 is introduced into the oil supply amount display meter 23 and the slip issuing machine 25. The ON signal G of the slip issuing switch 21 is introduced into the slip issuing machine 25.

On the other hand, the on signal A' and the off signal B' from the receiver 30 connected to the antenna 16 on the fuel tank 1 side are respectively introduced into the motor control circuit 31, and the drive signal I of the motor control circuit 31 is introduced into the fuel tank motor 11. do.

Similarly, the preset signal D' from the receiver 30 is introduced into the preset circuit 32, and the on signal C' is introduced into the motor control circuit 33.

A drive signal J from a motor control circuit 33 is introduced to the motor 13, and an off signal K generated when the refueling hose 8 is wound onto the hose reel 7 is also introduced from the cam switch 14 to the motor control circuit 33.

The flow rate signal F' from the flow rate pulse transmitter 12 attached to the flowmeter 5 is introduced into the counting circuit 34, the subtraction circuit 35, and the transmitter 36, and the count signal H' from the counting circuit 34 is introduced into the oil supply amount display meter 15. do.

Further, the setting signal L from the preset circuit 32 is also introduced into the subtraction circuit 35, and this subtraction circuit 35 subtracts the value of the flow rate signal F' of the pulse generator 12 from the preset value set by the setting signal L. This circuit emits an output signal M when the voltage reaches zero.

The output signal M of this subtraction circuit 35 is converted into the valve throttle signal M
-1 into the throttle valve 6, and into the transmitter 36 as a notification signal M-2.

Furthermore, the transmitter 27 on the operating device 17 side is connected to the refueling vehicle 1.
The receiver 30 on the side and the transmitter 36 on the fueling vehicle 1 side communicate with the receiver 28 on the operating device 17 side via the antennas 16 and 26, respectively, by radio signals N and O.

In another embodiment, the counting circuit 29 on the operating device 17 side is omitted, and the counting signal H' of the counting circuit 34 on the fueling vehicle 1 side is sent to the display meter 23 and the slip issuing machine via the transmitter 36 and receiver 28. 25 may be received.

Next, the usage and effect will be explained.

The refueling truck 1 is parked near the house where kerosene or the like is to be refueled, and the tip of the refueling hose 8 and the nozzle valve 10 are
When pulled by hand, the hose reel 7 rotates and the refueling hose 8 is fed out.

Carry the nozzle valve 10 to the tank 37 to be refueled (usually about 200), check the amount of remaining liquid in the tank 37, decide how much to refuel, and press the preset numeric keypad 22 of the operating device 17 to a slightly smaller value. Press the numerical value to preset.

A preset signal D is introduced from the preset numeric keypad 22 to the transmitter 27, and the preset signal is transmitted from the receiver 30 on the refueling vehicle 1 side via the wireless signal N.
D' is introduced into the preset circuit 32, and the setting signal L from the preset circuit 32 enters the subtraction circuit 35, where the preset amount is input.

Next, when the pump motor on switch 18 is pressed, the on signal A of the switch 18 is transmitted to the transmitter 27.
An on signal A' from the receiver 30 enters the motor control circuit 31 via the wireless signal N of the transmitter 27, and a drive signal I is issued from the circuit 31 to the oil supply motor 11, so that the motor 11 and the oil supply pump 4 are started. .

The nozzle part of the nozzle valve 10 is connected to the tank 3 to be supplied with oil.
7, and when the valve is opened to supply oil, the flow meter 5 rotates and the flow rate signal F' is generated from the flow rate pulse transmitter 12, which is transmitted to the counting circuit 34, transmitter 36, and subtraction circuit 35. be introduced.

The counting circuit 34 outputs the counting signal H' to the oil supply amount display meter 1.
In response to the wireless signal O transmitted from the transmitter 36, the receiver 28 introduces the flow rate signal F to the counting circuit 29, and the counting signal H from the counting circuit 29 is sent to the oil supply amount display meter on the operating device 17 side. 23 and slip issuing machine 25
The display gauges 15 and 23 display the amount of oil supplied.

The subtraction circuit 35 receives the flow rate signal F' and subtracts the actual flow rate value from the preset value set by the setting signal L. When the value becomes zero, an output signal M is generated, which is sent to the throttle valve 6 as the valve throttle signal M-1. , the valve 6 is throttled, and the amount of oil discharged from the nozzle valve 10 decreases, and the signal M becomes the notification signal M-2.
When the radio signal O is input from the transmitter 36 to the receiver 28, the alarm signal E is introduced from the receiver 28 to the alarm 24, and the alarm 24 emits an alarm sound.

In this way, since the valve 6 is simply throttled without being completely closed, when the nozzle valve 10 is closed and refueling is finished, there is a measurement error caused by the expansion of the hose 8 due to the hydraulic pressure even though the hose 8 is long. becomes less.

Until then, the worker may carry out servicing at a remote location from the tank 27, but he/she should listen to the alarm sound from the operating device 17 and close the nozzle valve when the tank 37 is full, keeping an eye on the tank 37 to ensure that the oil does not overflow. 10 to stop refueling.

Next, when the pump motor off switch 19 of the operating device 17 is pressed, an off signal B is introduced from the switch 19 to the transmitter 27, and from the transmitter 27 to the receiver 3.
An off signal B' is introduced from the receiver 30 to the motor control circuit 31 via the radio signal N sent to the motor control circuit 31,
Upon receiving this off signal B', the motor control circuit 31 cancels the drive signal I that had been output until then.

As a result, the refueling motor 11 and the refueling pump 4
stops.

If you press the slip issue switch 21, the same switch 2
1, the on signal G is introduced to the slip issuing machine 25,
This slip issuing machine 25 issues a slip based on the flow rate value of the count signal H from the counting circuit 29.

When the worker presses the hose reel motor switch 20 after settling the refueling fee, an on signal C is introduced from the switch 20 to the transmitter 27, and the transmitter 2
An on signal C' is introduced from the receiver 30 into the motor control circuit 33 via a wireless signal N emitted from the receiver 30 from the motor control circuit 33, and a drive signal J is emitted from the motor control circuit 33 to the motor 13.
3 and hose reel 7 rotate.

As the hose reel 7 rotates, the refueling hose 8
Since the refueling hose 8 is gradually hoisted up, the refueling hose 8 will not be bent significantly as in the conventional example if the hose 8 is returned to the refueling truck 1 by holding the tip of the hose 8 and the nozzle valve 10 according to the hoisting speed.

When the refueling hose 8 is completely wound up on the reel 7, the cam switch 14 issues an off signal K to the motor control circuit 33, and the motor control circuit 3
3 receives this signal K and cancels the drive signal J that has been issued so far, and as a result, the motor 13 and the hose reel 7 are stopped.

As described above, the refueling vehicle of the present invention enables wireless control of the refueling device installed in the refueling vehicle, so even if the refueling vehicle and the tank to be refueled are far apart, the refueling motor is not wasted for more than the actual refueling time. It also helps improve safety because it does not cause faster wear and tear when moving, and the refueling motor can only be started after the refueling condition has been established.Furthermore, the amount of refueling is displayed on the portable control device at hand. This makes it easy to see the amount of refueling even if the refueling point is far away from the refueling vehicle.
It is possible to accurately refuel the amount of refueling specified by the customer.

Furthermore, if an alarm is automatically issued immediately before the end of refueling, it is possible to prevent oil from overflowing from the tank even if the worker is preoccupied with other things during refueling.

[Brief explanation of drawings]

Fig. 1 is an external perspective view showing the usage state of the refueling vehicle of the present invention, Fig. 2 is a front view of a portable operating device used in the present invention, and Fig. 3 is a block circuit diagram showing an embodiment of the present invention. . 1...Refueling truck, 2...Refueling tank, 3...Refueling pipe, 4...Refueling pump, 5...Flow meter, 6... Throttle valve, 7...Hose reel, 8...Refueling hose,
10...Nozzle valve, 11...Refueling motor,
12...Flow rate pulse transmitter, 13...Motor,
14...Cam switch, 15...Refueling amount indicator,
16... Antenna, 17... Portable control device, 18
... Pump motor on switch, 19 ... Pump motor off switch, 20 ... Hose reel motor switch, 21 ... Slip issuing switch,
22...Numeric keypad for preset, 23...Refueling amount display meter, 24...Alarm, 25...Slip issuing machine,
26... Antenna, 27... Transmitter, 28... Receiver, 29... Counting circuit, 30... Receiver, 3
1, 33... Motor control circuit, 32... Preset circuit, 34... Counting circuit, 35... Subtraction circuit, 36... Transmitter, 37... Refueling tank,
A, A'...On signal, B, B'...Off signal, C,
C'...On signal, D, D'...Preset signal, E
...Notification signal, F, F'...Flow rate signal, G...On signal, H, H'...Counting signal, I, J...Drive signal, K...Off signal, L...Setting signal, M ...output signal, M-1...valve throttle signal, M-2...notification signal, N, O...wireless signal.

Claims (1)

[Claims] 1 Consisting of a refueling device and a portable operating device, the portable operating device includes a switch provided in the refueling device that instructs to start or stop the pump motor, a transmitter that sends an instruction signal from the switch, and a refueling device. A receiver for receiving a refueling signal transmitted from the device and a display section for displaying the amount of refueling based on the refueling signal are provided, and the refueling device receives an instruction signal from the switch on the portable operating device side. A refueling vehicle characterized by being provided with a receiver and means for starting and stopping a pump motor based on the received signal.